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白光LED荧光粉荧光外量子效率的准确测量 被引量：8

Accurate Determination of External Photoluminescence Quantum Efficiency of Phosphor for White LED by Using Inner Standard Scattering Board
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摘要 利用光学软件仿真的方法分析了积分球涂层特性、不同测量方法对荧光粉荧光外量子效率测量准确性的影响。为提高传统方法的测量精度,提出了基于内置标准散射片于积分球中的准确测定LED荧光粉荧光外量子效率的新方法,制作了专用实验系统,测试结果显示商用的不同LED荧光粉荧光外量子效率存在差距较大,数值在0.744到0.92之间,且实验测试结果和理论仿真规律一致。当积分球吸收系数在1%～5%间变化时,测试系统误差可控制在2%的范围之内。 By using optical software,the measurement accuracy which is affected by different properties of coating material of integrating sphere is discussed.To improve the accuracy of traditional measurement methods,a novel method based on an inner standard scattering board is proposed.The experimental results obtained by homemade apparatus show that the photoluminescence quantum efficiency of different kinds of commercial phosphor for LED ranges from 0.744 to 0.92,which agrees well with the simulation result.When the absorption coefficient of the coating material of integrating sphere varies from 0.01 to 0.05,the measurement error of the system is less than 2%.
作者 付伟 钱可元 罗毅 韩彦军
机构地区 清华大学深圳研究生院半导体照明实验室 清华大学电子工程系集成光电子学国家重点实验室
出处 《半导体光电》 CAS CSCD 北大核心 2011年第5期640-645,共6页 Semiconductor Optoelectronics
基金 国家"863"计划项目(2008AA03A194) 深圳市产学研和公共科技专项资助项目(SY200806300244A)
关键词 LED荧光粉 荧光外量子效率 直接光学测量法 phosphor for white LED external photoluminescence quantum efficiency direct optical measurement method
分类号 TN312.8 [电子电信—物理电子学]
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参考文献18

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二级参考文献12

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共引文献1

同被引文献80

  • 1肖华,吕毅军,徐云鑫,朱丽虹,陈国龙,高玉琳,范贤光,薛睿超.传统白光LED与远程荧光粉白光LED的发光性能比较[J].发光学报,2014,35(1):66-72. 被引量：32
  • 2李盼来,杨志平,王志军,郭庆林,李旭.用于白光LED的Sr_3SiO_5:Eu^(2+)材料制备及发光特性研究[J].科学通报,2007,52(13):1495-1498. 被引量：19
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引证文献8

二级引证文献25

半导体光电
2011年 第5期

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