Blue-light emission from undoped and rare earth-doped wide bandgap oxides

Jianhua Hao, Guogeng He, Xiongwu Huang, Rui Wu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

Rare earth-doped oxide thin-film phosphors may emerge as an alternate choice for the blue phosphor, due to their chemical and thermal stability in high vacuum and absence of corrosive gas emission under electron bombardment. The blue phosphors in this study were activated in air at temperatures suitable for glass substrates, which have been used in a number of applications. The effects of rare earth ions and oxide hosts on the blue-light-emitting properties of phosphors are discussed. In addition, novel blue-light emission was observed in certain typical undoped wide bandgap oxides. The luminescence of the oxides depends on the growth and annealing conditions under different atmospheres, suggesting that it is associated with the presence of oxygen vacancies. Radiative processes related to oxygen vacancies were also presented.
Original languageEnglish
Pages (from-to)728-731
Number of pages4
JournalJournal of Rare Earths
Volume24
Issue number6
DOIs
Publication statusPublished - 1 Jan 2006
Externally publishedYes

Keywords

  • Blue light
  • Luminescence
  • Oxide
  • Rare earths
  • Wide bandgap

ASJC Scopus subject areas

  • Chemistry(all)
  • Geochemistry and Petrology

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