Surface termination passivation of imidazole-based diiodide enabling efficient inverted perovskite solar cells

Yu Wang; Jiaxing Song; Jingchuan Ye; Yingzhi Jin; Xinxing Yin; Zhen Su; Lin Hu; Yan Wu; Chufeng Qiu; Hao Wang; Wensheng Yan; Zaifang Li

doi:10.1039/D3CC01379K

Surface termination passivation of imidazole-based diiodide enabling efficient inverted perovskite solar cells†

Yu Wang,^ab Jiaxing Song,

*^a Jingchuan Ye,^ab Yingzhi Jin,^a Xinxing Yin,

^a Zhen Su,^a Lin Hu,

^a Yan Wu,^a Chufeng Qiu,^a Hao Wang,^a Wensheng Yan*^b and Zaifang Li

*^a

Author affiliations

* Corresponding authors

^a China-Australia Institute for Advanced Materials and Manufacturing, Jiaxing University, Jiaxing 314001, P. R. China
E-mail: songjx@zjxu.edu.cn, zaifang.li@zjxu.edu.cn

^b Institute of Carbon Neutrality and New Energy, School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, China
E-mail: wensheng.yan@hdu.edu.cn

Abstract

N-(3-aminopropyl)-imidazole diiodide (APDI) was introduced on the upper surface of the perovskite for the first time to modulate the terminal groups. The defect traps were suppressed by binding N cations from the APDI with Pb²⁺. Consequently, the optimum APDI-treated device achieved a PCE of 21.41% and exhibited excellent stability.

This article is part of the themed collection: Perovskites

Chemical Communications

Surface termination passivation of imidazole-based diiodide enabling efficient inverted perovskite solar cells†

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Surface termination passivation of imidazole-based diiodide enabling efficient inverted perovskite solar cells

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