传统白光LED与远程荧光粉白光LED的发光性能比较

肖华; 吕毅军; 徐云鑫; 朱丽虹; 陈国龙; 高玉琳; 范贤光; 薛睿超

doi:10.3788/fgxb20143501.0066

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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

材料合成及性能 | 更新时间：2020-08-12

- 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
- 发光学报 2014年35卷第1期页码：66-72
- 作者机构：
  
  厦门大学电子科学系福建省半导体照明工程技术研究中心,福建厦门,361005
- 作者简介：
- 基金信息：
  
  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（2012H003
- DOI：10.3788/fgxb20143501.0066
  中图分类号： O482.31
- 收稿日期：2013-07-24，
  
  修回日期：2013-10-26，
  
  纸质出版日期：2014-01-03
- 稿件说明：
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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

XIAO Hua, LYU Yi-jun, XU Yun-xin, ZHU Li-hong, CHEN Guo-long, GAO Yu-lin, FAN Xian-guang, XUE Rui-chao. The Difference of Luminous Performance Between Traditional Phosphor Packaging LED and Remote Phosphor LED[J]. Chinese Journal of Luminescence, 2014,35(1): 66-72
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 DOI： 10.3788/fgxb20143501.0066.

XIAO Hua, LYU Yi-jun, XU Yun-xin, ZHU Li-hong, CHEN Guo-long, GAO Yu-lin, FAN Xian-guang, XUE Rui-chao. The Difference of Luminous Performance Between Traditional Phosphor Packaging LED and Remote Phosphor LED[J]. Chinese Journal of Luminescence, 2014,35(1): 66-72 DOI： 10.3788/fgxb20143501.0066.

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。

Abstract

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.

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references

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