Effects of site substitutions and concentration on upconversion luminescence of Er(3+)-doped perovskite titanate

Opt Express. 2011 Jan 31;19(3):1824-9. doi: 10.1364/OE.19.001824.

Abstract

Upconversion photoluminescence (PL) of Er(3+)-doped BaTiO3 (BTO) with perovskite ABO3 structure is studied in terms of Er3+ substitutions for Ba (A-) and Ti (B-site) with different Er3+ doping concentrations. PL quenching with an increase Er3+ doping concentration is investigated based on the structural change and energy transfer of cross-relaxation process in BTO: Er, i.e. (2)H(11/2) + (4)I(15/2) → (4)I(9/2) + (4)I(13/2). Temperature dependence of the PL in BTO: Er is revealed, which is associated with phase transitions of BTO host. The results imply that the emission from substituted Er3+ ions may be used as a structural probe for the ferroelectric titanates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calcium Compounds / chemistry*
  • Crystallization / methods*
  • Erbium / chemistry*
  • Luminescent Measurements / methods*
  • Materials Testing
  • Oxides / chemistry*
  • Titanium / chemistry*

Substances

  • Calcium Compounds
  • Oxides
  • perovskite
  • Erbium
  • Titanium