InGaN基白光LED光谱特征和结温相关性研究

陈超, 夏明飞, 杨鸿儒, 占春连, 卢飞, 李正琪, 吕春力, 吴磊

陈超, 夏明飞, 杨鸿儒, 占春连, 卢飞, 李正琪, 吕春力, 吴磊. InGaN基白光LED光谱特征和结温相关性研究[J]. 应用光学, 2011, 32(5): 1032-1036.
引用本文: 陈超, 夏明飞, 杨鸿儒, 占春连, 卢飞, 李正琪, 吕春力, 吴磊. InGaN基白光LED光谱特征和结温相关性研究[J]. 应用光学, 2011, 32(5): 1032-1036.
shu
CHEN Chao, XIA Ming-fei, YANG Hong-ru, ZHAN Chun-lian, LU Fei, LI Zheng-qi, LV Chun-li, WU Lei. Dependence of InGaN-based white LEDs spectral characteristics on junction temperature[J]. Journal of Applied Optics, 2011, 32(5): 1032-1036.
Citation: CHEN Chao, XIA Ming-fei, YANG Hong-ru, ZHAN Chun-lian, LU Fei, LI Zheng-qi, LV Chun-li, WU Lei. Dependence of InGaN-based white LEDs spectral characteristics on junction temperature[J]. Journal of Applied Optics, 2011, 32(5): 1032-1036.
shu

InGaN基白光LED光谱特征和结温相关性研究

  • 1.

    西安应用光学研究所,陕西 西安710065;

  • 2.

    总装军械技术研究所,河北 石家庄 050000

详细信息
    通讯作者:

    陈超（1980-），男，重庆开县人，工程师，博士研究生，主要从事光学测试技术等方面的研究工作。

  • 中图分类号: TN312.8

Dependence of InGaN-based white LEDs spectral characteristics on junction temperature

  • 1.

    Xi-an Institute of Applied Optics,Xi-an 710065,China;

  • 2.

    Ordnance Institute of General Equipment Department,Shijiazhuang 050000,China

摘要

    摘要
  • 摘要: 以InGaN蓝光+荧光粉的白光LED为研究对象，在恒定环境温度下改变驱动电流，利用光谱仪测得不同LED结温下的光谱曲线。通过分析实验数据，得出光谱特征与该型LED结温的关系。结果表明：InGaN基白光LED蓝光和荧光的峰值波长与结温没有明显的线性关系；蓝光的光谱线宽以及荧光和蓝光峰值强度的比值与结温具有良好的线性关系。
    Abstract: Junction temperatures and spectral characteristics of InGaN+YAG white LEDs were measured at various driving currents and a constant environmental temperature, and the spectral curve under different junction temperatures was obtained, which indicated the dependence of InGaN+YAG white LEDs spectral characteristics on junction temperature. The experiment results show that the line width of blue spectrum is dependent on junction temperature, while the one of phosphor spectrum exhibits a weak dependence; the peak wavelengths of blue and phosphor spectrum have no dependence on junction temperature, while the peak intensity ratio of phosphor to blue spectrum has a good linearity.
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    • 参考文献(1)
  • ［1］GU Y，NARENDRAN N. A non-contact measurement method for determining junction temperature of phosphor-converted white LEDs［J］.SPIE，2004,5187:107-114.

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    ZHAO Guang-hua, CHEN Hai-yan. A non-contact measurement method for junction temperature of high power white LEDs［J］. Journal of Circuits and Systems,2010,15(1):125-128.(in Chinese with an English abstract)

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    MEI Yi, CHEN Yu-yang, YUAN Chuan, et al.Measurement of LEDs temperature characteristics［J］. Zhaoming Gongcheng Xuebao,2007,18(1):17-20. (in Chinese with an English abstract)

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    CHEN Ting, CHEN Zhi-zhong, LIN Liang,et al. Methods for determing junction temperature of GaN-based white LEDs［J］.Chinese Journal of Lumine Science,2006,27(3):407-411.(in Chinese with an English abstract)

    ［7］刘立明，郑晓东. LED结温与光谱特性关系的测量［J］.光子学报，2009，38(5)：1069-1073.

    LIU Li-ming, ZHENG Xiao-dong. Measurement of LEDs spectral characteristics and junction temperature［J］. Acta Photonica Sinica, 2009,38(5):1069-1073. (in Chinese with an English abstract)

    ［8］李炳乾，郑同场，夏正浩. GaN基蓝光发光二极管正向电压温度特性研究［J］.物理学报，2009，58(10)：7189-7193.

    LI Bing-qian, ZHENG Tong-chang, XIA Zheng-hao. Temperature characteristics of the forward voltage of GaN based blue light emitting diodes［J］.Acta Physica Sinica,2009,58(10):7189-7193. (in Chinese with an English abstract)

    ［9］SENAWIRATNE J, CHATTERJEE A, DETCHPROHM T,et al. Junction temperature, spectral shift, and efficiency in GaInN-based blue and green light emitting diodes［J］. Thin Solid Films, 2010,518:1732-1736.

    ［10］MURTHY M, KAMTO A, AWAAH M A， et al. Electrical characterization of blue light emitting diodes as a function of temperature［J］.Mater. Res. Soc. Symp. Proc.,2006,892:251-256.
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  • 刊出日期:  2011-09-14

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