Improved Performance of Hybrid White Organic Light-emitting Diodes via Adjusting The Mixing Ratio in Spacer Layer

YANG Liu; HE Zhi-qun; DONG Fei; LIU Shu; LIU Shu-jie; LIANG Chun-jun

doi:10.3788/fgxb20153606.0685

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Improved Performance of Hybrid White Organic Light-emitting Diodes via Adjusting The Mixing Ratio in Spacer Layer

更新时间：2020-08-12

- Improved Performance of Hybrid White Organic Light-emitting Diodes via Adjusting The Mixing Ratio in Spacer Layer
- Chinese Journal of Luminescence Vol. 36, Issue 6, Pages: 685-691(2015)
- 作者机构：
  
  1. 国家电光源质量监督检验中心(北京) 北京,100022
  2. 北京交通大学光电子技术研究所教育部发光与光信息技术重点实验室北京,100044
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153606.0685
  CLC： TN383+.1
- Received：17 March 2015，
  
  Revised：18 April 2015，
  
  Published：03 June 2015
- 稿件说明：
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杨柳, 何志群, 董飞等. 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响[J]. 发光学报, 2015,36(6): 685-691

YANG Liu, HE Zhi-qun, DONG Fei etc. Improved Performance of Hybrid White Organic Light-emitting Diodes via Adjusting The Mixing Ratio in Spacer Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 685-691
杨柳, 何志群, 董飞等. 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响[J]. 发光学报, 2015,36(6): 685-691 DOI： 10.3788/fgxb20153606.0685.

YANG Liu, HE Zhi-qun, DONG Fei etc. Improved Performance of Hybrid White Organic Light-emitting Diodes via Adjusting The Mixing Ratio in Spacer Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 685-691 DOI： 10.3788/fgxb20153606.0685.

摘要

制备了基于新型蓝绿色荧光MQAB与红色磷光Ir(MDQ)

acac的荧磷混合式白色有机电致发光器件

并探讨了TPBI或UGH3两种间隔层及二者的混合间隔层的器件的发光性能。研究发现

采用TPBI和UGH3的混合间隔层可以调控载流子注入与传输的平衡。当

(TPBI):

(UGH3)= 1:1时

可有效地控制发光区域

使得器件性能得到优化

并获得发光亮度高达14 700 cd/m

的白色有机电致发光器件

最高电流效率可达11.60 cd/A

且器件具有较高的色稳定性。采用混合间隔层的器件比单用TPBI或UGH3作为间隔层的器件效率提高了200%~300%。

Abstract

Novel hybrid white organic light-emitting diodes (HWOLEDs) based on blue-green fluorescent MQAB and red phosphorescent Ir(MDQ)

acac materials were fabricated. 1

5-tris(1-phenyl-1H-benzimidazol-2-yl)-benzene (TPBI)

3-bis(triphenylsilyl)benzene (UGH3) or a mixture of the two at different ratios was used as a spacer layer. It is found that the mixed spacer of TPBI and UGH3 is able to tune the hole injection/transport effectively. The optimized HWOLEDs with a spacer of

(TPBI):

(UGH3)=1:1 exhibits a luminance of 14 700 cd/m

and a current efficiency of 11.60 cd/A with an excellent color stability. In comparison with the devices using spacer of pure TPBI or pure UGH

layer

the current efficiency from the device using mixed spacer enhanced 200%-300%.

关键词

Keywords

references

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