Mn4+-, Tb-3+,Tb-4+-, and Er3+-activated red phosphors in the MgAl2Si2O8 system

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Ozturk E., Kalaycioglu N. O.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.115, sa.1, ss.573-577, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 115 Sayı: 1
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1007/s10973-013-3277-y
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.573-577
  • Anahtar Kelimeler: Luminescence, Differential thermal analysis (DTA), Electron microscopy (SEM), Powder diffraction, HOST-SENSITIZED PHOSPHORESCENCE, LUMINESCENCE PROPERTIES, FLUORESCENCE, EU2+, PHASES, CE3+
  • Erciyes Üniversitesi Adresli: Evet

Özet

Mn4+ doped and Tb-3+,Tb-4+, Er3+ co-doped MgAl2Si2O8-based phosphors were prepared by conventional solid-state synthesis at 1,300 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 600-715 nm and had different maximum intensities 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+.