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Shi J, Samad MW, Li F, Guo C, Liu C, Guo J, Zhang Y, Zeng J, Wang D, Ma W, Xu B, Yuan J. Dual-Site Molecular Dipole Enables Tunable Interfacial Field Toward Efficient and Stable Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2410464. [PMID: 39235583 DOI: 10.1002/adma.202410464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 08/20/2024] [Indexed: 09/06/2024]
Abstract
The interfacial management in perovskite solar cells (PSCs), including mitigating the carrier transport barrier and suppressing non-radiative recombination, still remains a significant challenge for efficiency and stability enhancement. Herein, by screening a family of fluorine (F) terminated dual-site organic dipole molecules, the study aims to gain insight into the molecular dipole array toward tunable interfacial field. Both experimental and theoretical results reveal that these functional interfacial dipole molecules can effectively anchor on perovskite surface through Lewis acid-base interaction. In addition, the tailored side-chain with terminated F atoms allows for altering and constructing a well matched perovskite/Spiro-OMeTAD interfacial contact. As a result, the inserting dual-site organic dipole array effectively modulates the interface to deliver a gradient energy level alignment, facilitating carrier extraction and transport. The optimal dual-site dipole trifluoro-methanesulfonamide mediated N-i-P PSCs achieve the highest efficiency of 25.47%, together with enhanced operational stability under 1000 h of the simulated 1-sun illumination exposure. These findings are believed to provide insight into the design of dual-site molecular dipole with sufficient interfacial tunability for perovskite-based optoelectronic devices.
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Affiliation(s)
- Junwei Shi
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Muhammad Waqas Samad
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
| | - Fangchao Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
| | - Chenxi Guo
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
| | - Cheng Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
| | - Junjun Guo
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
| | - Yong Zhang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Jie Zeng
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Deng Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Wanli Ma
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
| | - Baomin Xu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Jianyu Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, P. R. China
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2
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Ren M, Fang L, Zhang Y, Eickemeyer FT, Yuan Y, Zakeeruddin SM, Grätzel M, Wang P. Durable Perovskite Solar Cells with 24.5% Average Efficiency: The Role of Rigid Conjugated Core in Molecular Semiconductors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403403. [PMID: 38631689 DOI: 10.1002/adma.202403403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/05/2024] [Indexed: 04/19/2024]
Abstract
Efficient and robust n-i-p perovskite solar cells necessitate superior organic hole-transport materials with both mechanical and electronic prowess. Deciphering the structure-property relationship of these materials is crucial for practical perovskite solar cell applications. Through direct arylation, two high glass transition temperature molecular semiconductors, DBC-ETPA (202 °C) and TPE-ETPA (180 °C) are synthesized, using dibenzo[g,p]chrysene (DBC) and 1,1,2,2-tetraphenylethene (TPE) tetrabromides with triphenylene-ethylenedioxythiophene-dimethoxytriphenylamine (ETPA). In comparison to spiro-OMeTAD, both semiconductors exhibit shallower HOMO energy levels, resulting in increased hole densities (generated by air oxidation doping) and accelerated hole extraction from photoexcited perovskite. Experimental and theoretical studies highlight the more rigid DBC core, enhancing hole mobility due to reduced reorganization energy and lower energy disorder. Importantly, DBC-ETPA possesses a higher cohesive energy density, leading to lower ion diffusion coefficients and higher Young's moduli. Leveraging these attributes, DBC-ETPA is employed as the primary hole-transport layer component, yielding perovskite solar cells with an average efficiency of 24.5%, surpassing spiro-OMeTAD reference cells (24.0%). Furthermore, DBC-ETPA-based cells exhibit superior operational stability and 85 °C thermal storage stability.
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Affiliation(s)
- Ming Ren
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH 1015, Switzerland
| | - Lingyi Fang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Yuyan Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Felix T Eickemeyer
- Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH 1015, Switzerland
| | - Yi Yuan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Shaik M Zakeeruddin
- Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH 1015, Switzerland
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH 1015, Switzerland
| | - Peng Wang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
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3
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Lan Z, Huang H, Du S, Lu Y, Sun C, Yang Y, Zhang Q, Suo Y, Qu S, Wang M, Wang X, Yan L, Cui P, Zhao Z, Li M. Cascade Reaction in Organic Hole Transport Layer Enables Efficient Perovskite Solar Cells. Angew Chem Int Ed Engl 2024; 63:e202402840. [PMID: 38509835 DOI: 10.1002/anie.202402840] [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: 02/08/2024] [Revised: 03/03/2024] [Accepted: 03/18/2024] [Indexed: 03/22/2024]
Abstract
The doped organic hole transport layer (HTL) is crucial for achieving high-efficiency perovskite solar cells (PSCs). However, the traditional doping strategy undergoes a time-consuming and environment-dependent oxidation process, which hinders the technology upgrades and commercialization of PSCs. Here, we reported a new strategy by introducing a cascade reaction in traditional doped Spiro-OMeTAD, which can simultaneously achieve rapid oxidation and overcome the erosion of perovskite by 4-tert-butylpyridine (tBP) in organic HTL. The ideal dopant iodobenzene diacetate was utilized as the initiator that can react with Spiro to generate Spiro⋅+ radicals quickly and efficiently without the participation of ambient air, with the byproduct of iodobenzene (DB). Then, the DB can coordinate with tBP through a halogen bond to form a tBP-DB complex, minimizing the sustained erosion from tBP to perovskite. Based on the above cascade reaction, the resulting Spiro-based PSCs have a champion PCE of 25.76 % (certificated of 25.38 %). This new oxidation process of HTL is less environment-dependent and produces PSCs with higher reproducibility. Moreover, the PTAA-based PSCs obtain a PCE of 23.76 %, demonstrating the excellent applicability of this doping strategy on organic HTL.
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Affiliation(s)
- Zhineng Lan
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Hao Huang
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Shuxian Du
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Yi Lu
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Changxu Sun
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Yingying Yang
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Qiang Zhang
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Yi Suo
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Shujie Qu
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Min Wang
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Xinxin Wang
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Luyao Yan
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Peng Cui
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
| | - Zhiguo Zhao
- China Huaneng Clean Energy Research Institute, Beijing, 102209, China
| | - Meicheng Li
- North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, 2 Beinong Road, Changping District, Beijing, 102206, China
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4
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Tingare YS, Su C, Hsu YC, Lai NW, Wang WC, Lin XC, Lai PW, Yang HY, Lew XR, Li WR. Organic-inorganic hybrid material for hole transport in inverted perovskite solar cells. CHEMSUSCHEM 2024; 17:e202301508. [PMID: 38280139 DOI: 10.1002/cssc.202301508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/12/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
Hole mobility is critical to the power conversion efficiencies of perovskite solar cells (PSCs). Organic small-molecule hole-transporting materials (HTMs) have attracted considerable interest in PSCs due to their structural flexibility and operational durability, but they suffer from modest hole mobility. On the other hand, inorganic HTMs with good hole mobility are inflexible in structural variation and exhibit unsatisfactory cell efficiency. In this study, a ligand BT28 and its zinc-based coordination complex BTZ30 were synthesized, characterized, and investigated as HTMs for PSC applications. The mixed-halide perovskites can be grown uniformly with large crystalline grains on both HTMs, which exhibit similar optical and electrochemical properties. However, it was discovered that the BTZ30-based solar cell exhibited an open-circuit voltage of 1.0817 V and a high short-circuit current density of 23.1392 mA cm-2 with a champion power conversion efficiency of close to 20 %. The performance difference between the two HTMs can be attributed to the difference in their hole mobilities, which is 63.31 % higher for BTZ30 than BT28. The comparison of non-metal and metal HTMs revealed the importance of considering hybrid structures to overcome some shortcomings associated with organic and inorganic HTMs and achieve high-performance PSCs.
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Affiliation(s)
- Yogesh S Tingare
- Institute of Organic and Polymeric Materials/Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106344, Taiwan
| | - Chaochin Su
- Institute of Organic and Polymeric Materials/Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106344, Taiwan
| | - Ya-Chun Hsu
- Institute of Organic and Polymeric Materials/Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106344, Taiwan
| | - Ning-Wei Lai
- Institute of Organic and Polymeric Materials/Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106344, Taiwan
| | - Wan-Chun Wang
- Department of Chemistry, National Central University, Zhongli, 32001, Taiwan
| | - Xiang-Ching Lin
- Department of Chemistry, National Central University, Zhongli, 32001, Taiwan
| | - Penh-Wen Lai
- Institute of Organic and Polymeric Materials/Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106344, Taiwan
| | - Hsuan-Yu Yang
- Department of Chemistry, National Central University, Zhongli, 32001, Taiwan
| | - Xin-Rui Lew
- Department of Chemistry, National Central University, Zhongli, 32001, Taiwan
| | - Wen-Ren Li
- Department of Chemistry, National Central University, Zhongli, 32001, Taiwan
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5
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Zhang X, Liu X, Tirani FF, Ding B, Chen J, Rahim G, Han M, Zhang K, Zhou Y, Quan H, Li B, Du W, Brooks KG, Dai S, Fei Z, Asiri AM, Dyson PJ, Nazeeruddin MK, Ding Y. Dopant-Free Pyrene-Based Hole Transporting Material Enables Efficient and Stable Perovskite Solar Cells. Angew Chem Int Ed Engl 2024; 63:e202320152. [PMID: 38437457 DOI: 10.1002/anie.202320152] [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: 12/28/2023] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/06/2024]
Abstract
Dopant-free hole transporting materials (HTMs) is significant to the stability of perovskite solar cells (PSCs). Here, we developed a novel star-shape arylamine HTM, termed Py-DB, with a pyrene core and carbon-carbon double bonds as the bridge units. Compared to the reference HTM (termed Py-C), the extension of the planar conjugation backbone endows Py-DB with typical intermolecular π-π stacking interactions and excellent solubility, resulting in improved hole mobility and film morphology. In addition, the lower HOMO energy level of the Py-DB HTM provides efficient hole extraction with reduced energy loss at the perovskite/HTM interface. Consequently, an impressive power conversion efficiency (PCE) of 24.33 % was achieved for dopant-free Py-DB-based PSCs, which is the highest PCE for dopant-free small molecular HTMs in n-i-p configured PSCs. The dopant-free Py-DB-based device also exhibits improved long-term stability, retaining over 90 % of its initial efficiency after 1000 h exposure to 25 % humidity at 60 °C. These findings provide valuable insights and approaches for the further development of dopant-free HTMs for efficient and reliable PSCs.
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Affiliation(s)
- Xianfu Zhang
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
| | - Xuepeng Liu
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Farzaneh Fadaei Tirani
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
| | - Bin Ding
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
| | - Jianlin Chen
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Ghadari Rahim
- Computational Chemistry Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 5166616471, Iran
| | - Mingyuan Han
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Kai Zhang
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Ying Zhou
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Hongyang Quan
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Botong Li
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Weilun Du
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Keith G Brooks
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
| | - Songyuan Dai
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
| | - Zhaofu Fei
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Paul J Dyson
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
| | - Mohammad Khaja Nazeeruddin
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
- Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Yong Ding
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, China
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), CH 1015, Lausanne, Switzerland
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6
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Peng D, Xia Z, Wang H, Chen C, Zhai M, Tian Y, Cheng M. An efficient asymmetric structured hole transport material for perovskite solar cells. Chem Commun (Camb) 2024; 60:2665-2668. [PMID: 38351848 DOI: 10.1039/d4cc00004h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Hole transport materials (HTMs) play a crucial role in achieving efficient perovskite solar cells (PSCs). In this work, an HTM MF-ACD with an asymmetric structure is designed by introducing two different peripheral end groups. The asymmetric feature increases the molecular dipole of MF-ACD, and endows MF-ACD with good stability and film formation properties, higher hole mobility and conductivity. Consequently, the MF-ACD-based PSC shows a high efficiency of 23.1%, which is much higher than that of the symmetric counterpart. The results show that the asymmetric configuration might be a potential choice to develop more efficient HTMs.
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Affiliation(s)
- Dan Peng
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Ziyang Xia
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Haoxin Wang
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Cheng Chen
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Mengde Zhai
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Yi Tian
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Ming Cheng
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
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7
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Zhang H, Yu X, Li M, Zhang Z, Song Z, Zong X, Duan G, Zhang W, Chen C, Zhang WH, Liu Y, Liang M. Benzothieno[3,2-b]thiophene-Based Noncovalent Conformational Lock Achieves Perovskite Solar Cells with Efficiency over 24. Angew Chem Int Ed Engl 2023; 62:e202314270. [PMID: 37969041 DOI: 10.1002/anie.202314270] [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: 09/25/2023] [Revised: 11/06/2023] [Accepted: 11/15/2023] [Indexed: 11/17/2023]
Abstract
Organic semiconductors with noncovalently conformational locks (OSNCs) are promising building blocks for hole-transporting materials (HTMs). However, lack of satisfied neighboring building blocks negatively impacts the optoelectronic properties of OSNCs-based HTMs and imperils the stability of perovskite solar cells (PSCs). To address this limitation, we introduce the benzothieno[3,2-b]thiophene (BTT) to construct a new OSNC, and the resulting HTM ZS13 shows improved intermolecular charge extraction/transport properties, proper energy level, efficient surface passivation effect. Consequently, the champion devices based on doped ZS13 yield an efficiency of 24.39 % and 20.95 % for aperture areas of 0.1 and 1.01 cm2 , respectively. Furthermore, ZS13 shows good thermal stability and the capability of inhibiting I- ion migration, thus, leading to enhanced device stability. The success in neighboring-group engineering can triggered a strong interest in developing thienoacene-based OSNCs toward efficient and stable PSCs.
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Affiliation(s)
- Heng Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion Institution, Department of Applied Chemistry, Tianjin University of Technology, Tianjin, 300384, China
| | - Xin Yu
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Mengjia Li
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin, 300130, P. R. China
| | - Zuolin Zhang
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin, 300130, P. R. China
| | - Zonglong Song
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xueping Zong
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion Institution, Department of Applied Chemistry, Tianjin University of Technology, Tianjin, 300384, China
| | - Gongtao Duan
- Institute of Photovoltaic, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Wenfeng Zhang
- Institute of Photovoltaic, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Cong Chen
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin, 300130, P. R. China
| | - Wen-Hua Zhang
- Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, School of Materials and Energy, Yunnan University, Kunming, 650500, China
| | - Yongsheng Liu
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Mao Liang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion Institution, Department of Applied Chemistry, Tianjin University of Technology, Tianjin, 300384, China
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8
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Jiang X, Yang G, Zhang B, Wang L, Yin Y, Zhang F, Yu S, Liu S, Bu H, Zhou Z, Sun L, Pang S, Guo X. Understanding the Role of Fluorine Groups in Passivating Defects for Perovskite Solar Cells. Angew Chem Int Ed Engl 2023; 62:e202313133. [PMID: 37735100 DOI: 10.1002/anie.202313133] [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: 09/05/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 09/23/2023]
Abstract
Introducing fluorine (F) groups into a passivator plays an important role in enhancing the defect passivation effect for the perovskite film, which is usually attributed to the direct interaction of F and defect states. However, the interaction between electronegative F and electron-rich passivation groups in the same molecule, which may influence the passivation effect, is ignored. We herein report that such interactions can vary the electron cloud distribution around the passivation groups and thus changing their coordination with defect sites. By comparing two fluorinated molecules, heptafluorobutylamine (HFBM) and heptafluorobutyric acid (HFBA), we find that the F/-NH2 interaction in HFBM is stronger than the F/-COOH one in HFBA, inducing weaker passivation ability of HFBM than HFBA. Accordingly, HFBA-based perovskite solar cells (PSCs) provide an efficiency of 24.70 % with excellent long-term stability. Moreover, the efficiency of a large-area perovskite module (14.0 cm2 ) based on HFBA reaches 21.13 %. Our work offers an insight into understanding an unaware role of the F group in impacting the passivation effect for the perovskite film.
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Affiliation(s)
- Xiaoqing Jiang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Guangyue Yang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Bingqian Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Linqin Wang
- Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou, 310024, Zhejiang, China
| | - Yanfeng Yin
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Fengshan Zhang
- Shandong Huatai Paper Co., Ltd. & Shandong Yellow Triangle Biotechnology Industry Research Institute Co. LTD, Dongying, 257335, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Shiwei Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Hongkai Bu
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Zhongmin Zhou
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Licheng Sun
- Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou, 310024, Zhejiang, China
| | - Shuping Pang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
| | - Xin Guo
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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Ma Y, Han G, Yang M, Guo M, Xiao Y, Guo Y, Hou W. Inhibiting Li + migration by thenoyltrifluoroacetone toward efficient and stable perovskite solar cells. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02460h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Thenoyltrifluoroacetone (TTA) modifies the perovskite/spiro-OMeTAD interface to inhibit Li+ migration from the hole transport layer to the perovskite layer and improves the performance of perovskite solar cells.
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