Controlled synthesis and improved luminescent properties of (Gd1-x,Eux)3GaO6 phosphors fabricated via spray pyrolysis

Sungho Choi; Kyoungun Kim; Sahn Nahm; Ha Kyun Jung

doi:10.1016/j.optmat.2009.04.007

Controlled synthesis and improved luminescent properties of (Gd_1-x,Eu_x)₃GaO₆ phosphors fabricated via spray pyrolysis

Sungho Choi, Kyoungun Kim, Sahn Nahm, Ha Kyun Jung

Department of Materials Science and Engineering

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

5 Citations (Scopus)

Abstract

Eu³⁺ activated trigadolinium gallate, Gd₃GaO₆:Eu, was successfully synthesized using various aqueous solutions via ultrasonic spray pyrolysis. The corresponding phosphors illuminated an efficient red emission under Hg-discharge condition with enhanced color purity, which is related to prominent peaks centered at 615 and 629 nm induced by the electric dipole transition of ⁵D₀ →⁷F₂ of Eu³⁺. By using a proper Ga source for aqueous solution, especially gallium sulfate, uniformly distributed Gd₃GaO₆:Eu³⁺ phosphor with controlled morphology and enhanced emission efficiency was obtained.

Original language	English
Pages (from-to)	1684-1687
Number of pages	4
Journal	Optical Materials
Volume	31
Issue number	11
DOIs	https://doi.org/10.1016/j.optmat.2009.04.007
Publication status	Published - 2009 Sept

Keywords

Phosphor
Photoluminescence
Spray pyrolysis

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/j.optmat.2009.04.007

Cite this

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title = "Controlled synthesis and improved luminescent properties of (Gd1-x,Eux)3GaO6 phosphors fabricated via spray pyrolysis",

abstract = "Eu3+ activated trigadolinium gallate, Gd3GaO6:Eu, was successfully synthesized using various aqueous solutions via ultrasonic spray pyrolysis. The corresponding phosphors illuminated an efficient red emission under Hg-discharge condition with enhanced color purity, which is related to prominent peaks centered at 615 and 629 nm induced by the electric dipole transition of 5D0 → 7F2 of Eu3+. By using a proper Ga source for aqueous solution, especially gallium sulfate, uniformly distributed Gd3GaO6:Eu3+ phosphor with controlled morphology and enhanced emission efficiency was obtained.",

keywords = "Phosphor, Photoluminescence, Spray pyrolysis",

author = "Sungho Choi and Kyoungun Kim and Sahn Nahm and Jung, {Ha Kyun}",

year = "2009",

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T1 - Controlled synthesis and improved luminescent properties of (Gd1-x,Eux)3GaO6 phosphors fabricated via spray pyrolysis

AU - Choi, Sungho

AU - Kim, Kyoungun

AU - Nahm, Sahn

AU - Jung, Ha Kyun

PY - 2009/9

Y1 - 2009/9

N2 - Eu3+ activated trigadolinium gallate, Gd3GaO6:Eu, was successfully synthesized using various aqueous solutions via ultrasonic spray pyrolysis. The corresponding phosphors illuminated an efficient red emission under Hg-discharge condition with enhanced color purity, which is related to prominent peaks centered at 615 and 629 nm induced by the electric dipole transition of 5D0 → 7F2 of Eu3+. By using a proper Ga source for aqueous solution, especially gallium sulfate, uniformly distributed Gd3GaO6:Eu3+ phosphor with controlled morphology and enhanced emission efficiency was obtained.

AB - Eu3+ activated trigadolinium gallate, Gd3GaO6:Eu, was successfully synthesized using various aqueous solutions via ultrasonic spray pyrolysis. The corresponding phosphors illuminated an efficient red emission under Hg-discharge condition with enhanced color purity, which is related to prominent peaks centered at 615 and 629 nm induced by the electric dipole transition of 5D0 → 7F2 of Eu3+. By using a proper Ga source for aqueous solution, especially gallium sulfate, uniformly distributed Gd3GaO6:Eu3+ phosphor with controlled morphology and enhanced emission efficiency was obtained.

KW - Phosphor

KW - Photoluminescence

KW - Spray pyrolysis

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