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	传统白光LED与远程荧光粉白光LED的发光性能比较; The Difference of Luminous Performance Between Traditional Phosphor Packaging LED and Remote Phosphor LED
	肖华 ; 吕毅军 ; 徐云鑫 ; 朱丽虹 ; 陈国龙 ; 高玉琳 ; 范贤光 ; 薛睿超
	2014-01-15
关键词	LED 荧光粉 相关色温(CCT) 量子效率 光转换效率 LED phosphor correlated color temperature(CCT) quantum efficiency light conversion efficiency
英文摘要	研究了传统白光lEd与蓝光激发的球冠形远程荧光粉白光lEd在不同电流、不同热沉温度下的发光性能,并对其机理差异展开了探讨。实验结果表明:随热沉温度和驱动电流的上升,传统白光lEd的量子效率和电光转换效率急剧下降,并导致其y/b比(yEllOW/bluE rATIO)下降,相关色温上升。而在远程荧光粉白光lEd中,其量子效率、光转换效率和相关色温在相同实验条件下变化幅度都较小。由光强空间分布和y/b比空间分布可知,远程荧光粉白光lEd的光强分布呈类似蝠翼分布,且y/b比空间均匀性远大于传统白光lEd。; Under different drive current and heat sink temperature,luminous performances as well as physical mechanisms were studied for both traditional phosphor-dispensing packaging white LED and blue light-converting hemisphere remote phosphor LEDs.With the increase of the heat sink temperature and the drive currents,the quantum efficiency and light conversion efficiency in the traditional phosphor-dispensing packaging white LED drop rapidly,which is responsible for the decrease of Y/B ratio(Yellow/Blue Ratio) and the apparent increase of CCT(correlated color temperature).However,the parameters of quantum efficiency,light conversion efficiency and CCT in blue light-converting hemisphere remote-phosphor packaging LEDs have little change under the same experimental conditions.In addition,the remote phosphor LEDs exhibit a batwing spatial luminous intensity distribution and the spatial Y/B ratio distribution is much more homogeneous compared with the traditional phosphor-dispensing packaging white LED.; 国家自然科学基金(11104230;61102030); 福建省产学研重大科技项目(2011H6025;2013H6024); 福建省重点科技项目(2012H0039)资助
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/121530]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	肖华,吕毅军,徐云鑫,等. 传统白光LED与远程荧光粉白光LED的发光性能比较, The Difference of Luminous Performance Between Traditional Phosphor Packaging LED and Remote Phosphor LED[J],2014.
APA	肖华.,吕毅军.,徐云鑫.,朱丽虹.,陈国龙.,...&薛睿超.(2014).传统白光LED与远程荧光粉白光LED的发光性能比较..
MLA	肖华,et al."传统白光LED与远程荧光粉白光LED的发光性能比较".(2014).

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