High brightness LaPO4:Ce,Tb phosphor particles with spherical shape

Yun Chan Kang; Eun Joung Kim; Dong Youl Lee; Hee Dong Park

doi:10.1016/S0925-8388(02)00747-8

High brightness LaPO₄:Ce,Tb phosphor particles with spherical shape

Yun Chan Kang, Eun Joung Kim, Dong Youl Lee, Hee Dong Park

Research output: Contribution to journal › Article › peer-review

103 Citations (Scopus)

Abstract

Green-emitting LaPO₄:Ce,Tb phosphor particles were synthesized by a large-scale spray pyrolysis. The prepared phosphor particles had a completely spherical shape, fine size, and high brightness under ultraviolet. The phosphor particles had the maximum photoluminescence intensity after posttreatment at 1300°C even without flux material. The phosphor particles had a spherical shape and non-aggregation characteristics. The types of phosporous source affected the morphological characteristics and photoluminescence of the prepared particles. Particles prepared from a solution with ammonium hydrogen phosphate had a higher brightness than those prepared from solutions with ammonium dihydrogen phosphate, ammonium phosphate, or phosphoric acid. The maximum brightness of particles prepared by spray pyrolysis was 109% that of the commercial product with non-spherical shape and large size.

Original language	English
Pages (from-to)	266-270
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	347
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(02)00747-8
Publication status	Published - 2002 Dec 16
Externally published	Yes

Keywords

Chemical synthesis
Optical materials
Optical spectroscopy
Rare earth compounds

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0925-8388(02)00747-8

Cite this

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title = "High brightness LaPO4:Ce,Tb phosphor particles with spherical shape",

abstract = "Green-emitting LaPO4:Ce,Tb phosphor particles were synthesized by a large-scale spray pyrolysis. The prepared phosphor particles had a completely spherical shape, fine size, and high brightness under ultraviolet. The phosphor particles had the maximum photoluminescence intensity after posttreatment at 1300°C even without flux material. The phosphor particles had a spherical shape and non-aggregation characteristics. The types of phosporous source affected the morphological characteristics and photoluminescence of the prepared particles. Particles prepared from a solution with ammonium hydrogen phosphate had a higher brightness than those prepared from solutions with ammonium dihydrogen phosphate, ammonium phosphate, or phosphoric acid. The maximum brightness of particles prepared by spray pyrolysis was 109% that of the commercial product with non-spherical shape and large size.",

keywords = "Chemical synthesis, Optical materials, Optical spectroscopy, Rare earth compounds",

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T1 - High brightness LaPO4:Ce,Tb phosphor particles with spherical shape

AU - Kang, Yun Chan

AU - Kim, Eun Joung

AU - Lee, Dong Youl

AU - Park, Hee Dong

PY - 2002/12/16

Y1 - 2002/12/16

N2 - Green-emitting LaPO4:Ce,Tb phosphor particles were synthesized by a large-scale spray pyrolysis. The prepared phosphor particles had a completely spherical shape, fine size, and high brightness under ultraviolet. The phosphor particles had the maximum photoluminescence intensity after posttreatment at 1300°C even without flux material. The phosphor particles had a spherical shape and non-aggregation characteristics. The types of phosporous source affected the morphological characteristics and photoluminescence of the prepared particles. Particles prepared from a solution with ammonium hydrogen phosphate had a higher brightness than those prepared from solutions with ammonium dihydrogen phosphate, ammonium phosphate, or phosphoric acid. The maximum brightness of particles prepared by spray pyrolysis was 109% that of the commercial product with non-spherical shape and large size.

AB - Green-emitting LaPO4:Ce,Tb phosphor particles were synthesized by a large-scale spray pyrolysis. The prepared phosphor particles had a completely spherical shape, fine size, and high brightness under ultraviolet. The phosphor particles had the maximum photoluminescence intensity after posttreatment at 1300°C even without flux material. The phosphor particles had a spherical shape and non-aggregation characteristics. The types of phosporous source affected the morphological characteristics and photoluminescence of the prepared particles. Particles prepared from a solution with ammonium hydrogen phosphate had a higher brightness than those prepared from solutions with ammonium dihydrogen phosphate, ammonium phosphate, or phosphoric acid. The maximum brightness of particles prepared by spray pyrolysis was 109% that of the commercial product with non-spherical shape and large size.

KW - Chemical synthesis

KW - Optical materials

KW - Optical spectroscopy

KW - Rare earth compounds

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