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Perovskite Solar Cells Based on Compact, Smooth FA_0.1MA_0.9PbI₃ Film with Efficiency Exceeding 22.

ABSTRACT: The utilization of mixed cations is beneficial for taking the advantages of cations and achieving highly efficient perovskite solar cells (PSCs). Herein, the precisely small incorporation of CH(NH₂)₂ (FA) cations in methyl ammonium lead iodide (MAPbI₃) enables the formation of compact, smooth perovskite film with high crystallinity. Consequently, the short-circuit current and the fill factor of the PSCs based on FA_xMA_1-xPbI₃ perovskite are greatly improved, leading to the enhanced device efficiency. The champion PSC based on FA_0.1MA_0.9PbI₃ exhibits a remarkably high efficiency of 22.02%. Furthermore, the PSCs based on FA_0.1MA_0.9PbI₃ perovskite also show improved device stability. This work provides a simple approach to fabricate high-quality perovskite films and high-performance PSCs with better stability.

SUBMITTER: Maqsood A

PROVIDER: S-EPMC7174521 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Perovskite Solar Cells Based on Compact, Smooth FA0.1MA0.9PbI3 Film with Efficiency Exceeding 22.

Maqsood Ayman A Li Yaoyao Y Meng Juan J Song Dandan D Qiao Bo B Zhao Suling S Xu Zheng Z

Nanoscale research letters 20200421 1

The utilization of mixed cations is beneficial for taking the advantages of cations and achieving highly efficient perovskite solar cells (PSCs). Herein, the precisely small incorporation of CH(NH2)2 (FA) cations in methyl ammonium lead iodide (MAPbI3) enables the formation of compact, smooth perovskite film with high crystallinity. Consequently, the short-circuit current and the fill factor of the PSCs based on FAxMA1-xPbI3 perov ...[more]

PMID: 32318866

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