Enhanced photoluminescence property of Dy3+ co-doped BaAl 2O4:Eu2+ green phosphors

Hee Suk Roh; In Sun Cho; Jae Sul An; Chin Moo Cho; Tae Hoon Noh; Dong Kyun Yim; Dong Wan Kim; Kug Sun Hong

doi:10.1016/j.ceramint.2011.07.025

Enhanced photoluminescence property of Dy³⁺ co-doped BaAl ₂O₄:Eu²⁺ green phosphors

Hee Suk Roh, In Sun Cho, Jae Sul An, Chin Moo Cho, Tae Hoon Noh, Dong Kyun Yim, Dong Wan Kim, Kug Sun Hong

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

38 Citations (Scopus)

Abstract

Eu²⁺-doped BaAl₂O₄ green phosphors were prepared by a conventional solid-state reaction and the effects of Dy ³⁺ co-doping on the photoluminescence property were investigated. The phosphors were characterized by X-ray powder diffraction (XRD), fluorescence spectroscopy, field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). XRD showed that all prepared samples exhibited a hexagonal BaAl₂O₄ phase. Fluorescence spectroscopy showed that the photoluminescence efficiency increased with increasing Eu ²⁺ concentration until 3 mol% then decreased at higher concentrations due to concentration quenching effect. Moreover, Dy³⁺ co-doping increased the photoluminescence efficiency of the Eu²⁺-doped BaAl₂O₄ phosphor.

Original language	English
Pages (from-to)	443-447
Number of pages	5
Journal	Ceramics International
Volume	38
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2011.07.025
Publication status	Published - 2012 Jan
Externally published	Yes

Bibliographical note

Funding Information:
This work was partly supported by the IT R&D program of MKE/IITA [2009-F-020-01, Development of Red nitride phosphor and self-assembly phosphorescent layer packaging technology for high rendition LED illumination] and Ajou University research fellowship of 2010 (S-2010-G0001-00059).

Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.

Keywords

BaAlO:Eu
Dy co-doping effects
Optimum concentration
Phosphor
Photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2011.07.025

Cite this

@article{9d185b6bb608442f9627e420f7e01ac5,

title = "Enhanced photoluminescence property of Dy3+ co-doped BaAl 2O4:Eu2+ green phosphors",

abstract = "Eu2+-doped BaAl2O4 green phosphors were prepared by a conventional solid-state reaction and the effects of Dy 3+ co-doping on the photoluminescence property were investigated. The phosphors were characterized by X-ray powder diffraction (XRD), fluorescence spectroscopy, field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). XRD showed that all prepared samples exhibited a hexagonal BaAl2O4 phase. Fluorescence spectroscopy showed that the photoluminescence efficiency increased with increasing Eu 2+ concentration until 3 mol% then decreased at higher concentrations due to concentration quenching effect. Moreover, Dy3+ co-doping increased the photoluminescence efficiency of the Eu2+-doped BaAl2O4 phosphor.",

keywords = "BaAlO:Eu, Dy co-doping effects, Optimum concentration, Phosphor, Photoluminescence",

author = "Roh, {Hee Suk} and Cho, {In Sun} and An, {Jae Sul} and Cho, {Chin Moo} and Noh, {Tae Hoon} and Yim, {Dong Kyun} and Kim, {Dong Wan} and Hong, {Kug Sun}",

note = "Funding Information: This work was partly supported by the IT R&D program of MKE/IITA [2009-F-020-01, Development of Red nitride phosphor and self-assembly phosphorescent layer packaging technology for high rendition LED illumination] and Ajou University research fellowship of 2010 (S-2010-G0001-00059). Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2012",

month = jan,

doi = "10.1016/j.ceramint.2011.07.025",

language = "English",

volume = "38",

pages = "443--447",

journal = "Ceramics International",

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AU - Roh, Hee Suk

AU - Cho, In Sun

AU - An, Jae Sul

AU - Cho, Chin Moo

AU - Noh, Tae Hoon

AU - Yim, Dong Kyun

AU - Kim, Dong Wan

AU - Hong, Kug Sun

N1 - Funding Information: This work was partly supported by the IT R&D program of MKE/IITA [2009-F-020-01, Development of Red nitride phosphor and self-assembly phosphorescent layer packaging technology for high rendition LED illumination] and Ajou University research fellowship of 2010 (S-2010-G0001-00059). Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2012/1

Y1 - 2012/1

N2 - Eu2+-doped BaAl2O4 green phosphors were prepared by a conventional solid-state reaction and the effects of Dy 3+ co-doping on the photoluminescence property were investigated. The phosphors were characterized by X-ray powder diffraction (XRD), fluorescence spectroscopy, field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). XRD showed that all prepared samples exhibited a hexagonal BaAl2O4 phase. Fluorescence spectroscopy showed that the photoluminescence efficiency increased with increasing Eu 2+ concentration until 3 mol% then decreased at higher concentrations due to concentration quenching effect. Moreover, Dy3+ co-doping increased the photoluminescence efficiency of the Eu2+-doped BaAl2O4 phosphor.

AB - Eu2+-doped BaAl2O4 green phosphors were prepared by a conventional solid-state reaction and the effects of Dy 3+ co-doping on the photoluminescence property were investigated. The phosphors were characterized by X-ray powder diffraction (XRD), fluorescence spectroscopy, field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). XRD showed that all prepared samples exhibited a hexagonal BaAl2O4 phase. Fluorescence spectroscopy showed that the photoluminescence efficiency increased with increasing Eu 2+ concentration until 3 mol% then decreased at higher concentrations due to concentration quenching effect. Moreover, Dy3+ co-doping increased the photoluminescence efficiency of the Eu2+-doped BaAl2O4 phosphor.

KW - BaAlO:Eu

KW - Dy co-doping effects

KW - Optimum concentration

KW - Phosphor

KW - Photoluminescence

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