Synthesis and characterization of the as-deposited Cd$_{1-x}$Pb$_x$S thin films prepared by spray pyrolysis technique

Cd$_{1-x}$Pb$_x$S thin films were prepared by spray pyrolysis technique onto glass substrate at 300$^\circ$C temperatures. The prepared films were characterized elemental, structural and optical properties by energy dispersive X-ray, scanning electron microscopy, X-ray diffraction and UV-VIS spectrophotometer. Energy dispersive X-ray confirmed the presence of Cd, S and Pb in the films. SEM images show that the deposition covered the substrate well uniformly and incorporation of Pb. Crystal stucture was found hexagonal and the estimated grain size was lies in between 9 to 49 nm. The optical band gap was decreased from 2.43 to 2.07 eV.