Enhancement of afterglow in SrAl 2O 4:Eu 2+ long-lasting phosphor with swift heavy ion irradiation

Tianzhuo Zhan, Chao Nan Xu, Hiroshi Yamada, Yujin Terasawa, Lin Zhang, Hiroshi Iwase, Masayoshi Kawai

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We present a novel approach for improving the afterglow of long-lasting phosphors with swift heavy ion irradiation. The afterglow of famous long-lasting phosphor SrAl 2O 4:Eu 2+ was dramatically enhanced with swift heavy ion irradiation. Furthermore, it was found that the enhancement was dependent on the electronic stopping power as well as the irradiation fluence. Thermoluminescence analyses revealed that the SHI irradiation had no significant influence on the trap depth, but increased the trap density in the phosphor. In addition, the mechanism underlying afterglow enhancement phenomenon was discussed.

Original languageEnglish
Pages (from-to)328-332
Number of pages5
JournalRSC Advances
Volume2
Issue number1
DOIs
Publication statusPublished - 2012 Jan 7

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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