Issue 48, 2015

The design of a ceramic phosphor plate with functional materials for application in high power LEDs

Abstract

Here we report the design of a ceramic phosphor plate made up of different functional materials, such as SiO2 and MgO, and Lu3Al5O12:Ce3+ (LuAG:Ce) for the fabrication of remote phosphors in high-power LED applications. Remote phosphors can be applied directly to LEDs for thermal dissipation. The amounts of SiO2 and MgO were controlled to optimize the photoluminescence (PL) intensities. The addition of MgO was more effective, and the optimized content of MgO was between 5 and 5.5 wt%. Ceramic phosphor plates with MgO showed better properties than others with regard to thermal stability, performance degradation and CIE colour coordinate changes. MgO is expected to be an effective functional material for the fabrication of ceramic phosphor plates.

Graphical abstract: The design of a ceramic phosphor plate with functional materials for application in high power LEDs

Supplementary files

Article information

Article type
Communication
Submitted
07 Sep 2015
Accepted
30 Oct 2015
First published
30 Oct 2015

J. Mater. Chem. C, 2015,3, 12390-12393

Author version available

The design of a ceramic phosphor plate with functional materials for application in high power LEDs

E. Ji, Y. Song, S. H. Bak, M. K. Jung, B. W. Jeong, D. B. Lee and D. Yoon, J. Mater. Chem. C, 2015, 3, 12390 DOI: 10.1039/C5TC02795K

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