TY - JOUR
T1 - Controlling Water for Enhanced Homogeneities in Perovskite Solar Cells with Remarkable Reproducibility
AU - Wang, Chenyue
AU - He, Bingchen
AU - Hui, Wei
AU - Su, Zhenhuang
AU - Chen, Li
AU - Du, Weizhi
AU - Zhang, Liujiang
AU - Zhang, Junhan
AU - Fu, Meirong
AU - Wang, Hao
AU - Sun, Bo
AU - Wen, Wen
AU - Wang, Sisheng
AU - Lou, Liyu
AU - Hou, Chen
AU - Zheng, Guanhaojie
AU - Song, Lin
AU - Chen, Yonghua
AU - Gao, Xingyu
N1 - Publisher Copyright:
© 2024 Wiley-VCH GmbH.
PY - 2024/10/8
Y1 - 2024/10/8
N2 - Two-step sequential deposition of perovskite films is proven efficient and compatible with large-scale production. Nevertheless, its critically regulated environmental humidity often remains a burden, hindering its applications in reproducible fabrication of perovskite solar cells (PSCs). Herein, by introducing a water ethyl acetate (W-EA) solution treatment before annealing, improved perovskite crystallinity and homogeneity in FA0.95-xMAxCs0.05PbI3 films without additional composition regulation is achieved. In situ Grazing-incidence Wide-angle X-ray Scattering experiments highlighted accelerated crystallization kinetics in W-EA-treated films, leading to high-quality perovskite formation. PSCs based on this method reached an optimal power conversion efficiency of 25.01% and demonstrated enhanced moisture resistance, retaining 88% efficiency after 1000 h in ambient conditions. This W-EA treatment simplifies the fabrication process, greatly reducing the need for controlled humidity, and offers insights into the role of water in perovskite film crystallization, with significant implications to produce high-performance PSCs.
AB - Two-step sequential deposition of perovskite films is proven efficient and compatible with large-scale production. Nevertheless, its critically regulated environmental humidity often remains a burden, hindering its applications in reproducible fabrication of perovskite solar cells (PSCs). Herein, by introducing a water ethyl acetate (W-EA) solution treatment before annealing, improved perovskite crystallinity and homogeneity in FA0.95-xMAxCs0.05PbI3 films without additional composition regulation is achieved. In situ Grazing-incidence Wide-angle X-ray Scattering experiments highlighted accelerated crystallization kinetics in W-EA-treated films, leading to high-quality perovskite formation. PSCs based on this method reached an optimal power conversion efficiency of 25.01% and demonstrated enhanced moisture resistance, retaining 88% efficiency after 1000 h in ambient conditions. This W-EA treatment simplifies the fabrication process, greatly reducing the need for controlled humidity, and offers insights into the role of water in perovskite film crystallization, with significant implications to produce high-performance PSCs.
KW - Grazing-incidence wide-angle X-ray scattering
KW - crystallization kinetics
KW - homogeneity
KW - perovskite solar cells
KW - water
UR - https://www.scopus.com/pages/publications/85198380513
U2 - 10.1002/adfm.202403690
DO - 10.1002/adfm.202403690
M3 - 文章
AN - SCOPUS:85198380513
SN - 1616-301X
VL - 34
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 41
M1 - 2403690
ER -