A study on the luminescent properties of new green-emitting terbium-activated CaIn2O4:xTb phosphors

F. S. Kao, Teng-Ming Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Calcium indate phosphors have been prepared by solid-state reactions at 1400°C. This indate matrix permits photoluminescence when doped with terbium. It was found that under ultraviolet excitation with a wavelength of 254nm the phosphors revealed yellowish green luminescence that was attributed to the transitions from 5D4 excited state to 7FJ multiplet ground states of Tb3+ ions. The powder X-ray diffraction, photoluminescence spectra, brightness, fluorescence decay lifetime, and chromatic characteristics of the Tb3+-activated CaIn2O4 phosphors were systematically investigated and reported.

Original languageEnglish
Pages (from-to)261-267
Number of pages7
JournalJournal of Luminescence
Volume96
Issue number2-4
DOIs
StatePublished - 1 Mar 2002

Keywords

  • CaInO:xTb phosphor
  • CIE coordinates decay lifetime
  • Photoluminescence spectra

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