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Fabricate the Compressive-Strained Perovskite Solar Cells through the Lattice-Matching Chelation AITranslate

Gongtao Duan; Kai Zhang; Wenfeng Zhang; Hui Shu; Yingguo Yang; Xiangqing Zhou; Changjiang Liu; Lang Yu; Xin Yu; Yuelong Huang; Xiaojun Wu; Changtao Peng; Shangfeng Yang; Mao Liang; Wenhua Zhang; Hairen Tan;
Southwest Petroleum University; University of Science and Technology of China; Southwest Petroleum University; Southwest Petroleum University; Fudan University; Southwest Petroleum University; Southwest Petroleum University; Southwest Petroleum University; University of Science and Technology of China; Southwest Petroleum University; University of Science and Technology of China; Southwest Petroleum University; University of Science and Technology of China; Tianjin University of Technology; Yunnan University; Nanjing University
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Abstract AITranslate

Fabricating compressive-strained perovskite films can boost the efficiency and stability of perovskite solar cells (PSCs). However, compositional engineering toward the conversion of surface tension strain to compressive strain rarely succeeds. Herein, we propose an effective lattice-matching chelation strategy to modulate the strain of the crystal lattice of perovskite films. Detailed investigations show that the organic salt of bidentate imidazole (MZ-1) can firmly anchor the perovskite lattice, resulting in compressive-strained perovskite films, leading to better energy alignment, improved charge carrier transport, decreased nonradiative recombination, and lower trap state density. PSC based on MZ-1 exhibits a dramatically improved efficiency of 24.61% along with improved long-term thermal stability. Importantly, a large-area (25 cm2) integrated module achieves an efficiency of 20.53%.

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DOI：https://doi.org/10.1021/acsenergylett.3c00345

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Citation Information:

Fabricating compressive-strained perovskite films can boost the efficiency and stability of perovskite solar cells (PSCs). However, compositional engineering toward the conversion of surface tension strain to compressive strain rarely succeeds. Herein, we propose an effective lattice-matching chelation strategy to modulate the strain of the crystal lattice of perovskite films. Detailed investigations show that the organic salt of bidentate imidazole (MZ-1) can firmly anchor the perovskite lattice, resulting in compressive-strained perovskite films, leading to better energy alignment, improved charge carrier transport, decreased nonradiative recombination, and lower trap state density. PSC based on MZ-1 exhibits a dramatically improved efficiency of 24.61% along with improved long-term thermal stability. Importantly, a large-area (25 cm2) integrated module achieves an efficiency of 20.53%.

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GB/T 7714-2015 [1] Gongtao Duan, Kai Zhang, Wenfeng Zhang, et al. ACS Energy Letters, 2023(8). DOI:10.1021/acsenergylett.3c00345.
MLA [1] Gongtao Duan, et al., ACS Energy Letters, no. 8, 2023, https://doi.org/10.1021/acsenergylett.3c00345.
APA [1] Gongtao Duan, Kai Zhang, Wenfeng Zhang, Hui Shu, Yingguo Yang, Xiangqing Zhou, Changjiang Liu, Lang Yu, Xin Yu, Yuelong Huang, Xiaojun Wu, Changtao Peng, Shangfeng Yang, Mao Liang, Wenhua Zhang, & Hairen Tan. (2023). ACS Energy Letters(8). https://doi.org/10.1021/acsenergylett.3c00345
IEEE [1] Gongtao Duan, Kai Zhang, Wenfeng Zhang, Hui Shu, Yingguo Yang, Xiangqing Zhou, Changjiang Liu, Lang Yu, Xin Yu, Yuelong Huang, Xiaojun Wu, Changtao Peng, Shangfeng Yang, Mao Liang, Wenhua Zhang, and Hairen Tan, ACS Energy Letters, no. 8, 2023, doi: 10.1021/acsenergylett.3c00345.