TY  - JOUR
AU  - Luo, Junsheng
AU  - Liu, Bowen
AU  - Yin, Haomiao
AU  - Zhou, Xin
AU  - Wu, Mingjian
AU  - Shi, Hongyang
AU  - Zhang, Jiyun
AU  - Elia, Jack
AU  - Zhang, Kaicheng
AU  - Wu, Jianchang
AU  - Xie, Zhiqiang
AU  - Liu, Chao
AU  - Yuan, Junyu
AU  - Wan, Zhongquan
AU  - Heumueller, Thomas
AU  - Lüer, Larry
AU  - Spiecker, Erdmann
AU  - Li, Ning
AU  - Jia, Chunyang
AU  - Brabec, Christoph J.
AU  - Zhao, Yicheng
TI  - Polymer-acid-metal quasi-ohmic contact for stable perovskite solar cells beyond a 20,000-hour extrapolated lifetime
JO  - Nature Communications
VL  - 15
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Nature Publishing Group UK
M1  - FZJ-2024-02770
SP  - 2002
PY  - 2024
AB  - The development of a robust quasi-ohmic contact with minimal resistance, good stability and cost-effectiveness is crucial for perovskite solar cells. We introduce a generic approach featuring a Lewis-acid layer sandwiched between dopant-free semicrystalline polymer and metal electrode in perovskite solar cells, resulting in an ideal quasi-ohmic contact even at elevated temperature up to 85 °C. The solubility of Lewis acid in alcohol facilitates nondestructive solution processing on top of polymer, which boosts hole injection from polymer into metal by two orders of magnitude. By integrating the polymer-acid-metal structure into solar cells, devices exhibit remarkable resilience, retaining 96% ± 3%, 96% ± 2% and 75% ± 7% of their initial efficiencies after continuous operation in nitrogen at 35 °C for 2212 h, 55 °C for 1650 h and 85 °C for 937 h, respectively. Leveraging the Arrhenius relation, we project an impressive T80 lifetime of 26,126 h at 30 °C.
LB  - PUB:(DE-HGF)16
C6  - 38443353
UR  - <Go to ISI:>//WOS:001180394600011
DO  - DOI:10.1038/s41467-024-46145-7
UR  - https://juser.fz-juelich.de/record/1025202
ER  -