Optical and structural properties of radiant heated and vacuum annealed electron beam deposited CdS thin films

摘要

This paper describes the optical and structural properties of Cadmium Sulfide (CdS) thin films deposited onto glass substrate by vacuum evapn. assisted with (RH) and without radiant heater (VA)​. The RH and VA thin films showed high transmittance of 87​% at 680 and 550 nm resp. The optical band gap was estd. using transmittance measurements and found to be decreased with VA thin film. RH thin film revealed max. absorption coeff. compared to VA thin film. The XRD anal. confirmed that the films reveal hexagonal and cubic (002) orientations. The crystallite grain size was found to be 15.5 and 16.7 nm for RH and VA films resp.