Abstract：ZnO nanocrystal was prepared with Zn(CH3COO)2·2H2O and CO(NH2)2 as precursor by a solvothermal process. The products were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM)，and photoluminescence spectrum(PL). The results show that the ZnO nanocrystal has good characteristics, and the average particle size of the ZnO nanocrystal is about 17.2 nm. There is a broad PL peak for ZnO nanocrystal between 500-700 nm.
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