自发光Sr5(VO4)3Cl荧光粉的制备及其稀土掺杂发光性能研究

he self-activated green-emitting phosphor of vanadate Sr5(VO4)3Cl was successfully sythesized by solid-state reaction. X-ray diffraction and fluorescence spectrometric analysis were used during the experiments. The results showed that pure phase of Sr5(VO4)3Cl was obtained under 970 oC for 3 hours' sintering with 50% excess NH4Cl. There were a quite broadband emission from 400 to 650 nm with only one peak at 514 nm when excitation wavelength was 341 nm. With Eu3+ doping in the Sr5(VO4)3Cl, the characteristic peaks of Eu3+ could be seen, however, when Na+ and Eu3+ co-doping in, the characteristic peaks of both [VO4]3- and Eu3+ could be seen.