期刊
OPTICAL MATERIALS EXPRESS
卷 6, 期 3, 页码 938-945出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.6.000938
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资金
- National Research Foundation of Korea [NRF-2013R1A2A2A01016711]
Remote phosphor thick film layers consisting of red/green silicate phosphors embedded in a glass matrix were investigated in terms of the feasibility of a printing process onto a soda lime silicate glass substrate and the resultant performance of white luminescence. Densification of the phosphor layers via a viscous flow of the glass matrix at a low temperature of 400 degrees C was a key element of the success since the low temperature avoids chemical degradation of the phosphors. Photoluminescence and luminous efficacy were dependent on the relative content of the red/green phosphors. As an optimal example, the thick film containing 30 wt% red and 70 wt% green phosphors demonstrated the best efficiency of similar to 55.1 lm/W with excellent chromaticity coordinates. (C) 2016 Optical Society of America
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