Preparation of αGd2(MoO4)3 red emitting phosphor for white light emitting diodes and its luminescence study

Xiao Xia Zhao; Xiao Jun Wang; Bao Jiu Chen; Qing Yu Meng; Bin Yan; Wei Hua Di

Preparation of αGd₂(MoO₄)₃ red emitting phosphor for white light emitting diodes and its luminescence study

Xiao Xia Zhao, Xiao Jun Wang, Bao Jiu Chen, Qing Yu Meng, Bin Yan, Wei Hua Di

Biochemistry, Chemistry, & Physics

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

12 Scopus citations

Abstract

A novel red phosphor α-Gd₂ (M0O4)₃:Eu was synthesized by conventional solid state reaction method with the starting materials: Gd₂O₃, MoO₃ and Eu₂O₃. The effects of flux and Eu concentration on the crystal structure, morphology and luminescent properties of the phosphors were investigated. The results showed that non-agglomeration phosphors with regular morphology and fine size were produced after the mixture being calcined at 800°C for 4 h with 3% NH₄F as flux. The main emission peak of the samples is at 613 nm. The excitation spectrum showed that this phosphor can be effectively excited by ultraviolet (UVX395 nm) and blue (465 nm) light, nicely fitting in with the widely applied output wavelengths of ultraviolet or blue LED chips. The α-Gd₂(MoO₄)₃ phosphor may be a good candidate phosphor for solid state lighting application.

Original language	English
Pages (from-to)	629-633
Number of pages	5
Journal	Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Volume	27
Issue number	4
State	Published - Apr 2007

Keywords

Eu White LED
Flux
Red emitting phosphor

Cite this

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title = "Preparation of αGd2(MoO4)3 red emitting phosphor for white light emitting diodes and its luminescence study",

abstract = "A novel red phosphor α-Gd2 (M0O4)3:Eu was synthesized by conventional solid state reaction method with the starting materials: Gd2O3, MoO3 and Eu2O3. The effects of flux and Eu concentration on the crystal structure, morphology and luminescent properties of the phosphors were investigated. The results showed that non-agglomeration phosphors with regular morphology and fine size were produced after the mixture being calcined at 800°C for 4 h with 3% NH4F as flux. The main emission peak of the samples is at 613 nm. The excitation spectrum showed that this phosphor can be effectively excited by ultraviolet (UVX395 nm) and blue (465 nm) light, nicely fitting in with the widely applied output wavelengths of ultraviolet or blue LED chips. The α-Gd2(MoO4)3 phosphor may be a good candidate phosphor for solid state lighting application.",

keywords = "Eu White LED, Flux, Red emitting phosphor",

author = "Zhao, {Xiao Xia} and Wang, {Xiao Jun} and Chen, {Bao Jiu} and Meng, {Qing Yu} and Bin Yan and Di, {Wei Hua}",

year = "2007",

month = apr,

language = "English",

volume = "27",

pages = "629--633",

journal = "Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis",

issn = "1000-0593",

publisher = "Science China Press",

number = "4",

}

TY - JOUR

T1 - Preparation of αGd2(MoO4)3 red emitting phosphor for white light emitting diodes and its luminescence study

AU - Zhao, Xiao Xia

AU - Wang, Xiao Jun

AU - Chen, Bao Jiu

AU - Meng, Qing Yu

AU - Yan, Bin

AU - Di, Wei Hua

PY - 2007/4

Y1 - 2007/4

N2 - A novel red phosphor α-Gd2 (M0O4)3:Eu was synthesized by conventional solid state reaction method with the starting materials: Gd2O3, MoO3 and Eu2O3. The effects of flux and Eu concentration on the crystal structure, morphology and luminescent properties of the phosphors were investigated. The results showed that non-agglomeration phosphors with regular morphology and fine size were produced after the mixture being calcined at 800°C for 4 h with 3% NH4F as flux. The main emission peak of the samples is at 613 nm. The excitation spectrum showed that this phosphor can be effectively excited by ultraviolet (UVX395 nm) and blue (465 nm) light, nicely fitting in with the widely applied output wavelengths of ultraviolet or blue LED chips. The α-Gd2(MoO4)3 phosphor may be a good candidate phosphor for solid state lighting application.

AB - A novel red phosphor α-Gd2 (M0O4)3:Eu was synthesized by conventional solid state reaction method with the starting materials: Gd2O3, MoO3 and Eu2O3. The effects of flux and Eu concentration on the crystal structure, morphology and luminescent properties of the phosphors were investigated. The results showed that non-agglomeration phosphors with regular morphology and fine size were produced after the mixture being calcined at 800°C for 4 h with 3% NH4F as flux. The main emission peak of the samples is at 613 nm. The excitation spectrum showed that this phosphor can be effectively excited by ultraviolet (UVX395 nm) and blue (465 nm) light, nicely fitting in with the widely applied output wavelengths of ultraviolet or blue LED chips. The α-Gd2(MoO4)3 phosphor may be a good candidate phosphor for solid state lighting application.

KW - Eu White LED

KW - Flux

KW - Red emitting phosphor

UR - http://www.scopus.com/inward/record.url?scp=34249847871&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:34249847871

SN - 1000-0593

VL - 27

SP - 629

EP - 633

JO - Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

JF - Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

IS - 4

ER -

Preparation of αGd₂(MoO₄)₃ red emitting phosphor for white light emitting diodes and its luminescence study

Abstract

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