Selective grain boundary passivation by ammonium nitrate for enhanced performance and stability of FA-Cs based perovskite solar cells

Xiaoshan Li; Wenjing Yu; Tian Hou; Xin Yang; Xin Wang; Guangmian Jiang; Zhipeng Fu; Kaipeng Chen; Yanlin Li; Chengbin Yang; Xiaoran Sun; Meng Zhang

doi:10.1039/D3CC05504C

Selective grain boundary passivation by ammonium nitrate for enhanced performance and stability of FA-Cs based perovskite solar cells†

Xiaoshan Li,‡^a Wenjing Yu,‡^ab Tian Hou,^a Xin Yang,^a Xin Wang,^a Guangmian Jiang,^a Zhipeng Fu,^a Kaipeng Chen,^a Yanlin Li,^a Chengbin Yang,^a Xiaoran Sun*^a and Meng Zhang

*^ac

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* Corresponding authors

^a School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu, China
E-mail: xiaoran.sun@swpu.edu.cn

^b Sichuan Shale Gas Project Management Department, CNPC Bohai Drilling Engineering Co. Ltd., Chengdu 610057, China

^c The Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
E-mail: meng.zhang@unsw.edu.au

Abstract

Grain boundaries of metal halide perovskites contain massive defects that are detrimental to photovoltaics applications. This work demonstrates that inorganic NH₄NO₃ can selectively passivate the grain boundaries of perovskite films and improve their moisture resistance simultaneously, resulting in enhanced performance and stability of the methylammonium-free perovskite solar cells.

Chemical Communications

Selective grain boundary passivation by ammonium nitrate for enhanced performance and stability of FA-Cs based perovskite solar cells†

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Selective grain boundary passivation by ammonium nitrate for enhanced performance and stability of FA-Cs based perovskite solar cells

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