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


Korkmaz E., Kalaycioglu N. , Kafadar V. E.

BULLETIN OF MATERIALS SCIENCE, cilt.36, ss.1079-1086, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 36 Konu: 6
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s12034-013-0562-0
  • Dergi Adı: BULLETIN OF MATERIALS SCIENCE
  • Sayfa Sayıları: ss.1079-1086

Özet

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.