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Journal of Thermal Analysis and Calorimetry

, Volume 110, Issue 3, pp 1179–1183 | Cite as

Host-sensitized phosphorescence of Mn4+, Eu3+, and Yb3+ in MgAl2Si2O8

  • Esra Çırçır
  • Nilgun Ozpozan Kalaycioglu
Article

Abstract

Mn4+ doped and Eu3+, Yb3+ co-doped MgAl2Si2O8-based phosphors were prepared by conventional solid state reaction at 1,300 °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 a different maximum intensity when activated by UV illumination, was discussed. Such a red emission can be attributed to the intrinsic 2 E → 4 A 2 transitions of Mn4+.

Keywords

Mn4+ Eu3+ Yb3+ MgAl2Si2O8 phosphors Aluminosilicates 

Notes

Acknowledgements

This study was supported by Erciyes University EUBAP under project number FBD-09-804.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  1. 1.Department of Materials Science and Engineering, Faculty of EngineeringKaramanoğlu Mehmetbey UniversityKaramanTurkey
  2. 2.Department of Chemistry, Faculty of ScienceErciyes UniversityKayseriTurkey

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