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Li F, Wu D, Shang L, Xia R, Zhang H, Huang Z, Gong J, Mao L, Zhang H, Sun Y, Yang T, Sun X, Feng Z, Liu M. Highly Efficient Monolithic Perovskite/Perovskite/Silicon Triple-Junction Solar Cells. Adv Mater 2024; 36:e2311595. [PMID: 38190828 DOI: 10.1002/adma.202311595] [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: 11/02/2023] [Revised: 12/18/2023] [Indexed: 01/10/2024]
Abstract
Wide-bandgap metal halide perovskites have demonstrated promise in multijunction photovoltaic (PV) cells. However, photoinduced phase segregation and the resultant low open-circuit voltage (Voc) have greatly limited the PV performance of perovskite-based multijunction devices. Here, a alloying strategy is reported to achieve uniform distribution of triple cations and halides in wide-bandgap perovskites by doping Rb+ and Cl- with small ionic radii, which effectively suppresses halide phase segregation while promoting the homogenization of surface potential. Based on this strategy, a Voc of 1.33 V is obtained from single-junction perovskite solar cells, and a VOC approaching 3.0 V and a power conversion efficiency of 25.0% (obtained from reverse scan direction, certified efficiency: 24.19%) on an 1.04 cm2 photoactive area can be achieved in a perovskite/perovskite/c-Si triple-junction tandem cell, where the certification efficiency is by far the greatest performance of perovskite-based triple-junction tandem solar cells. This work overcomes the performance deadlock of perovskite-based triple-junction tandem cells by setting a materials-by-design paradigm.
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Affiliation(s)
- Faming Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Dan Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Le Shang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Rui Xia
- State Key Laboratory of PV Science and Technology, Trina Solar, ChangZhou, 213031, P. R. China
| | - Hengrui Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Zhengxin Huang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Jue Gong
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Lin Mao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Hao Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Yinqing Sun
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Tian Yang
- Sichuan Research Center of New Materials, National Energy Novel Materials Center, Institute of Chemical Materials, China Academy of Engineering Physics, Chengdu, 610200, P. R. China
| | - Xianggang Sun
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Zhiqiang Feng
- State Key Laboratory of PV Science and Technology, Trina Solar, ChangZhou, 213031, P. R. China
| | - Mingzhen Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
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