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Sintering temperature effect and luminescent properties of Dy3+:YAG nanophosphor

G. SEETA RAMA RAJU1, HONG CHAE JUNG1, JIN YOUNG PARK1, JONG WON CHUNG1, BYUNG KEE MOON1,* , JUNG HYUN JEONG1, SE-MO SON2, JUNG HWAN KIM3

Affiliation

  1. Department of Physics, Pukyong National University, Busan 608-737, Republic of Korea
  2. Division of Image science and Information Engineering, Pukyong National University, Busan, 608739,Republic of Korea
  3. Department of Physics, Dong Eui University, Busan 614-714,Republic Korea

Abstract

A series of Dy3+ ions activated YAG nanophosphors have been prepared by means of solvothermal process and sintered at various temperatures. The crystalline structure and morphology of the samples were investigated by X-ray diffraction and scanning electron microscopy measurements. The synthesis, structural and luminescent properties along with chromaticity coordinates of the nanophosphor samples with the compositions xDy: Y(3-x)Al5O12 (x=0.5 to 5 mol%) are featured in this paper. Furthermore, the yellow to blue intensity ratio of Dy3+ ions activated YAG system nanophosphors varies from 0.71 to 0.54. Such luminescent powders are expected to find potential applications such as optical display systems and lamps..

Keywords

Optical materials, Thermogravimetric analysis (TGA), X-ray diffraction, Luminescence.

Submitted at: Nov. 23, 2009
Accepted at: June 16, 2010

Citation

G. SEETA RAMA RAJU, HONG CHAE JUNG, JIN YOUNG PARK, JONG WON CHUNG, BYUNG KEE MOON, JUNG HYUN JEONG, SE-MO SON, JUNG HWAN KIM, Sintering temperature effect and luminescent properties of Dy3+:YAG nanophosphor, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 6, pp. 1273-1278 (2010)