Yellow phosphors doping with Gd3+ , Tb3+ and Lu3+ in MTiO3 (M = Mg and Sr) luminescence properties


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Korkmaz E. , ÖZPOZAN N., KAFADAR V. E.

BULLETIN OF MATERIALS SCIENCE, vol.36, no.6, pp.1079-1086, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 6
  • Publication Date: 2013
  • Doi Number: 10.1007/s12034-013-0562-0
  • Title of Journal : BULLETIN OF MATERIALS SCIENCE
  • Page Numbers: pp.1079-1086
  • Keywords: Phosphors, Gd3+, Tb3+ and Lu3+ luminescence, MgTiO3, SrTiO3, XRD, SEM, DTA/TG, STEP SYNTHESIS, PHOTOLUMINESCENCE, TITANATE

Abstract

This paper reports Gd3 + , Tb3 + and Lu3 + doped MTiO3 (M = Mg and Sr)-based phosphors which were synthesized by the conventional solid-state reaction method, their crystal structures and luminescence properties were investigated. X-ray diffraction patterns (XRD) showed that phosphors sintered at 1000 A degrees C for 2 h were the pure SrTiO3 and MgTiO3 phases. The optimization of reaction conditions was carried out by thermogravimetry and differential thermal analysis (DTA/TG) methods. Surface and elemental analyses were performed by using SEM instrument. The excitation and emission spectra were recorded by a photoluminescence spectrophotometer (PL). The thermoluminescence (TL) properties of MgTiO3:RE (RE = Gd3 + , Tb3 + , Lu3 + ) and SrTiO3:RE (RE = Gd3 + , Tb3 + , Lu3 + ) were investigated.