Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate

Jing Dou; Yue Ma; Xiuxiu Niu; Wentao Zhou; Xueyuan Wei; Jie Dou; Zhenhua Cui; Qizhen Song; Tinglu Song; Huanping Zhou; Cheng Zhu; Yang Bai; Qi Chen

doi:10.1016/j.jechem.2023.09.008

Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate

Jing Dou, Yue Ma, Xiuxiu Niu, Wentao Zhou, Xueyuan Wei, Jie Dou, Zhenhua Cui, Qizhen Song, Tinglu Song, Huanping Zhou, Cheng Zhu, Yang Bai^*, Qi Chen

^*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

Perovskite solar cell has gained widespread attention as a promising technology for renewable energy. However, their commercial viability has been hampered by their long-term stability and potential Pb leakage. Herein, we demonstrate a bifunctional passivator of the potassium tartrate (PT) to address both challenges. PT minimizes the Pb leakage in perovskites and also heals cationic vacancy defects, resulting in improved device performance and stability. Benefiting from PT modification, the power conversion efficiency (PCE) is improved to 23.26% and the Pb leakage in unencapsulated films is significantly reduced to 9.79 ppm. Furthermore, the corresponding device exhibits no significant decay in PCE after tracking at the maximum power point (MPP) for 2000 h under illumination (LED source, 100 mW cm⁻²).

Original language	English
Pages (from-to)	64-70
Number of pages	7
Journal	Journal of Energy Chemistry
Volume	88
DOIs	https://doi.org/10.1016/j.jechem.2023.09.008
Publication status	Published - Jan 2024

Keywords

Lead leakage
Long-term stability
Perovskite
Potassium tartrate

UN SDGs

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

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10.1016/j.jechem.2023.09.008

Cite this

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title = "Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate",

abstract = "Perovskite solar cell has gained widespread attention as a promising technology for renewable energy. However, their commercial viability has been hampered by their long-term stability and potential Pb leakage. Herein, we demonstrate a bifunctional passivator of the potassium tartrate (PT) to address both challenges. PT minimizes the Pb leakage in perovskites and also heals cationic vacancy defects, resulting in improved device performance and stability. Benefiting from PT modification, the power conversion efficiency (PCE) is improved to 23.26% and the Pb leakage in unencapsulated films is significantly reduced to 9.79 ppm. Furthermore, the corresponding device exhibits no significant decay in PCE after tracking at the maximum power point (MPP) for 2000 h under illumination (LED source, 100 mW cm−2).",

keywords = "Lead leakage, Long-term stability, Perovskite, Potassium tartrate",

author = "Jing Dou and Yue Ma and Xiuxiu Niu and Wentao Zhou and Xueyuan Wei and Jie Dou and Zhenhua Cui and Qizhen Song and Tinglu Song and Huanping Zhou and Cheng Zhu and Yang Bai and Qi Chen",

note = "Publisher Copyright: {\textcopyright} 2023 Science Press",

year = "2024",

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doi = "10.1016/j.jechem.2023.09.008",

language = "English",

volume = "88",

pages = "64--70",

journal = "Journal of Energy Chemistry",

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TY - JOUR

T1 - Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate

AU - Dou, Jing

AU - Ma, Yue

AU - Niu, Xiuxiu

AU - Zhou, Wentao

AU - Wei, Xueyuan

AU - Dou, Jie

AU - Cui, Zhenhua

AU - Song, Qizhen

AU - Song, Tinglu

AU - Zhou, Huanping

AU - Zhu, Cheng

AU - Bai, Yang

AU - Chen, Qi

PY - 2024/1

Y1 - 2024/1

N2 - Perovskite solar cell has gained widespread attention as a promising technology for renewable energy. However, their commercial viability has been hampered by their long-term stability and potential Pb leakage. Herein, we demonstrate a bifunctional passivator of the potassium tartrate (PT) to address both challenges. PT minimizes the Pb leakage in perovskites and also heals cationic vacancy defects, resulting in improved device performance and stability. Benefiting from PT modification, the power conversion efficiency (PCE) is improved to 23.26% and the Pb leakage in unencapsulated films is significantly reduced to 9.79 ppm. Furthermore, the corresponding device exhibits no significant decay in PCE after tracking at the maximum power point (MPP) for 2000 h under illumination (LED source, 100 mW cm−2).

AB - Perovskite solar cell has gained widespread attention as a promising technology for renewable energy. However, their commercial viability has been hampered by their long-term stability and potential Pb leakage. Herein, we demonstrate a bifunctional passivator of the potassium tartrate (PT) to address both challenges. PT minimizes the Pb leakage in perovskites and also heals cationic vacancy defects, resulting in improved device performance and stability. Benefiting from PT modification, the power conversion efficiency (PCE) is improved to 23.26% and the Pb leakage in unencapsulated films is significantly reduced to 9.79 ppm. Furthermore, the corresponding device exhibits no significant decay in PCE after tracking at the maximum power point (MPP) for 2000 h under illumination (LED source, 100 mW cm−2).

KW - Lead leakage

KW - Long-term stability

KW - Perovskite

KW - Potassium tartrate

UR - http://www.scopus.com/inward/record.url?scp=85174547247&partnerID=8YFLogxK

U2 - 10.1016/j.jechem.2023.09.008

DO - 10.1016/j.jechem.2023.09.008

M3 - Article

AN - SCOPUS:85174547247

SN - 2095-4956

VL - 88

SP - 64

EP - 70

JO - Journal of Energy Chemistry

JF - Journal of Energy Chemistry

ER -

Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate

Abstract

Keywords

UN SDGs

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