Synthesis and optical properties of P5+ co-doped Ba3SiO5:Eu2+ orange persistent phosphor

Seung Hee Choi, Seok Bin Kwon, Usama Bin Humayoun, Won Kyu Park, Kenji Toda, Masato Kakihana, Takaki Masaki, Woo Seok Yang, Young Hyun Song, Dae Ho Yoon

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

By co-doping the P5+ ions into Ba3SiO5:Eu2+, we synthesized new orange persistent phosphor using cellulose assisted liquid phase precursor (LPP) method. The emission spectra showed a typically broad orange emission band centered at 575 nm attributed to the 4f65d1 → 4f7 transition of Eu2+ ions under 400 nm excitation source. The persistent luminescence property of Eu2+ doped Ba3SiO5 orange phosphor was enhanced by co-doping non-equivalent phosphorus ions into silicon sites. This enhancement can be explained by formation of the trapping center due to the charge compenstation. Consequently, the afterglow decay exhibited an orange emission for more than 5 min after irradiation at under 365 nm for 1 min.

Original languageEnglish
Pages (from-to)460-464
Number of pages5
JournalDyes and Pigments
Volume148
DOIs
Publication statusPublished - 2018 Jan

Keywords

  • BaSiO:Eu
  • Co-doping
  • Persistent phosphor
  • Trap center

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

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