Abstract
Methylammonium lead-halide perovskites are very promising for applications as solar light-harvesting materials. This paper presents a study on the methylammonium iodide and iodide-chloride perovskite films prepared by spin coating from a liquid precursor. The powder diffraction spectroscopy has detected 10 lattice plane reflections common to a perovskite of a tetragonal crystal structure. The calculated cell parameters are a = 8.85 Å and c = 12.60 Å. The preparation conditions and their impact on the crystallization process and film morphology are discussed. A red shift of photoluminescence bands at low temperatures was evidenced. A photoelectrical study of perovskite films has revealed their high sensibility to illumination, especially in the visible spectrum, which gives a hint on their applications in photovoltaics.
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Plesco, I., Postolache, V., Volodina, G. et al. Synthesis and characterization of photosensible CH3NH3PbI3 and CH3NH3PbI3–x Cl x perovskite crystalline films. Surf. Engin. Appl.Electrochem. 53, 15–19 (2017). https://doi.org/10.3103/S1068375517010100
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DOI: https://doi.org/10.3103/S1068375517010100