SPRAY PYROLYSIS OF MANGANESE DOPED ZINC SILICATE PHOSPHOR PARTICLES

Author:

NAM SANG-HUN1,KIM MYOUNG-HWA1,LEE JUN-YONG1,LEE SANG DUCK1,BOO JIN-HYO1

Affiliation:

1. Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Republic of Korea

Abstract

Spherical-shape Zn 2 SiO 4: Mn phosphor particles with the mean particle size from submicron to micron sizes were prepared by ultrasonic spray pyrolysis method. A droplet separator was introduced to control the size distribution of the phosphor particles with spherical shape. The Zn 2 SiO 4: Mn phosphor particles with 2 mol% doping concentration of manganese have decay time and have photoluminescence intensities comparable with those of the latest commercial product prepared by the solid state reaction method. The size of the phosphor particles was decreased from 1000 to 200 nm as the inorganic salt solution concentration was changed from 0 to 5 M. The phosphor particles prepared from the solutions above 0.5 M have photoluminescence intensities comparable with that of the latest commercial product.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Materials Science

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