Characteristics of Y3Al5O12:Ce phosphor powders prepared by spray pyrolysis from ethylenediaminetetraacetic acid solution

Sang Ho Lee, Hye Young Koo, Su Min Lee, Yun Chan Kang

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Nanometer and submicron-sized YAG:Ce phosphor powders were prepared by spray pyrolysis from the spray solutions with ethylenediaminetetraacetic acid (EDTA). The precursor powders with hollow and thin wall structure turned to the fine-sized YAG:Ce phosphor powders after post-treatment at high temperatures of 1400 and 1500 °C. The mean size of the phosphor powders post-treated at a temperature of 1500 °C was 0.72 μm. The white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C showed (0.2781, 0.2871) and (0.2731, 0.2795) on the CIE chromaticity diagram, and about 78.20 and 79.04 of Ra. The luminous efficiency of the white LED formed from the commercial YAG:Ce phosphor powders was 84.36 lm/W. However, the luminous efficiencies of the white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C were 47.74 and 76.64 lm/W.

Original languageEnglish
Pages (from-to)611-615
Number of pages5
JournalCeramics International
Volume36
Issue number2
DOIs
Publication statusPublished - 2010 Mar 1
Externally publishedYes

Fingerprint

Spray pyrolysis
Ethylenediaminetetraacetic acid
Edetic Acid
Phosphors
Powders
Light emitting diodes
yttrium-aluminum-garnet
Temperature

Keywords

  • A. Powders-chemical preparation
  • A. Powders-gas phase reaction

ASJC Scopus subject areas

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

Cite this

Characteristics of Y3Al5O12:Ce phosphor powders prepared by spray pyrolysis from ethylenediaminetetraacetic acid solution. / Lee, Sang Ho; Koo, Hye Young; Lee, Su Min; Kang, Yun Chan.

In: Ceramics International, Vol. 36, No. 2, 01.03.2010, p. 611-615.

Research output: Contribution to journalArticle

@article{2e0d267b9d0c4b26906f172adda3409e,
title = "Characteristics of Y3Al5O12:Ce phosphor powders prepared by spray pyrolysis from ethylenediaminetetraacetic acid solution",
abstract = "Nanometer and submicron-sized YAG:Ce phosphor powders were prepared by spray pyrolysis from the spray solutions with ethylenediaminetetraacetic acid (EDTA). The precursor powders with hollow and thin wall structure turned to the fine-sized YAG:Ce phosphor powders after post-treatment at high temperatures of 1400 and 1500 °C. The mean size of the phosphor powders post-treated at a temperature of 1500 °C was 0.72 μm. The white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C showed (0.2781, 0.2871) and (0.2731, 0.2795) on the CIE chromaticity diagram, and about 78.20 and 79.04 of Ra. The luminous efficiency of the white LED formed from the commercial YAG:Ce phosphor powders was 84.36 lm/W. However, the luminous efficiencies of the white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C were 47.74 and 76.64 lm/W.",
keywords = "A. Powders-chemical preparation, A. Powders-gas phase reaction",
author = "Lee, {Sang Ho} and Koo, {Hye Young} and Lee, {Su Min} and Kang, {Yun Chan}",
year = "2010",
month = "3",
day = "1",
doi = "10.1016/j.ceramint.2009.09.041",
language = "English",
volume = "36",
pages = "611--615",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Characteristics of Y3Al5O12:Ce phosphor powders prepared by spray pyrolysis from ethylenediaminetetraacetic acid solution

AU - Lee, Sang Ho

AU - Koo, Hye Young

AU - Lee, Su Min

AU - Kang, Yun Chan

PY - 2010/3/1

Y1 - 2010/3/1

N2 - Nanometer and submicron-sized YAG:Ce phosphor powders were prepared by spray pyrolysis from the spray solutions with ethylenediaminetetraacetic acid (EDTA). The precursor powders with hollow and thin wall structure turned to the fine-sized YAG:Ce phosphor powders after post-treatment at high temperatures of 1400 and 1500 °C. The mean size of the phosphor powders post-treated at a temperature of 1500 °C was 0.72 μm. The white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C showed (0.2781, 0.2871) and (0.2731, 0.2795) on the CIE chromaticity diagram, and about 78.20 and 79.04 of Ra. The luminous efficiency of the white LED formed from the commercial YAG:Ce phosphor powders was 84.36 lm/W. However, the luminous efficiencies of the white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C were 47.74 and 76.64 lm/W.

AB - Nanometer and submicron-sized YAG:Ce phosphor powders were prepared by spray pyrolysis from the spray solutions with ethylenediaminetetraacetic acid (EDTA). The precursor powders with hollow and thin wall structure turned to the fine-sized YAG:Ce phosphor powders after post-treatment at high temperatures of 1400 and 1500 °C. The mean size of the phosphor powders post-treated at a temperature of 1500 °C was 0.72 μm. The white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C showed (0.2781, 0.2871) and (0.2731, 0.2795) on the CIE chromaticity diagram, and about 78.20 and 79.04 of Ra. The luminous efficiency of the white LED formed from the commercial YAG:Ce phosphor powders was 84.36 lm/W. However, the luminous efficiencies of the white LEDs formed from the YAG:Ce phosphor powders post-treated at 1400 and 1500 °C were 47.74 and 76.64 lm/W.

KW - A. Powders-chemical preparation

KW - A. Powders-gas phase reaction

UR - http://www.scopus.com/inward/record.url?scp=71849114675&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71849114675&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2009.09.041

DO - 10.1016/j.ceramint.2009.09.041

M3 - Article

VL - 36

SP - 611

EP - 615

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 2

ER -