Fabrication and Luminescence Properties of Ca2Gd8 (SiO4)6O2: Er3+ Phosphors via Sol-Gel Process

被引：0
作者：
Institute of New Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China [1 ]
不详 [2 ]
机构：
[1] Institute of New Materials, Northeastern University at Qinhuangdao, Qinhuangdao
[2] Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
来源：
J Rare Earth | 2006年 / 1 SUPPL. 1卷 / 108-110期
关键词：
Er[!sup]3+[!/sup; luminescence; rare earths; silicate oxyapatite; sol-gel;
D O I：
10.1016/S1002-0721(07)60335-4
中图分类号：
学科分类号：
摘要：
Ca2RE8(SiO4)6O2(RE = Y, Gd, La) is a kind of ternary rare-earth-metal silicate with the oxyapatite structure, which was used as host materials for the luminescence of various rare earth and mercury-like ions. Ca2Gd8(SiO4)6O2:Er3+ phosphors were prepared through the sol-gel process. X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectra were used to characterize the resulting phosphors. The results of XRD indicate that the phosphors crystallized completely at 1000 °C. SEM study reveals that the average grain size is 400 ∼ 1000 nm. In Ca2Gd8 (SiO4)6O2: Er3+ shows its characteristic green emission at 528 nm (2H11/2-4I15/2) and 548 nm (4S3/2-4I15/2) upon excitation into 382 nm, with an optimum doping concentration of 5% (mole fraction) of Gd3+ in the host lattices. © 2006 The Chinese Society of Rare Earths.
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页码：108 / 110
页数：2
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