| Summary: | With the explosion of energy demand in human society, the efficient use of solar energy has become an inevitable part for human to develop and make progress today. Solar cell has gotten widespread concern of the scientific researchers due to its low production costs and high theoretical conversion efficiency. CdSe/TiO2 heterojunction films are prepared by cyclic voltammetry and the CdSe is deposited on the TiO2 nanorod array film. And the materials are cadmium chloride (CdCl2·5H2O) and selenous dioxide in this paper. The crystal structure, optical absorption capacity and photoelectric properties of the samples are studied by XRD, UV-VIS and electrochemical workstation at different annealing temperatures. The experimental results show that the CdSe/TiO2 heterojunction thin films have the best photoelectric properties when the annealing temperature is 450 °C. And the photoelectric conversion efficiency can reach 8.75%, which indicates that the CdSe/TiO2 nanorod array film has potential applications in the field of solar cells.
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