| Citation: |
Zhang Qin, Jiao Feng, Chen Zhaohui, Xu Ling, Wang Simin, Liu Sheng. Effect of temperature and moisture on the luminescence properties of silicone filled with YAG phosphor[J]. Journal of Semiconductors, 2011, 32(1): 012002. doi: 10.1088/1674-4926/32/1/012002
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Zhang Q, Jiao F, Chen Z H, Xu L, Wang S M, Liu S. Effect of temperature and moisture on the luminescence properties of silicone filled with YAG phosphor[J]. J. Semicond., 2011, 32(1): 012002. doi: 10.1088/1674-4926/32/1/012002.
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Effect of temperature and moisture on the luminescence properties of silicone filled with YAG phosphor
DOI: 10.1088/1674-4926/32/1/012002
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Abstract
In order to determine the environmental effects on the luminescence properties of a phosphor layer for high-power light emitting diodes, a high humidity and temperature test (85 ℃/85%RH) and a thermal aging test (85 ℃) were performed on silicone/YAG phosphor composites. The luminescence properties of silicone/phosphor composites are monitored by a fluorescence spectrometer. The results show that high temperature could result in an increase in conversion efficiency of composites during the early aging stage and red shift of YAG phosphor; and high humidity could result in a significant decrease in conversion efficiency of composites while having a small influence upon the optimal excitation wavelength of the YAG phosphor. -
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