Crystalline and absorption studies on PMMA/CdS composite using XRD & UV-Vis techniques

Abstract

The composite of PMMA and CdS powder were prepared by solution casting technique after sonication for 60 min. The Crystallinity Index, Interplanar Distance, Crystallite Size, Average Inter Crystalline Separation and Energy Band Gap have been estimated for the prepared samples. The crystallinity index is increasing from 39.74% for pure PMMA to 41.45% for 1%CdS+PMMA composite film. The crystallite size is decreasing with increasing the concentration of CdS. The energy band gap of Pure PMMA from absorption spectra was found to be 4.542eV, which decreases with concentration of CdS powder within PMMA matrix.