Ligand‐Modulated Excess PbI<sub>2</sub> Nanosheets for Highly Efficient and Stable Perovskite Solar Cells

Wang, Huanhuan; Wang, Zaiwei; Yang, Zhen; Xu, Yuzeng; Ding, Yi; Tan, Liguo; Yi, Chenyi; Zhang, Zhuang; Meng, Ke; Chen, Gang; Zhao, Ying; Luo, Yongsong; Zhang, Xiaodan; Hagfeldt, Anders; Luo, Jingshan

doi:10.1002/adma.202000865

Public

Ligand‐Modulated Excess PbI2 Nanosheets for Highly Efficient and Stable Perovskite Solar Cells

Published in Advanced Materials • Apr 13, 2020

Authors:

Huanhuan Wang

Zaiwei Wang

Zhen Yang

Abstract

Abstract Excess lead iodide (PbI 2 ), as a defect passivation material in perovskite films, contributes to the longer carrier lifetime and reduced halide vacancies for high‐efficiency perovskite solar cells. However, the random distribution of excess PbI 2 also leads to accelerated degradation of th...

Subject

Perovskite (structure)

Materials science

Passivation

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