Print Email Facebook Twitter Universal control strategy for anomalous ionic-electronic phenomenology in perovskite solar cells efficiency measurements Title Universal control strategy for anomalous ionic-electronic phenomenology in perovskite solar cells efficiency measurements Author Hernández-Balaguera, E. Munoz-Díaz, L. Pereyra, C. Lira-Cantu, M. Najafi, M. Galagan, Y. Publication year 2022 Abstract The unprecedented increase of photovoltaic perovskites performance metrics has been obscured by the puzzling phenomenology underlying the device's anomalous ionic/electronic landscape. Thus, the establishment of a reliable measurement protocol of efficiency measurements, unanimously adopted by the perovskite's community, is indeed necessary to ensure comparability of device performance between different research laboratories. Here, we report a control strategy of ionic-electronic cooperative relaxation phenomena, eliminating the “hysteria around hysteresis”. The procedure, based on mixed engineering strategies, solves the problem that arises from the difficulty of providing steady-state device operation conditions, capturing in turn the anomalous capacitive behavior. From the determination of an optimal scan rate for JeV modeling, we provide an experimental visualization of the interplay between perovskites' ionic and electronic responses. The results of this combined theoretical and experimental study identify key guidelines about assessment procedural of device performance that should be taken into account in future publications to further improve reproducibility in the research field. Subject Metal halide perovskitesJeV hysteresisDevice performance assessmentImpedance spectroscopyTransient analysis To reference this document use: http://resolver.tudelft.nl/uuid:a8f31ac5-5f24-4264-ab4d-05f48806236e DOI https://doi.org/doi:j.mtener.2022.101031/ TNO identifier 972428 Publisher Elsevier ISSN 2468-6069 Source Materials Today Energy Document type article Files To receive the publication files, please send an e-mail request to TNO Library.