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http://dx.doi.org/10.6111/JKCGCT.2015.25.3.121

Synthesis of Lu2.94Ce0.06MgAl3SiO12 phosphor and its photoluminescent properties  

Lee, Jung-Il (Department of Materials Science and Engineering, Korea National University of Transportation)
Kim, Tae Wan (Department of Materials Science and Engineering, Korea National University of Transportation)
Shin, Ji Young (Department of Materials Science and Engineering, Korea National University of Transportation)
Ryu, Jeong Ho (Department of Materials Science and Engineering, Korea National University of Transportation)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.25, no.3, 2015 , pp. 121-126 More about this Journal
Abstract
A novel $Ce^{3+}$ doped $Lu_3MgAl_3SiO_{12}$ phosphor ($Lu_{2.94}Ce_{0.06}MgAl_3SiO_{12}$) was successfully synthesized by a conventional solid-state reaction at $1450^{\circ}C$ for 5 h. The crystal structure of the synthesized phosphor powder was characterized by X-ray diffraction and Rietveld refinement. The prepared phosphor powder showed a broad peak at 550 nm, and the temperature dependence on photoluminescence properties of the prepared $Lu_{2.94}Ce_{0.06}MgAl_3SiO_{12}$ phosphor was investigated from 300 to 525 K. The activation energy for thermal quenching was determined by Arrhenius fitting. The experimental results clearly indicate that prepared $Lu_{2.94}Ce_{0.06}MgAl_3SiO_{12}$ phosphor has great potential for a down-conversion yellow phosphor in white light-emitting diodes.
Keywords
$Lu_{2.94}Ce_{0.06}MgAl_3SiO_{12}$; Phosphor; Photoluminescence; Thermal quenching;
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Times Cited By KSCI : 1  (Citation Analysis)
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