Romero, BeatrizDelgado, silviaGlowienkaChang, Cheng-Tsungdel Pozo, GonzaloArredondo, BelénMartin-Martin, DiegoContreras, PedroGalagan, Yulia2024-01-082024-01-082023-05-02Sustainable Energy Fuels, 2023,7, 2146-21522398-4902https://hdl.handle.net/10115/28259This work was funded by Comunidad de Madrid under the SINFOTON2-CM Research Program (S2018/NMT-4326), and by Universidad Rey Juan Carlos with research projects “Materiales nanoensamblados para sensado y manipulación de luz en amplio rango espectral”, reference M2417, “Células fotovoltaicas de tercera generación basadas en semiconductores orgánicos avanzados perovskitas híbridas en estructuras multiunión”, reference M2607, and “Células Solares de 3ª generación de alta eficiencia y estabilidad”, M2180. This research was funded in part by National Science Centre, in cooperation with the M-ERA.NET 3 Call 2021 for the grant number 2021/03/Y/ST5/00233. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 958174.Mixed-cation mixed-halide perovskite solar cells have been characterized in DC at different temperatures (from -20 degrees C up to 50 degrees C) and the time evolution of the device efficiency has been assessed using different degradation protocols (indoors and outdoors). The completely planar p-i-n structure is ITO/CuNiOx/PTAA/CsFAPbIBr/PCBM/PEI/Ag. Pristine current-voltage characteristics barely show hysteresis, at any temperature. Open circuit voltage decreases with temperature at a rate of -1.5 mV degrees C-1, and the obtained PCE temperature coefficient is lower than -0.001% K-1, which is an outstanding value for this emerging photovoltaic technology. Cells have been degraded under different protocols: indoors using different light/dark cycles and outdoors in a high temperature and high irradiation location. Cells show no significant decrease of the efficiency after more than 350 h of indoor light cycling and the estimated T-80 obtained for the sample degraded outdoors under high irradiation and high temperature conditions is similar to 15 days.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Performancephotovoltaicsstabilityinfo:eu-repo/semantics/article10.1039/D2SE01766Kinfo:eu-repo/semantics/embargoedAccess