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

Mn 4+ doped and Gd 3+ , Lu 3+ co-doped MgAl 2 Si 2 O 8 -based phosphors were first of all synthesized by solid state reaction at about 1300.0 °C. They were characterized by thermogravimetry, differential thermal analysis, X-ray powder diffraction, photoluminescence, and scanning electron microscopy....

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Veröffentlicht in:	Journal of thermal analysis and calorimetry 2013, Vol.111 (1), p.273-277
Hauptverfasser:	Kalaycioglu, Nilgun Ozpozan, Çırçır, Esra
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical Chemistry Chemistry Chemistry and Materials Science Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Inorganic Chemistry Measurement Science and Instrumentation Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other solid inorganic materials Photoluminescence Physical Chemistry Physics Polymer Sciences
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Zusammenfassung:	Mn 4+ doped and Gd 3+ , Lu 3+ co-doped MgAl 2 Si 2 O 8 -based phosphors were first of all synthesized by solid state reaction at about 1300.0 °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 2 E → 4 A 2 transitions of Mn 4+ .
ISSN:	1388-6150 1588-2926 1572-8943
DOI:	10.1007/s10973-012-2248-z