Long-lasting near-infrared persistent luminescence from β-Ga 2O3:Cr3 nanowire assemblies

Yi Ying Lu, Feng Liu, Zhanjun Gu, Zhengwei Pan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

Near-infrared (NIR) persistent luminescent β-Ga2O 3:Cr3 nanowire assemblies were synthesized by a hydrothermal process followed by calcination. The phosphor exhibits more than 4 h afterglow in the wavelength range of 650850 nm after ceasing the ultraviolet light (280360 nm) irradiation. The trap structure and persistent luminescence mechanism were revealed by thermoluminescence measurement. The β-Ga 2O3:Cr3 nanowire assemblies may find applications as identification taggants in security and optical probes in bio-imaging.

Original languageEnglish
Pages (from-to)2784-2787
Number of pages4
JournalJournal of Luminescence
Volume131
Issue number12
DOIs
StatePublished - Dec 2011
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the U.S. Office of Naval Research ( N00014-07-1-0060 ) and the ACS Petroleum Research Fund ( PRF 50265-DN10 ).

Keywords

  • Nanowires
  • Near infrared (NIR)
  • Persistent luminescence from Cr
  • β-GaO

ASJC Scopus subject areas

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • General Chemistry
  • Biochemistry
  • Condensed Matter Physics

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