Abstract
Mn4+ doped and Tb3+,4+, Er3+ co-doped MgAl2Si2O8-based phosphors were prepared by conventional solid-state synthesis 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 different maximum intensities when activated by UV illumination, was discussed. Such a red emission can be attributed to the intrinsic 2E → 4A2 transitions of Mn4+.
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This study was supported by the Erciyes University EUBAP under project number FBD-09-804.
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Öztürk, E., Ozpozan Kalaycioglu, N. Mn4+-, Tb3+,4+-, and Er3+-activated red phosphors in the MgAl2Si2O8 system. J Therm Anal Calorim 115, 573–577 (2014). https://doi.org/10.1007/s10973-013-3277-y
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DOI: https://doi.org/10.1007/s10973-013-3277-y