Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices

ZHANG Chun-yu; QIN Li; WANG Hong-jie

doi:10.3788/fgxb20143512.1464

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Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices

更新时间：2020-08-12

- Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices
- Chinese Journal of Luminescence Vol. 35, Issue 12, Pages: 1464-1468(2014)
- 作者机构：
  
  1. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所,吉林长春,130033
  2. 吉林建筑大学材料科学与工程学院, 吉林长春 130118
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143512.1464
  CLC： TN383+.1
- Received：07 September 2014，
  
  Revised：12 October 2014，
  
  Published：03 December 2014
- 稿件说明：
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张春玉, 秦莉, 王洪杰. 红色磷光微腔有机电致发光器件的发光性能[J]. 发光学报, 2014,35(12): 1464-1468

ZHANG Chun-yu, QIN Li, WANG Hong-jie. Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices[J]. Chinese Journal of Luminescence, 2014,35(12): 1464-1468
张春玉, 秦莉, 王洪杰. 红色磷光微腔有机电致发光器件的发光性能[J]. 发光学报, 2014,35(12): 1464-1468 DOI： 10.3788/fgxb20143512.1464.

ZHANG Chun-yu, QIN Li, WANG Hong-jie. Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices[J]. Chinese Journal of Luminescence, 2014,35(12): 1464-1468 DOI： 10.3788/fgxb20143512.1464.

摘要

制备了结构为 G/DBR/ITO/MoO

(1 nm)/TcTa(55 nm )/CBP:Ir(piq)

acac(44 nm

6%)/TPBI(55 nm)/LiF(1 nm)/Al(80 nm)的红色磷光微腔有机电致发光器件(MOLED)

同时制作了无腔对比器件OLED

研究微腔结构对磷光器件发光性能的影响.研究发现

OLED的电致发光(EL)峰值为626 nm

半高全宽(FWHM)为92 nm;MOLED的发光峰值为628 nm

FWHM为42 nm

窄化了1/2.MOLED的最大亮度、最大电流效率、最大外量子效率(EQE)分别为121 000 cd/m

、27.8 cd/A和28.4%

OLED的最大亮度、最大电流效率、最大EQE分别为54 500 cd/m

、13.1 cd/A和16.6%.结果表明

微腔器件的发光性能与无腔器件相比得到了较大幅度的提升.

Abstract

Red phosphorescent microcavity organic light-emitting device (MOLED) with structure of Glass/DBR/ITO/MoO

(1 nm)/TcTa(55 nm)/CBP:Ir(piq)

acac(44 nm

6%)/TPBI(55 nm)/LiF(1 nm)/Al(80 nm) was fabricated. For comparison

an OLED without cavity also was fabricated. The effect of microcavity structure on luminescent properties of phosphorescent devices was studied. The electroluminescence (EL) spectrum peak of OLED is at 626 nm

and the full width at half maximum (FWHM) is 92 nm. The electroluminescence (EL) spectrum peak of MOLED is at 628 nm

and the FWHM is 42 nm which is narrowed half compared with the 92 nm value. The micro cavity structure can narrow the luminescence spectrum of OLED and improve the colour purity. For MOLED

the maximum brightness

the maximum current efficiency

the maximum external quantum efficiency (EQE) are 121 000 cd/m

27.8 cd/A and 28.4%

respectively. For OLED

its maximum brightness

current efficiency and external quantum efficiency are 54 500 cd/m

13.1 cd/A and 16.6%

respectively. Comparing with the no cavity device

the luminescence properties of microcavity device have been improved greatly.

关键词

Keywords

references

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State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

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