Photoluminescence and concentration quenching of Pr3+ doped BaTa2O6 phosphor

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

Metalurgija, cilt.54, sa.2, ss.407-410, 2015 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 54 Sayı: 2
  • Basım Tarihi: 2015
  • Dergi Adı: Metalurgija
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.407-410
  • Anahtar Kelimeler: BaTa2O6, Phosphors, Pr3+, Solid state reaction, TTB
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

© 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.