A series of Ce doped zinc oxide (ZnO)materials were prepared by precipitation method using Ce(NO3)3·6H2O,Zn(NO3)2·6H2O and NaOH as raw materials.The effects of doping amount of Ce,calcining temperature and calcining time on the luminescence properties of ZnO were studied.The ZnO was characterized by X-ray diffraction (XRD) and luminescence spectra.The results showed that the crystallinity of the ZnO and Ce doped ZnO were all high,and the Ce doping did not change the structure of the ZnO.The optimum process parameters as the calcination temperature at 500℃,the 2 hours calcination time and 2mol% Ce3+doping concentrations can respectively increase the photoluminescence of these ZnO phosphors.The Ce doped ZnO material can be effectively excited by UV radiation at 350nm.The strongest green emission peak appeared at 510nm.
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基金资助
牡丹江师范学院科研项目(YB2018002);牡丹江师范学院博士科研启动项目(MNUB201409)
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