Room temperature growth of CH3NH3PbCl3 single crystals by solvent evaporation method

Abstract

We report a new route to synthesize high-quality, large-size crystals of CH₃NH₃PbCl₃ through proper selection of DSMO–GBL solution via solvent evaporation method at room temperature. A detailed evaluation of the structural, electronic, optical and electrical properties of these crystals was carried out. Our XPS studies suggested that organic–inorganic halide perovskites are sensitive to X-ray-induced damage, and hence, their properties may get altered. Also, photoluminescence studies displayed two peak spectra, indicating coexistence of order–disorder domains of CH₃NH₃ in the sample. Further observation of low defect concentration and longer diffusion length indicates that crystals grown by the presented method can offer promising solutions for optoelectronic devices.