Synthesis and characterization of white light emitting CaxSr1-xAl2O4:Tb3+,Eu3+ phosphor for solid state lighting

Samy K.K. Shaat; Hendrik C. Swart; Odireleng M. Ntwaeaborwa

doi:10.1364/OME.2.000962

Synthesis and characterization of white light emitting Ca_xSr_1-xAl₂O₄:Tb³⁺,Eu³⁺ phosphor for solid state lighting

Samy K.K. Shaat, Hendrik C. Swart, Odireleng M. Ntwaeaborwa

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

31 Citations (Scopus)

Abstract

A white light emitting Ca_xSr_1-xAl₂O₄:Tb³⁺;Eu³⁺ phosphor was synthesized by a combustion method using metal nitrates as precursors and urea as a fuel. The X-ray diffraction patterns from the samples showed phases associated with monoclinic structures of CaAl₂O₄ and SrAl₂O₄. White photoluminescence with the CIE coordinates (x = 0.343, y = 0.325) was observed when the phosphor was optically-excited at 227 nm using a monochromatized xenon lamp. The white photoluminescence was a result of the combination of blue and green line emissions from Tb³⁺, and red line emission from Eu³⁺. The structure and photoluminescence properties of this phosphor are reported.

Original language	English
Pages (from-to)	962-968
Number of pages	7
Journal	Optical Materials Express
Volume	2
Issue number	7
DOIs	https://doi.org/10.1364/OME.2.000962
Publication status	Published - Jul 2012
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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title = "Synthesis and characterization of white light emitting CaxSr1-xAl2O4:Tb3+,Eu3+ phosphor for solid state lighting",

abstract = "A white light emitting CaxSr1-xAl2O4:Tb3+;Eu3+ phosphor was synthesized by a combustion method using metal nitrates as precursors and urea as a fuel. The X-ray diffraction patterns from the samples showed phases associated with monoclinic structures of CaAl2O4 and SrAl2O4. White photoluminescence with the CIE coordinates (x = 0.343, y = 0.325) was observed when the phosphor was optically-excited at 227 nm using a monochromatized xenon lamp. The white photoluminescence was a result of the combination of blue and green line emissions from Tb3+, and red line emission from Eu3+. The structure and photoluminescence properties of this phosphor are reported.",

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AU - Shaat, Samy K.K.

AU - Swart, Hendrik C.

AU - Ntwaeaborwa, Odireleng M.

PY - 2012/7

Y1 - 2012/7

N2 - A white light emitting CaxSr1-xAl2O4:Tb3+;Eu3+ phosphor was synthesized by a combustion method using metal nitrates as precursors and urea as a fuel. The X-ray diffraction patterns from the samples showed phases associated with monoclinic structures of CaAl2O4 and SrAl2O4. White photoluminescence with the CIE coordinates (x = 0.343, y = 0.325) was observed when the phosphor was optically-excited at 227 nm using a monochromatized xenon lamp. The white photoluminescence was a result of the combination of blue and green line emissions from Tb3+, and red line emission from Eu3+. The structure and photoluminescence properties of this phosphor are reported.

AB - A white light emitting CaxSr1-xAl2O4:Tb3+;Eu3+ phosphor was synthesized by a combustion method using metal nitrates as precursors and urea as a fuel. The X-ray diffraction patterns from the samples showed phases associated with monoclinic structures of CaAl2O4 and SrAl2O4. White photoluminescence with the CIE coordinates (x = 0.343, y = 0.325) was observed when the phosphor was optically-excited at 227 nm using a monochromatized xenon lamp. The white photoluminescence was a result of the combination of blue and green line emissions from Tb3+, and red line emission from Eu3+. The structure and photoluminescence properties of this phosphor are reported.

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DO - 10.1364/OME.2.000962

M3 - Article

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SP - 962

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JO - Optical Materials Express

JF - Optical Materials Express

IS - 7

ER -

Synthesis and characterization of white light emitting Ca_xSr_1-xAl₂O₄:Tb³⁺,Eu³⁺ phosphor for solid state lighting

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