journal article·2023-05-12

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

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, Wen-hua Zhang, Hairen Tan

ACS Energy Letters· Volume 8· Issue 5
Publisher page

Abstract

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 cm 2 ) integrated module achieves an efficiency of 20.53%.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China

Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China

School of Microelectronics, Fudan University, Shanghai 200433, China

Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China

Yunnan Key Laboratory of Carbon Neutrality and Green Low-Carbon Technologies, School of Materials and Energy, Yunnan University, Kunming 650500, China

The College of Engineering and Applied Sciences (CEAS), Nanjing University, Nanjing 210023, China

Funding

Department of Science and Technology of Sichuan Province · National Natural Science Foundation of China · Anhui Province

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