Photoluminescence and concentration quenching of Pr3+ doped BaTa2O6 phosphor

Ilhan M., Samur R., DEMİRER H., MİNDİVAN F.

Metalurgija, vol.54, no.2, pp.407-410, 2015 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 54 Issue: 2
  • Publication Date: 2015
  • Journal Name: Metalurgija
  • Journal Indexes: Scopus
  • Page Numbers: pp.407-410
  • Keywords: BaTa2O6, Phosphors, Pr3+, Solid state reaction, TTB
  • Bilecik Şeyh Edebali University Affiliated: Yes

Abstract

© 2014 Faculty of Metallurgy. All rights reserved.The pure and Pr3+doped TTB-BaTa2O6phosphors were obtained by the solid state reaction method at 1 425 °C for 20 hours. X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) analyses confirmed a single phase of BaTa2O6up to 10 mol % Pr2O3. SEM analysis also shows that BaTa2O6grain size decreased with the increasing Pr2O3concentration. The chemical composition of Pr3+doped BaTa2O6structures was confirmed by Energy Dispersive Spectroscopy (EDS) analysis. BaTa2O6:Pr3+phosphors exhibited on a strong red emission at 620,9 nm, a green emission at 548,3 nm and a red emission at 655,2 nm. Emission intensity increased with Pr3+doping concentration up to 1,5 mol %, then decreased due to concentration quenching.