Improvement of brightness of Gd2O3:Eu phosphor particles using boric acid flux in the spray pyrolysis

Yun Chan Kang, Hyun Sook Roh, Seung Bin Park

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Gd2O3:Eu phosphor particles of high brightness were directly prepared by the spray pyrolysis from solution with boric acid flux. The particles prepared from solutions with boric acid flux had higher photoluminescence (PL) intensities than that of particles prepared from solution without flux. The particles prepared from the solution of 10 wt% boric acid had the highest PL intensity, which was higher by 43% than that of the particles prepared from solution without flux. The roles of boric acid flux in improving PL intensity of Gd2O3:Eu phosphor particles in the spray pyrolysis were to promote crystal growth and to reduce surface defect of particles. They were different from ones in solid state reaction.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume39
Issue number1 A/B
Publication statusPublished - 2000 Jan 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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