Origin of PL intensity increase of CaMgSi2O6:Eu 2+ phosphor after baking process for PDPs application

W. B. Im; J. H. Kang; D. C. Lee; S. Lee; D. Y. Jeon; Y. C. Kang; K. Y. Jung

doi:10.1016/j.ssc.2004.10.016

Origin of PL intensity increase of CaMgSi₂O₆:Eu ²⁺ phosphor after baking process for PDPs application

W. B. Im, J. H. Kang, D. C. Lee, S. Lee, D. Y. Jeon, Y. C. Kang, K. Y. Jung

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

70 Citations (Scopus)

Abstract

We have synthesized blue-emitting CaMgSi₂O₆:Eu ²⁺ (CMS) and evaluated its thermal stability after baking process. To evaluate its thermal stability, CMS was baked in air at 500 and 600°C for 20 min, respectively, and compared with BaMgAl₁₀O ₁₇:Eu²⁺ (BAM) treated in the same condition. After baking process, CMS showed somewhat increased photoluminescence (PL) intensity with baking temperature. To investigate the reasons behind the increase of PL intensity after baking process, vacuum ultraviolet (VUV)/PL, electron spin resonance (ESR), X-ray photoelectron spectroscopy (XPS) techniques were applied. From the ESR and the XPS analyses, it is noted that spectral intensity of Eu²⁺ ion somewhat increased. It was believed that due to charge balance Eu³⁺ ions reduced to Eu²⁺ ions during the baking process in air. It is clear that the concentration of Eu²⁺ increased after the baking process in air and it leads to slight increase of the VUV/PL intensity of CMS phosphor.

Original language	English
Pages (from-to)	197-201
Number of pages	5
Journal	Solid State Communications
Volume	133
Issue number	3
DOIs	https://doi.org/10.1016/j.ssc.2004.10.016
Publication status	Published - 2005 Jan
Externally published	Yes

Keywords

A. CaMgSiO:Eu
A. Phosphor
D. Optical properties
E. Luminescence

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2004.10.016

Cite this

@article{3c8cc9ca79a04e7fa757724f2bf3d9a4,

title = "Origin of PL intensity increase of CaMgSi2O6:Eu 2+ phosphor after baking process for PDPs application",

abstract = "We have synthesized blue-emitting CaMgSi2O6:Eu 2+ (CMS) and evaluated its thermal stability after baking process. To evaluate its thermal stability, CMS was baked in air at 500 and 600°C for 20 min, respectively, and compared with BaMgAl10O 17:Eu2+ (BAM) treated in the same condition. After baking process, CMS showed somewhat increased photoluminescence (PL) intensity with baking temperature. To investigate the reasons behind the increase of PL intensity after baking process, vacuum ultraviolet (VUV)/PL, electron spin resonance (ESR), X-ray photoelectron spectroscopy (XPS) techniques were applied. From the ESR and the XPS analyses, it is noted that spectral intensity of Eu2+ ion somewhat increased. It was believed that due to charge balance Eu3+ ions reduced to Eu2+ ions during the baking process in air. It is clear that the concentration of Eu2+ increased after the baking process in air and it leads to slight increase of the VUV/PL intensity of CMS phosphor.",

keywords = "A. CaMgSiO:Eu, A. Phosphor, D. Optical properties, E. Luminescence",

author = "Im, {W. B.} and Kang, {J. H.} and Lee, {D. C.} and S. Lee and Jeon, {D. Y.} and Kang, {Y. C.} and Jung, {K. Y.}",

note = "Funding Information: This research was supported by a grant (M1-02-KR-01-0001-03-K18-01-025-1-3) from Information Display R and D Center, one of the 21st Century Frontier R and D Program funded by the Ministry of Science and Technology of Korean government.",

year = "2005",

month = jan,

doi = "10.1016/j.ssc.2004.10.016",

language = "English",

volume = "133",

pages = "197--201",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "3",

}

TY - JOUR

T1 - Origin of PL intensity increase of CaMgSi2O6:Eu 2+ phosphor after baking process for PDPs application

AU - Im, W. B.

AU - Kang, J. H.

AU - Lee, D. C.

AU - Lee, S.

AU - Jeon, D. Y.

AU - Kang, Y. C.

AU - Jung, K. Y.

N1 - Funding Information: This research was supported by a grant (M1-02-KR-01-0001-03-K18-01-025-1-3) from Information Display R and D Center, one of the 21st Century Frontier R and D Program funded by the Ministry of Science and Technology of Korean government.

PY - 2005/1

Y1 - 2005/1

N2 - We have synthesized blue-emitting CaMgSi2O6:Eu 2+ (CMS) and evaluated its thermal stability after baking process. To evaluate its thermal stability, CMS was baked in air at 500 and 600°C for 20 min, respectively, and compared with BaMgAl10O 17:Eu2+ (BAM) treated in the same condition. After baking process, CMS showed somewhat increased photoluminescence (PL) intensity with baking temperature. To investigate the reasons behind the increase of PL intensity after baking process, vacuum ultraviolet (VUV)/PL, electron spin resonance (ESR), X-ray photoelectron spectroscopy (XPS) techniques were applied. From the ESR and the XPS analyses, it is noted that spectral intensity of Eu2+ ion somewhat increased. It was believed that due to charge balance Eu3+ ions reduced to Eu2+ ions during the baking process in air. It is clear that the concentration of Eu2+ increased after the baking process in air and it leads to slight increase of the VUV/PL intensity of CMS phosphor.

AB - We have synthesized blue-emitting CaMgSi2O6:Eu 2+ (CMS) and evaluated its thermal stability after baking process. To evaluate its thermal stability, CMS was baked in air at 500 and 600°C for 20 min, respectively, and compared with BaMgAl10O 17:Eu2+ (BAM) treated in the same condition. After baking process, CMS showed somewhat increased photoluminescence (PL) intensity with baking temperature. To investigate the reasons behind the increase of PL intensity after baking process, vacuum ultraviolet (VUV)/PL, electron spin resonance (ESR), X-ray photoelectron spectroscopy (XPS) techniques were applied. From the ESR and the XPS analyses, it is noted that spectral intensity of Eu2+ ion somewhat increased. It was believed that due to charge balance Eu3+ ions reduced to Eu2+ ions during the baking process in air. It is clear that the concentration of Eu2+ increased after the baking process in air and it leads to slight increase of the VUV/PL intensity of CMS phosphor.

KW - A. CaMgSiO:Eu

KW - A. Phosphor

KW - D. Optical properties

KW - E. Luminescence

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DO - 10.1016/j.ssc.2004.10.016

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