Vapor-Phase Anion Exchange in CH3NH3PbBr3 Perovskite Films: Continuous Bandgap Tuning and HI-Mediated Corrosion of ITO Substrates
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CH3NH3PbBr3 crystalline films were prepared on ITO substrates using the spin-coating method, followed by a vapor-phase anion exchange process in a tube furnace using CH3NH3I to gradually replace the Br anions with I anions. By controlling the reaction time, th... ...
