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Thermal Stability of Mixed-Cation Perovskite Solar Cells
M. Santos · J. Lin · Last edited 2 minutes ago
Hybrid organic–inorganic perovskites have emerged as leading candidates for next-generation photovoltaics, yet their long-term operational stability remains the principal barrier to commercial deployment.
Recent studies demonstrate that partial substitution of formamidinium with cesium suppresses the photoinactive δ-phase, extending device lifetimes beyond 1,000 hours under continuous illuminationAI · cited. We extend this line of inquiry to mixed-halide compositions under elevated humidity.
Encapsulated devices were aged at 85 °C and 85% relative humidity following the IEC 61215 damp-heat protocol, with current–voltage characteristics recorded at 24-hour intervals.
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Thermal Stability of Mixed-Cation Perovskites
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