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Coexistence of cubic and tetragonal phase with colored excitonic emissions in mixed halide Perovskite CH3NH3PbI3-xClx thin film

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Published under licence by IOP Publishing Ltd
, , Citation A M M Tanveer Karim et al 2020 J. Phys.: Conf. Ser. 1412 132016 DOI 10.1088/1742-6596/1412/13/132016

1742-6596/1412/13/132016

Synopsis

CH3NH3PbI3-xClx crystalline film composed of cuboids and polyhedral structure was prepared by dipping and withdrawing method at ambient. X-ray diffraction shows the presence of tetragonal and cubic phases having high absorption coefficient of 106 m-1. Photoluminescence study confirms shallow and deep level emissions. Temperature dependent-cathodoluminescence shows a green luminescence at 2.51 eV accompanied by weak red and ultraviolet luminescence at 80 and 300 K.

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10.1088/1742-6596/1412/13/132016