Issue 4, 2015

A novel Ce3+ activated Lu3MgAl3SiO12 garnet phosphor for blue chip light-emitting diodes with excellent performance

Abstract

A novel Ce3+ activated Lu3MgAl3SiO12:Ce phosphor was synthesized and found to crystallize in the garnet structure. The crystal structure of the synthesized phosphor has been characterised by X-ray diffraction and Rietveld refinement. Both room and high temperature photoluminescence spectra are utilized to investigate the luminescence properties and crystal field splitting. The high temperature quenching of these phosphors and their quantum efficiency (QE) are also studied using both the prepared YAG:Ce and the commercial YAG:Ce phosphor named P46-y3 as the reference. Upon excitation with blue light, the composition-optimized Lu3MgAl3SiO12:Ce phosphor exhibited strong yellow light with a high QE of 81.2% and better thermal stability than that of the commercial phosphor. The results indicate that the Lu3MgAl3SiO12:Ce phosphor can serve as a candidate for blue chip LEDs.

Graphical abstract: A novel Ce3+ activated Lu3MgAl3SiO12 garnet phosphor for blue chip light-emitting diodes with excellent performance

Supplementary files

Article information

Article type
Paper
Submitted
13 Oct 2014
Accepted
20 Nov 2014
First published
24 Nov 2014

Dalton Trans., 2015,44, 1775-1781

Author version available

A novel Ce3+ activated Lu3MgAl3SiO12 garnet phosphor for blue chip light-emitting diodes with excellent performance

Y. Shi, G. Zhu, M. Mikami, Y. Shimomura and Y. Wang, Dalton Trans., 2015, 44, 1775 DOI: 10.1039/C4DT03144J

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