Synthesis and phosphorescence properties of Mn4+, La3+ and Ho3+ in MgAl2Si2O8


Kalaycioglu N. , Circir E.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.510, ss.6-10, 2012 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 510 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.jallcom.2011.08.035
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Sayfa Sayıları: ss.6-10

Özet

Mn4+, La3+ and Ho3+ doped MgAl2Si2O8-based phosphors were first synthesized by solid state reaction. They were characterized by thermogravimetry (TG), differential thermal analysis (DTA), X-ray powder diffraction (XRD), photoluminescence (PL) and scanning electron microscopy (SEM). The phosphors were obtained at about 1300 degrees C. They showed broad red and fuchsia-pink emission bands in the range of 610-715 nm and had a different maximum intensity when activated by UV illumination. Such a fuchsiapink emission can be attributed to the intrinsic d-d transitions of Mn4+. (C) 2011 Elsevier B.V. All rights reserved.