High Efficiency Blue Phosphorescent Organic Light Emitting Diode Based on mCP and UGH2 as Host with Double Emitting Layer Structure

LIANG Xu-xu; QU Jia-wei; GUO Yong-lin; MU Xiao-ling; WU Yu-kun; ZHAO Yi

doi:10.3788/fgxb20153610.1150

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High Efficiency Blue Phosphorescent Organic Light Emitting Diode Based on mCP and UGH2 as Host with Double Emitting Layer Structure

更新时间：2020-08-12

- High Efficiency Blue Phosphorescent Organic Light Emitting Diode Based on mCP and UGH2 as Host with Double Emitting Layer Structure
- Chinese Journal of Luminescence Vol. 36, Issue 10, Pages: 1150-1155(2015)
- 作者机构：
  
  吉林大学电子科学与工程学院集成光电子学国家重点联合实验室,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153610.1150
  CLC： TN383+.1
- Received：10 July 2015，
  
  Revised：11 August 2015，
  
  Published：10 October 2015
- 稿件说明：
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梁续旭, 曲加伟, 郭永林等. 基于mCP与UGH2为母体的双发光层高效率蓝色磷光OLED[J]. 发光学报, 2015,36(10): 1150-1155

LIANG Xu-xu, QU Jia-wei, GUO Yong-lin etc. High Efficiency Blue Phosphorescent Organic Light Emitting Diode Based on mCP and UGH2 as Host with Double Emitting Layer Structure[J]. Chinese Journal of Luminescence, 2015,36(10): 1150-1155
梁续旭, 曲加伟, 郭永林等. 基于mCP与UGH2为母体的双发光层高效率蓝色磷光OLED[J]. 发光学报, 2015,36(10): 1150-1155 DOI： 10.3788/fgxb20153610.1150.

LIANG Xu-xu, QU Jia-wei, GUO Yong-lin etc. High Efficiency Blue Phosphorescent Organic Light Emitting Diode Based on mCP and UGH2 as Host with Double Emitting Layer Structure[J]. Chinese Journal of Luminescence, 2015,36(10): 1150-1155 DOI： 10.3788/fgxb20153610.1150.

摘要

以9

9'-(1

3-苯基)二-9H-咔唑(mCP)和1

4-二(三苯甲硅烷基)苯(UGH2)为母体

将常用的蓝光染料二(3

5-二氟-2-(2-吡啶)苯基-(2-吡啶甲酸根))合铱(Ⅲ) (FIrpic)掺入这两种母体材料中

制得具有双发光层结构的蓝色磷光有机电致发光器件

并对整个物理机制进行了阐述。该器件较基于mCP或UGH2为母体的单发光层器件有着更高的器件效率。器件的最大电流效率、功率效率、外量子效率分别为21.13 cd/A、14.97 lm/W、10.56%。器件亮度从100 cd/m

到3 000 cd/m

时

效率滚降为34.2%。

Abstract

A highly efficient blue phosphorescent organic light-emitting diode (OLED) with double emitting layer (DEL) structure was prepared using both 1

3-bis(carbazol-9-yl)benzene (mCP) and p-bis(triphenylsilyly) benzene (UGH2) as host material

and iridium(Ⅲ) bis[(4

6-difluo-rophenyl)-pyridinato-N

C2](FIrpic) as phosphorescent guest material. The physical mechanisms on the high efficiency were discussed. Compared to the device with single emitting layer using mCP or UGH2 as host material

the OLED with double emitting layer structure has higher efficiency. The maximum current efficiency

power efficiency

and external quantum efficiency of the device are 21.13 cd/A

14.97 lm/W

and 10.56%

respectively. The efficiency roll-off between 100 cd/m

and 3 000 cd/m

is 34.2%.

关键词

Keywords

references

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