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Ultraviolet emission of ZnO film prepared by electrophoretic deposition |
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| Authors: | Wang Zhi-Jun Wang Zhi-Jian Li Shou-Chun Wang Ze-Heng Lü You-Ming Yuan Jin-Shan |
| Affiliation: | Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; College of Physics, Jilin University, Changchun 130026, China |
| Abstract: | We deposited high quality ZnO film by electrophoretic deposition (EPD) using high quality ZnO powder prepared by solid-state pyrolytic reaction. X-ray photoelectron spectroscopy (XPS) and the infrared (IR) absorption spectrum clearly indicate that the ZnO phase powder has been prepared. Transmission electron microscope (TEM) imaging and x-ray diffraction (XRD) show that the average grain size of the powder is about 20nm. XRD and selected-area electron diffraction (SAED) reveal that the ZnO film has a polycrystalline hexagonal wurtzite structure. Only a strong ultraviolet emission peak at 390nm can be observed at room temperature. |
| Keywords: | ZnO films electrophoretic deposition UV emission |
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