The role of annealing conditions on the low temperature photoluminescence properties of CuAlO2

Daragh Byrne, Nick Bennett, Aidan Cowley

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

CuAlO2 films and powder are prepared using different annealing conditions such as temperature and atmosphere. The effects of varying these parameters on the optical properties including Raman and low temperature photoluminescence, meta-stability and defect emission are examined. We find evidence that the blue emission may result from oxygen vacancies and that the meta-stability arises from Cu+-Cu+ interactions involving excess copper introduced during the annealing steps.

Original languageEnglish
Pages (from-to)212-218
Number of pages7
JournalJournal of Luminescence
Volume170
Issue numberPart 1
Early online date2 Nov 2015
DOIs
Publication statusPublished - Feb 2016

Keywords

  • CuAlO
  • Defect emission
  • Low temperature photoluminescence
  • Meta-stable luminescence

ASJC Scopus subject areas

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

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