Hybrid White Organic Light-emitting Devices Based on Quantum Well Structure

AN Tao; LI Peng; LI Huai-kun; DING Zhi-ming; WANG Hai-feng

doi:10.3788/fgxb20143511.1342

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Hybrid White Organic Light-emitting Devices Based on Quantum Well Structure

更新时间：2020-08-12

- Hybrid White Organic Light-emitting Devices Based on Quantum Well Structure
- Chinese Journal of Luminescence Vol. 35, Issue 11, Pages: 1342-1348(2014)
- 作者机构：
  
  西安理工大学电子工程系,陕西西安,710048
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143511.1342
  CLC： TN383+.1
- Received：03 August 2014，
  
  Revised：25 September 2014，
  
  Published：03 November 2014
- 稿件说明：
移动端阅览
安涛, 李朋, 李怀坤等. 基于量子阱结构的混合型白光有机发光器件[J]. 发光学报, 2014,35(11): 1342-1348

AN Tao, LI Peng, LI Huai-kun etc. Hybrid White Organic Light-emitting Devices Based on Quantum Well Structure[J]. Chinese Journal of Luminescence, 2014,35(11): 1342-1348
安涛, 李朋, 李怀坤等. 基于量子阱结构的混合型白光有机发光器件[J]. 发光学报, 2014,35(11): 1342-1348 DOI： 10.3788/fgxb20143511.1342.

AN Tao, LI Peng, LI Huai-kun etc. Hybrid White Organic Light-emitting Devices Based on Quantum Well Structure[J]. Chinese Journal of Luminescence, 2014,35(11): 1342-1348 DOI： 10.3788/fgxb20143511.1342.

摘要

以荧光材料BePP

结合量子阱作为蓝光发射层

磷光材料GIrl和R-4B掺入到混合双极性主体材料CBP:Bphen中分别作为绿、红发光层并且在红绿发光层中引入间隔层TPBI

组合得到发白光的混合型有机发光器件。其中量子阱是以BePP

作为势阱、TCTA为势垒。结果表明:当势垒层数为2时

器件的最大发光亮度和电流效率分别为21 682.5 cd/m

和23.73 cd/A;当电压从7 V增加到14 V时

色坐标从(0.345

0.350)变化到(0.340

0.342)。与无量子阱结构的参考器件相比

势垒层数为2的器件的最大功率效率为8.07 lm/W

色坐标变化相对最小为(0.005

0.008)

还有一个高的显色指数83。

Abstract

Hybrid white organic light-emitting device based on fluorescent layer combining with phosphorescent doping layer was fabricated

in which fluorescent material BePP

acted as blue emitter layer

phosphorescent material GIrl and R-4B doped into CBP:Bphen bipolar type host acted as green and red emitter layer

respectively. The ultrathin spacer layer was constructed by inserting a 2.0 nm thin layer of TPBI between red and green emitting layer. In the quantum well structure

BePP

and TCTA acted as the potential well layer and the potential barrier layer

respectively. The maximum luminance and current efficiency are 21 682.5 cd/m

and 23.73 cd/A

respectively. The Commission Internationale de IEclairage(CIE) coordinates of the device vary from (0.345

0.350) at 7 V to (0.340

0.342) at 14 V when the number of potential barrier layer is two. In comparison with the reference device without quantum well structure

the device with two barrier layers achieves a maximum power efficiency of 8.07 lm/W

a low CIE coordinates changing of (0.005

0.008)

and a high color rendering index of 83.

关键词

Keywords

references

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