Enhancing the efficiency and longevity of inverted perovskite solar cells with antimony-doped tin oxides
Jia Li,
Haoming Liang,
Chuanxiao Xiao,
Xiangkun Jia,
Renjun Guo,
Jinxi Chen,
Xiao Guo,
Ran Luo,
Xi Wang,
Minghui Li,
Michael Rossier,
Alina Hauser,
Flavio Linardi,
Ezra Alvianto,
Shunchang Liu,
Jiangang Feng and
Yi Hou ()
Additional contact information
Jia Li: National University of Singapore
Haoming Liang: National University of Singapore
Chuanxiao Xiao: Chinese Academy of Sciences
Xiangkun Jia: National University of Singapore
Renjun Guo: National University of Singapore
Jinxi Chen: National University of Singapore
Xiao Guo: National University of Singapore
Ran Luo: National University of Singapore
Xi Wang: National University of Singapore
Minghui Li: Chinese Academy of Sciences
Michael Rossier: Avantama AG
Alina Hauser: Avantama AG
Flavio Linardi: Avantama AG
Ezra Alvianto: National University of Singapore
Shunchang Liu: National University of Singapore
Jiangang Feng: National University of Singapore
Yi Hou: National University of Singapore
Nature Energy, 2024, vol. 9, issue 3, 308-315
Abstract:
Abstract Inverted perovskite solar cells possess great potential for single or multi-junction photovoltaics. However, energy and charge losses at the interfaces limit their performance. Here we introduce p-type antimony-doped tin oxides (ATOx) combined with a self-assembled monolayer molecule as an interlayer between the perovskite and hole-transporting layers (HTL) in inverted solar cells. ATOx increases the chemical stability of the interface; we show that the redox reaction that commonly took place at the NiOx/perovskite interface is negligible at the ATOx/perovskite interface. We demonstrate that ATOx suppresses non-radiative recombination in the perovskite layer and enhances the depletion at the perovskite/HTL interface for efficient charge extraction. Owing to these combined improvements, we achieve inverted perovskite solar cells with a maximum efficiency of 25.7% (certified steady-state efficiency of 24.8%) for an area of 0.05 cm2, retained under maximum power point tracking over 500 h and 24.6% (certified steady-state efficiency of 24.0%) for an area of 1 cm2.
Date: 2024
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DOI: 10.1038/s41560-023-01442-1
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