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Theory of Electrochemical Kinetics for Perovskite Solar Cells: Fitting Current–Voltage Curves

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Abstract

Based on the reaction of electron-hole separation in perovskite solar cells, we derived the mathematical relationship between current and voltage from the viewpoint of electrochemical kinetics and, moreover, by using this relation, we successfully fitted the i–E curves. We found that the nonlinear relationships between the activation energy and the potential of the recombination reaction are the fundamental reason for the appearance of the hysteresis loop.

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ACKNOWLEDGMENTS

The authors give special thanks to Dr. Jing Hu for providing comments.

Funding

The authors gratefully acknowledge financial supports from the Foundation of National Key Laboratory (No. 6142808180202), P.R. China and Open Fund of Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies (No. MTEC2019-1).

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Authors and Affiliations

  1. School of Physics, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P. R. China

    Yi-Tao He &  Yaohui Zhang

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  1. Yi-Tao He
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  2. Yaohui Zhang
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Correspondence to Yaohui Zhang.

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Yi-Tao He, Yaohui Zhang Theory of Electrochemical Kinetics for Perovskite Solar Cells: Fitting Current–Voltage Curves. Russ J Electrochem 55, 1299–1304 (2019). https://doi.org/10.1134/S1023193519120061

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  • DOI: https://doi.org/10.1134/S1023193519120061

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