Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 115, Issue 1, Pages 573-577Publisher
SPRINGER
DOI: 10.1007/s10973-013-3277-y
Keywords
Luminescence; Differential thermal analysis (DTA); Electron microscopy (SEM); Powder diffraction
Funding
- Erciyes University EUBAP [FBD-09-804]
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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+.
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