Red phosphors in MgAl2Si2O8 doping with Mn4+, Gd3+ and Lu3+ and host-sensitized luminescence properties


Kalaycioglu N. , Circir E.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.111, ss.273-277, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 111 Konu: 1
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s10973-012-2248-z
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Sayfa Sayıları: ss.273-277

Özet

Mn4+ doped and Gd3+, Lu3+ co-doped MgAl2Si2O8-based phosphors were first of all synthesized by solid state reaction at about 1300.0 A degrees C. They were characterized by thermogravimetry, differential thermal analysis, X-ray powder diffraction, photoluminescence, and scanning electron microscopy. The luminescence mechanism of the phosphors which showed broad red emission bands in the range of 610-715 nm and had a different maximum intensity when activated by UV illumination was discussed. Such a red emission can be attributed to the intrinsic E-2 -> (4)A(2) transitions of Mn4+.