A systematic discrepancy between the short circuit current and the integrated quantum efficiency in perovskite solar cells

Michael Saliba (), Eva Unger, Lioz Etgar, Jingshan Luo and T. Jesper Jacobsson ()
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Michael Saliba: Forschungszentrum Jülich
Eva Unger: Helmholtz-Zentrum Berlin für Materialen und Energie GmbH
Lioz Etgar: The Hebrew University of Jerusalem
Jingshan Luo: Nankai University
T. Jesper Jacobsson: Nankai University

Nature Communications, 2023, vol. 14, issue 1, 1-6

Abstract: Abstract Halide perovskites solar cells are now approaching commercialisation. In this transition from academic research towards industrialisation, standardized testing protocols and reliable dissemination of performance metrics are crucial. In this study, we analyze data from over 16,000 publications in the Perovskite Database to investigate the assumed equality between the integrated external quantum efficiency and the short circuit current from JV measurements. We find a systematic discrepancy with the JV-values being on average 4% larger. This discrepancy persists across time, perovskite composition, and device architecture, indicating the need to explore new perovskite physics and update reporting protocols and assumptions in the field.

Date: 2023
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DOI: 10.1038/s41467-023-41263-0

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