Wang X.1, Zhai M.1, Ivanovskikh K. V.2, Guo H.1, Huang P.1, Cui C.1, Wang L.1, Shi Q.1
1College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, China
2Department of Experimental Physics, Ural Federal University, Ekaterinburg, Russia
Email: shiqiufeng@tyut.edu.cn
A series of novel red-emitting phosphors BaZrGe3O9 : Mn4+ (BZG : Mn4+) were synthesized through high-temperature solid-state reaction method in order to explore their capabilities for application as red-emitting phosphors. The phosphors were characterized by X-ray diffraction, photoluminescence spectra, and decay curve measurements at the temperature ranging from 80 to 500 K. The luminescence intensity increases to maximum at doping concentration of 0.2 mol.%, and then decreases with concentration. Serious thermal quenching was also revealed. Keywords: red-emitting phosphor, germanate, Mn4+, concentration quenching, thermal stability.
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