Molecular Ferroelectric with Directional Polarization Field for Efficient Tin-Based Perovskite Solar Cells

被引:9
作者
Chang, Bohong [1 ]
Li, Hui [1 ]
Wang, Lian [1 ]
Pan, Lu [1 ]
Wu, Yutong [1 ]
Liu, Zhen [1 ]
Yin, Longwei [1 ]
机构
[1] Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China
基金
中国国家自然科学基金;
关键词
2-methylbenzimidazole; FASnI3; ferroelectrics; perovskite solar cells; polarization; ROOM-TEMPERATURE FERROELECTRICITY; PROBE FORCE MICROSCOPY; PASSIVATION STRATEGIES; DEFECT PASSIVATION; LEAD;
D O I
10.1002/adfm.202305852
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Due to the relatively inferior dielectric constant, Sn-based perovskites exhibit lower defect tolerance and insufficient dielectric shielding effect compared with Pb-perovskites. Upgrading built-in electric field (BEF) in Sn-based perovskite solar cells (PSCs) can be effective to reduce large voltage deficit and improve poor performance caused by the low defect tolerance resulting from the intrinsic inferior dielectric of Sn-based perovskites. Herein, 2-methylbenzimidazole (MBI) molecular ferroelectric with low coercive field and high Curie-temperature is introduced to construct an additional ferroelectric field in FASnI(3)-based PSCs. The ferroelectric effect of MBI can promote exciton dissociation, enhance carrier population, and suppress the adverse effect of the residual defects on carriers, and the directional polarization of MBI in FASnI(3) film can be driven by the BEF in PSCs to broaden the width of depletion region. Additionally, the MBI molecules with amine functional groups effectively regulate perovskite crystallization, passivate Sn-related defects, and enhance the oxidation barrier. Profiting from the above advantages, the MBI-modified device achieves a champion power conversion efficiency (PCE) of 12.91%, keeping over 94% average PCE after 1056 h in N-2 glovebox for the unencapsulated device. This study highlights the significant role of molecular ferroelectrics in perovskite photovoltaics.
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页数:10
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共 60 条
[41]   Emerging Perovskite Solar Cell Technology: Remedial Actions for the Foremost Challenges [J].
Sahare, Sanjay ;
Pham, Hong Duc ;
Angmo, Dechan ;
Ghoderao, Prachi ;
MacLeod, Jennifer ;
Khan, Sadaf Bashir ;
Lee, Shern-Long ;
Singh, Samareandra P. ;
Sonar, Prashant .
ADVANCED ENERGY MATERIALS, 2021, 11 (42)
[42]   Surface passivation of perovskite layers using heterocyclic halides: Improved photovoltaic properties and intrinsic stability [J].
Salado, Manuel ;
Jodlowski, Alexander D. ;
Roldan-Carmona, Cristina ;
de Miguel, Gustavo ;
Kazim, Samrana ;
Nazeeruddin, Mohammad Khaja ;
Ahmad, Shahzada .
NANO ENERGY, 2018, 50 :220-228
[43]   Suppression of the interface-dependent nonradiative recombination by using 2-methylbenzimidazole as interlayer for highly efficient and stable perovskite solar cells [J].
Sonmezoglu, Savas ;
Akin, Seckin .
NANO ENERGY, 2020, 76
[44]   Dielectric screening in perovskite photovoltaics [J].
Su, Rui ;
Xu, Zhaojian ;
Wu, Jiang ;
Luo, Deying ;
Hu, Qin ;
Yang, Wenqiang ;
Yang, Xiaoyu ;
Zhang, Ruopeng ;
Yu, Hongyu ;
Russell, Thomas P. ;
Gong, Qihuang ;
Zhang, Wei ;
Zhu, Rui .
NATURE COMMUNICATIONS, 2021, 12 (01)
[45]   Acetic Acid-Assisted Synergistic Modulation of Crystallization Kinetics and Inhibition of Sn2+ Oxidation in Tin-Based Perovskite Solar Cells [J].
Su, Yang ;
Yang, Jia ;
Liu, Gengling ;
Sheng, Wangping ;
Zhang, Jiaqi ;
Zhong, Yang ;
Tan, Licheng ;
Chen, Yiwang .
ADVANCED FUNCTIONAL MATERIALS, 2022, 32 (12)
[46]   Polarization switching in single crystals and films of 2-methylbenzimidazole [J].
Svinarev, F. B. ;
Balashova, E. V. ;
Pankova, G. A. ;
Krichevtsov, B. B. .
INTERNATIONAL CONFERENCE PHYSICA.SPB/2017, 2018, 1038
[47]   Self-Repairing Tin-Based Perovskite Solar Cells with a Breakthrough Efficiency Over 11% [J].
Wang, Chengbo ;
Gu, Feidan ;
Zhao, Ziran ;
Rao, Haixia ;
Qiu, Yaming ;
Cai, Zelun ;
Zhan, Ge ;
Li, Xiaoyue ;
Sun, Boxun ;
Yu, Xiao ;
Zhao, Boqin ;
Liu, Zhiwei ;
Bian, Zuqiang ;
Huang, Chunhui .
ADVANCED MATERIALS, 2020, 32 (31)
[48]   PbTiO3 as Electron-Selective Layer for High-Efficiency Perovskite Solar Cells: Enhanced Electron Extraction via Tunable Ferroelectric Polarization [J].
Wang, Ming-Zi ;
Feng, Hong-Jian ;
Qian, Chong-Xin ;
He, Jiawei ;
Feng, Jiangshan ;
Cao, Yong-Hua ;
Yang, Kang ;
Deng, Zun-Yi ;
Yang, Zhou ;
Yao, Xi ;
Zhou, Jianping ;
Liu, Shengzhong ;
Zeng, Xiao Cheng .
ADVANCED FUNCTIONAL MATERIALS, 2019, 29 (01)
[49]   Precise Functionalization of a Multiple-Resonance Framework: Constructing Narrowband Organic Electroluminescent Materials with External Quantum Efficiency over 40% [J].
Wang, Qingyang ;
Xu, Yincai ;
Yang, Tong ;
Xue, Jianan ;
Wang, Yue .
ADVANCED MATERIALS, 2023, 35 (03)
[50]   Fullerene Polymer Complex Inducing Dipole Electric Field for Stable Perovskite Solar Cells [J].
Wu, Congcong ;
Wang, Kai ;
Yan, Yongke ;
Yang, Dong ;
Jiang, Yuanyuan ;
Chi, Bo ;
Liu, Jianzhao ;
Esker, Alan R. ;
Rowe, Jennifer ;
Morris, Amanda J. ;
Sanghadasa, Mohan ;
Priya, Shashank .
ADVANCED FUNCTIONAL MATERIALS, 2019, 29 (12)