Synthesis and Characterization of ZrO_2 and ZrO_2:CdS Films

ZrO_2 and ZrO_2:CdS films were synthesized by sol-gel technique using re-crystallized ZrOCI_2·8H_2O as the starting material. The results show that the concentration of ZrO_2 and thickness of films can influence the transmission property of ZrO_2 films. CdS nanoparticles can be well dispersed in ZrO_2 film. The average size of CdS particles is 4-6 um. The conclusion is: (1) the crystallization of ZrO_2 particles can influence the optical properties and surface morphology of ZrO_2 films; (2) CdS nanoparticles incorporated in ZrO_2 films can restrain the crystallization of ZrO_2 and relatively smooth ZrO_2:CdS film can be obtained.