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Methylammonium tin halides have been identified as a substitute for the lead‐based perovskites in photovoltaic devices. We report the fabrication of CH3 NH3 SnI3 thin films using physical vapor deposition. The periodic deposition of SnI2 and CH3 NH3 I yields thin films that homogeneously cover areas as large as 100 cm2. The microscopic homogeneity of the layers causes a metallic reflectivity. Photoluminescence...
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