Effect Some Factors on the Structural Properties of the CdS Thin Films Prepared by Chemical Bath Deposition

Abstract

CdS  thin films were prepared by chemical bath deposition technique(CBD) onto the glass substrates at different conditions of preparation. The obtained samples are studied by X-Ray diffraction (XRD). The XRD patterns of CdS samples revealed the formation with a hexagonal crystal structure P36mc, and the clear effect of the concentration of thiourea , cadmium sulfide ,NaOH ,time and temperature deposition, and annealing temperature ,on the structure of the prepared thin films . through the study , we found that the samples have preferred orientation along [002] , also the thickness of thin films decrease with deposition time after certain value , with the appearance of free cadmium . It has been found that the 200^°C is the best temperature  for annealing to improve the other structural and physical properties of films.

Keywords :Structure properties, CdS Thin films ,Chemical Bath Deposition.