Effects of post heat treatment on near infrared photoluminescence of YAG:Yb3+ nanoparticles synthesized by glycothermal method

Ryo Asakura, Tetsuhiko Isobe

Research output: Contribution to journalArticle

Abstract

Influence of post heat treatment on particulate, structural, surface, and optical properties of YAG:Yb3+ nanoparticles prepared by glycothermal method is studied to understand factors for determining photoluminescence intensity. Characterization is performed on electron microscopy, X-ray diffractometry, infrared absorption spectroscopy, and optical measurements. Near infrared emission under 940 nm near infrared excitation is observed at 1029 nm corresponding to 2F5/22F7/2 transition of Yb3+. Subsequent heat treatment causes crystallite growth and elimination of hydroxyl groups, resulting in an enhancement of the near infrared emission.

Original languageEnglish
Pages (from-to)492-496
Number of pages5
JournalJournal of Luminescence
Volume146
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Glycothermal method
  • Near infrared emission
  • YAG:Yb

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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