VUV photoluminescence of (Y0.5Gd0.5)0.94VO4:Eu3+ red-emitting phosphors prepared by the solution combustion method

[Display omitted] ► We synthesize high-quality (Y0.5Gd0.5)0.94Eu0.06VO4 powders by combustion method. ► (Y0.5Gd0.5)0.94Eu0.06VO4 phosphors show a highly strong and pure red emission. ► (Y0.5Gd0.5)0.94Eu0.06VO4 is very useful for PDP applications. Spherical and nano-sized high-quality (Y0.5Gd0.5)0.94...

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Bibliographic Details
Published in:	Materials research bulletin 2012-12, Vol.47 (12), p.4151-4155
Main Authors:	Park, K., Kim, K.Y., Heo, M.H.
Format:	Article
Language:	eng
Subjects:	A. Ceramics A. Oxides C. Electron microscopy D. Optical properties
Online Access:	Get full text
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Summary:	[Display omitted] ► We synthesize high-quality (Y0.5Gd0.5)0.94Eu0.06VO4 powders by combustion method. ► (Y0.5Gd0.5)0.94Eu0.06VO4 phosphors show a highly strong and pure red emission. ► (Y0.5Gd0.5)0.94Eu0.06VO4 is very useful for PDP applications. Spherical and nano-sized high-quality (Y0.5Gd0.5)0.94Eu0.06VO4 phosphor powders (27nm in size) were synthesized by the solution combustion method. The microstructure and VUV photoluminescence properties of the (Y0.5Gd0.5)0.94Eu0.06VO4 were studied, depending on the annealing temperature. The mean sizes of the (Y0.5Gd0.5)0.94Eu0.06VO4 powders increased with an increase in the annealing temperature, i.e., 0.09, 0.95, 2.15, 3.6, and 4.4μm for 600, 800, 1000, 1100, and 1200°C, respectively. The (Y0.5Gd0.5)0.94Eu0.06VO4 phosphors annealed at 1000°C showed both the highest emission intensity and the highest ratio of the 5D0→7F2 to the 5D0→7F1 transition, indicating both the strongest and the purest red light emission.
ISSN:	0025-5408 1873-4227