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

Chem Commun (Camb). 2023 May 25;59(43):6580-6583. doi: 10.1039/d3cc01379k.

Authors

Yu Wang^{1

2}, Jiaxing Song¹, Jingchuan Ye^{1

2}, Yingzhi Jin¹, Xinxing Yin¹, Zhen Su¹, Lin Hu¹, Yan Wu¹, Chufeng Qiu¹, Hao Wang¹, Wensheng Yan², Zaifang Li¹

Affiliations

¹ China-Australia Institute for Advanced Materials and Manufacturing, Jiaxing University, Jiaxing 314001, P. R. China. songjx@zjxu.edu.cn.
² Institute of Carbon Neutrality and New Energy, School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China. wensheng.yan@hdu.edu.cn.

PMID: 37183488
DOI: 10.1039/d3cc01379k

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.