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Stable 24.29%‐Efficiency FA~0.85~MA~0.15~PbI~3~ Perovskite Solar Cells Enabled by Methyl Haloacetate‐Lead Dimer Complex by Sheng Zhan; Yuwei Duan; Zhike Liu; Lu Yang; Kun He; Yuhang Che; Wenjing Zhao; Yu Han; Shaomin Yang; Guangtao Zhao; Ningyi Yuan; Jianning Ding; Shengzhong (Frank) Liu is a Engineering article available to read on EtoBox.
What is Stable 24.29%‐Efficiency FA~0.85~MA~0.15~PbI~3~ Perovskite Solar Cells Enabled by Methyl Haloacetate‐Lead Dimer Complex about?
has made a remarkable breakthrough from 3.8% in 2009 to a certified value over 25.5% in 2021. [4][5][6] The remarkable high PCE of hybrid PSCs relies on the unique advantages of perovskite materials (high light-absorption coefficient, [7] broad lightabsorption range, [8] fast charge-carrier mobility, [9] long diffusion length, [10] tunable bandgap, [11] small exciton binding energy, [12] etc.) and effective structural and surface modifications (compositional engineering, interfacial passivation, additive engineering, etc.). [13][14][15][16] Perovskites based on FA x MA 1-x PbI 3 (FA, formamidinium; MA, methylammonium) have been widely applied in hybrid PSCs due to their lower bandgap and higher solar light-harvesting efficiency in contrast to MAPbI 3 . [17][18][19][20][21] Compared with FAPbI 3 , partial substitution of FA (ionic radius = 2.79 Å) with MA (ionic radius = 2.17 Å) could improve the stability of hybrid PSCs due to the reduced tolerance factor to the appropriate range (0.8-1). [22,23] However, the low-boilingpoint MA cations easily escape from the perovskite lattice during the device fabrication process, and the large FA cations are impeded from embedding into the MA va
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- Author
- Sheng Zhan; Yuwei Duan; Zhike Liu; Lu Yang; Kun He; Yuhang Che; Wenjing Zhao; Yu Han; Shaomin Yang; Guangtao Zhao; Ningyi Yuan; Jianning Ding; Shengzhong (Frank) Liu
- Publisher
- Wiley
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)