期刊
MATERIALS & DESIGN
卷 102, 期 -, 页码 8-13出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2016.04.022
关键词
WLED; Yttrium aluminum garnet (YAG); Remote phosphor film; Luminescence; Flexible
资金
- Program for International Science & Technology Cooperation Program of China [2011DFA52290, 2012DFR50460]
- National Natural Science Funds [21471111]
- Shanxi Provincial Key Innovative Research Team in Science and Technology [2015013002-10]
- Natural Science Foundation of Shanxi Province [2013011013-2]
- Program for Science and Technology Development of Shanxi, project of Excellent Scientist Fund in Inner Mongolia [20140321012-01]
A simple and effective method for larger area flexible and relatively uniform phosphor film layer for blue chip-based white LED is presented in this paper. Besides having a certain ultraviolet resistance and thermal stability, the proposed yttrium aluminum garnet (YAG) phosphor film also achieved applicable color temperature (T-c of 5480 K and 4900 K), color rendering index (CRI of 68.4 and 70) and luminous efficiency (121.7 and 77 lm/W) when simply assembled with single blue chip and high-power COB separately. The preparation process and its test results suggested flexible phosphor film consists of YAG phosphor particles and common silicone without additional converter devices, which has positive practical significance for the packaging of remote phosphor-converted white LEDs. (C) 2016 Elsevier Ltd. All rights reserved.
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