Surface reconstruction of wide-bandgap perovskites enables efficient perovskite/silicon tandem solar cells

Zheng Fang; Bingru Deng; Yongbin Jin; Liu Yang; Lisha Chen; Yawen Zhong; Huiping Feng; Yue Yin; Kaikai Liu; Yingji Li; Jinyan Zhang; Jiarong Huang; Qinghua Zeng; Hao Wang; Xing Yang; Jinxin Yang; Chengbo Tian; Liqiang Xie; Zhanhua Wei; Xipeng Xu

doi:10.1038/s41467-024-54925-4

Nature Communications (Dec 2024)

Surface reconstruction of wide-bandgap perovskites enables efficient perovskite/silicon tandem solar cells

Zheng Fang,
Bingru Deng,
Yongbin Jin,
Liu Yang,
Lisha Chen,
Yawen Zhong,
Huiping Feng,
Yue Yin,
Kaikai Liu,
Yingji Li,
Jinyan Zhang,
Jiarong Huang,
Qinghua Zeng,
Hao Wang,
Xing Yang,
Jinxin Yang,
Chengbo Tian,
Liqiang Xie,
Zhanhua Wei,
Xipeng Xu

Affiliations

Zheng Fang: Ministry of Education Engineering Research Center for Brittle Materials Machining, Institute of Manufacturing Engineering, College of Mechanical Engineering and Automation, Huaqiao University
Bingru Deng: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Yongbin Jin: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Liu Yang: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Lisha Chen: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Yawen Zhong: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Huiping Feng: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Yue Yin: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Kaikai Liu: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Yingji Li: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Jinyan Zhang: Gold Stone (Fujian) Energy Company Limited
Jiarong Huang: Gold Stone (Fujian) Energy Company Limited
Qinghua Zeng: Gold Stone (Fujian) Energy Company Limited
Hao Wang: Beijing Huairou Laboratory
Xing Yang: Kunshan Shengcheng Photoelectric Technology Co., Ltd.
Jinxin Yang: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Chengbo Tian: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Liqiang Xie: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Zhanhua Wei: Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University
Xipeng Xu: Ministry of Education Engineering Research Center for Brittle Materials Machining, Institute of Manufacturing Engineering, College of Mechanical Engineering and Automation, Huaqiao University

DOI: https://doi.org/10.1038/s41467-024-54925-4
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 11

Abstract

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Abstract Wide-bandgap perovskite solar cells (WBG-PSCs) are critical for developing perovskite/silicon tandem solar cells. The defect-rich surface of WBG-PSCs will lead to severe interfacial carrier loss and phase segregation, deteriorating the device’s performance. Herein, we develop a surface reconstruction method by removing the defect-rich crystal surface by nano-polishing and then passivating the newly exposed high-crystallinity surface. This method can refresh the perovskite/electron-transporter interface and release the residual lattice strain, improving the charge collection and inhibiting the ion migration of WBG perovskites. As a result, we can achieve certified efficiencies of 23.67% and 21.70% for opaque and semi-transparent PSCs via a 1.67-eV perovskite absorber. Moreover, we achieve four-terminal perovskite/silicon tandem solar cells with a certified efficiency of 33.10% on an aperture area of one square centimeter.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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