Intense infrared luminescence in transparent glass-ceramics containing β-Ga2O3:Ni2+ Nanocrystals

  • Shifeng Zhou
  • , Gaofeng Feng
  • , Botao Wu
  • , Nan Jiang
  • , Shiqing Xu
  • , Jianrong Qiu*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

Transparent glass-ceramics containing β-Ga2O 3:Ni2+ nanocrystals were synthesized and characterized by X-ray diffraction, transmission electron microscopy, and electron energy loss spectroscopy. Intense broad-band luminescence centering at 1200 nm was observed when the sample was excited by a diode laser at 980 nm. The room-temperature fluorescent lifetime was 665 μs, which is longer than the Ni 2+-doped ZnAl2O4 and LiGa5O 8 glass-ceramics and is also comparable to the Ni2+-doped LiGa5O8 single crystal, The intense infrared luminescence with long fluorescent lifetime may be ascribed to the high crystal field hold by Ni2+ and the moderate lattice phonon energy of β-Ga 2O3. The excellent optical properties of this novel material indicate that it might be a promising candidate for broad-band amplifiers and room-temperature tunable lasers.

Original languageEnglish
Pages (from-to)7335-7338
Number of pages4
JournalJournal of Physical Chemistry C
Volume111
Issue number20
DOIs
StatePublished - 24 May 2007
Externally publishedYes

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