%0 Journal Article
%A Wang, Lina
%A Song, Qizhen
%A Pei, Fengtao
%A Chen, Yihua
%A Dou, Jie
%A Wang, Hao
%A Shi, Congbo
%A Zhang, Xiao
%A Fan, Rundong
%A Zhou, Wentao
%A Qiu, Zhiwen
%A Kang, Jiaqian
%A Wang, Xueyun
%A Lambertz, Andreas
%A Sun, Mengru
%A Niu, Xiuxiu
%A Ma, Yue
%A Zhu, Cheng
%A Zhou, Huanping
%A Hong, Jiawang
%A Bai, Yang
%A Duan, Weiyuan
%A Ding, Kaining
%A Chen, Qi
%T Strain Modulation for Light‐Stable n–i–p Perovskite/Silicon Tandem Solar Cells
%J Advanced materials
%V 34
%N 26
%@ 0935-9648
%C Weinheim
%I Wiley-VCH
%M FZJ-2022-04510
%P 2201315 -
%D 2022
%X Perovskite/silicon tandem solar cells are promising to penetrate photovoltaicmarket. However, the wide-bandgap perovskite absorbers used in top-celloften suffer severe phase segregation under illumination, which restricts theoperation lifetime of tandem solar cells. Here, a strain modulation strategyto fabricate light-stable perovskite/silicon tandem solar cells is reported. Byemploying adenosine triphosphate, the residual tensile strain in the wide-bandgapperovskite absorber is successfully converted to compressive strain,which mitigates light-induced ion migration and phase segregation. Basedon the wide-bandgap perovskite with compressive strain, single-junctionsolar cells with the n–i–p layout yield a power conversion efficiency (PCE) of20.53% with the smallest voltage deficits of 440 mV. These cells also maintain83.60% of initial PCE after 2500 h operation at the maximum power point.Finally, these top cells are integrated with silicon bottom cells in a monolithictandem device, which achieves a PCE of 26.95% and improved light stabilityat open-circuit.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 35435280
%U <Go to ISI:>//WOS:000796547500001
%R 10.1002/adma.202201315
%U https://juser.fz-juelich.de/record/911204