白光LED极限流明效率的计算

褚明辉; 吴 庆; 王 建; 黄 先; 刘学彦; 申德振; 蒋大鹏

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白光LED极限流明效率的计算

论文 | 更新时间：2020-08-12

- 白光LED极限流明效率的计算
- Calculation of Theoretical Limitation of Lumen Efficiency for White LED
- 发光学报 2009年30卷第1期页码：77-80
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所激发态物理重点实验室
  2. 中国科学院研究生院, 北京 100049
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褚明辉, 吴庆, 王建, 等. 白光LED极限流明效率的计算[J]. 发光学报, 2009,30(1):77-80.

Calculation of Theoretical Limitation of Lumen Efficiency for White LED[J]. Chinese Journal of Luminescence, 2009,30(1):77-80.
褚明辉, 吴庆, 王建, 等. 白光LED极限流明效率的计算[J]. 发光学报, 2009,30(1):77-80. DOI：

Calculation of Theoretical Limitation of Lumen Efficiency for White LED[J]. Chinese Journal of Luminescence, 2009,30(1):77-80. DOI：

摘要

对蓝光芯片加黄色荧光粉制备白光LED方法的流明效率进行了理论计算。根据光度学原理,我们考虑到视觉函数,V(λ),的修正,以色坐标为,x,=0.325,y,=0.332,显色指数为81.5,色温为5 914 K的白光LED发光光谱为依据,计算了白光LED流明效率的理论极限:得出每瓦白光LED辐射光功率产生的光通量为298.7 lm,白光LED发射的总光子数为2.7×10,18,。在理想情况下,注入一个电子-孔穴对产生一个蓝光光子,设荧光粉的量子效率为1,因此,注入的电子-孔穴对数亦等于白光光子数,进而计算出白光LED每辐射1 W的光功率所需的电功率为1.51 W,上述白光LED发光光谱对应的白光LED的电-光转换的理论极限流明效率为197.8 lm/W。

Abstract

paper

关键词

流明效率光通量白光LED

Keywords

luminous efficiencyluminous fluxwhite-emitting LED

references

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