Strain Modulation for Light-Stable n-i-p Perovskite/Silicon Tandem Solar Cells

Strain Modulation for Light-Stable n-i-p Perovskite/Silicon Tandem Solar Cells

© 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 26 vom: 30. Juli, Seite e2201315
1. Verfasser: Wang, Lina (VerfasserIn)
Weitere Verfasser: Song, Qizhen, Pei, Fengtao, Chen, Yihua, Dou, Jie, Wang, Hao, Shi, Congbo, Zhang, Xiao, Fan, Rundong, Zhou, Wentao, Qiu, Zhiwen, Kang, Jiaqian, Wang, Xueyun, Lambertz, Andreas, Sun, Mengru, Niu, Xiuxiu, Ma, Yue, Zhu, Cheng, Zhou, Huanping, Hong, Jiawang, Bai, Yang, Duan, Weiyuan, Ding, Kaining, Chen, Qi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article open-circuit voltage perovskite/silicon tandem solar cells phase segregation strain modulation
Beschreibung
Zusammenfassung:© 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.
Perovskite/silicon tandem solar cells are promising to penetrate photovoltaic market. However, the wide-bandgap perovskite absorbers used in top-cell often suffer severe phase segregation under illumination, which restricts the operation lifetime of tandem solar cells. Here, a strain modulation strategy to fabricate light-stable perovskite/silicon tandem solar cells is reported. By employing adenosine triphosphate, the residual tensile strain in the wide-bandgap perovskite absorber is successfully converted to compressive strain, which mitigates light-induced ion migration and phase segregation. Based on the wide-bandgap perovskite with compressive strain, single-junction solar cells with the n-i-p layout yield a power conversion efficiency (PCE) of 20.53% with the smallest voltage deficits of 440 mV. These cells also maintain 83.60% of initial PCE after 2500 h operation at the maximum power point. Finally, these top cells are integrated with silicon bottom cells in a monolithic tandem device, which achieves a PCE of 26.95% and improved light stability at open-circuit
Beschreibung:Date Revised 01.07.2022
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202201315