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Can I read Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI2Br Solar Cells on EtoBox?
Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI2Br Solar Cells by Jie Xu; Jian Cui; Shaomin Yang; Yu Han; Xi Guo; Yuhang Che; Dongfang Xu; Chenyang Duan; Wenjing Zhao; Kunpeng Guo; Wanli Ma; Baomin Xu; Jianxi Yao; Zhike Liu; Shengzhong Liu is a Engineering article available to read on EtoBox.
What is Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI2Br Solar Cells about?
## Abstract The application of ionic liquids in perovskite has attracted wide-spread attention for its astounding performance improvement of perovskite solar cells (PSCs). However, the detailed mechanisms behind the improvement remain mysterious. Herein, a series of imidazolium-based ionic liquids (IILs) with different cations and anions is systematically investigated to elucidate the passivation mechanism of IILs on inorganic perovskites. It is found that IILs display the following advantages: (1) They form ionic bonds with Cs^+^ and Pb^2+^ cations on the surface and at the grain boundaries of perovskite films, which could effectively heal/reduce the Cs^+^/I^−^ vacancies and Pb-related defects; (2) They serve as a bridge between the perovskite and the hole-transport-layer for effective charge extraction and transfer; and (3) They increase the hydrophobicity of the perovskite surface to further improve the stability of the CsPbI~2~Br PSCs. The combination of the above effects results in suppressed non-radiative recombination loss in CsPbI~2~Br PSCs and an impressive power conversion efficiency of 17.02%. Additionally, the CsPbI~2~Br PSCs with IILs surface modification exhibited imp
Who reads Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI2Br Solar Cells?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Jie Xu; Jian Cui; Shaomin Yang; Yu Han; Xi Guo; Yuhang Che; Dongfang Xu; Chenyang Duan; Wenjing Zhao; Kunpeng Guo; Wanli Ma; Baomin Xu; Jianxi Yao; Zhike Liu; Shengzhong Liu
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)