Polymer-acid-metal quasi-ohmic contact for stable perovskite solar cells beyond a 20,000-hour extrapolated lifetime

Luo J, Liu B, Yin H, Zhou X, Wu M, Shi H, Zhang J, Elia J, Zhang K, Wu J, Xie Z, Liu C, Yuan J, Wan Z, Heumüller T, Lüer L, Spiecker E, Li N, Jia C, Brabec C, Zhao Y (2024)

Publication Language: English

Publication Type: Journal article

Publication year: 2024

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 15

Article Number: 2002

DOI: 10.1038/s41467-024-46145-7

Abstract

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.

Authors with CRIS profile

Bowen Liu Institute Materials for Electronics and Energy Technology (i-MEET) Xin Zhou Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Mingjian Wu Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Jiyun Zhang Institute Materials for Electronics and Energy Technology (i-MEET) Jack Elia Institute Materials for Electronics and Energy Technology (i-MEET) Kaicheng Zhang Institute Materials for Electronics and Energy Technology (i-MEET) Jianchang Wu Institute Materials for Electronics and Energy Technology (i-MEET) Zhiqiang Xie Institute Materials for Electronics and Energy Technology (i-MEET) Chao Liu Institute Materials for Electronics and Energy Technology (i-MEET) Thomas Heumüller Institute Materials for Electronics and Energy Technology (i-MEET) Larry Lüer Institute Materials for Electronics and Energy Technology (i-MEET) Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Ning Li Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Additional Organisation(s)

Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM) Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

University of Electronic Science and Technology of China (UESTC) / 电子科技大学 CN China (CN)

How to cite

APA:

Luo, J., Liu, B., Yin, H., Zhou, X., Wu, M., Shi, H.,... Zhao, Y. (2024). Polymer-acid-metal quasi-ohmic contact for stable perovskite solar cells beyond a 20,000-hour extrapolated lifetime. Nature Communications, 15. https://doi.org/10.1038/s41467-024-46145-7

MLA:

Luo, Junsheng, et al. "Polymer-acid-metal quasi-ohmic contact for stable perovskite solar cells beyond a 20,000-hour extrapolated lifetime." Nature Communications 15 (2024).

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