Mutual stabilization of hybrid and inorganic perovskites for photovoltaics
Wuhan National Laboratory for Optoelectronics · Huazhong University of Science and Technology · +7 more institutions
Abstract
Stabilizing black-phase formamidinium lead triiodide (FAPbI 3 ) is critical for high-performance perovskite solar cells (PSCs). We present a stabilization strategy utilizing co-evaporated cesium lead iodide (CsPbI 3 ) capping layers. Enabled by favorable crystal lattice matching, cubic-phase CsPbI 3 spontaneously forms on FAPbI 3 surfaces, establishing mutual phase stabilization with the underlying black-phase FAPbI 3 . When combined with ammonium salt interface modification, the CsPbI 3 interlayer effectively suppresses the ion (FA + and F-PEA + ) diffusion between the stacked perovskite layers. The FAPbI 3 /CsPbI 3 bilayer structured devices exhibited a certified record reverse-scanning power-conversion…
Citation impact
- FWCI
- 24.79
- Percentile
- 100%
- References
- 45
Authors
14- YLYuheng Li
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- ZZZiwei Zheng
Hainan University
- XZXin Zheng
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- XLXiaoyuan Liu
Shantou University
- YYYingguo Yang
Fudan University, Shanghai Fudan Microelectronics (China)
Topics & keywords
- Photovoltaics
- Materials science
- Nanotechnology
- Photovoltaic system
- Engineering
- Electrical engineering
Funding
- NNNational Natural Science Foundation of ChinaAwards: 22209068, 22279039, 52302254, 52172200
- NKNational Key Research and Development Program of China
- NKNational Key Research and Development Program of China Stem Cell and Translational ResearchAward: 2022YFB4200305
- BABasic and Applied Basic Research Foundation of Guangdong ProvinceAward: 2025A1515012297