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Abstract：
Two kinds of 1 W white high power light emitting diode (LED) were made by packaging blue chips from Taiwan and US. The chips were coated by the same phosphor and transparent silica gel. Optical properties of the two kinds of LEDs were investigated in the temperature range of 15 similar to 75 degrees C and at the current of 350 mA. The results show that temperature badly affects the optical parameters such as peak wavelength, radiant flux, color temperature and so on. After analyzing the PL spectrum, the relationship between temperature and LED performance was found. The reasons for optical parameters vs. temperature were theoretically analyzed. Some suggestions were given to reduce the influence of temperature on power LED.
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Source ：
SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN： 1000-0593
Year： 2011
Issue： 6
Volume： 31
Page： 1450-1453
0 . 7 0 0
JCR@2022
ESI Discipline： CHEMISTRY;
Cited Count：
WoS CC Cited Count： 9
SCOPUS Cited Count： 26
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 6
Affiliated Colleges：
