| InGaN基白光LED光谱特征和结温相关性研究 |
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| 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. |
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| 作者姓名： | 陈超 夏明飞 杨鸿儒 占春连 卢飞 李正琪 吕春力 吴磊 |
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| 作者单位： | 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 |
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| 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。
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| 关 键 词： | LED 结温 光谱线宽 峰值波长 峰值强度 |
Dependence of lnGaN-based white LEDs spectral characteristics on junction temperature |
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| CHEN Chao,XIA Ming-fei,YANG Hong-ru,ZHAN Chun-lian,LU Fei,Zheng-qi,LV Chun-li,WU Lei.Dependence of lnGaN-based white LEDs spectral characteristics on junction temperature[J].Journal of Applied Optics,2011,32(5):1032-1036. |
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| Authors: | CHEN Chao XIA Ming-fei YANG Hong-ru ZHAN Chun-lian LU Fei Zheng-qi LV Chun-li WU Lei |
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| Institution: | 1.Xi-an Institute of Applied Optics,Xi-an 710065，China;
2. Ordnance Institute of General Equipment Department, Shijiazhuang 050000, China |
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| 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 wav... |
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| Keywords: | LED junction temperature spectral linewidth peak wavelength peak intensity |
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