Photoluminescence enhancement of red-emitting GdVO4:Eu and YVO4:Eu phosphors by adding zinc
来源期刊：JOURNAL OF RARE EARTHS2013年第1期
论文作者：K.Park J.Kim K.Y.Kim J.Y.Kim Y.Kim S.J.Dhoble
文章页码：13 - 17
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 I41/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.
K.Park1，J.Kim1，K.Y.Kim1，J.Y.Kim2，Y.Kim3，S.J.Dhoble4
1. Faculty of Nanotechnology and Advanced Materials Engineering,Sejong University2. Department of Advanced Materials Engineering,Hoseo University3. Department of Chemistry and Institute of Basic Sciences,Dankook University4. Department of Physics,R.T.M. Nagpur University
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 I41/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.
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