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Qiu J, Mei X, Zhang M, Wang G, Zou S, Wen L, Huang J, Hua Y, Zhang X. Dipolar Chemical Bridge Induced CsPbI 3 Perovskite Solar Cells with 21.86 % Efficiency. Angew Chem Int Ed Engl 2024; 63:e202401751. [PMID: 38436532 DOI: 10.1002/anie.202401751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/05/2024]
Abstract
CsPbI3 perovskite receives tremendous attention for photovoltaic applications due to its ideal band gap and good thermal stability. However, CsPbI3 perovskite solar cells (PSCs) significantly suffer from photovoltage deficits because of serious interfacial energy losses within the PSCs, which to a large extent affects the photovoltaic performance of PSCs. Herein, a dipolar chemical bridge (DCB) is constructed between the perovskite and TiO2 layers to lower interfacial energy losses and thus improve the charge extraction of PSCs. The results reveal that the DCB could form a beneficial interfacial dipole between the perovskite and TiO2 layers, which could optimize the interfacial energetics of perovskite/TiO2 layers and thus improve the energy level alignment within the PSCs. Meanwhile, the constructed DCB could also simultaneously passivate the surface defects of perovskite and TiO2 layers, greatly lowering interfacial recombination. Consequently, the photovoltage deficit of CsPbI3 PSCs is largely reduced, leading to a record efficiency of 21.86 % being realized. Meanwhile, the operation stability of PSCs is also largely improved due to the high-quality perovskite films with released interfacial tensile strain being obtained after forming the DCB within the PSCs.
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Affiliation(s)
- Junming Qiu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Xinyi Mei
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Mingxu Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Guoliang Wang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Shengwen Zou
- School of Energy and Power Engineering, Beihang University, Beijing, 100191, China
| | - Long Wen
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Jianmei Huang
- School of Energy and Power Engineering, Beihang University, Beijing, 100191, China
| | - Yong Hua
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
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Xu Y, Chen Y, Zong X, Luo J, Sun Z, Liang M, Xue S. Spiro-Bifluorene-Cored Dopant-Free Conjugated Polymeric Hole-Transporting Materials Containing Passivation Parts for Inverted Perovskite Solar Cells. ACS Appl Mater Interfaces 2024. [PMID: 38593038 DOI: 10.1021/acsami.3c19125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Two spiro-bifluorene-based dopant-free HTMs (X22 and X23) have been synthesized by facilely condensing spiro-bifluorene diamine with 3,4-ethylenedioxythiophene (EDOT)-5,7-dicarbonyl dichloride and 2,3,5,6-tetrafluoro-terephthaloyl dichloride, respectively. In the X22 molecule, lone pairs of electrons on the sulfur (S) and oxygen (O) functional groups interact with the perovskite materials. The hole mobility (μh) of X22 (3.9 × 10-4 cm2 V-1 S1-) is more than twice that of X23 (1.4 × 10-4 cm2 V-1 S1-). The conductivity (σ0) of X22 is 2.73 × 10-4 S cm-1, which is also higher than that of X23 (2.39 × 10-4 S cm-1). The EDOT moiety benefits the contact angle of CH3NH3PbI3 precursor solutions on HTMs as low as 24°. The X22-based device with an indium-doped tin oxide/hole transport material (HTM)/CH3NH3PbI3/phenyl-C61-butyric acid methyl ester (PC61BM)/bathocuproine/Ag structure achieves a power conversion efficiency (PCE) of 19.18%. The PCE of the device based on X23 containing fluorine is 18.70%, and the contact angle between HTM and the perovskite precursor solution is 32°. The X22- and X23-based devices at ambient temperature (≈25 °C) in N2 retain 86% and 79% of the initial PCE after 150 days. The effect of S, O, and F heteroatoms plays an important role in the side chain modification of HTMs, improving defect passivation in HTM/CH3NH3PbI3 interfaces by multiple functional groups.
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Affiliation(s)
- Yuanyuan Xu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Yu Chen
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Xueping Zong
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Jiangzhou Luo
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Zhe Sun
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Mao Liang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Song Xue
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
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Hu R, Wang T, Wang F, Li Y, Sun Y, Liang X, Zhou X, Yang G, Li Q, Zhang F, Zhu Q, Li X, Hu H. Hexylammonium Acetate-Regulated Buried Interface for Efficient and Stable Perovskite Solar Cells. Nanomaterials (Basel) 2024; 14:653. [PMID: 38668147 PMCID: PMC11055040 DOI: 10.3390/nano14080653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/29/2024]
Abstract
Due to current issues of energy-level mismatch and low transport efficiency in commonly used electron transport layers (ETLs), such as TiO2 and SnO2, finding a more effective method to passivate the ETL and perovskite interface has become an urgent matter. In this work, we integrated a new material, the ionic liquid (IL) hexylammonium acetate (HAAc), into the SnO2/perovskite interface to improve performance via the improvement of perovskite quality formed by the two-step method. The IL anions fill oxygen vacancy defects in SnO2, while the IL cations interact chemically with Pb2+ within the perovskite structure, reducing defects and optimizing the morphology of the perovskite film such that the energy levels of the ETL and perovskite become better matched. Consequently, the decrease in non-radiative recombination promotes enhanced electron transport efficiency. Utilizing HAAc, we successfully regulated the morphology and defect states of the perovskite layer, resulting in devices surpassing 24% efficiency. This research breakthrough not only introduces a novel material but also propels the utilization of ILs in enhancing the performance of perovskite photovoltaic systems using two-step synthesis.
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Affiliation(s)
- Ruiyuan Hu
- Jiangsu Provincial Engineering Research Center of Low-Dimensional Physics and New Energy & School of Science, Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (T.W.); (Y.L.); (Y.S.); (F.Z.)
| | - Taomiao Wang
- Jiangsu Provincial Engineering Research Center of Low-Dimensional Physics and New Energy & School of Science, Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (T.W.); (Y.L.); (Y.S.); (F.Z.)
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
| | - Fei Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
| | - Yongjun Li
- Jiangsu Provincial Engineering Research Center of Low-Dimensional Physics and New Energy & School of Science, Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (T.W.); (Y.L.); (Y.S.); (F.Z.)
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
| | - Yonggui Sun
- Jiangsu Provincial Engineering Research Center of Low-Dimensional Physics and New Energy & School of Science, Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (T.W.); (Y.L.); (Y.S.); (F.Z.)
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
| | - Xiao Liang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
| | - Xianfang Zhou
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
| | - Guo Yang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
| | - Qiannan Li
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
| | - Fan Zhang
- Jiangsu Provincial Engineering Research Center of Low-Dimensional Physics and New Energy & School of Science, Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (T.W.); (Y.L.); (Y.S.); (F.Z.)
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
| | - Quanyao Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
| | - Xing’ao Li
- Jiangsu Provincial Engineering Research Center of Low-Dimensional Physics and New Energy & School of Science, Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (T.W.); (Y.L.); (Y.S.); (F.Z.)
| | - Hanlin Hu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, China; (F.W.); (X.L.); (X.Z.); (G.Y.); (Q.L.)
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Wang Y, Zou J, Zhao C, Jiang H, Song Y, Zhang L, Li X, Wang F, Fan L, Liu X, Wei M, Yang L. Building a Charge Transfer Bridge between g-C 3N 4 and Perovskite with Molecular Engineering to Achieve Efficient Perovskite Solar Cells. ACS Appl Mater Interfaces 2024; 16:13815-13827. [PMID: 38442230 DOI: 10.1021/acsami.3c19475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Effective defect passivation and efficient charge transfer within polycrystalline perovskite grains and corresponding boundaries are necessary to achieve highly efficient perovskite solar cells (PSCs). Herein, focusing on the boundary location of g-C3N4 during the crystallization modulation on perovskite, molecular engineering of 4-carboxyl-3-fluorophenylboronic acid (BF) on g-C3N4 was designed to obtain a novel additive named BFCN. With the help of the strong bonding ability of BF with both g-C3N4 and perovskite and favorable intramolecular charge transfer within BFCN, not only has the crystal quality of perovskite films been improved due to the effective defects passivation, but the charge transfer has also been greatly accelerated due to the formation of additional charge transfer channels on the grain boundaries. As a result, the champion BFCN-based PSCs achieve the highest photoelectric conversion efficiency (PCE) of 23.71% with good stability.
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Affiliation(s)
- Yingjie Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Jinhang Zou
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Congyu Zhao
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Haipeng Jiang
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuhuan Song
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Le Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Xin Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Fengyou Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Lin Fan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Xiaoyan Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130013, China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China
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5
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Li M, Zhu Z, Wang Z, Pan W, Cao X, Wu G, Chen R. High-Quality Hybrid Perovskite Thin Films by Post-Treatment Technologies in Photovoltaic Applications. Adv Mater 2024; 36:e2309428. [PMID: 37983565 DOI: 10.1002/adma.202309428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/02/2023] [Indexed: 11/22/2023]
Abstract
Incredible progress in photovoltaic devices based on hybrid perovskite materials has been made in the past few decades, and a record-certified power conversion efficiency (PCE) of over 26% has been achieved in single-junction perovskite solar cells (PSCs). In the fabrication of high-efficiency PSCs, the postprocessing procedures toward perovskites are essential for designing high-quality perovskite thin films; developing efficient and reliable post-treatment techniques is very important to promote the progress of PSCs. Here, recent post-treatment technological reforms toward perovskite thin films are summarized, and the principal functions of the post-treatment strategies on the design of high-quality perovskite films have been thoroughly analyzed by dividing into two categories in this review: thermal annealing (TA)-related technique and TA-free technique. The latest research progress of the above two types of post-treatment techniques is summarized and discussed, focusing on the optimization of postprocessing conditions, the regulation of perovskite qualities, and the enhancement of device performance. Finally, an outlook of the prospect trends and future challenges for the fabrication of the perovskite layer and the production of highly efficient PSCs is given.
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Affiliation(s)
- Mingguang Li
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
- Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, P. R. China
| | - Zheng Zhu
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
| | - Zhizhi Wang
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
| | - Wenjing Pan
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
| | - Xinxiu Cao
- Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, P. R. China
| | - Guangbao Wu
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
| | - Runfeng Chen
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
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Li Q, Wu J, Guo Q, Qin L, Xue L, Geng Y, Li X, Zhang ZG, Yan Q, Zhou E. Effect of Number and Position of Chlorine Atoms on the Photovoltaic Performance of Asymmetric Nonfullerene Acceptors. ACS Appl Mater Interfaces 2024; 16:3755-3763. [PMID: 38190611 DOI: 10.1021/acsami.3c15518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
It has been well proved that the introduction of halogen can effectively modify the optoelectronic properties of classic symmetric nonfullerene acceptors (NFAs). However, the relevant studies for asymmetric NFAs are limited, especially the effect of halogen substitution number and position on the photovoltaic performance is not clear. In this work, four asymmetric NFAs with A-D-A1-A2 structure are developed by tuning the number and position of chlorine atoms on the 1,1-dicyanomethylene-3-indanone end groups, namely, A303, A304, A305, and A306. The related NFAs show progressively deeper energy levels and red-shifted absorption spectra as the degree of chlorination increases. The PM6:A306-constructed organic solar cells (OSCs) give a champion power conversion efficiency (PCE) of 13.03%. This is mainly ascribed to the most efficient exciton dissociation and collection, suppressed charge recombination, and optimal morphology. Moreover, by alternating the substitution position, the PM6:A305-based device yielded a higher PCE of 12.53% than that of PM6:A304 (12.05%). This work offers fresh insights into establishing excellent asymmetric NFAs for OSCs.
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Affiliation(s)
- Qingbin Li
- Institute of Nuclear Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Jiang Wu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
| | - Qing Guo
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
| | - Linjiao Qin
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
| | - Lingwei Xue
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Yanfang Geng
- National Center for Nanoscience and Technology, Beijing 100190, China
| | - Xiangyu Li
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
| | - Zhi-Guo Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qingzhi Yan
- Institute of Nuclear Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Erjun Zhou
- National Center for Nanoscience and Technology, Beijing 100190, China
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Liu L, Yan Y, Zhao S, Wang T, Zhang W, Zhang J, Hao X, Zhang Y, Zhang X, Wei Z. Stereoisomeric Non-Fullerene Acceptors-Based Organic Solar Cells. Small 2024; 20:e2305638. [PMID: 37699757 DOI: 10.1002/smll.202305638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/20/2023] [Indexed: 09/14/2023]
Abstract
Chiral alkyl chains are ubiquitously observed in organic semiconductor materials and can regulate solution processability and active layer morphology, but the effect of stereoisomers on photovoltaic performance has rarely been investigated. For the racemic Y-type acceptors widely used in organic solar cells, it remains unknown if the individual chiral molecules separate into the conglomerate phase or if racemic phase prevails. Here, the photovoltaic performance of enantiomerically pure Y6 derivatives, (S,S)/(R,R)-BTP-4F, and their chiral mixtures are compared. It is found that (S,S) and (R,R)-BTP-4F molecule in the racemic mixtures tends to interact with its enantiomer. The racemic mixtures enable efficient light harvesting, fast hole transfer, and long polaron lifetime, which is conducive to charge generation and suppresses the recombination losses. Moreover, abundant charge diffusion pathways provided by the racemate contribute to efficient charge transport. As a result, the racemate system maximizes the power output and minimizes losses, leading to a higher efficiency of 18.16% and a reduced energy loss of 0.549 eV, as compared to the enantiomerically pure molecules. This study demonstrates that the chirality of non-fullerene acceptors should receive more attention and be designed rationally to enhance the efficiency of organic solar cells.
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Affiliation(s)
- Lixuan Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Future Technology, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Yangjun Yan
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Shengda Zhao
- School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Tong Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Wenqing Zhang
- School of Physics, State Key Laboratory of Crystal Material, Shandong University, Jinan, 250100, China
| | - Jianqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xiaotao Hao
- School of Physics, State Key Laboratory of Crystal Material, Shandong University, Jinan, 250100, China
| | - Yajie Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xinghua Zhang
- School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Zhixiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Future Technology, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
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8
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Chen J, Jia D, Zhuang R, Hua Y, Zhang X. Rejuvenating Aged Perovskite Quantum Dots for Efficient Solar Cells. Adv Mater 2024; 36:e2306854. [PMID: 37729595 DOI: 10.1002/adma.202306854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/08/2023] [Indexed: 09/22/2023]
Abstract
Perovskite quantum dots (PQDs) have emerged as one of the most promising candidates for next-generation solar cells owing to its remarkable optoelectronic properties and solution processability. However, the optoelectronic properties of PQDs suffer from severe degradation in storage due to the dynamically binding ligands, predominantly affecting photovoltaic applications. Herein, an in situ defect healing treatment (DHT) is reported to effectively rejuvenate aged PQDs. Systematically, experimental studies and theoretical calculations are performed to fundamentally understand the causes leading to the recovered optoelectronic properties of aged PQDs. The results reveal that the I3 - anions produced from tetra-n-octylammonium iodide and iodine could strongly anchor on the surface matrix defects of aged PQDs, substantially diminishing the nonradiative recombination of photogenerated charge carriers. Meanwhile, an DHT could also renovate the morphology of aged PQDs and thus improve the stacking orientation of PQD solids, substantially ameliorating charge carrier transport within PQD solids. Consequently, by using a DHT, the PQD solar cell (PQDSC) yields a high efficiency of up to 15.88%, which is comparable with the PQDSCs fabricated using fresh PQDs. Meanwhile, the stability of PQDSCs fabricated using the rejuvenated PQDs is also largely improved.
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Affiliation(s)
- Jingxuan Chen
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Donglin Jia
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Rongshan Zhuang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Yong Hua
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
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9
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Gao L, Hao K, Hu P, Zhang J, Yang F, Huang S, Su H, Zheng X, Que M. Bottom Distribution of F-Based Additives in Perovskite Films and Their Effects on Photovoltaic Performance. ACS Appl Mater Interfaces 2023; 15:50148-50154. [PMID: 37856670 DOI: 10.1021/acsami.3c09294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Various additives have been introduced to assist in film preparation and defect passivation. Herein, fluoroiodobenzene (FIB) molecules with different numbers of F atoms were incorporated into perovskite films to optimize the film quality as well as passivate defects. Based on the calculation and experimental results, it was found that the FIB additives were inclined to exist at the bottom of the film because of the strong affinity between F atoms stemming from FIB molecules and O atoms stemming from TiO2, especially for molecules with more F atoms. By optimization of the FIB molecule, the perovskite film crystallinity was significantly improved, the carrier lifetimes were prolonged, and the charge extraction ability was also enhanced. The device with FIB with one F atom achieved a photoelectrical conversion efficiency as high as 22.89% with a Voc of 1.118 V, fill factor (FF) of 80.44%, and Jsc of 25.45 mA cm-2, which was much higher than that of the control device with an efficiency of 20.87%. Furthermore, FIB molecules with three and five F atoms also achieved higher efficiency than that of the control device. The devices with FIB molecules showed better stability than the devices without additives. The unencapsulated devices with FIB additives held 90% of their original efficiencies in an ambient environment with a temperature of 15-25 °C and a relative humidity of 20-30%, while the control device dropped to 76% after more than 1000 h.
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Affiliation(s)
- Lili Gao
- College of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Ke Hao
- College of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Ping Hu
- College of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Jing Zhang
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China
| | - Fan Yang
- College of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Sheng Huang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, P. R. China
| | - Hang Su
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China
| | - Xinxin Zheng
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China
| | - Meidan Que
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, P. R. China
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10
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Chi S, Yang S, Wang Y, Li D, Zhang L, Fan L, Wang F, Liu X, Liu H, Wei M, Yang J, Yang L. Break through the Steric Hindrance of Ionic Liquids with Carbon Quantum Dots to Achieve Efficient and Stable Perovskite Solar Cells. ACS Appl Mater Interfaces 2023; 15:48304-48315. [PMID: 37792963 DOI: 10.1021/acsami.3c11370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Overcoming the negative impact of residual ionic liquids (ILs) on perovskite films based on an in-depth understanding of chemical interactions between ionic liquids and preparing perovskite precursor solutions is a great challenge when aiming to simultaneously achieve long-term stability and high efficiency within IL-based perovskite solar cells (PSCs). Herein, 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), a type of IL, was introduced into the perovskite precursor solution, and carbon quantum dots (CQDs) were further introduced into the antisolvent to enhance the photovoltaic properties of PSCs. Both ILs and CQDs synergistically manipulate the crystallization process and passivate defects to obtain high-quality perovskite films. Besides serving as passivation sites to strengthen the collaboration between additives and perovskite materials, the cointroduction of CQDs further promotes the carrier transport process since it not only provides carrier channels at grain boundaries but also forms better energy alignment, which effectively overcomes the charge transfer loss caused by the steric hindrance of ILs. Based on such a synergistic effect of ILs and CQDs, the n-i-p MAPbI3-based PSCs achieve the highest efficiency of 20.84% with improved stability. This simple and low-cost synergistic integration method will subsequently provide direction for optimizing ILs to improve the photovoltaic performance of PSCs.
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Affiliation(s)
- Shaohua Chi
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Shuo Yang
- College of Science, Changchun University, Changchun 130022, P. R. China
| | - Yijie Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Dan Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Le Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Lin Fan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Fengyou Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Xiaoyan Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Huilian Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
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11
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Liu R, Hu X, Xu M, Ren H, Yu H. Layered Low-Dimensional Ruddlesden-Popper and Dion-Jacobson Perovskites: From Material Properties to Photovoltaic Device Performance. ChemSusChem 2023; 16:e202300736. [PMID: 37321966 DOI: 10.1002/cssc.202300736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/17/2023]
Abstract
Layered low-dimensional halide perovskites (LDPs) with multiple quantum well structure have shown increasing research interest in photovoltaic solar cell applications owing to their intrinsic moisture stability and favorable photophysical properties in comparison with their three-dimensional (3D) counterparts. The most common LDPs are Ruddlesden-Popper (RP) phases and Dion-Jacobson (DJ) phases, both of which have made significant research advances in efficiency and stability. However, distinct interlayer cations between RP and DJ phase lead to disparate chemical bonds and different perovskite structures, which endow RP and DJ perovskite with distinctive chemical and physical properties. Plenty of reviews have reported the research progress of LDPs but no summary has elaborated from the perspective of the merits and drawbacks of the RP and DJ phases. Herein, in this review, we offer a comprehensive expound on the merits and promises of RP and DJ LDPs from their chemical structure, physicochemical properties, and photovoltaic performance research progress aiming to provide a new insight into the dominance of RP and DJ phases. Then, we reviewed the recent progress on the synthesis and implementation of RP and DJ LDPs thin films and devices, as well as their optoelectronic properties. Finally, we discussed the possible strategies to resolve existing toughs to realize the desired high-performance LDPs solar cells.
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Affiliation(s)
- Rui Liu
- School of New Energy and Materials, Southwest Petroleum University, 610500, Chengdu, P. R. China
| | - Xin Hu
- School of New Energy and Materials, Southwest Petroleum University, 610500, Chengdu, P. R. China
| | - Maoxia Xu
- School of New Energy and Materials, Southwest Petroleum University, 610500, Chengdu, P. R. China
| | - Haorong Ren
- School of New Energy and Materials, Southwest Petroleum University, 610500, Chengdu, P. R. China
| | - Hua Yu
- School of New Energy and Materials, Southwest Petroleum University, 610500, Chengdu, P. R. China
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12
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Wang Q, Qiu P, Luo X, Zheng C, Wang S, Ren X, Gao J, Lu X, Gao X, Shui L, Wu S, Liu JM. Mutually Tuned Dual Additive Engineering Synergistically Enhances the Photovoltaic Performance of Tin-Based Perovskite Solar Cells. ACS Appl Mater Interfaces 2023; 15:45064-45075. [PMID: 37710994 DOI: 10.1021/acsami.3c11009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Tin-based perovskite solar cells (T-PSCs) have become the star photovoltaic products in recent years due to their low environmental toxicity and superior photovoltaic performance. However, the easy oxidation of Sn2+ and the energy level mismatch between the perovskite film and charge transport layer limit its efficiency. In order to regulate the microstructure and photoelectric properties of tin-based perovskite films to enhance the efficiency and stability of T-PSCs, guanidinium bromide (GABr) and organic Lewis-based additive methylamine cyanate (MAOCN) are introduced into the FA0.9PEA0.1SnI3-based perovskite precursor. A series of characterizations show that the interactions between additive molecules and perovskite mutually reconcile to improve the photovoltaic performance of T-PSCs. The introduction of GABr can adjust the band gap of the perovskite film and energy level alignment of T-PSCs. They significantly increase the open-circuit voltage (Voc). The MAOCN material can form hydrogen bonds with SnI2 in the precursor, which can inhibit the oxidation of Sn2+ and significantly improve the short-circuit current density (Jsc). The synergistic modulation of the dual additives reduces the trap-state density and improves photovoltaic performance, resulting in an increased champion efficiency of 9.34 for 5.22% of the control PSCs. The unencapsulated T-PSCs with GABr and MAOCN dual additives prepared in the optimized process can retain more than 110% of their initial efficiency after aging for 1750 h in a nitrogen glovebox, but the control PSCs maintain only 50% of their initial efficiency kept in the same conditions. This work provides a new perspective to further improve the efficiency and stability of T-PSCs.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Jun-Ming Liu
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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13
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Guo Y, Huang L, Wang C, Liu S, Huang J, Liu X, Zhang J, Hu Z, Zhu Y. Advances on the Application of Wide Band-Gap Insulating Materials in Perovskite Solar Cells. Small Methods 2023; 7:e2300377. [PMID: 37254269 DOI: 10.1002/smtd.202300377] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/07/2023] [Indexed: 06/01/2023]
Abstract
In recent years, the development of perovskite solar cells (PSCs) is advancing rapidly with their recorded photoelectric conversion efficiency reaching 25.8%. However, for the commercialization of PSCs, it is also necessary to solve their stability issue. In order to improve the device performance, various additives and interface modification strategies have been proposed. While, in many cases, they can guarantee a significant increase in efficiency, but not ensure improved stability. Therefore, materials that improve the device efficiency and stability simultaneously are urgently needed. Some wide band-gap insulating materials with stable physical and chemical properties are promising alternative materials. In this review, the application of wide band-gap insulating materials in PSCs, including their preparation methods, working roles, and mechanisms are described, which will promote the commercial application of PSCs.
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Affiliation(s)
- Yi Guo
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Like Huang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
| | - Chaofeng Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Shuang Liu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Jiajia Huang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Xiaohui Liu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Jing Zhang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Ziyang Hu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China
| | - Yuejin Zhu
- School of Information Engineering, College of Science and Technology, Ningbo University, Ningbo, 315300, China
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14
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Sharif AM, Ashrafuzzaman M, Kalam A, Al-Sehemi AG, Yadav P, Tripathi B, Dubey M, Du G. Green Synthesis of Pristine and Ag-Doped TiO 2 and Investigation of Their Performance as Photoanodes in Dye-Sensitized Solar Cells. Materials (Basel) 2023; 16:5731. [PMID: 37687423 PMCID: PMC10488965 DOI: 10.3390/ma16175731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 09/10/2023]
Abstract
Dye-sensitized solar cells (DSSCs) have emerged as a potential candidate for third-generation thin film solar energy conversion systems because of their outstanding optoelectronic properties, cost-effectiveness, environmental friendliness, and easy manufacturing process. The electron transport layer is one of the most essential components in DSSCs since it plays a crucial role in the device's greatest performance. Silver ions as a dopant have drawn attention in DSSC device applications because of their stability under ambient conditions, decreased charge recombination, increased efficient charge transfer, and optical, structural, and electrochemical properties. Because of these concepts, herein, we report the synthesis of pristine TiO2 using a novel green modified solvothermal simplistic method. Additionally, the prepared semiconductor nanomaterials, Ag-doped TiO2 with percentages of 1, 2, 3, and 4%, were used as photoanodes to enhance the device's performance. The obtained nanomaterials were characterized using XRD, FTIR, FE-SEM, EDS, and UV-vis techniques. The average crystallite size for pristine TiO2 and Ag-doped TiO2 with percentages of 1, 2, 3, and 4% was found to be 13 nm by using the highest intensity peaks in the XRD spectra. The Ag-doped TiO2 nanomaterials exhibited excellent photovoltaic activity as compared to pristine TiO2. The incorporation of Ag could assist in successful charge transport and minimize the charge recombination process. The DSSCs showed a Jsc of 8.336 mA/cm2, a Voc of 698 mV, and an FF of 0.422 with a power conversion efficiency (PCE) of 2.45% at a Ag concentration of 4% under illumination of 100 mW/cm2 power with N719 dye, indicating an important improvement when compared to 2% Ag-doped (PCE of 0.97%) and pristine TiO2 (PCE of 0.62%).
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Affiliation(s)
- Abdul Mohshen Sharif
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
| | - Md. Ashrafuzzaman
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
| | - Abul Kalam
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Abdullah Godran Al-Sehemi
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Pankaj Yadav
- Department of Solar Energy, School of Technology, Pandit Deendayal Energy University, Raisan, Gandhinagar 382426, India;
| | - Brijesh Tripathi
- Department of Physics, School of Technology, Pandit Deendayal Energy University, Raisan, Gandhinagar 382426, India;
| | - Mrigendra Dubey
- Soft Materials Research Laboratory, Discipline of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore 453552, India;
| | - Gaohui Du
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China;
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15
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Shin S, Seo S, Jeong S, Sharbirin AS, Kim J, Ahn H, Park NG, Shin H. Kinetic-Controlled Crystallization of α-FAPbI 3 Inducing Preferred Crystallographic Orientation Enhances Photovoltaic Performance. Adv Sci (Weinh) 2023; 10:e2300798. [PMID: 36994651 DOI: 10.1002/advs.202300798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Indexed: 05/18/2023]
Abstract
Crystallization kinetic controls the crystallographic orientation, inducing anisotropic properties of the materials. As a result, preferential orientation with advanced optoelectronic properties can enhance the photovoltaic devices' performance. Although incorporation of additives is one of the most studied methods to stabilize the photoactive α-phase of formamidinium lead tri-iodide (α-FAPbI3 ), no studies focus on how the additives affect the crystallization kinetics. Along with the role of methylammonium chloride (MACl) as a "stabilizer" in the formation of α-FAPbI3 , herein, the additional role as a "controller" in the crystallization kinetics is pointed out. With microscopic observations, for example, electron backscatter diffraction and selected area electron diffraction, it is examined that higher concentration of MACl induces slower crystallization kinetics, resulting in larger grain size and [100] preferred orientation. Optoelectronic properties of [100] preferentially oriented grains with less non-radiative recombination, a longer lifetime of charge carriers, and lower photocurrent deviations in between each grain induce higher short-circuit current density (Jsc ) and fill factor. Resulting MACl40 mol% attains the highest power conversion efficiency (PCE) of 24.1%. The results provide observations of a direct correlation between the crystallographic orientation and device performance as it highlights the importance of crystallization kinetics resulting in desirable microstructures for device engineering.
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Affiliation(s)
- Sooeun Shin
- Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Seongrok Seo
- Department of Physics, University of Oxford, Clarendon Laboratory, Oxford, OX1 3PU, UK
| | - Seonghwa Jeong
- Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Anir S Sharbirin
- Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Jeongyong Kim
- Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Hyungju Ahn
- Pohang Accelerator Laboratory, Pohang, Kyungbuk, 37673, Republic of Korea
| | - Nam-Gyu Park
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Hyunjung Shin
- Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
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16
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Jia D, Chen J, Zhuang R, Hua Y, Zhang X. Antisolvent-Assisted In Situ Cation Exchange of Perovskite Quantum Dots for Efficient Solar Cells. Adv Mater 2023; 35:e2212160. [PMID: 36841995 DOI: 10.1002/adma.202212160] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/05/2023] [Indexed: 05/26/2023]
Abstract
Cesium-formamidinium lead iodide perovskite quantum dots (FAx Cs1- x PbI3 PQDs) show high potential for next-generation photovoltaics due to their outstanding optoelectronic properties. However, achieving composition-tunable hybrid PQDs with desirable charge transport remains a significant challenge. Herein, by leveraging an antisolvent-assisted in situ cation exchange of PQDs, homogeneous FAx Cs1- x PbI3 PQDs with controllable stoichiometries and surface ligand chemistry are realized. Meanwhile, the crystallographic stability of PQDs is substantially improved by substituting the cations of the PQDs mediated by surface vacancies. Consequently, PQD solar cell delivers an efficiency of 17.29%, the highest value among the homostructured PQD solar cells. The high photovoltaic performance is attributed to the broadened light harvesting spectra, flattened energy landscape, and rationalized energy levels of highly oriented PQD solids, leading to efficient charge carrier extraction. This work provides a feasible approach for the stoichiometry regulation of PQDs to finely tailor the optoelectronic properties and tolerance factors of PQDs toward high-performing photovoltaics.
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Affiliation(s)
- Donglin Jia
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Jingxuan Chen
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Rongshan Zhuang
- Yunnan Key Laboratory for Micro/Nano Materials and Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Yong Hua
- Yunnan Key Laboratory for Micro/Nano Materials and Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
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17
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Liu H, Han H, Xu J, Pan X, Zhao K, Liu SF, Yao J. 0D Additive for Flexible All-inorganic Perovskite Solar Cells to Go Beyond 60,000 Flexible Cycles. Adv Mater 2023:e2300302. [PMID: 37074221 DOI: 10.1002/adma.202300302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/21/2023] [Indexed: 05/03/2023]
Abstract
All-inorganic cesium lead halide flexible perovskite solar cells (f-PSCs) exhibit superior thermal stability compared to their organic-inorganic hybrid counterparts. However, their flexibility and efficiency are still below-par for practical viability. Herein, we report our design to use a zero-dimensional (0D) Cs4 Pb(IBr)6 additive to transform tensile stress into compressive stress in the perovskite film, effectively preventing expansion of cracks for significantly improved mechanical durability. It is found that not only improved flexibility is harvested, but also the cell efficiency is increased for the all-inorganic flexible three-dimensional CsPbI3- x Brx solar cells. The CsPbI2.81 Br0.19 f-PSC retains over 97% of its initial efficiency even after 60,000 flexing cycles at a curvature radius of 5 mm (R = 5 mm). Simultaneously, 0D Cs4 Pb(IBr)6 enhances the crystallinity of the CsPbI2.81 Br0.19 film and passivates the defects along the grain boundaries, effectively improving the photovoltaic performance of the all-inorganic f-PSCs. The highest power-conversion efficiency obtained is 14.25% with a short-circuit current density of 18.47 mA cm-2 , open-circuit voltage of 1.09 V, and fill factor of 70.67%. This strategy paves the way for further improvement of the mechanical durability of all-inorganic f-PSCs. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Huijing Liu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, No.2 Beinong Road, Changping District, Beijing, 102206, P. R. China
| | - Huifang Han
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, No.2 Beinong Road, Changping District, Beijing, 102206, P. R. China
| | - Jia Xu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, No.2 Beinong Road, Changping District, Beijing, 102206, P. R. China
| | - Xu Pan
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Solid-State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No.350, Shushan Lake Road, Hefei, 230031, P. R. China
| | - Kui Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University, No.620, West Chang'an Avenue, Xi'an, 710119, P. R. China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University, No.620, West Chang'an Avenue, Xi'an, 710119, P. R. China
| | - Jianxi Yao
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, No.2 Beinong Road, Changping District, Beijing, 102206, P. R. China
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18
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Zhang D, Zhang X, Guo T, Jin J, Zou J, Zhu Z, Zhou Y, Cao Q, Zhang J, Ren Z, Tai Q. Regulating the Interplay at the Buried Interface for Efficient and Stable Carbon-Based CsPbI 2Br Perovskite Solar Cells. ACS Appl Mater Interfaces 2023; 15:10897-10906. [PMID: 36786767 DOI: 10.1021/acsami.2c21792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Buried interface modification is promising for preparing high-performance perovskite solar cells (PSCs) by improving the film quality and adjusting the interfacial energy level alignment. In this work, multifunctional ethylenediaminetetraacetic acid diammonium (EAD)-modulated ZnO is employed as an effective buried interface to regulate the interplay between SnO2 and CsPbI2Br in carbon-based inorganic PSCs (C-IPSCs). The burying of EAD into the ZnO interlayer not only enhances the photoelectric properties of ZnO by passivating oxygen defects but also adjusts the energy level alignment of the buried interface. More importantly, the perovskite quality is optimized and the buried interface defects are passivated due to the formation of coordination and hydrogen bondings. Benefiting from such a robust and efficient charge transfer configuration, a maximum power conversion efficiency of 14.58% is achieved in the optimized device, which represents the highest performance reported among those of low-temperature CsPbI2Br C-IPSCs. In addition, the unencapsulated device demonstrates better long-term and thermal stability.
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Affiliation(s)
- Dan Zhang
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Xiang Zhang
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Tonghui Guo
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Junjun Jin
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Junjie Zou
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Zhenkun Zhu
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yuan Zhou
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Qiang Cao
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Jing Zhang
- Department of Microelectronic Science and Engineering, Ningbo University, Zhejiang 315211, P. R. China
| | - Zhiwei Ren
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Qidong Tai
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, P. R. China
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19
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Shen YF, Zhang H, Zhang J, Tian C, Shi Y, Qiu D, Zhang Z, Lu K, Wei Z. In Situ Absorption Characterization Guided Slot-Die-Coated High-Performance Large-Area Flexible Organic Solar Cells and Modules. Adv Mater 2023; 35:e2209030. [PMID: 36504418 DOI: 10.1002/adma.202209030] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Slot-die coating is recognized as the most compatible method for the roll-to-roll (R2R) processing of large-area flexible organic solar cells (OSCs). However, the photovoltaic performance of large-area flexible OSC lags significantly behind that of traditional spin-coating devices. In this work, two acceptors, Qx-1 and Qx-2, show quite different film-formation kinetics in the slot-die coating process. In situ absorption spectroscopy indicates that the excessive crystallinity of Qx-2 provides early phase separation and early aggregation, resulting in oversized crystal domains. Consequently, the PM6:Qx-1-based 1 cm2 flexible device exhibits an excellent power conversion efficiency (PCE) of 13.70%, which is the best performance among the slot-die-coated flexible devices; in contrast, the PM6:Qx-2 blend shows a pretty poor efficiency, which is lower than 1%. Moreover, the 30 cm2 modules based on PM6:Qx-1, containing six 5 cm2 sub-cells, exhibit a PCE of 12.20%. After being stored in a glove box for over 6000 h, the PCE remains at 103% of its initial values, indicating excellent shelf stability. Therefore, these results show a promising future strategy for the upscaling fabrication of flexible large-area OSCs.
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Affiliation(s)
- Yi-Fan Shen
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Sino-Danish Center for Education and Research, Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hao Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jianqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Chenyang Tian
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yanan Shi
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Dingding Qiu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- Sino-Danish Center for Education and Research, Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ziqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kun Lu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Zhixiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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20
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Ding S, Hao M, Fu C, Lin T, Baktash A, Chen P, He D, Zhang C, Chen W, Whittaker AK, Bai Y, Wang L. In Situ Bonding Regulation of Surface Ligands for Efficient and Stable FAPbI 3 Quantum Dot Solar Cells. Adv Sci (Weinh) 2022; 9:e2204476. [PMID: 36316248 PMCID: PMC9762318 DOI: 10.1002/advs.202204476] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Quantum dots (QDs) of formamidinium lead triiodide (FAPbI3 ) perovskite hold great potential, outperforming their inorganic counterparts in terms of phase stability and carrier lifetime, for high-performance solar cells. However, the highly dynamic nature of FAPbI3 QDs, which mainly originates from the proton exchange between oleic acid and oleylamine (OAm) surface ligands, is a key hurdle that impedes the fabrication of high-efficiency solar cells. To tackle such an issue, here, protonated-OAm in situ to strengthen the ligand binding at the surface of FAPbI3 QDs, which can effectively suppress the defect formation during QD synthesis and purification processes is selectively introduced. In addition, by forming a halide-rich surface environment, the ligand density in a broader range for FAPbI3 QDs without compromising their structural integrity, which significantly improves their optoelectronic properties can be modulated. As a result, the power conversion efficiency of FAPbI3 QD solar cells (QDSCs) is enhanced from 7.4% to 13.8%, a record for FAPbI3 QDSCs. Furthermore, the suppressed proton exchange and reduced surface defects in FAPbI3 QDs also enhance the stability of QDSCs, which retain 80% of the initial efficiency upon exposure to ambient air for 3000 hours.
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Affiliation(s)
- Shanshan Ding
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Mengmeng Hao
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Tongen Lin
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Ardeshir Baktash
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Peng Chen
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Dongxu He
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Chengxi Zhang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Weijian Chen
- Australian Centre for Advanced PhotovoltaicsSchool of Photovoltaics and Renewable Energy EngineeringUniversity of New South WalesSydneyNSW2052Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Yang Bai
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
- Shenzhen Key Laboratory of Energy Materials for Carbon NeutralityShenzhen518055P. R. China
| | - Lianzhou Wang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
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21
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Kottayi R, Veerappan I, Sittaramane R. Near-infrared photoactive Ag-Zn-Ga-S-Se quantum dots for high-performance quantum dot-sensitized solar cells. Beilstein J Nanotechnol 2022; 13:1337-1344. [PMID: 36474927 PMCID: PMC9679599 DOI: 10.3762/bjnano.13.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/27/2022] [Indexed: 06/17/2023]
Abstract
The high light-harvesting ability of quantum dots (QDs) plays an eminent role in the performance of solar cells. In this study, we synthesized Ag-Zn-Ga-S-Se-based alloyed QDs by colloidal hot injection and characterized them. The X-ray photoelectron spectrum analysis confirms the +1, +2, +3, -2, and -2 oxidation states of, respectively, Ag, Zn, Ga, S, and Se in the QDs, and the energy-dispersive X-ray spectrum analysis confirms the 1:1:1:1.5:1.5 stoichiometric ratio of, respectively, Ag, Zn, Ga, S, and Se. These two results indicate the formation of I-II-III-VI3-type alloyed crystals (AgZnGaS1.5Se1.5 nanocrystals). TEM image analysis reveals the QD nature of the synthesized Ag-Zn-Ga-S-Se nanocrystals. The X-ray diffraction pattern confirms the hexagonal structure. Due to the near-infrared light absorption capability, the synthesized QDs were used as the sensitizer to fabricate QDSCs. The fabricated QDSCs were characterized by using electrochemical impedance spectroscopy and photovoltaic performance studies. The fabricated QDSC have superior electrochemical activity with a photoconversion efficiency of 4.91%.
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Affiliation(s)
- Roopakala Kottayi
- Department of Physics, Kanchi Mamunivar Govt. Institute for PG Studies and Research, Puducherry-605008, India
| | - Ilangovan Veerappan
- Department of Physics, Kanchi Mamunivar Govt. Institute for PG Studies and Research, Puducherry-605008, India
| | - Ramadasse Sittaramane
- Department of Physics, Kanchi Mamunivar Govt. Institute for PG Studies and Research, Puducherry-605008, India
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22
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Bi J, Chang J, Lei M, Zhang W, Meng F, Wang G. Thiourea-Assisted Facile Fabrication of High-Quality CsPbBr 3 Perovskite Films for High-Performance Solar Cells. ACS Appl Mater Interfaces 2022; 14:48888-48896. [PMID: 36269617 DOI: 10.1021/acsami.2c13658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Inorganic CsPbBr3 perovskite solar cells have attracted widespread attention recently because of their decent efficiency and good ambient stability. Nevertheless, the fabrication of high-quality CsPbBr3 perovskite via the conventional solution-processing strategy still faces great challenges because the solubility of CsBr in the conventional solvent is poor. Here, we develop a facile thiourea-assisted two-step spin-coating process to fabricate a CsPbBr3 perovskite film with high phase purity and crystallinity and enlarged crystal grains. Thiourea is introduced into the PbBr2 layer during the first-step spin-coating process, which promotes the wettability of the PbBr2 layer and produces the space for growing large perovskite grains. The green high-concentration CsBr/H2O solution is adopted at the second-step spin-coating process, enabling enough CsBr to be deposited by a facile one-step process. By optimizing the content of thiourea, a compact CsPbBr3 perovskite film with a smooth surface, large grains, and high phase purity and crystallinity is formed. Consequently, the fabricated perovskite solar cell with the architecture of FTO/TiO2/CsPbBr3 film/carbon exhibits a superior performance with a high efficiency of 9.11%. In addition, the unencapsulated device preserves over 90% of its initial efficiency after storage at ambient conditions for 45 days.
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Affiliation(s)
- Jiayu Bi
- School of Chemistry and Materials, Bohai University, Jinzhou121003, China
| | - Jiarun Chang
- School of Chemistry and Materials, Bohai University, Jinzhou121003, China
| | - Miao Lei
- School of Chemistry and Materials, Bohai University, Jinzhou121003, China
| | - Wei Zhang
- School of Chemistry and Materials, Bohai University, Jinzhou121003, China
| | - Fanning Meng
- School of Chemistry and Materials, Bohai University, Jinzhou121003, China
| | - Guiqiang Wang
- School of Chemistry and Materials, Bohai University, Jinzhou121003, China
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23
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Song C, Huang X, Zhan T, Ding L, Li Y, Xue X, Lin X, Peng H, Cai P, Duan C, Chen J. Annealing-Insensitive, Alcohol-Processed MoO x Hole Transport Layer for Universally Enabling High-Performance Conventional and Inverted Organic Solar Cells. ACS Appl Mater Interfaces 2022; 14:40851-40861. [PMID: 36044804 DOI: 10.1021/acsami.2c09413] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
At present, most solution-processed molybdenum oxide (s-MoOx) hole transport layers (HTLs) are still mainly used in conventional organic solar cells (OSCs) but unsuitable for inverted OSCs. Herein, we demonstrate for the first time an annealing-insensitive, alcohol-processed MoOx HTL that can universally enable high-performance conventional and inverted OSCs. The s-MoOx HTL is spin-coated from the MoOx nanoparticle dispersion in alcohol, where the MoOx nanoparticles are synthesized by simple nonaqueous pyrolysis conversion of MoO2(acac)2. The MoOx nanoparticles possess uniform and very small sizes of less than 5 nm and can be well dispersed in alcohol, so the s-MoOx HTLs on ITO and active layer both show an overall uniform and smooth surface, suitable for conventional and inverted OSCs. In addition, the s-MoOx HTL possesses decent optical transmittance and appropriate work function. Utilizing the s-MoOx HTL annealed between room temperature and 110 °C and PM6:Y6 active layer, the conventional OSCs show an excellent power conversion efficiency (PCE) of 16.64-17.09% and the inverted OSCs also show an excellent PCE of 15.74-16.28%, which indicate that the s-MoOx HTL could be annealing-insensitive and universal for conventional and inverted OSCs. Moreover, conventional and inverted OSCs with the s-MoOx HTLs annealed at 80 °C both exhibit optimal PCEs of 17.09 and 16.28%, respectively, which are separately superior than that of the PEDOT:PSS-based conventional OSCs (16.94%) and the thermally evaporated MoO3 (e-MoO3)-based inverted OSCs (16.03%). Under light soaking and storage aging in air, the unencapsulated inverted OSCs based on the s-MoOx HTL show similarly excellent ambient stability compared to the e-MoOx-based devices. In addition, the s-MoOx HTL also shows a universal function in conventional and inverted OSCs with PBDB-T:ITIC and PM6:L8-BO active layers. Notably, the s-MoOx-based conventional and inverted OSCs with the PM6:L8-BO active layer exhibit very excellent PCEs of 18.21 and 17.12%, respectively, which are slightly higher than those of the corresponding PEDOT:PSS-based device (18.17%) and e-MoO3-based device (17.00%). The annealing-insensitive, alcohol-processed MoOx HTL may be very promising for flexible and large-scale processing conventional/inverted OSCs.
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Affiliation(s)
- Can Song
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Xiaofang Huang
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Tao Zhan
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Ling Ding
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Yang Li
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, P. R. China
- Poly Optoelectronics Tech. Ltd., Jiangmen 529020, P. R. China
| | - Xiaogang Xue
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Xiangcheng Lin
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Hongliang Peng
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Ping Cai
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Chunhui Duan
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P. R. China
| | - Junwu Chen
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P. R. China
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24
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Zhang CC, Yuan S, Lou YH, Okada H, Wang ZK. Physical Fields Manipulation for High-Performance Perovskite Photovoltaics. Small 2022; 18:e2107556. [PMID: 35043565 DOI: 10.1002/smll.202107556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Indexed: 06/14/2023]
Abstract
With the efforts of researchers from all over the world, metal halide perovskite solar cells (PSCs) have been booming rapidly in recent years. Generally, perovskite films are sensitive to surrounding conditions and will be changed under the action of physical fields, resulting in lattice distortion, degradation, ion migration, and so on. In this review, the progress of physical fields manipulation in PSCs, including the electric field, magnetic field, light field, stress field, and thermal field are reviewed. On this basis, the influences of these fields on PSCs are summarized and prospected. Finally, challenges and prospective research directions on how to make better use of external-fields while minimizing the unnecessary and disruptive impacts on commercial PSCs with high-efficiency and steady output are proposed.
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Affiliation(s)
- Cong-Cong Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, China
- Graduate School of Science & Engineering, University of Toyama, Toyama, 930-8555, Japan
| | - Shuai Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yan-Hui Lou
- School of Energy, Soochow Institute for Energy and Materials Innovations, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, China
| | - Hiroyuki Okada
- Graduate School of Science & Engineering, University of Toyama, Toyama, 930-8555, Japan
| | - Zhao-Kui Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, China
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25
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Hu Y, Yang Z, Cui X, Zeng P, Li F, Liu X, Feng G, Liu M. Construction of Charge Transport Channels at the NiO x/Perovskite Interface through Moderate Dipoles toward Highly Efficient Inverted Solar Cells. ACS Appl Mater Interfaces 2022; 14:13431-13439. [PMID: 35262337 DOI: 10.1021/acsami.2c01625] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
NiOx-based perovskite solar cells (PSCs) have attracted much attention because of their low fabrication temperature, suppressed hysteresis, and superior stability. However, the poor interfacial contacts between NiOx and perovskite layers always limit the progress of PSCs. Here, we applied 2-thiophenemethylamine (TPMA) as charge transport channels at the interface between NiOx and perovskite layers. The introduction of TPMA provides moderate dipole moment pointing to the perovskite side and effectively promotes the charge transportation. Meanwhile, TPMA anchorage also passivates the defect states at the surfaces of both NiOx and MAPbI3, which compensates the voltage loss due to the change in NiOx work function induced by the dipole. Thus, the device performance has been significantly enhanced in both electrochemical properties and power conversion efficiency. Our work has demonstrated a new way of improving current and voltage in the NiOx-based PSCs simultaneously through a moderate interfacial dipole moment toward highly efficient PSCs.
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Affiliation(s)
- Yuchao Hu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Zheqi Yang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Xiang Cui
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Peng Zeng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Faming Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Xiaochun Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Guanqun Feng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Mingzhen Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
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26
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Zheng H, Dong X, Wu W, Liu G, Pan X. Multifunctional Heterocyclic-Based Spacer Cation for Efficient and Stable 2D/3D Perovskite Solar Cells. ACS Appl Mater Interfaces 2022; 14:9183-9191. [PMID: 35147021 DOI: 10.1021/acsami.1c23991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional/three-dimensional (2D/3D) Ruddlesden-Popper perovskite materials have shown the enormous potential to achieve both efficient and stable photovoltaic devices for commercial applications. Unfortunately, the single function of spacer cations limits their further improvements in efficiency to reach values as high as those of 3D perovskites. Herein, we developed a new-type multifunctional heterocyclic-based spacer cation of 2-(methylthio)-4,5-dihydro-1H-imidazole (MTIm+) to achieve a synchronous improvement of efficiency and stability for 2D/3D perovskite solar cells (PSCs). Owing to the presence of special chemical groups (imidazole and methylthio), strong interactions have been found between MTIm+ and the 3D perovskite component, leading to an excellent passivation effect. More important, at the initial stage of crystallization, uniform nucleation distribution would be generated around the spacer cation, which is helpful for improved crystallinity and reduced growth defects. The smaller layer space compared to that of cations based on aromatic hydrocarbons caused effective carrier transfer between inorganic layers in 2D/3D perovskites. As a result, the 2D/3D (n = 30) PSCs based on MTIm exhibit a champion PCE up to 21.25% with a high Voc of 1.14 V. Besides, the 2D/3D perovskite devices have realized dramatically enhanced humidity and thermal stability, maintaining 94% of the starting PCE enduring aging at about 50% RH for 2880 h and at 85 °C for 360 h, respectively. We believe that it would provide a significant strategy to further promote the photovoltaic performances and the long-term stability of 2D/3D perovskite devices toward future practical applications.
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Affiliation(s)
- Haiying Zheng
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Xinhe Dong
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Weiwei Wu
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Guozhen Liu
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Xu Pan
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
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27
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Sun Y, Yang S, Pang Z, Quan Y, Song R, Chen Y, Qi W, Gao Y, Wang F, Zhang X, Sun Y, Yang J, Yang L, Rosei F. Preferred Film Orientation to Achieve Stable and Efficient Sn-Pb Binary Perovskite Solar Cells. ACS Appl Mater Interfaces 2021; 13:10822-10836. [PMID: 33629583 DOI: 10.1021/acsami.0c19014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The preferred orientation of crystalline films in hybrid perovskite materials is known to influence the performance of perovskite solar cells (PSCs). Although the preferred growth along the (112) directions has been reported to promote charge transport within the Pb-based polycrystalline perovskite films, the preferred orientation growth of this facet is still difficult to be achieved due to the higher formation energy compared with the (110) plane. Herein, Sn-Pb binary perovskite films with a well-controlled orientation along the (224) plane were achieved by introducing a simple ultrasonic treatment (UST) into the additive engineering fabricated method. UST is used to process the perovskite precursor solutions of tartaric acid (TA) modified Sn-Pb binary polycrystalline perovskite films to regulate the interactions between PbI2/SnI2 and TA in the intermediate phases. Meanwhile, TA-modulated MA0.9Cs0.1Pb0.75Sn0.25I3-based perovskite films with a preferred orientation of (224) crystal plane were obtained by precisely controlling the UST time to 15 min. The highest power conversion efficiency (PCE) of 15.59% with less hysteresis and improved stability was achieved, while realizing 8.64 and 25.32% enhancements of PCE compared with that of TA-based and control counterparts with (110) preferred orientation, respectively. Our work provides a promising route to obtain preferred orientation growth of polycrystalline perovskite films. In particular, we have shown that this approach improves the performance of Sn-Pb binary PSCs, while such methodology is quite flexible and could also be applied to other low-/non-toxic PSCs.
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Affiliation(s)
- Yansen Sun
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Shuo Yang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R. China
| | - Zhenyu Pang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yingnan Quan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
| | - Rongfei Song
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, P.R. China
| | - Yu Chen
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Weiheng Qi
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yanbo Gao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
| | - Fengyou Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, P.R. China
| | - Xinyuan Zhang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yunfei Sun
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, P.R. China
| | - Federico Rosei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, P.R. China
- Centre Énergie, Materiaux et Télécommunications, Institut National de la Recherche Scientifique, 1650, Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
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Kang X, Li X, Liu H, Liang Z, Chen W, Zheng N, Qiao S, Yang R. Aggregation Tuning with Heavily Fluorinated Donor Polymer for Efficient Organic Solar Cells. ACS Appl Mater Interfaces 2020; 12:49849-49856. [PMID: 33103902 DOI: 10.1021/acsami.0c10658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The fluorination/sulfofication-induced effect in the photovoltaic polymer solar cells (PSCs) needs to be paid much attention. In this work, a new donor polymer PBDB-PS2F was synthesized by heavily fluorinated and decorated S atom on the side chain of benzo[1,2-b:4,5-b']dithiophene (BDT) unit to explore the internal combined effect of F&S on the photoelectric performance. It was found that the heavy fluorination on the side chain could make PBDB-PS2F achieve a low highest occupied molecule orbital (HOMO) energy level of -5.72 eV and weaken the torsion of the main chain and effectively increase the intermolecular π-π* transition. Encouragingly, compared with the counterpart polymer PBDB-PS without the fluorination, PBDB-PS2F exhibited a much intense aggregation at room temperature but showed a tendency of reduced aggregation at high temperatures. This feature gives excellent solution processability and uniform morphology in the active layer of a PBDB-PS2F-based device, enabling an outstanding photovoltaic performance with the power conversion efficiency (PCE) of 13.56% (VOC = 0.90 V, JSC = 21.53 mA/cm2, FF = 69.68%). Compared with that of the counterpart polymer PBDB-PS with no heavy fluorination, the VOC of PBDB-PS2F increased by 15.4% and the PCE increased by 30.9%. Thus, the heavy-fluorination-induced effect to construct photovoltaic polymers could be used to improve the performance of polymer solar cells.
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Affiliation(s)
- Xiao Kang
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
- College of Textiles & Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Xiaoming Li
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
- College of Textiles & Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Haining Liu
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Zezhou Liang
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Weichao Chen
- College of Textiles & Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Nan Zheng
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Shanlin Qiao
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Renqiang Yang
- Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education), School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
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Gao L, Li X, Liu Y, Fang J, Huang S, Spanopoulos I, Li X, Wang Y, Chen L, Yang G, Kanatzidis MG. Incorporated Guanidinium Expands the CH 3NH 3PbI 3 Lattice and Enhances Photovoltaic Performance. ACS Appl Mater Interfaces 2020; 12:43885-43891. [PMID: 32869968 DOI: 10.1021/acsami.0c14925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Guanidinium (GA) has been widely used as an additive in solar cells for enhanced performance. However, the size of the guanidinium cation is too large to be incorporated in the cage of the perovskite structure. Instead, GA forms a variety of structures with lead iodide, where its role in the perovskite crystal as well as solar cell devices is unclear. In this study, we demonstrate that GA can be incorporated into the structure of MAPbI3 as (GA)x(MA)1-xPbI3. From single-crystal X-ray crystallographic refinement, we observe lattice expansion and Pb-I bond elongation with GA incorporation similar to exerting "negative pressure", which weakens orbital overlap and widens the band gap from 1.49 to 1.53 eV. We find that the highest percentage of GA that can be incorporated into the 3D MAPbI3 structure is 5.26%, as confirmed by nuclear magnetic resonance. The alloyed (GA)x(MA)1-xPbI3 exhibits increased PL lifetimes from 154.4 to 266.3 ns after GA incorporation while the Voc of (GA)x(MA)1-xPbI3 devices enlarges from 1.05 to 1.11 V. High efficiencies in solar cell devices up to 20.38% with a Jsc of 23.55 mA cm-2, Voc of 1.11 V, and FF of 0.78 have been achieved, with stable photovoltaic performance for 900 h in air.
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Affiliation(s)
- Lili Gao
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiaotong Li
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Yan Liu
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
| | - Junjie Fang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Sheng Huang
- Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science & Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian District, Beijing 100081, China
| | - Ioannis Spanopoulos
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiaolei Li
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
| | - Yao Wang
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
| | - Lin Chen
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
| | - Guanjun Yang
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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Manafi P, Nazockdast H, Karimi M, Sadighi M, Magagnin L. Microstructural Development and Rheological Study of a Nanocomposite Gel Polymer Electrolyte Based on Functionalized Graphene for Dye-Sensitized Solar Cells. Polymers (Basel) 2020; 12:polym12071443. [PMID: 32605131 PMCID: PMC7408189 DOI: 10.3390/polym12071443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/21/2020] [Accepted: 06/25/2020] [Indexed: 12/04/2022] Open
Abstract
For a liquid electrolyte-based dye-sensitized solar cell (DSSC), long-term device instability is known to negatively affect the ionic conductivity and cell performance. These issues can be resolved by using the so called quasi-solid-state electrolytes. Despite the enhanced ionic conductivity of graphene nanoplatelets (GNPs), their inherent tendency toward aggregation has limited their application in quasi-solid-state electrolytes. In the present study, the GNPs were chemically modified by polyethylene glycol (PEG) through amidation reaction to obtain a dispersible nanostructure in a poly(vinylidene fluoride-co-hexafluoro propylene) copolymer and polyethylene oxide (PVDF–HFP/PEO) polymer-blended gel electrolyte. Maximum ionic conductivity (4.11 × 10−3 S cm−1) was obtained with the optimal nanocomposite gel polymer electrolyte (GPE) containing 0.75 wt% functionalized graphene nanoplatelets (FGNPs), corresponding to a power conversion efficiency of 5.45%, which was 1.42% and 0.67% higher than those of the nanoparticle-free and optimized-GPE (containing 1 wt% GNP) DSSCs, respectively. Incorporating an optimum dosage of FGNP, a homogenous particle network was fabricated that could effectively mobilize the redox-active species in the amorphous region of the matrix. Surface morphology assessments were further performed through scanning electron microscopy (SEM). The results of rheological measurements revealed the plasticizing effect of the ionic liquid (IL), offering a proper insight into the polymer–particle interactions within the polymeric nanocomposite. Based on differential scanning calorimetry (DSC) investigations, the decrease in the glass transition temperature (and the resultant increase in flexibility) highlighted the influence of IL and polymer–nanoparticle interactions. The obtained results shed light on the effectiveness of the FGNPs for the DSSCs.
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Affiliation(s)
- Pedram Manafi
- Mahshahr Campus, Amirkabir University of Technology, Mahshahr P.O. Box 63517-13178, Iran;
| | - Hossein Nazockdast
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran P.O. Box 15875-4413, Iran
- Correspondence: (H.N.); (L.M.)
| | - Mohammad Karimi
- School of Materials and Advanced processes Engineering, Department of Textile Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran P.O. Box 15875-4413, Iran;
| | - Mojtaba Sadighi
- Department of Mechanical Engineering, Amirkabir University of Technology, Tehran P.O. Box 15875-4413, Iran;
| | - Luca Magagnin
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta,” Politecnico di Milano, 20131 Milano, Italy
- Correspondence: (H.N.); (L.M.)
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Li X, Huang G, Chen W, Jiang H, Qiao S, Yang R. Size Effect of Two-Dimensional Conjugated Space in Photovoltaic Polymers' Side Chain: Balancing Phase Separation and Charge Transport. ACS Appl Mater Interfaces 2020; 12:16670-16678. [PMID: 32126757 DOI: 10.1021/acsami.9b23499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Various two-dimensional (2D) side-chain-substituted benzo(1,2-b:4,5-b')dithiophene (BDT) blocks have been used to construct donor polymers, whereas the size effect of the side chains on the photovoltaic performance was overlooked in the past few years. In this work, three size-varied conjugated spaces (benzene, naphthalene, and biphenyl) were introduced into the corresponding polymers PBDB-Ph, PBDB-Na, and PBDB-BPh. This space engineering has a significant impact on the extent of phase separation in the active layer which blended with the polymer and the acceptor ITCPTC and preserved the desired morphology. The varied space size in the side chains lead to distinct balance mobility ratios of holes to electrons (benzene, 0.21; naphthalene, 0.75; and biphenyl, 0.57). Finally, PBDB-Na-based polymer solar cells (PSCs) delivered the highest power conversion efficiency of 12.52% when compared to the PSC performances of PBDB-Ph (8.48%) and PBDB-BPh (11.35%). The method in tailoring the side chain structures could fabricate a balance between phase separation and charge transport, providing an enlightenment for the development of photovoltaic devices.
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Affiliation(s)
- Xiaoming Li
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China
| | - Gongyue Huang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China
| | - Weichao Chen
- College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao 266071, People's Republic of China
| | - Huanxiang Jiang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China
| | - Shanlin Qiao
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
| | - Renqiang Yang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China
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Wang D, Li W, Du Z, Li G, Sun W, Wu J, Lan Z. Highly Efficient CsPbBr 3 Planar Perovskite Solar Cells via Additive Engineering with NH 4SCN. ACS Appl Mater Interfaces 2020; 12:10579-10587. [PMID: 32048823 DOI: 10.1021/acsami.9b23384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Improving stability is a major aspect for commercial application of perovskite solar cells (PSCs). The all-inorganic CsPbBr3 perovskite material has been proven to have excellent stability. However, the CsPbBr3 film has a small range of light absorption and serious charge recombination at the interface or inside the device, so the power conversion efficiency is still lower than that of the organic-inorganic hybrid one. Here, we successfully fabricate high-quality CsPbBr3 films via additive engineering with NH4SCN. By incorporating NH4+ and pseudo-halide ion SCN- into the precursor solution, a smooth and dense CsPbBr3 film with good crystallinity and low trap state density can be obtained. At the same time, the results of a series of photoluminescence and electrochemical analyses including electrical impedance spectroscopy, space-charge limited current method, Mott-Schottky data, and so on reveal that the NH4SCN additive can greatly reduce the trap state density of the CsPbBr3 film and also effectively inhibit interface recombination and promote charge transport in the CsPbBr3 planar PSC. Finally, the CsPbBr3 planar PSC prepared with a molar ratio of 1.5% NH4SCN achieves a champion efficiency of 8.47%, higher than that of the pure one (7.12%).
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Affiliation(s)
- Deng Wang
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
| | - Wenjing Li
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
| | - Zhenbo Du
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
| | - Guodong Li
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
| | - Weihai Sun
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
| | - Jihuai Wu
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
| | - Zhang Lan
- Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education; Fujian Key Laboratory of Photoelectric Functional Materials; Fujian Engineering Research Center of Green Functional Materials; Institute of Materials Physical Chemistry, Huaqiao University, Xiamen 361021, P. R. China
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, P. R. China
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Chen L, Zeng M, Weng C, Tan S, Shen P. Nonhalogenated-Solvent-Processed Efficient Polymer Solar Cells Enabled by Medium-Band-Gap A-π-D-π-A Small-Molecule Acceptors Based on a 6,12-Dihydro-diindolo[1,2- b:10,20- e]pyrazine Unit. ACS Appl Mater Interfaces 2019; 11:48134-48146. [PMID: 31823611 DOI: 10.1021/acsami.9b17185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this contribution, a series of A-π-D-π-A small molecules (SMs), IPY-T-IC, IPY-T-ICCl, and IPY-T-ICF, containing the central donor unit (D) of 6,12-dihydro-diindolo[1,2-b:10,20-e]pyrazine (IPY), the π-conjugated bridge of thiophene, and the end-accepting group (A) of 3-(dic yanomethylidene)indol-1-one, 5,6-dichloro-3-(dicyanomethylidene)indol-1-one, or 5,6-difluoro-3-(dicyanomethylene)indol-1-one, were developed, characterized, and employed as the acceptor materials for polymer solar cells (PSCs). Influences of the different end-accepting groups on thermal properties, spectral absorption, energy levels, photovoltaic performance, and film morphology of these small-molecule acceptors (SMAs) were investigated in detail. These SMAs exhibit an excellent thermal stability and strong crystallization. The absorption spectra of these SMs mainly locate the wavelength between 400 and 700 nm, associated with the optical band gaps in the range of 1.75-1.90 eV. Compared with nonhalogenated IPY-T-IC, the halogenated SMAs IPY-T-ICCl and IPY-T-ICF present better absorption abilities, wider absorption region, and downshifted highest occupied molecular orbital (HOMO)/lowest unoccupied molecular orbital (LUMO) levels. With regard to the complementary spectral absorption and matched HOMO/LUMO levels, PTB7-Th as a low-band gap polymer was chosen to be an electron donor to pair with these SMAs for fabricating bulk-heterojuntion PSCs. Under optimized conditions, among these SMAs, the PTB7-Th:IPY-T-IC-based PSC processed from a halogenated solvent system (chlorobenzene + 1-chloronaphthalene) delivers the best power conversion efficiency (PCE) of 7.32%, mainly because of more complementary spectral absorption, upper-lying LUMO level, higher and balanced carrier mobility, more efficiently suppressed trap-assisted recombination, better charge collection property, and blend morphology. Encouragingly, an improved PCE of up to 7.68% is achieved when the IPY-T-IC-based solar cell was processed from a nonhalogenated solvent system (o-xylene + 2-methylnaphthalene). In view of the large band gap of these IPY-based SMAs, the PCE of over 7.5% is notable and attractive for the related community. Our study argues that the IPY moiety is a potential electron-donating building moiety to develop medium-band-gap high-performance A-π-D-π-A SMAs for nonhalogenated-solvent-processed photovoltaic devices.
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Affiliation(s)
- Li Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan 411105 , China
| | - Min Zeng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan 411105 , China
| | - Chao Weng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan 411105 , China
| | - Songting Tan
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan 411105 , China
| | - Ping Shen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan 411105 , China
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Kang X, Zhou D, Wang Q, Zhu D, Bao X, Yuan X, Liu F, Li Y, Qiao S, Yang R. Rational Design of Low Band Gap Polymers for Efficient Solar Cells with High Open-Circuit Voltage: The Profound Effect of Me and Cl Substituents with a Similar van Der Waals Radius. ACS Appl Mater Interfaces 2019; 11:48155-48161. [PMID: 31777242 DOI: 10.1021/acsami.9b18278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Generally, low band gap material-based photovoltaic devices have reduced open circuit voltage (VOC), and realizing the trade-off between the low band gap (Eg < 1.6 eV) and high VOC (>0.9 V) could be critical to give efficient polymer solar cells, especially for high-performance semitransparent PSCs and tandem solar cells. Although lots of efforts have been made to address the issue, most results have not been gratifying. In this work, the polymer PTBTz-Cl based on the chlorination method and efficient thiazole-induced strategy was designed and synthesized, aiming at the deep HOMO energy level, and the enhanced backbone planarity caused by the weak noncovalent Cl···S interaction. In addition, the methyl-substituted polymer PTBTz-Me was constructed as the reference due to the similar van der Waals radius of the side chain (CH3: 0.20 nm vs Cl: 0.18 nm). Encouragingly, in comparison with that of PTBTz-2, the newly synthesized polymers exhibit the red-shifted absorption spectra ranging from 300 to 770 nm, with an obviously reduced Eg of ∼1.6 eV. However, the function of Cl and Me substituents is different. Compared to the polymer PTBTz-Me, PTBTz-Cl exhibits a lower HOMO value, stronger crystallinity, and more compact intramolecular interactions. Consequently, the polymer PTBTz-Cl exhibits excellent photovoltaic performance with a notable VOC of 0.94 V and a power conversion efficiency of 10.35%, which is ∼11% higher than the 9.12% efficiency based on PTBTz-Me, and is also one of the highest values among polymer/fullerene solar cells. Moreover, a smaller photo energy loss (Eloss) of 0.64 eV is achieved, which is rare among the current high-performance polymer systems.
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Affiliation(s)
- Xiao Kang
- College of Chemistry and Pharmaceutical Engineering , Hebei University of Science and Technology , Shijiazhuang 050018 , China
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
| | - Di Zhou
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Qian Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
| | - Dangqiang Zhu
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
| | - Xichang Bao
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
- Center for Ocean Mega-Science , Chinese Academy of Sciences , Qingdao 266071 , China
| | - Xiyue Yuan
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
| | - Fushuai Liu
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
| | - Yonghai Li
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
| | - Shanlin Qiao
- College of Chemistry and Pharmaceutical Engineering , Hebei University of Science and Technology , Shijiazhuang 050018 , China
| | - Renqiang Yang
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , China
- Center for Ocean Mega-Science , Chinese Academy of Sciences , Qingdao 266071 , China
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Wang K, Subhani WS, Wang Y, Zuo X, Wang H, Duan L, Liu SF. Metal Cations in Efficient Perovskite Solar Cells: Progress and Perspective. Adv Mater 2019; 31:e1902037. [PMID: 31304651 DOI: 10.1002/adma.201902037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/29/2019] [Indexed: 06/10/2023]
Abstract
Metal halide perovskite solar cells (PVSCs) have revolutionized photovoltaics since the first prototype in 2009, and up to now the highest efficiency has soared to 24.2%, which is on par with commercial thin film cells and not far from monocrystalline silicon solar cells. Optimizing device performance and improving stability have always been the research highlight of PVSCs. Metal cations are introduced into perovskites to further optimize the quality, and this strategy is showing a vigorous development trend. Here, the progress of research into metal cations for PVSCs is discussed by focusing on the position of the cations in perovskites, the modulation of the film quality, and the influence on the photovoltaic performance. Metal cations are considered in the order of alkali cations, alkaline earth cations, then metal cations in the ds and d regions, and ultimately trivalent cations (p- and f-block metal cations) according to the periodic table of elements. Finally, this work is summarized and some relevant issues are discussed.
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Affiliation(s)
- Kai Wang
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Waqas Siddique Subhani
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Yulong Wang
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Xiaokun Zuo
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Hui Wang
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Lianjie Duan
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Shengzhong Frank Liu
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, Shaanxi, China
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Du YE, Niu X, Li W, An J, Liu Y, Chen Y, Wang P, Yang X, Feng Q. Microwave-Assisted Synthesis of High-Energy Faceted TiO 2 Nanocrystals Derived from Exfoliated Porous Metatitanic Acid Nanosheets with Improved Photocatalytic and Photovoltaic Performance. Materials (Basel) 2019; 12:E3614. [PMID: 31689889 DOI: 10.3390/ma12213614] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/26/2019] [Accepted: 10/30/2019] [Indexed: 11/16/2022]
Abstract
A facile one-pot microwave-assisted hydrothermal synthesis of rutile TiO2 quadrangular prisms with dominant {110} facets, anatase TiO2 nanorods and square nanoprisms with co-exposed {101}/[111] facets, anatase TiO2 nanorhombuses with co-exposed {101}/{010} facets, and anatase TiO2 nanospindles with dominant {010} facets were reported through the use of exfoliated porous metatitanic acid nanosheets as a precursor. The nanostructures and the formation reaction mechanism of the obtained rutile and anatase TiO2 nanocrystals from the delaminated nanosheets were investigated. The transformation from the exfoliated metatitanic nanosheets with distorted hexagonal cavities to TiO2 nanocrystals involved a dissolution reaction of the nanosheets, nucleation of the primary [TiO6]8− monomers, and the growth of rutile-type and anatase-type TiO2 nuclei during the microwave-assisted hydrothermal reaction. In addition, the photocatalytic activities of the as-prepared anatase nanocrystals were evaluated through the photocatalytic degradation of typical carcinogenic and mutagenic methyl orange (MO) under UV-light irradiation at a normal temperature and pressure. Furthermore, the dye-sensitized solar cell (DSSC) performance of the synthesized anatase TiO2 nanocrystals with various morphologies and crystal facets was also characterized. The {101}/[111]-faceted pH2.5-T175 nanocrystal showed the highest photocatalytic and photovoltaic performance compared to the other TiO2 samples, which could be attributed mainly to its minimum particle size and maximum specific surface area.
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Zhang C, Liu Y, Tu J, Ming S, Xu X, Bo Z. Fluoro-Modulated Molecular Geometry in Diketopyrrolopyrrole-Based Low-Bandgap Copolymers for Tuning the Photovoltaic Performance. Front Chem 2019; 7:333. [PMID: 31157206 PMCID: PMC6530256 DOI: 10.3389/fchem.2019.00333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/24/2019] [Indexed: 11/13/2022] Open
Abstract
Fluorination of conjugated polymers is an effective strategy to tune the energy levels for obtaining high power conversion efficiency (PCE) in organic solar cells. In this work, we have developed fluoro-modulated molecular geometries in diketopyrrolopyrrole based low-bandgap copolymers. In these polymers, planar conformation can be locked by intramolecular non-covalent interaction (intramolecular supramolecular interaction) between the sulfur atoms and the introduced F atoms (F···S interaction). By varying the fluorinated moieties, such a planarity can be disturbed and the molecular geometry is tuned. As a result, the polymer' properties can be modulated, including the ultraviolet-visible absorption spectrum to become broaden, charge mobility to be enhanced, open-circuit voltage (V oc) and short-circuited current (J sc) to be elevated, and thus photovoltaic performance to be improved. The photovoltaic device based on PCFB, one of the fluorinated terpolymers, exhibited a high PCE near 8.5% with simultaneously enhanced V oc and J sc relative to the non-fluorinated one (PCB).
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Affiliation(s)
- Cai'e Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, China
| | - Yahui Liu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, China
| | - Jia Tu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, China
| | - Shouli Ming
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, China
| | - Xinjun Xu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, China
| | - Zhishan Bo
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, China
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Ho WJ, Chen GY, Liu JJ. Enhancing Photovoltaic Performance of Plasmonic Silicon Solar Cells with ITO Nanoparticles Dispersed in SiO 2 Anti-Reflective Layer. Materials (Basel) 2019; 12:ma12101614. [PMID: 31100917 PMCID: PMC6566791 DOI: 10.3390/ma12101614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 11/22/2022]
Abstract
In this study, we sought to enhance the photovoltaic performance of silicon solar cells by coating them (via the spin-on film technique) with a layer of SiO2 containing plasmonic indium-tin-oxide nanoparticles (ITO-NPs) of various concentrations. We demonstrated that the surface plasmon resonance absorption, surface morphology, and transmittance of the ITO-NPs dispersed in SiO2 layer at various concentrations (1–7 wt%). We also assessed the plasmonic scattering effects of ITO-NPs within a layer of SiO2 with and without a sub-layer of ITO in terms of optical reflectance, external quantum efficiency, and photovoltaic current-voltage under air mass (AM) 1.5G solar simulation. Compared to an uncoated reference silicon solar cell, applying a layer of SiO2 containing 3 wt% ITO-NPs improved efficiency by 17.90%, whereas applying the same layer over a sub-layer of ITO improved efficiency by 33.27%, due to the combined effects of anti-reflection and plasmonic scattering.
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Affiliation(s)
- Wen-Jeng Ho
- Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
| | - Guan-Yu Chen
- Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
| | - Jheng-Jie Liu
- Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
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Yang F, Liu J, Wang X, Tanaka K, Shinokita K, Miyauchi Y, Wakamiya A, Matsuda K. Planar Perovskite Solar Cells with High Efficiency and Fill Factor Obtained Using Two-Step Growth Process. ACS Appl Mater Interfaces 2019; 11:15680-15687. [PMID: 30964251 DOI: 10.1021/acsami.9b02948] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid organic-inorganic perovskite solar cells (PSCs) have been regarded as the most promising next-generation photovoltaics (PVs) because of their potential for low-cost fabrication and advances in their development. Superior quality of the photoactive perovskite layer is a main factor for further increasing the PV performance of the organic-inorganic perovskite solar cells (PSCs). Herein, we successfully obtained perovskite with a high crystallinity and large grain size by utilizing excess PbI2 and SSGP technique and demonstrated a superior PV performance of normal-architecture planar PSCs. The SSGP PSCs with the highest fill factor (FF) reported thus far (83.4%) to our knowledge were obtained without sacrificing other PV parameters. Moreover, a high efficiency of 21.3% (21.6%) with a high FF of 80.0% (81.2%) in forward (reverse) scan was achieved. The unencapsulated SSGP PSCs showed robust continuous light-soaking and thermal stability under harsh characterization conditions. Additionally, we achieved a high efficiency of 20.1% with a negligible hysteresis on the large active area SSGP PSCs (∼1 cm2). The optical properties, efficient carrier extraction, and reduction of recombination loss of the SSGP perovskite significantly contribute to the high PV performance and robust stability of SSGP PSCs.
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Jiang K, Wu F, Zhu L, Yan H. Naphthodiperylenetetraimide-Based Polymer as Electron-Transporting Material for Efficient Inverted Perovskite Solar Cells. ACS Appl Mater Interfaces 2018; 10:36549-36555. [PMID: 30256089 DOI: 10.1021/acsami.8b12675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An n-type conjugated polymer NDP-V [poly(naphthodiperylenetetraimide-vinylene)] with a backbone of alternating naphthodiperylenetetraimide and vinylene is successfully used as an efficient electron-transporting layer (ETL) material in inverted planar perovskite solar cells (PSCs). It was found that device based on NDP-V exhibits a maximum power conversion efficiency (PCE) of 16.54%, whereas a maximum PCE of 15.27% is obtained based on the fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM). The interfacial effect induced by NDP-V is studied using atomic force microscopy images, and NDP-V ensures good selective contact between the perovskite material and the metal electrode. Through steady-state and time-resolved photoluminescence, we find that NDP-V acts as an efficient electron extraction material. Additionally, compared with PC61BM, NDP-V shows higher electron mobility, more hydrophobicity, and compatible energy levels with perovskite materials, thus providing higher device performance and better device stability. This work highlights the great potential of perylenediimide derivatives to replace the most popular PC61BM ETL for inverted PSCs.
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Affiliation(s)
- Kui Jiang
- Department of Chemistry and Energy Institute , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon 999077 , Hong Kong
| | - Fei Wu
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, Faculty of Materials & Energy , Southwest University , Chongqing 400715 , P. R. China
| | - Linna Zhu
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, Faculty of Materials & Energy , Southwest University , Chongqing 400715 , P. R. China
| | - He Yan
- Department of Chemistry and Energy Institute , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon 999077 , Hong Kong
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Ho WJ, You BJ, Liu JJ, Bai WB, Syu HJ, Lin CF. Photovoltaic Performance Enhancement of Silicon Solar Cells Based on Combined Ratios of Three Species of Europium-Doped Phosphors. Materials (Basel) 2018; 11:E845. [PMID: 29783716 DOI: 10.3390/ma11050845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 12/15/2022]
Abstract
This paper presents a scheme for the enhancement of silicon solar cells in terms of luminescent emission band and photovoltaic performance. The proposed devices are coated with an luminescent down-shifting (LDS) layer comprising three species of europium (Eu)-doped phosphors mixed within a silicate film (SiO₂) using a spin-on film deposition. The three species of phosphor were mixed at ratios of 0.5:1:1.5, 1:1:1, or 1.5:1:0.5 in weight percentage (wt %). The total quantity of Eu-doped phosphors in the silicate solution was fixed at 3 wt %. The emission wavelengths of the Eu-doped phosphors were as follows: 518 nm (specie-A), 551 nm (specie-B), and 609 nm (specie-C). We examined the extended luminescent emission bands via photoluminescence measurements at room temperature. Closely matching the luminescent emission band to the high responsivity band of the silicon semiconductor resulted in good photovoltaic performance. Impressive improvements in efficiency were observed in all three samples: 0.5:1:1.5 (20.43%), 1:1:1 (19.67%), 1.5:1:0.5 (16.81%), compared to the control with a layer of pure SiO₂ (13.80%).
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Jiang Y, Qian X, Zhu C, Liu H, Hou L. Nickel Cobalt Sulfide Double-Shelled Hollow Nanospheres as Superior Bifunctional Electrocatalysts for Photovoltaics and Alkaline Hydrogen Evolution. ACS Appl Mater Interfaces 2018; 10:9379-9389. [PMID: 29481033 DOI: 10.1021/acsami.7b18439] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Transition metal chalcogenides with hollow nanostructures have been considered as promising substitutes as precious metal electrocatalysts for energy conversion and storage. We synthesized NiCo2S4 double-shelled ball-in-ball hollow spheres (BHSs) via a simple solvothermal route and applied them in both dye-sensitized solar cells (DSSCs) and hydrogen evolution reactions (HERs) at the same time, which were clean and sustainable ways to convert energy. Benefiting from their remarkable structure features and advantageous chemical compositions, NiCo2S4 BHSs composed of tiny crystals possessed large surface area, well-defined interior voids, and high catalytic activity. The DSSC with NiCo2S4 BHSs under 100 mW cm-2 irradiation possessed a power conversion efficiency of 9.49% (Pt, 8.30%). Besides, NiCo2S4 BHSs as a HER catalyst also possessed a small onset overpotential (27.9 mV) and a low overpotential (89.7 mV at 10 mA cm-2) under alkaline conditions. Therefore, this work offers a sensible strategy to synthesize bifunctional electrocatalysts for DSSCs and HERs.
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Affiliation(s)
- Yiqing Jiang
- College of Chemical Engineering , Fuzhou University , Xueyuan Road No. 2 , Fuzhou 350116 , China
| | - Xing Qian
- College of Chemical Engineering , Fuzhou University , Xueyuan Road No. 2 , Fuzhou 350116 , China
| | - Changli Zhu
- College of Chemical Engineering , Fuzhou University , Xueyuan Road No. 2 , Fuzhou 350116 , China
| | - Hongyu Liu
- College of Chemical Engineering , Fuzhou University , Xueyuan Road No. 2 , Fuzhou 350116 , China
| | - Linxi Hou
- College of Chemical Engineering , Fuzhou University , Xueyuan Road No. 2 , Fuzhou 350116 , China
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Lan C, Luo J, Lan H, Fan B, Peng H, Zhao J, Sun H, Zheng Z, Liang G, Fan P. Enhanced Charge Extraction of Li-Doped TiO₂ for Efficient Thermal-Evaporated Sb₂S₃ Thin Film Solar Cells. Materials (Basel) 2018; 11:ma11030355. [PMID: 29495612 PMCID: PMC5872934 DOI: 10.3390/ma11030355] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/24/2018] [Accepted: 02/26/2018] [Indexed: 11/26/2022]
Abstract
We provided a new method to improve the efficiency of Sb2S3 thin film solar cells. The TiO2 electron transport layers were doped by lithium to improve their charge extraction properties for the thermal-evaporated Sb2S3 solar cells. The Mott-Schottky curves suggested a change of energy band and faster charge transport in the Li-doped TiO2 films. Compared with the undoped TiO2, Li-doped mesoporous TiO2 dramatically improved the photo-voltaic performance of the thermal-evaporated Sb2S3 thin film solar cells, with the average power conversion efficiency (PCE) increasing from 1.79% to 4.03%, as well as the improved open-voltage (Voc), short-circuit current (Jsc) and fill factors. The best device based on Li-doped TiO2 achieved a power conversion efficiency up to 4.42% as well as a Voc of 0.645 V, which are the highest values among the reported thermal-evaporated Sb2S3 solar cells. This study showed that Li-doping on TiO2 can effectively enhance the charge extraction properties of electron transport layers, offering a new strategy to improve the efficiency of Sb2S3-based solar cells.
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Affiliation(s)
- Chunfeng Lan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Jingting Luo
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Huabin Lan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Bo Fan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Huanxin Peng
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Jun Zhao
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Huibin Sun
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Zhuanghao Zheng
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Guangxing Liang
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
| | - Ping Fan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
- Institute of Thin Film Physics and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China.
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Koo BR, Oh DH, Riu DH, Ahn HJ. Improvement of Transparent Conducting Performance on Oxygen-Activated Fluorine-Doped Tin Oxide Electrodes Formed by Horizontal Ultrasonic Spray Pyrolysis Deposition. ACS Appl Mater Interfaces 2017; 9:44584-44592. [PMID: 29193954 DOI: 10.1021/acsami.7b12968] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, highly transparent conducting fluorine-doped tin oxide (FTO) electrodes were fabricated using the horizontal ultrasonic spray pyrolysis deposition. In order to improve their transparent conducting performances, we carried out oxygen activation by adjusting the ratio of O2/(O2+N2) in the carrier gas (0%, 20%, and 50%) used during the deposition process. The oxygen activation on the FTO electrodes accelerated the substitution concentration of F (FO•) into the oxygen sites in the FTO electrode while the oxygen vacancy (VO••) concentration was reduced. In addition, due to growth of pyramid-shaped crystallites with (200) preferred orientations, this oxygen activation caused the formation of a uniform surface structure. As a result, compared to others, the FTO electrode prepared at 50% O2 showed excellent electrical and optical properties (sheet resistance of ∼4.0 ± 0.14 Ω/□, optical transmittance of ∼85.3%, and figure of merit of ∼5.09 ± 0.19 × 10-2 Ω-1). This led to a superb photoconversion efficiency (∼7.03 ± 0.20%) as a result of the improved short-circuit current density. The photovoltaic performance improvement can be defined by the decreased sheet resistance of FTO used as a transparent conducting electrode in dye-sensitized solar cells (DSSCs), which is due to the combined effect of the high carrier concentration by the improved FO• concentration on the FTO electrodes and the fasted Hall mobility by the formation of a uniform FTO surface structure and distortion relaxation on the FTO lattices resulting from the reduced VO••• concentration.
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Affiliation(s)
| | | | - Doh-Hyung Riu
- Research Institute for FTO, ceon Co., Ltd. , Suwon-si, Gyeonggi-do 16642, Korea
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Lou Y, Zhao W, Li C, Huang H, Bai T, Chen C, Liang C, Shi Z, Zhang D, Chen XB, Feng S. Application of Cu 3InSnSe 5 Heteronanostructures as Counter Electrodes for Dye-Sensitized Solar Cells. ACS Appl Mater Interfaces 2017; 9:18046-18053. [PMID: 28513141 DOI: 10.1021/acsami.7b03117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this research, we reported the synthesis of quaternary Cu3InSnSe5 nanoparticles with uniform size distribution and morphology for the first time through delicate controls over the chemical reaction kinetics. On the basis of the preparation strategy of Cu3InSnSe5 nanoparticles, Pt-Cu3InSnSe5 and Au-Cu3InSnSe5 heteronanostructures were designed and yielded using a simple and efficient seed growth method. These two heteronanostructures remained monodispersed without presence of any Cu3InSnSe5 nanocrystal impurities. To explore their application potentials for dye-sensitized solar cells, counter electrodes consisting of individual Cu3InSnSe5, Pt-Cu3InSnSe5, or Au-Cu3InSnSe5 constituents were fabricated. Current density-voltage (J-V) characteristics evaluation reveals that Cu3InSnSe5 nanoparticles, Pt-Cu3InSnSe5 and Au-Cu3InSnSe5 heterostructured nanoparticles display a comparative power conversion efficiency (PCE) of 5.8%, 7.6%, and 6.5% to that of a Pt-based counter electrode (7.9%), respectively. As such, we believe that the reported preparation strategy could provide new insights to the design and manufacture of counter electrode materials with controlled structure, morphology, and optimized power conversion efficiency for dye-sensitized solar cells.
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Affiliation(s)
| | | | | | | | - Tianyu Bai
- College of Medical Laboratory, Dalian Medical University , Dalian 116044, P. R. China
| | | | | | | | | | - Xiao-Bo Chen
- School of Engineering, RMIT University , Carlton, Victoria 3053, Australia
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Jin J, Chen C, Li H, Cheng Y, Xu L, Dong B, Song H, Dai Q. Enhanced Performance and Photostability of Perovskite Solar Cells by Introduction of Fluorescent Carbon Dots. ACS Appl Mater Interfaces 2017; 9:14518-14524. [PMID: 28387496 DOI: 10.1021/acsami.7b02242] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Perovskite solar cells (PSCs) with high efficiency have recently received tremendous attention, but the stability under light irradiation, namely, photostability, of PSCs still represents a major obstacle that must be overcome before their practical applications can be used. The degeneration of perovskite under ultraviolet irradiation from sunlight is a major impacting factor. To solve this problem, in this work we introduce fluorescent carbon dots (CDs), which could effectively convert ultraviolet to blue light in the mesoporous TiO2 (m-TiO2) layer of the traditional PSCs. As a result, CD-based devices exhibit an improved power conversion efficiency (PCE) of 16.4% on average compared to 14.6% for bare devices, and the light stability of CD-based devices is highly enhanced. These devices can maintain nearly 70% of the initial efficiency after 12 h of full sunlight illumination, while the bare devices maintain only 20% of the initial efficiency. This work indicates that fluorescent down conversion based on CDs is a novel and effective approach to improve the performance and photostability of PSCs.
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Affiliation(s)
- Junjie Jin
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Cong Chen
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Hao Li
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Yu Cheng
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Lin Xu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Hongwei Song
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Qilin Dai
- Department of Physics, Atmospheric Sciences and Geoscience, Jackson State University , Jackson, Mississippi 39217, United States
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Zhou K, Zhang R, Liu J, Li M, Yu X, Xing R, Han Y. Donor/Acceptor Molecular Orientation-Dependent Photovoltaic Performance in All-Polymer Solar Cells. ACS Appl Mater Interfaces 2015; 7:25352-25361. [PMID: 26528711 DOI: 10.1021/acsami.5b07605] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The correlated donor/acceptor (D/A) molecular orientation plays a crucial role in solution-processed all-polymer solar cells in term of photovoltaic performance. For the conjugated polymers PTB7-th and P(NDI2OD-T2), the preferential molecular orientation of neat PTB7-th films kept face-on regardless of the properties of processing solvents. However, an increasing content of face-on molecular orientation in the neat P(NDI2OD-T2) films could be found by changing processing solvents from chloronaphthalene (CN) and o-dichlorobenzene (oDCB) to chlorobenzene (CB). Besides, the neat P(NDI2OD-T2) films also exhibited a transformation of preferential molecular orientation from face-on to edge-on when extending film drying time by casting in the same solution. Consequently, a distribution diagram of molecular orientation for P(NDI2OD-T2) films was depicted and the same trend could be observed for the PTB7-th/P(NDI2OD-T2) blend films. By manufacture of photovoltaic devices with blend films, the relationship between the correlated D/A molecular orientation and device performance was established. The short-circuit current (Jsc) of devices processed by CN, oDCB, and CB enhanced gradually from 1.24 to 8.86 mA/cm(2) with the correlated D/A molecular orientation changing from face-on/edge-on to face-on/face-on, which could be attributed to facile exciton dissociation at D/A interface with the same molecular orientation. Therefore, the power conversion efficiency (PCE) of devices processed by CN, oDCB, and CB improved from 0.53% to 3.52% ultimately.
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Affiliation(s)
- Ke Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Rui Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Jiangang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Mingguang Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Xinhong Yu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Rubo Xing
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yanchun Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
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Dai P, Yang L, Liang M, Dong H, Wang P, Zhang C, Sun Z, Xue S. Influence of the Terminal Electron Donor in D-D-π-A Organic Dye-Sensitized Solar Cells: Dithieno[3,2-b:2',3'-d]pyrrole versus Bis(amine). ACS Appl Mater Interfaces 2015; 7:22436-22447. [PMID: 26394089 DOI: 10.1021/acsami.5b06481] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
With respect to the electron-withdrawing acceptors of D-A-π-A organic dyes, reports on the second electron-donating donors for D-D-π-A organic dyes are very limited. Both of the dyes have attracted significant attention in the field of dye-sensitized solar cells (DSCs). In this work, four new D-D-π-A organic dyes with dithieno[3,2-b:2',3'-d]pyrrole (DTP) or bis(amine) donor have been designed and synthesized for a investigation of the influence of the terminal electron donor in D-D-π-A organic dye-sensitized solar cells. It is found that DTP is a promising building block as the terminal electron donor when introduced in the dithiophenepyrrole direction, but not just a good bridge, which exhibits several characteristics: (i) efficiently increasing the maximum molar absorption coefficient and extending the absorption bands; (ii) showing stronger charge transfer interaction as compared with the pyrrole direction; (iii) beneficial to photocurrent generation of DSCs employing cobalt electrolytes. DSCs based on M45 with the Co-phen electrolyte exhibit good light-to-electric energy conversion efficiencies as high as 9.02%, with a short circuit current density (JSC) of 15.3 mA cm(-2), open circuit voltage (VOC) of 867 mV and fill factor (FF) of 0.68 under AM 1.5 illumination (100 mW cm(-2)). The results demonstrate that N,S-heterocycles such as DTP unit could be promising candidates for application in highly efficient DSCs employing cobalt electrolyte.
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Affiliation(s)
- Panpan Dai
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology , Tianjin 300384, People's Republic of China
| | - Lin Yang
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences No. 5625, Ren Min Street, Changchun 130022, People's Republic of China
| | - Mao Liang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology , Tianjin 300384, People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering, College of Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Huanhuan Dong
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology , Tianjin 300384, People's Republic of China
| | - Peng Wang
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences No. 5625, Ren Min Street, Changchun 130022, People's Republic of China
| | - Chunyao Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology , Tianjin 300384, People's Republic of China
| | - Zhe Sun
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology , Tianjin 300384, People's Republic of China
| | - Song Xue
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology , Tianjin 300384, People's Republic of China
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Du T, Wang N, Chen H, Lin H, He H. Comparative study of vapor- and solution-crystallized perovskite for planar heterojunction solar cells. ACS Appl Mater Interfaces 2015; 7:3382-3388. [PMID: 25590573 DOI: 10.1021/am508495r] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Organometal halide perovskite (CH3NH3PbI3) could be crystallized by exposing PbI2 to either CH3NH3I solution or CH3NH3I vapor. Though high performance was achieved in both approaches, it was still not clear which approach would be more desirable for device performance in principle. Herein, we addressed this issue by investigating the influence of crystallization condition on perovskite morphology, and subsequently on device performances. We found that vapor-crystallized perovskite devices demonstrated smoother surface morphology, better light absorption, lower charge recombination, and thus much higher conversion efficiency than solution-crystallized devices, which would give some useful enlightenment to develop high-performance planar perovskite solar cells.
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Affiliation(s)
- Tian Du
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 610054, P.R. China
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Tang A, Teng F, Wang Y, Hou Y, Han W, Yi L, Gao M. Investigation on Photovoltaic Performance based on Matchstick-Like Cu(2)S-In(2)S(3) Heterostructure Nanocrystals and Polymer. Nanoscale Res Lett 2008; 3:502-507. [PMID: 20596339 PMCID: PMC2894328 DOI: 10.1007/s11671-008-9187-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Accepted: 10/03/2008] [Indexed: 05/27/2023]
Abstract
In this paper, we synthesized a novel type II cuprous sulfide (Cu(2)S)-indium sulfide (In(2)S(3)) heterostructure nanocrystals with matchstick-like morphology in pure dodecanethiol. The photovoltaic properties of the heterostructure nanocrystals were investigated based on the blends of the nanocrystals and poly(2-methoxy-5-(2'-ethylhexoxy)-p-phenylenevinylene) (MEH-PPV). In comparison with the photovoltaic properties of the blends of Cu(2)S or In(2)S(3) nanocrystals alone and MEH-PPV, the power conversion efficiency of the hybrid device based on blend of Cu(2)S-In(2)S(3) and MEH-PPV is enhanced by ~3-5 times. This improvement is consistent with the improved exciton dissociation or separation and better charge transport abilities in type II heterostructure nanocrystals.
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Affiliation(s)
- Aiwei Tang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing JiaoTong University, Beijing, 100044, People’s Republic of China
| | - Feng Teng
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing JiaoTong University, Beijing, 100044, People’s Republic of China
| | - Yan Wang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing JiaoTong University, Beijing, 100044, People’s Republic of China
| | - Yanbing Hou
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing JiaoTong University, Beijing, 100044, People’s Republic of China
| | - Wei Han
- Institute of Chemistry, Chinese Academy of Sciences, Zhong Guan Cun, Bei Yi Jie 2, Beijing, 100080, People’s Republic of China
| | - Luoxin Yi
- Institute of Chemistry, Chinese Academy of Sciences, Zhong Guan Cun, Bei Yi Jie 2, Beijing, 100080, People’s Republic of China
| | - Mingyuan Gao
- Institute of Chemistry, Chinese Academy of Sciences, Zhong Guan Cun, Bei Yi Jie 2, Beijing, 100080, People’s Republic of China
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