Efficiency and thermal stability enhancements of Sr 2SiO 4

Eu 2+ phosphor via Bi 3+ codoping for solid-state white lighting

Seung Hyok Park, Ho Shin Yoon, Hye Min Boo, Ho Gyeom Jang, Kyoung Hwa Lee, Won Bin Im

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Bi and Eu-codoped yellow-emitting phosphors of composition Sr 1.95-xEu 0.05Bi xSiO 4 were prepared, and their emission and thermal quenching characteristics were investigated. The initial PL intensity and thermal quenching behaviors of Sr 1.95-xEu 0.05Bi xSiO 4 were affected by the Bicodoping as a coactivator. When 0.01 mol% of Bi was codoped to Sr 1.95-xEu 0.05Bi xSiO 4, it showed an intense emission peak at 543nm under 450nm excitation. The peak intensity corresponds to a relative intensity of 112% of a commercial Sr 2SiO 4:Eu 2+ phosphor (Force4 Corp.), which may be attributed to energy transfer between Bi 3+ and Eu 2+. The results suggest that phosphors deriving from Sr 1.95-xEu 0.05Bi xSiO 4 will be a breakthrough for white light emitting diode (LEDs) and related applications in terms of efficiency enhancement and thermal stability.

Original languageEnglish
Article number022602
JournalJapanese Journal of Applied Physics
Volume51
Issue number2 PART 1
DOIs
Publication statusPublished - 2012 Feb 1

Fingerprint

Phosphors
illuminating
phosphors
Thermodynamic stability
thermal stability
Lighting
solid state
augmentation
Quenching
quenching
Energy transfer
Light emitting diodes
light emitting diodes
energy transfer
Chemical analysis
excitation
Hot Temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Efficiency and thermal stability enhancements of Sr 2SiO 4 : Eu 2+ phosphor via Bi 3+ codoping for solid-state white lighting. / Park, Seung Hyok; Yoon, Ho Shin; Boo, Hye Min; Jang, Ho Gyeom; Lee, Kyoung Hwa; Im, Won Bin.

In: Japanese Journal of Applied Physics, Vol. 51, No. 2 PART 1, 022602, 01.02.2012.

Research output: Contribution to journalArticle

Park, Seung Hyok ; Yoon, Ho Shin ; Boo, Hye Min ; Jang, Ho Gyeom ; Lee, Kyoung Hwa ; Im, Won Bin. / Efficiency and thermal stability enhancements of Sr 2SiO 4 : Eu 2+ phosphor via Bi 3+ codoping for solid-state white lighting. In: Japanese Journal of Applied Physics. 2012 ; Vol. 51, No. 2 PART 1.
@article{98b39ffb85874e82a725b28b0a4474dd,
title = "Efficiency and thermal stability enhancements of Sr 2SiO 4: Eu 2+ phosphor via Bi 3+ codoping for solid-state white lighting",
abstract = "Bi and Eu-codoped yellow-emitting phosphors of composition Sr 1.95-xEu 0.05Bi xSiO 4 were prepared, and their emission and thermal quenching characteristics were investigated. The initial PL intensity and thermal quenching behaviors of Sr 1.95-xEu 0.05Bi xSiO 4 were affected by the Bicodoping as a coactivator. When 0.01 mol{\%} of Bi was codoped to Sr 1.95-xEu 0.05Bi xSiO 4, it showed an intense emission peak at 543nm under 450nm excitation. The peak intensity corresponds to a relative intensity of 112{\%} of a commercial Sr 2SiO 4:Eu 2+ phosphor (Force4 Corp.), which may be attributed to energy transfer between Bi 3+ and Eu 2+. The results suggest that phosphors deriving from Sr 1.95-xEu 0.05Bi xSiO 4 will be a breakthrough for white light emitting diode (LEDs) and related applications in terms of efficiency enhancement and thermal stability.",
author = "Park, {Seung Hyok} and Yoon, {Ho Shin} and Boo, {Hye Min} and Jang, {Ho Gyeom} and Lee, {Kyoung Hwa} and Im, {Won Bin}",
year = "2012",
month = "2",
day = "1",
doi = "10.1143/JJAP.51.022602",
language = "English",
volume = "51",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "2 PART 1",

}

TY - JOUR

T1 - Efficiency and thermal stability enhancements of Sr 2SiO 4

T2 - Eu 2+ phosphor via Bi 3+ codoping for solid-state white lighting

AU - Park, Seung Hyok

AU - Yoon, Ho Shin

AU - Boo, Hye Min

AU - Jang, Ho Gyeom

AU - Lee, Kyoung Hwa

AU - Im, Won Bin

PY - 2012/2/1

Y1 - 2012/2/1

N2 - Bi and Eu-codoped yellow-emitting phosphors of composition Sr 1.95-xEu 0.05Bi xSiO 4 were prepared, and their emission and thermal quenching characteristics were investigated. The initial PL intensity and thermal quenching behaviors of Sr 1.95-xEu 0.05Bi xSiO 4 were affected by the Bicodoping as a coactivator. When 0.01 mol% of Bi was codoped to Sr 1.95-xEu 0.05Bi xSiO 4, it showed an intense emission peak at 543nm under 450nm excitation. The peak intensity corresponds to a relative intensity of 112% of a commercial Sr 2SiO 4:Eu 2+ phosphor (Force4 Corp.), which may be attributed to energy transfer between Bi 3+ and Eu 2+. The results suggest that phosphors deriving from Sr 1.95-xEu 0.05Bi xSiO 4 will be a breakthrough for white light emitting diode (LEDs) and related applications in terms of efficiency enhancement and thermal stability.

AB - Bi and Eu-codoped yellow-emitting phosphors of composition Sr 1.95-xEu 0.05Bi xSiO 4 were prepared, and their emission and thermal quenching characteristics were investigated. The initial PL intensity and thermal quenching behaviors of Sr 1.95-xEu 0.05Bi xSiO 4 were affected by the Bicodoping as a coactivator. When 0.01 mol% of Bi was codoped to Sr 1.95-xEu 0.05Bi xSiO 4, it showed an intense emission peak at 543nm under 450nm excitation. The peak intensity corresponds to a relative intensity of 112% of a commercial Sr 2SiO 4:Eu 2+ phosphor (Force4 Corp.), which may be attributed to energy transfer between Bi 3+ and Eu 2+. The results suggest that phosphors deriving from Sr 1.95-xEu 0.05Bi xSiO 4 will be a breakthrough for white light emitting diode (LEDs) and related applications in terms of efficiency enhancement and thermal stability.

UR - http://www.scopus.com/inward/record.url?scp=84863164997&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863164997&partnerID=8YFLogxK

U2 - 10.1143/JJAP.51.022602

DO - 10.1143/JJAP.51.022602

M3 - Article

VL - 51

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 2 PART 1

M1 - 022602

ER -