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Updated: Jul 17, 2025

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
A systematic discrepancy between the short circuit current and the integrated quantum efficiency in perovskite solar
Michael Saliba1,2, Eva Unger3,4, Lioz Etgar5
1IEK5-Photovoltaics, Forschungszentrum Jülich, Jülich, Germany. michael.saliba@ipv.uni-stuttgart.de.
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.
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