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Wang L, Miao Q, Wang D, Zhang Z, Chen M, Bi H, Liu J, Baranwal AK, Kapil G, Sanehira Y, Kitamura T, Shen Q, Ma T, Hayase S. Ternary Passivation for Enhanced Carrier Transport and Recombination Suppression in Highly Efficient Sn-Based Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404026. [PMID: 39118554 DOI: 10.1002/smll.202404026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/09/2024] [Indexed: 08/10/2024]
Abstract
The exploration of nontoxic Sn-based perovskites as a viable alternative to their toxic Pb-based counterparts has garnered increased attention. However, the power conversion efficiency of Sn-based perovskite solar cells lags significantly behind their Pb-based counterparts. This study presents a ternary passivation strategy aimed at enhancing device performance, employing [6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM), poly(3-hexylthiophene) (P3HT), and indene C60 bisadduct (ICBA). These components play crucial roles in managing energy levels and enhancing carrier transportation, respectively. The results reveal that the introduction of the ternary system leads to improvements in carrier collection and transportation, accompanied by a suppression of the recombination process. Ultimately, the champion device achieves a remarkable performance with an efficiency of 14.64%. Notably, the device also exhibits robust operational and long-term stored stability.
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Affiliation(s)
- Liang Wang
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Qingqing Miao
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou, 450000, P. R. China
- Langfang Technological Centre of Green Industry, Langfang, 065001, P. R. China
| | - Dandan Wang
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Zheng Zhang
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Mengmeng Chen
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Huan Bi
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Jiaqi Liu
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Ajay Kumar Baranwal
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Gaurav Kapil
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Yoshitaka Sanehira
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Takeshi Kitamura
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Qing Shen
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Tingli Ma
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Shuzi Hayase
- info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan
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Zheng L, Zhao Y, Zhao R, Xie L, Hua Y. Additive engineering via multiple-anchoring enhances 2D perovskite solar cells' performance. Chem Commun (Camb) 2024; 60:7487-7490. [PMID: 38940677 DOI: 10.1039/d4cc01590h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Passivation defects and reducing charge recombination are of great importance in enhancing 2D perovskite solar cells' (PSCs) performance. Herein, a novel additive (TEMPIC) is introduced into 2D PSCs to improve photovoltaic properties of the device, which are mainly attributed to passivated trap-states and reduced charge recombination in device.
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Affiliation(s)
- Liangding Zheng
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials Science and Energy, Yunnan University, 650091 Kunming, China.
| | - Yuanju Zhao
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials Science and Energy, Yunnan University, 650091 Kunming, China.
| | - Rongjun Zhao
- Department of Physics, Center for Optoelectronics Engineering Research, Yunnan University, 650091 Kunming, China
| | - Lin Xie
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials Science and Energy, Yunnan University, 650091 Kunming, China.
| | - Yong Hua
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials Science and Energy, Yunnan University, 650091 Kunming, China.
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3
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Ma X, Wang N. Open-circuit voltage deficits in Tin-based perovskite solar cells. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:393002. [PMID: 38906134 DOI: 10.1088/1361-648x/ad5ad0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/21/2024] [Indexed: 06/23/2024]
Abstract
The power conversion efficiency of Pb-based single-junction perovskite solar cells (PSCs) has surpassed 26%; however, the biocompatibility concerns associated with Pb pose threats to both the environment and living organisms. Consequently, the development of Pb-free PSCs is imperative. Among the various alternatives to Pb-based PSCs, Sn-based PSCs have exhibited outstanding optoelectronic properties, showing great potential for large-scale manufacturing and commercialization. Nevertheless, there remains a significant efficiency gap between Sn-based and Pb-based PSCs. The disparity primarily stems from substantial open-circuit voltage (VOC) deficits in Sn-based PSCs, typically ranging from 0.4 to 0.6 V. The main reason ofVOCdeficits is severe non-radiative recombination losses, which are caused by the uncontrolled crystallization kinetics of Sn halide perovskites and the spontaneous oxidation of Sn2+. This review summarizes the reasons forVOCdeficits in Sn-based PSCs, and the corresponding strategies to mitigate these issues. Additionally, it outlines the persistent challenges and future prospects for Sn-based PSCs, providing guidance to assist researchers in developing more efficient and stable Sn-based perovskites.
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Affiliation(s)
- Xue Ma
- College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Ning Wang
- College of Physics, Jilin University, Changchun 130012, People's Republic of China
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Wang T, Loi HL, Cao Q, Feng G, Guan Z, Wei Q, Chen C, Li M, Zhu Y, Lee CS, Yan F. Counter-Doping Effect by Trivalent Cations in Tin-Based Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402947. [PMID: 38743762 DOI: 10.1002/adma.202402947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/13/2024] [Indexed: 05/16/2024]
Abstract
Tin (Sn) -based perovskite solar cells (PSCs) normally show low open circuit voltage due to serious carrier recombination in the devices, which can be attributed to the oxidation and the resultant high p-type doping of the perovskite active layers. Considering the grand challenge to completely prohibit the oxidation of Sn-based perovskites, a feasible way to improve the device performance is to counter-dope the oxidized Sn-based perovskites by replacing Sn2+ with trivalent cations in the crystal lattice, which however is rarely reported. Here, the introduction of Sb3+, which can effectively counter-dope the oxidized perovskite layer and improve the carrier lifetime, is presented. Meanwhile, Sb3+ can passivate deep-level defects and improve carrier mobility of the perovskite layer, which are all favorable for the photovoltaic performance of the devices. Consequently, the target devices yield a relative enhancement of the power conversion efficiency (PCE) of 31.4% as well as excellent shelf-storage stability. This work provides a novel strategy to improve the performance of Sn-based PSCs, which can be developed as a universal way to compensate for the oxidation of Sn-based perovskites in optoelectronic devices.
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Affiliation(s)
- Tianyue Wang
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Hok-Leung Loi
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Qi Cao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Guitao Feng
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Zhiqiang Guan
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, 999077, P. R. China
| | - Qi Wei
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Changsheng Chen
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Mingjie Li
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Ye Zhu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, 999077, P. R. China
| | - Feng Yan
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
- Research Institute of Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
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He Z, Zhang Z, Ding J, Gao W, Li M, Chen C. Managing Pb-Related Imperfections via Rationally Designed Aniline Derivative with Bilateral Cyano and Acetyl Groups as Lewis Base for High-Efficiency Perovskite Solar Cells Exceeding 24. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404334. [PMID: 38864215 DOI: 10.1002/smll.202404334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Indexed: 06/13/2024]
Abstract
Pb-related imperfections (surface or halide vacancy induced uncoordinated Pb2+, Pb-I antisite, and Pb2+ vacancy defects) of the ionic crystal perovskite film seriously restrict the photovoltaic performance of perovskite solar cells (PSCs). Here, an aniline derivative N-(4-cyanophenyl)acetamide (CAL) is rationally designed, incorporating bilateral functional sites of cyano and acetyl groups, acting as Lewis base molecule for managing the Pb-related imperfections in perovskite surface through post-treatment. Theoretical calculation and experimental verification together proved the reduced defect density, improved crystallinity, and inhibited ion migration in the CAL-modified perovskite. Precisely, cyano as a side group and acetyl as another side group can both coordinate with Pb2+ for its low electrostatic potential energy. Further, the aniline core and the π-π conjugate structure in the benzene ring of the ligand tend to form a dimer to improve the mobility for carrier transportation and collection. The strategy demonstrates a champion PCE of 24.35% for the air-processed PSCs with over 1200 hours of maximum power point tracking (MPPT) stability. This study presents a comprehensive approach to overcoming the current Pb-related imperfections induced limitations in PSCs, paving the way for their integration into mainstream solar technologies.
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Affiliation(s)
- Zijie He
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Zuolin Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Jike Ding
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Wenhuan Gao
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Mengjia Li
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Cong Chen
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
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Hou E, Chen J, Luo J, Fan Y, Sun C, Ding Y, Xu P, Zhang H, Cheng S, Zhao X, Xie L, Yan J, Tian C, Wei Z. Cross-Linkable Fullerene Enables Elastic and Conductive Grain Boundaries for Efficient and Wearable Tin-Based Perovskite Solar Cells. Angew Chem Int Ed Engl 2024; 63:e202402775. [PMID: 38468414 DOI: 10.1002/anie.202402775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/13/2024]
Abstract
Tin-based perovskite solar cells (TPSCs) have received increasing attention due to their low toxicity, high theoretical efficiency, and potential applications as wearable devices. However, the inherent fast and uncontrollable crystallization process of tin-based perovskites results in high defect density in the film. Meanwhile, when fabricated into flexible devices, the prepared perovskite film exhibits inevitable brittleness and high Young's modulus, seriously weakening the mechanical stability. In this work, we design and synthesize a cross-linkable fullerene, thioctic acid functionalized C60 fulleropyrrolidinium iodide (FTAI), which has multiple interactions with perovskite components and can finely regulate the crystallization quality of perovskite film. The obtained perovskite film shows an increased grain size and a more matched energy level with the electron transport material, effectively improving the carrier extraction efficiency. The FTAI-based rigid device achieves a champion efficiency of 14.91 % with enhanced stability. More importantly, the FTAI located at the perovskite grain boundaries could spontaneously cross-link during the perovskite annealing process, which effectively improves the conductivity and elasticity of grain boundaries, thereby giving the film excellent bending resistance. Finally, the FTAI-based wearable device yields a record efficiency of 12.35 % and displays robust bending durability, retaining about 90 % of the initial efficiency after 10,000 bending times.
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Affiliation(s)
- Enlong Hou
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jingfu Chen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jiefeng Luo
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yuteng Fan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chao Sun
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yu Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Peng Xu
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Hui Zhang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Shuo Cheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Xinjing Zhao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Liqiang Xie
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jiawei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chengbo Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Zhanhua Wei
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
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He W, Duan X, Tang Q, Dou J, Duan J. Strain engineering improves the photovoltaic performance of carbon-based hole-transport-material free CsPbIBr 2 perovskite solar cells. Chem Commun (Camb) 2024; 60:4954-4957. [PMID: 38629259 DOI: 10.1039/d4cc01012d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Alkylamines with different chain lengths including n-butylamine, n-hexylamine, and n-octylamine, are applied to regulate the CsPbIBr2 perovskite film quality by strain engineering. The status of residual strains is controllably modulated, resulting in improved efficiency and stability of carbon-based hole-transport-material free CsPbIBr2 perovskite solar cells.
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Affiliation(s)
- Wei He
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, P. R. China
| | - Xingxing Duan
- Institute of Carton Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
| | - Qunwei Tang
- Institute of Carton Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
| | - Jie Dou
- Institute of Carton Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
| | - Jialong Duan
- Institute of Carton Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
- Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
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Ma X, Zhang Y, Zhou J, Liu L, Ju M, Wang N. Mitigating Surface Defects in Tin-Based Perovskite Films with α-Tocopherol for Enhanced Photovoltaic Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307373. [PMID: 38012527 DOI: 10.1002/smll.202307373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/26/2023] [Indexed: 11/29/2023]
Abstract
Surface defects in tin-based perovskite films disrupt the periodic arrangement of atoms in crystals, making surface atoms more susceptible to interactions with water and oxygen molecules in the surrounding environment. The diffusion of oxygen ions into the perovskite interior leads to the formation of severe bulk defects, which compromises the performance of tin-based perovskite solar cells (PSCs). As a result, surface defects are recognized as the primary source of degradation and require special attention. In this study, α-Tocopherol (also known as vitamin E) into tin-based perovskite films is introduced. Experimental results show that because of its larger volume, α-Tocopherol does not enter the perovskite lattice. Instead, it forms van der Waals and hydrogen bond interactions with the formamidine ion (FA+) and the [SnI6]4- octahedron at the perovskite terminals. Through α-Tocopherol passivation, both surface and interior oxidation of the perovskite are significantly suppressed as α-Tocopherol firmly embeds itself on the perovskite surface. Density functional theory analysis confirms the inhibition of I─Sn antisite defects (ISn) and Sn interstitial defects (Sni), which possess deep trap states within the bandgap. Ultimately, it is demonstrated that α-Tocopherol enhances the power conversion efficiency (PCE) from 9.19% to 13.14% and prolongs the lifetime of tin-based PSCs to over 50 days.
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Affiliation(s)
- Xue Ma
- College of Physics, Jilin University, Changchun, 130012, China
| | - Yu Zhang
- College of Physics, Jilin University, Changchun, 130012, China
| | - Jianheng Zhou
- College of Physics, Jilin University, Changchun, 130012, China
| | - Lang Liu
- College of Physics, Jilin University, Changchun, 130012, China
| | - Minggang Ju
- School of Physics, Southeast University, Nanjing, 211189, China
| | - Ning Wang
- College of Physics, Jilin University, Changchun, 130012, China
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Ren Y, Fu H, Sun Y, Li Z, Guo X, An X. Building (001) oriented FAPbI 3 films for high-performing perovskite solar cells. Chem Commun (Camb) 2024. [PMID: 38456471 DOI: 10.1039/d4cc00212a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The solution processed FAPbI3 perovskite usually suffers from chaotic orientations. Herein, a template structure of oriented 2D perovskite is used to obtain a high-quality FAPbI3 film with (001) preferred orientation by cation exchange. The highly oriented BA2PbI4 serves as a growth template and promotes the (001) orientation of the 3D perovskite. The dominantly (001) orientated FAPbI3 perovskite exhibits uniform surface morphology and suppressed film defects.
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Affiliation(s)
- Yingke Ren
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Hongyang Fu
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Yingjie Sun
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Zhaoqian Li
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
| | - Xinge Guo
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xingtao An
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
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10
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Ren Y, Fu H, Li Y, Li Z, Li C, An X. Interfacial engineering eliminates energy loss at perovskite/HTL junction. Chem Commun (Camb) 2024; 60:2938-2941. [PMID: 38372697 DOI: 10.1039/d3cc05572h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Realizing efficient FAPbI3-based devices with high open-circuit voltage (VOC) is still challenging, due to severe energy loss between the n-type perovskite and p-type hole-transporting layer (HTL). Here, we developed a strategy involving controlling the formation of iodine vacancies in order to induce formation of p-type perovskite and hence mitigate such energy loss. Post-deposition of n-butylamine iodide was discovered to induce an n-to-p-type transition in the FAPbI3 perovskite and hence form the p-type perovskite/p-type HTL junction. The resultant device realized a VOC of as high as 1.12 V, a value ∼14.3% higher than that of the corresponding n-type FAPbI3 device (0.98 V).
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Affiliation(s)
- Yingke Ren
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Hongyang Fu
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Yun Li
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Zhaoqian Li
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China.
| | - Cong Li
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Xingtao An
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
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11
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Yu W, Zou Y, Wang H, Qi S, Wu C, Guo X, Liu Y, Chen Z, Qu B, Xiao L. Breaking the bottleneck of lead-free perovskite solar cells through dimensionality modulation. Chem Soc Rev 2024; 53:1769-1788. [PMID: 38269613 DOI: 10.1039/d3cs00728f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The emerging perovskite solar cell (PSC) technology has attracted significant attention due to its superior power conversion efficiency (PCE) among the thin-film photovoltaic technologies. However, the toxicity of lead and poor stability of lead halide materials hinder their commercialization. In this case, after a decade of effort, various categories of lead-free perovskites and perovskite-like materials have been developed, including tin halide perovskites, double perovskites, defect-structured perovskites, and rudorffites. However, the performance of the corresponding devices still falls short of expectations, especially their PCE. The limitations mainly originate from either the unstable lattice structure of these materials, which causes the distortion of their octahedra, or their low dimensionality (e.g., structural and electronic dimensionality)-correlated poor carrier transport and self-trapping effect, accelerating nonradiative recombination. Therefore, understanding the relationship between the structures and performance in these emerging candidates and leveraging these insights to design or modify new lead-free perovskites is of great significance. Herein, we review the variety of dimensionalities in different categories of lead-free perovskites and perovskite-like materials and conclude that dimensionality is an important aspect among the crucial indexes that determine the performance of lead-free PSCs. In addition, we summarize the modulation of both structural and electronic dimensionality, and the corresponding enhanced optoelectronic properties in different categories. Finally, perspectives on the future development of lead-free perovskites and perovskite-like materials for photovoltaic applications are provided. We hope that this review will provide researchers with a concise overview of these emerging materials and help them leverage dimensionality to break the bottleneck in photovoltaic applications.
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Affiliation(s)
- Wenjin Yu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Yu Zou
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Hantao Wang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Siyuan Qi
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Cuncun Wu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Xinyu Guo
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Yueli Liu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Zhijian Chen
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Bo Qu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
| | - Lixin Xiao
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P. R. China.
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Wang S, Wu C, Yao H, Xie L, Xiao Y, Ding L, Hao F. Defect Compensation and Lattice Stabilization Enables High Voltage Output in Tin Halide Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2308877. [PMID: 37948431 DOI: 10.1002/smll.202308877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Indexed: 11/12/2023]
Abstract
Tin halide perovskite solar cells (PSCs) are regarded as the most promising lead-free alternatives for photovoltaic applications. However, they still suffer from uncompetitive photovoltaic performance because of the facile Sn2+ oxidation and Sn-related defects. Herein, a defect and carrier management strategy by using diaminopyridine (DP) and 4-bromo-2,6-diaminopyridine (4BrDP) as multifunctional additives for tin halide perovskites is reported. Both DP and 4BrDP induced strong interaction with tin perovskites by coordinate bonding and N─H···I hydrogen bonding, which greatly suppresses the micro-strain and Urbach energy of tin halide perovskite films. The strong hydrogen bonding inhibits the formation of I3 - and related defect density. Meanwhile, the electron-donor species of halogen bond in 4BrDP provides higher reactivity of 2 and 6 sites, which indicates stronger passivation ability with tin halide perovskites. These advances enable a champion power conversion efficiency (PCE) of 13.40% in 4BrDP-processed devices with remarkable improvement in both open-circuit voltage (Voc ) of 881 mV and fill factor (FF) of 71.26%. The 4BrDP devices retain 91% and 82% of the pristine PCE after 2000 h storage in N2 atmosphere and 1000 h under 85 °C, respectively. Therefore, this work provides new insight into molecular design for high-performance and stable lead-free optoelectronics.
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Affiliation(s)
- Shurong Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Cheng Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Huanhuan Yao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Lisha Xie
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yu Xiao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and, Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Feng Hao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
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