Modulation of perovskite degradation with multiple-barrier for light-heat stable perovskite solar cells

Jing Zhou, Zonghao Liu (), Peng Yu, Guoqing Tong, Ruijun Chen, Luis K. Ono, Rui Chen, Haixin Wang, Fumeng Ren, Sanwan Liu, Jianan Wang, Zhigao Lan, Yabing Qi () and Wei Chen ()
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Jing Zhou: Huazhong University of Science and Technology (HUST)
Zonghao Liu: Huazhong University of Science and Technology (HUST)
Peng Yu: Huazhong University of Science and Technology (HUST)
Guoqing Tong: Okinawa Institutes of Science and Technology Graduate University (OIST)
Ruijun Chen: Huanggang Normal University
Luis K. Ono: Okinawa Institutes of Science and Technology Graduate University (OIST)
Rui Chen: Huazhong University of Science and Technology (HUST)
Haixin Wang: Huazhong University of Science and Technology (HUST)
Fumeng Ren: Huazhong University of Science and Technology (HUST)
Sanwan Liu: Huazhong University of Science and Technology (HUST)
Jianan Wang: Huazhong University of Science and Technology (HUST)
Zhigao Lan: Huanggang Normal University
Yabing Qi: Okinawa Institutes of Science and Technology Graduate University (OIST)
Wei Chen: Huazhong University of Science and Technology (HUST)

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract The long-term stability of perovskite solar cells remains one of the most important challenges for the commercialization of this emerging photovoltaic technology. Here, we adopt a non-noble metal/metal oxide/polymer multiple-barrier to suppress the halide consumption and gaseous perovskite decomposition products release with the chemically inert bismuth electrode and Al2O3/parylene thin-film encapsulation, as well as the tightly closed system created by the multiple-barrier to jointly suppress the degradation of perovskite solar cells, allowing the corresponding decomposition reactions to reach benign equilibria. The resulting encapsulated formamidinium cesium-based perovskite solar cells with multiple-barrier maintain 90% of their initial efficiencies after continuous operation at 45 °C for 5200 h and 93% of their initial efficiency after continuous operation at 75 °C for 1000 h under 1 sun equivalent white-light LED illumination.

Date: 2023
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DOI: 10.1038/s41467-023-41856-9

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