DataVXAdvanced Functional MaterialsPaper
journal article·2024-02

Imidazole Derivative Assisted Crystallization for High‐Efficiency Mixed Sn–Pb Perovskite Solar Cells

Bingxu Liu, Haoyu Chen, Jiupeng Cao, Xianglin Chen, Jiankai Xie, Yuting Shu, Feng Yan, Wei Huang, Tianshi Qin

Advanced Functional Materials· Volume 34· Issue 6
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Source abstract

Abstract

Abstract Mixed Sn–Pb perovskites with narrow bandgaps and high optical absorption coefficients are promising photovoltaic materials. However, the easy oxidation of Sn2+ and fast crystallization of mixed Sn–Pb perovskites still limit the efficiency of mixed Sn–Pb perovskite solar cells (PSCs). Here, an imidazole derivative 2‐(Aminomethyl)imidazole dihydrochloride (2‐AD) to suppress the oxidation of Sn2+ and improve the perovskite film quality through coordination with Sn2+/Pb2+ ions is introduced. The optimized devices show a high power conversion efficiency of 22.31% with outstanding long‐term illumination stability. This work provides an effective strategy to achieve efficient and stable mixed Sn–Pb PSCs.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research

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

Affiliations

Institute of Advanced Materials (IAM) & Key Laboratory of Flexible Electronics (KLoFE) School of Flexible Electronics (Future Technologies) Nanjing Tech University (Nanjing Tech) Nanjing 211816 China

Department of Applied Physics The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong SAR P. R. China

School of Flexible Electronics (SoFE) & State Key Laboratory of Optoelectronic Materials and Technologies (OEMT) Sun Yat‐sen University Shenzhen 518107 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Hong Kong Polytechnic University

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