Near-infrared luminescence of ferric oxide particles

Jun Wang, William B. White, James H. Adair

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A weak near-infrared luminescence has been observed for fine-particle Fe2O3 when excited by 1064 nm radiation from a Nd:YAG laser. There are three broad luminescence peaks at 7994, 7225 and 6686 cm- 1, with intensities about 10 times that of the Raman scattering. The relative intensities vary with particle morphology and with heat treatment. Overall band intensities increase by about a factor of 10 for Fe2O3 that has been heated to 500 °C and the decreases again for material that has been heated to 1000 °C. The emission was assigned to the 4T1g6A1g crystal field transition of octahedral Fe3+. A large Stokes shift is associated with these transitions.

Original languageEnglish (US)
Pages (from-to)2013-2016
Number of pages4
JournalMaterials Letters
Volume60
Issue number16
DOIs
StatePublished - Jul 2006

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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