Abstract: CaWO4∶Eu3+ red phosphor for white LED was synthesized by microwave heating.The structure of samples were characterized by X-ray diffraction(XRD).The excitation and emission spectra were studied by fluorescence spectrophotometer.The results showed that the samples were scheelite structure.A series of phosphors can be excited by near ultraviolet light (396nm).It was obvious that the main emission peak was located at 617nm and the dipole transition of 5D0→7F2 belonging to the emission center Eu3+.It was found that the luminescence intensity of samples could be improved effectively.At the same time,the effects of microwave absorber,microwave heating time and heating power,and the effect of different rare earth doped ions on the structure and luminescence properties of phosphor were studied.
曹静,王永锋,李兆. CaWO4∶Eu3+红色荧光粉的微波合成及性能研究[J]. 化工新型材料, 2018, 46(10): 109-111.
Cao Jing,Wang Yongfeng,Li Zhao. Preparation and property of CaWO4∶Eu3+ red phosphor. New Chemical Materials, 2018, 46(10): 109-111.
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