Photoluminescence enhancement of red-emitting GdVO4:Eu and YVO4:Eu phosphors by adding zinc

被引：9

作者：

Park, K. ^{[1
]}

Kim, J. ^{[1
]}

Kim, K. Y. ^{[1
]}

Kim, J. Y. ^{[2
]}

Kim, Y. ^{[3
,4
]}

Dhoble, S. J. ^{[5
]}

机构：

[1] Sejong Univ, Fac Nanotechnol & Adv Mat Engn, Seoul 143747, South Korea

[2] Hoseo Univ, Dept Adv Mat Engn, Asan 336795, Chungnam, South Korea

[3] Dankook Univ, Dept Chem, Cheonan 330714, Chungnam, South Korea

[4] Dankook Univ, Inst Basic Sci, Cheonan 330714, Chungnam, South Korea

[5] RTM Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India

来源：

JOURNAL OF RARE EARTHS | 2013年 / 31卷 / 01期

关键词：

rare earths; photoluminescence; vanadate; ultrasonic spray pyrolysis; VUV PHOTOLUMINESCENCE; LUMINESCENT PROPERTIES; PARTICLES; GDVO4-EU3+; OXIDE;

D O I：

10.1016/S1002-0721(12)60227-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We synthesized the rare-earth activated R0.94-xEu0.06ZnxVO4 (R: Gd and Y; 0 <= x <= 0.08) phosphors with a spherical morphology and a smooth surface by the ultrasonic spray pyrolysis. The annealed R0.94-xEu0.06ZnxVO4 crystallized in the tetragonal zircon type structure, belonging to the space group of I4(1)/amd. The incorporation of a small amount of Zn to R0.94Eu0.06VO4 improved the emission characteristics. The emission intensities of the Gd0.88Eu0.06Zn0.06VO4 and Y0.9Eu0.06Zn0.04VO4 phosphors at 619 nm were 72% and 21% stronger than those of the Gd0.94Eu0.06VO4 and Y0.94Eu0.06VO4 phosphors, respectively. We demonstrated that the addition of Zn to R0.94Eu0.06VO4 was quite effective for improving the photoluminescent properties.

引用

页码：13 / 17

页数：5

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