J. Semicond. > 2011, Volume 32 > Issue 1 > 012002

SEMICONDUCTOR PHYSICS

Effect of temperature and moisture on the luminescence properties of silicone filled with YAG phosphor

Zhang Qin, Jiao Feng, Chen Zhaohui, Xu Ling, Wang Simin and Liu Sheng

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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.

Key words: high power light emitting diodesphosphor layerY3Al5O12high humidity and temperature testthermal aging test

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    Received: 18 August 2015 Revised: Online: Published: 01 January 2011

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      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 ****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.
      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 ****
      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.

      Effect of temperature and moisture on the luminescence properties of silicone filled with YAG phosphor

      DOI: 10.1088/1674-4926/32/1/012002
      • Received Date: 2015-08-18

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