Synthesis and Luminescent Properties of Eu3+ Doped Na2YMg2 (VO4)3 Phosphors

被引：0

作者：

Li Z.-Y. ^{[1
]}

Li Y. ^{[2
]}

Xia A.-L. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Anhui University of Technology, Maanshan

[2] School of Mathematics and Physics of Science and Engineering, Anhui University of Technology, Maanshan

来源：

Li, Yong (yongli@ahut.edu.cn) | 2017年 / Editorial Office of Chinese Optics卷 / 38期

基金：

中国国家自然科学基金;

关键词：

Energy transfer; Fluorescence lifetime; Na[!sub]2[!/sub]YMg[!sub]2[!/sub] (VO[!sub]4[!/sub])[!sub]3[!/sub]:Eu[!sup]3+[!/sup; Self-activated;

D O I：

10.3788/fgxb20173803.0296

中图分类号：

学科分类号：

摘要：

A series of self-activated vanadate phosphors Na2Y1-xMg2 (VO4)3:xEu3+ (x=0.15-0.75) were prepared by sol-gel method. The phase formation, surface morphology and luminescence properties of the samples were verified by XRD, SEM, photoluminescence spectra and decay curves. It is found that the obtained samples are pure crystalline phases with garnet structure. The particles with a diameter ranging from 0.3 to 1 μm show irregular shapes and have a tendency to be agglomerating. This host can be excited by ultraviolet (UV) light, and it exhibits a broad-band green emission in the region from 400 to 700 nm, ascribing to the charge transfer of VO43- groups. Na2YMg2 (VO4)3:Eu3+ phosphors show both characteristic broad-band emission from VO43- groups and sharp emissions from Eu3+ ions upon 340 nm UV light. Moreover, the intensities of host and Eu3+ emission depend on the doping concentration of Eu3+. The energy transfer from VO43-to Eu3+ was discussed based on spectrum analysis and decay curves. © 2017, Science Press. All right reserved.

引用

下载

页码：296 / 302

页数：6

共 22 条

[1] Liu L.H., Xie R.J., Hirosaki N., Et al., Crystal structure and photoluminescence properties of red-emitting Ca9La1-x-(VO4)7:xEu3+ phosphors for white light-emitting diodes, J. Am. Ceram. Soc., 93, 12, pp. 4081-4086, (2010)
[2] Han L.L., Wang Y.H., Zhang J., Et al., Enhancement of red emission intensity of Ca9Y(VO4)7:Eu3+ phosphor via Bi co-doping for the application to white LEDs, Mater. Chem. Phys., 139, 1, pp. 87-91, (2013)
[3] Huang Y.L., Yu Y.M., Tsuboi T., Et al., Novel yellow-emitting phosphors of Ca5M4(VO4)6 (M=Mg, Zn) with isolated VO4 tetrahedra, Opt. Express, 20, 4, pp. 4360-4368, (2012)
[4] Rao Bandi V., Grandhe B.K., Jayasimhadri M., Et al., Photoluminescence and structural properties of Ca3Y-(VO4)3:RE3+ (Sm3+, Ho3+ and Tm3+) powder phosphors for tri-colors, J. Cryst. Growth, 326, 1, pp. 120-123, (2011)
[5] Jiao M.M., Guo N., Lu W., Et al., Tunable blue-green-emitting Ba3LaNa(PO4)3F:Eu2+, Tb3+ phosphor with energy transfer for near-UV white LEDs, Inorg. Chem., 52, 18, pp. 10340-10346, (2013)
[6] Li P.Y., Wang Z.J., Guo Q.L., Et al., Tunable emission phosphor Ca4Y6O(SiO4)6:Ce3+, Eu2+: luminescence and energy transfer, J. Am. Ceram. Soc., 98, 2, pp. 495-500, (2015)
[7] Zhao J., Guo C.F., Yu J., Et al., Spectroscopy properties of Eu3+ doped Ca9R(VO4)7 (R=Bi, La, Gd and Y) phosphors by sol-gel method, Opt. Laser Technol., 45, pp. 62-68, (2013)
[8] Tsai Y.Y., Chang Y.S., Synthesis and photoluminescence of (Y0.9-xLax)Eu0.1VO4 nano-crystal phosphors using a sol-gel method, Mater. Res. Bull., 48, 7, pp. 2609-2613, (2013)
[9] Kim K.Y., Yoon S.J., Park K., Synthesis and photoluminescence properties of red-emitting Ca3-3x/2(VO4)2:xEu3+ phosphors, J. Lumin., 160, pp. 78-84, (2015)
[10] Rambabu U., Amalnerkar D.P., Kale B.B., Et al., Fluorescence spectra of Eu3+-doped LnVO4 (Ln=La and Y) powder phosphors, Mate. Res. Bull., 35, 6, pp. 929-936, (2000)

← 1 2 3 →