Study on the Structural and Optical Properties of Chemically Deposited Cd_(1-x)Zn_xS thin Films Using Chemical Bath Deposition Technique

摘要

Cd ZnS (x = 0, 0.2, 0.4, 0.6, 0.8, and I) thin films were deposited by the chemical bath deposition technique. Thinfdms were deposited on cleaned glass slide. The structural properties of deposited films were studied by using X-ray diffraction technique. XRD studies revealed that the films were crystalline with cubic and hexagonal structure. Calculated lattice parameter showed good agreement with published data card. It was observed that grain size increased with increase in Zn up to x = 0.4. Further it decreased with increasing Zn. The band gap of the thin films varied from 2.45 to 3.50 eV as x varied from 0.0 to 1.0. It was observed that changes of the small amount of Zn resulted in marked changes in the optical band gap of CdS.