Avoiding Structural Collapse to Reduce Lead Leakage in Perovskite Photovoltaics

Xueyuan Wei; Mengqi Xiao; Boyu Wang; Chenyue Wang; Yuekang Li; Jing Dou; Zhenhua Cui; Jie Dou; Hailiang Wang; Sai Ma; Cheng Zhu; Guizhou Yuan; Ning Yang; Tinglu Song; Huanping Zhou; Haining Chen; Yang Bai; Qi Chen

doi:10.1002/anie.202204314

Avoiding Structural Collapse to Reduce Lead Leakage in Perovskite Photovoltaics

Xueyuan Wei, Mengqi Xiao, Boyu Wang, Chenyue Wang, Yuekang Li, Jing Dou, Zhenhua Cui, Jie Dou, Hailiang Wang, Sai Ma, Cheng Zhu, Guizhou Yuan, Ning Yang, Tinglu Song, Huanping Zhou, Haining Chen, Yang Bai^*, Qi Chen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Perovskite solar cells (PSCs) have become a promising candidate for the next-generation photovoltaic technologies. As an essential element for high-efficiency PSCs however, the heavy metal Pb is soluble in water, causing a serious threat to the environment and human health. Due to the weak ionic bonding in three-dimensional (3D) perovskites, drastic structure decomposition occurs when immersing the perovskite film in water, which accelerates the Pb leakage. By introducing the chemically stable Dion-Jacobson (DJ) 2D perovskite at the 3D perovskite surface, the film dissolution is significantly slowed down, which retards lead leakage. As a result, the Pb contamination is dramatically reduced under various extreme conditions. In addition, the PSCs device deliver a power conversion efficiency (PCE) of 23.6 % and retain over 95 % of their initial PCE after the maximum power point tracking for over 1100 h.

Original language	English
Article number	e202204314
Journal	Angewandte Chemie - International Edition
Volume	61
Issue number	27
DOIs	https://doi.org/10.1002/anie.202204314
Publication status	Published - 4 Jul 2022

Keywords

Dissolution Behaviour
Long-Term Stability
Pb Leakage
Perovskite Solar Cells
Structural Collapse

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/anie.202204314

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title = "Avoiding Structural Collapse to Reduce Lead Leakage in Perovskite Photovoltaics",

abstract = "Perovskite solar cells (PSCs) have become a promising candidate for the next-generation photovoltaic technologies. As an essential element for high-efficiency PSCs however, the heavy metal Pb is soluble in water, causing a serious threat to the environment and human health. Due to the weak ionic bonding in three-dimensional (3D) perovskites, drastic structure decomposition occurs when immersing the perovskite film in water, which accelerates the Pb leakage. By introducing the chemically stable Dion-Jacobson (DJ) 2D perovskite at the 3D perovskite surface, the film dissolution is significantly slowed down, which retards lead leakage. As a result, the Pb contamination is dramatically reduced under various extreme conditions. In addition, the PSCs device deliver a power conversion efficiency (PCE) of 23.6 % and retain over 95 % of their initial PCE after the maximum power point tracking for over 1100 h.",

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T1 - Avoiding Structural Collapse to Reduce Lead Leakage in Perovskite Photovoltaics

AU - Wei, Xueyuan

AU - Xiao, Mengqi

AU - Wang, Boyu

AU - Wang, Chenyue

AU - Li, Yuekang

AU - Dou, Jing

AU - Cui, Zhenhua

AU - Dou, Jie

AU - Wang, Hailiang

AU - Ma, Sai

AU - Zhu, Cheng

AU - Yuan, Guizhou

AU - Yang, Ning

AU - Song, Tinglu

AU - Zhou, Huanping

AU - Chen, Haining

AU - Bai, Yang

AU - Chen, Qi

PY - 2022/7/4

Y1 - 2022/7/4

N2 - Perovskite solar cells (PSCs) have become a promising candidate for the next-generation photovoltaic technologies. As an essential element for high-efficiency PSCs however, the heavy metal Pb is soluble in water, causing a serious threat to the environment and human health. Due to the weak ionic bonding in three-dimensional (3D) perovskites, drastic structure decomposition occurs when immersing the perovskite film in water, which accelerates the Pb leakage. By introducing the chemically stable Dion-Jacobson (DJ) 2D perovskite at the 3D perovskite surface, the film dissolution is significantly slowed down, which retards lead leakage. As a result, the Pb contamination is dramatically reduced under various extreme conditions. In addition, the PSCs device deliver a power conversion efficiency (PCE) of 23.6 % and retain over 95 % of their initial PCE after the maximum power point tracking for over 1100 h.

AB - Perovskite solar cells (PSCs) have become a promising candidate for the next-generation photovoltaic technologies. As an essential element for high-efficiency PSCs however, the heavy metal Pb is soluble in water, causing a serious threat to the environment and human health. Due to the weak ionic bonding in three-dimensional (3D) perovskites, drastic structure decomposition occurs when immersing the perovskite film in water, which accelerates the Pb leakage. By introducing the chemically stable Dion-Jacobson (DJ) 2D perovskite at the 3D perovskite surface, the film dissolution is significantly slowed down, which retards lead leakage. As a result, the Pb contamination is dramatically reduced under various extreme conditions. In addition, the PSCs device deliver a power conversion efficiency (PCE) of 23.6 % and retain over 95 % of their initial PCE after the maximum power point tracking for over 1100 h.

KW - Dissolution Behaviour

KW - Long-Term Stability

KW - Pb Leakage

KW - Perovskite Solar Cells

KW - Structural Collapse

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JO - Angewandte Chemie - International Edition

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ER -

Avoiding Structural Collapse to Reduce Lead Leakage in Perovskite Photovoltaics

Abstract

Keywords

UN SDGs

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