Structural properties of perovskite thin film

Abstract

Methyl-ammonium lead tri iodide (CH₃NH₃PbI₃) have been attracted attention in the domain of solar energy because of their great absorption coefficient and little temperature fabrication.  Perovskite thin film have been prepared by solution processing. Thin film after dropped in the laboratory ambient states by drop casting, it made by two step procedure PbI₂ and CH₃NH₃I at the glass substrates. The analysis deals the structural properties, x-ray diffraction, and scanning electron microscope of these films with tetragonal structure. Space group I4/mcm (Z=4), a=8.800 Å,c=12.685 Å, crystallite size was 340 nm, dislocation density 8.19 ×10^-4 lines/m² and micro strain 9.93 ×10^--8 lines^-2/ m⁴