Photoluminescence enhancement of YAG:Ce3+ phosphor prepared by co-precipitation-rheological phase method

稀土学报(英文版), 2012, 30(1): 21-24. doi: 10.1016/S1002-0721(10)60631-X

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

2.School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

3.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

4.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

5.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

6.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

基金项目: Major Science and Technology Project of Jiangxi Province(2010AZD00100) Foundation of Jiangxi Educational Committee(GJJ10153) Foundation of Jiangxi University of Science and Technology(Jxxjzd10007) the Natural Science Foundation of Jiangxi Province(2009GQC0042)

Photoluminescence enhancement of YAG:Ce3+ phosphor prepared by co-precipitation-rheological phase method

YE Xinyu ^1, , LONG Zhen ^2, , YANG Youming ^3, , NIE Huaping ^4, , GUO Yanwei ^5, , CAI Yufa ^6,

1.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

2.School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

3.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

4.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

5.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

6.School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

Keywords： phosphors

YAG:Ce3+ phosphor was prepared by a novel co-precipitation-rheological phase method.The resulting YAG:Ce3+ phosphor was characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM) and photoluminescent emission spectra.By using acetic acid as solvent,YAG:Ce3+ powder with small particle size (≤2 μm) was obtained at a relatively lower sintering temperature of 1400 ℃.With the content of acetic acid increasing,small particles dissolved and disappeared,but larger particles grew up and changed its shape from spherical to partially rectangular.Meanwhile,the emission intensity of the sample prepared by co-precipitation-rheological phase method was about 43％ higher than that of the sample prepared by co-precipitation method.It was assumed that the significant improvement of luminescence was mainly because the rheological phase presented a better diffusion environment,and therefore,a better homogeneity of activators of Ce3+.

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Photoluminescence enhancement of YAG:Ce3+ phosphor prepared by co-precipitation-rheological phase method

参考文献