High Efficient Phosphor-converted White Organic Light-emitting Diodes with Red Sr2Si5N8∶Eu2+ Color Conversion Layer

ZHOU Zhi; WANG Feng-chao; LIU Su-qin; LIU You-nian; LI Zhen; YOKOYAMA Meiso

doi:10.3788/fgxb20123302.0176

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High Efficient Phosphor-converted White Organic Light-emitting Diodes with Red Sr₂Si₅N₈∶Eu²⁺ Color Conversion Layer

paper | 更新时间：2020-08-12

- High Efficient Phosphor-converted White Organic Light-emitting Diodes with Red Sr₂Si₅N₈∶Eu²⁺ Color Conversion Layer
- Chinese Journal of Luminescence Vol. 33, Issue 2, Pages: 176-181(2012)
- 作者机构：
  
  1. 中南大学化学化工学院功能材料化学研究所,湖南长沙,410083
  2. 义守大学电子工程系,台湾高雄,84001
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123302.0176
  CLC： TN383+.1
- Received：20 November 2011，
  
  Revised：08 December 2011，
  
  Published Online：10 February 2012，
  
  Published：10 February 2012
- 稿件说明：
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周智, 王峰超, 刘素琴, 刘又年, 李臻, 横山明聪. 高效率荧光粉转换型白光有机发光二极管的制备和性能研究[J]. 发光学报, 2012,33(2): 176-181

ZHOU Zhi, WANG Feng-chao, LIU Su-qin, LIU You-nian, LI Zhen, YOKOYAMA Meiso. High Efficient Phosphor-converted White Organic Light-emitting Diodes with Red Sr2Si5N8∶Eu2+ Color Conversion Layer[J]. Chinese Journal of Luminescence, 2012,33(2): 176-181
周智, 王峰超, 刘素琴, 刘又年, 李臻, 横山明聪. 高效率荧光粉转换型白光有机发光二极管的制备和性能研究[J]. 发光学报, 2012,33(2): 176-181 DOI： 10.3788/fgxb20123302.0176.

ZHOU Zhi, WANG Feng-chao, LIU Su-qin, LIU You-nian, LI Zhen, YOKOYAMA Meiso. High Efficient Phosphor-converted White Organic Light-emitting Diodes with Red Sr2Si5N8∶Eu2+ Color Conversion Layer[J]. Chinese Journal of Luminescence, 2012,33(2): 176-181 DOI： 10.3788/fgxb20123302.0176.

摘要

制备了一种荧光粉转换型白光有机发光二级管(pc-WOLEDs)

器件由发蓝光的荧光装置和发红光的无机荧光粉Sr

∶Eu

颜色转化层(CCL)复合组成

前者通过真空镀膜得到

后者采用旋涂法制备。CCL发射的红光和未被吸收的蓝光复合产生白光

最大发光效率为22.1 cd/A

最大能量效率为11.26 lm/W

外量子效率为10.2%。该pc-WOLEDs的色坐标为(0.32

0.34)

非常接近标准白光(0.33

0.33)。稳定性实验结果显示

该器件在不同电流密度下表现出了良好的稳定性。

Abstract

Phosphor-converted white organic light emitting diodes (pc-WOLEDs) are fabricated by combining blue OLED with red Sr

∶Eu

phosphor spin coated color conversion layer (CCL). The pc-WOLED shows maximum luminous efficiency of 22.1 cd/A

maximum power efficiency of 11.26 lm/W

external quantum efficiency of 10.2% and CIE coordinates of (0.32

0.34). Moreover

the output spectral and CIE coordinates of the pc-WOLED have a small shift in different driving current density

which demonstrate good color stability.

关键词

Keywords

references

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