Energy transfer and significant improvement moist stability of BaMgAl 10O17: Eu2+, Mn2+ as a phosphor for white light-emitting diodes

Wei Chih Ke, Chun Che Lin, Ru Shi Liu, Ming Chou Kuo

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

BaMgAl10O17 co-doped with Eu2+ and Mn2+ was synthesized in a solid-state reaction and their luminescence properties were investigated as functions of the concentrations of the sensitizer and activator. The energy transfer from Eu2+ to Mn2+ was mainly of the resonance-type via an electric dipole-quadrupole interaction. Additionally, the addition of various fluxes such as AlF3 and BaF2 in the synthesis improves the moist stability. This is particularly important for the phosphor in white light-emitting diodes (LEDs). The white LEDs with a color rendering index of 95 were fabricated by coating the synthesized phosphors on a UV LED chip to verify the real application capability.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume157
Issue number8
DOIs
Publication statusPublished - Jul 23 2010
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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