科研之友
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摘要
Ternary films of CdxZn1-xS were deposited on Corning glass substrates by the chemical bath deposition technique at 80 degrees C. A process for depositing thin films of the ternary CdxZn1-xS is proposed. Different induction times in the methodology for films deposition were included. The chemical bath was composed of zinc chloride, thiourea, and cadmium chloride as source of the main ions, ammonium nitrate as complexing agent, and potassium hydroxide for pH control. Groups of samples with different conditions were deposited to obtain the ternary material. The manufacturing processes as well as the chemical reactions that take place during preparation are discussed. The morphology, the crystalline structure, and the optical properties of the deposited films were obtained. X-ray diffraction results revealed hexagonal structures of the CdxZn1-xS material in all the deposited samples and structures of ZnO in some cases. Energy dispersive spectroscopy results show the presence of Cd, Zn, and S as main components of the material. A double transition on the absorption measurements were obtained on the produced ternary films which is associated with a double bandgap energy.
- 出版日期2015-6-3
