期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 36, 期 7, 页码 1723-1729出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2016.01.024
关键词
Glass ceramic; Garnet; Optical materials; Light emitting diodes; Luminescence
资金
- National Natural Science Foundation of China [11574312, 51472242, 11304312]
- Fujian Provincial Key Project of Science Technology [2015H0051]
- Natural Science Foundation of Fujian Province [2015J01032]
Phosphor-in-glass (PiG) color converter, being regarded as a good encapsulant material for long-lifetime high-powered white light-emitting-diode (LED), has developed rapidly in the recent years. However, it still remains a challenge to achieve fine chromaticity tuning of PiG for high-quality indoor lighting. Herein, a transparent garnet-based PiG was successfully prepared by introducing the Y3Mg2AlSi2O12:Ce3+ orange phosphor and the Y3Al4.6Ga0.4O12:Ce3+ green phosphor into TeO2-based glass matrix. The microstructure and luminescent properties of the PiG were investigated in detail. After optimizing the weight ratio of green phosphor to orange phosphor as well as the PiG thickness, facile chromaticity tuning to follow along Planckian locus in the thus-fabricated LED is achieved; correspondingly the correlated color temperature is adjusted from cool white to warm white. Hopefully, the developed garnet-based PiG is applicable in the long-lifetime color-tunable w-LEDs. (C) 2016 Elsevier Ltd. All rights reserved.
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