Inverted White Light Organic-emitting Diodes

Xiao-liang ZHANG; Ya-nan XU; Yue-hua CHEN

doi:10.37188/CJL.20200197

您当前的位置：

首页 >

文章列表页 >

Inverted White Light Organic-emitting Diodes

Device Fabrication and Physics | 更新时间：2020-11-10

- Inverted White Light Organic-emitting Diodes
- Chinese Journal of Luminescence Vol. 41, Issue 11, Pages: 1397-1402(2020)
- 作者机构：
  
  1.南京邮电大学有机电子与信息显示国家重点实验室培育基地, 江苏南京 210023
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;Natural Science Foundation of Jiangsu P
- DOI：10.37188/CJL.20200197
  CLC：
扫描看全文
Xiao-liang ZHANG, Ya-nan XU, Yue-hua CHEN. Inverted White Light Organic-emitting Diodes. [J]. Chinese Journal of Luminescence 41(11):1397-1402(2020)
DOI：

Xiao-liang ZHANG, Ya-nan XU, Yue-hua CHEN. Inverted White Light Organic-emitting Diodes. [J]. Chinese Journal of Luminescence 41(11):1397-1402(2020) DOI： 10.37188/CJL.20200197.

摘要

研究了在倒置白光有机电致发光器件（Organic light-emitting diodes，OLEDs）ITO/ZnO/PEI/EML/TAPC/MoO,3,/Al中引入Polyethylenimine（PEI）修饰层对器件性能的影响。研究发现，PEI修饰层的引入可以有效降低ZnO电子注入层的功函数，调控器件的电子注入，改善空穴和电子注入平衡，钝化ZnO表面缺陷态，减少激子猝灭。当PEI浓度为1.0 mg/mL时，倒置白光OLED器件性能达到最佳，其亮度和效率分别为11 720 cd·m,-2,和16.0 cd·A,-1,。本研究为后期倒置结构高性能OLED器件的研发奠定了一定的基础。

Abstract

In this paper, polyethylenimine(PEI) was introduced into inverted white light-emitting diodes(IOLEDs) with the structure of ITO/ZnO/PEI/EML/TAPC/MoO,3,/Al. The effects of PEI as a surface modification layer on the performance of devices were investigated. It is found that the introduction of PEI can effectively reduce the work function of ZnO electron injection layer and control the electron injection of devices, improving the hole and electron injection balance. At the same time, it can passivate the surface defect states of ZnO and reduce exciton quenching. When the concentration of PEI is 1.0 mg/mL, white IOLEDs possess the optimal performance, with the largest brightness of 11 720 cd·m ,-2, and efficiency of 16.0 cd·A,-1, respectively. The introduction of PEI modified layer lays a foundation for the further research of inverted OLEDs with high performance.

关键词

PEI界面修饰溶液法倒置白光OLED

Keywords

polyethylenimine(PEI)interface modificationsolution processinginverted white OLED

references

由雪萌, 张新稳, 陈月花, 等.非掺杂型高效绿色磷光有机电致发光器件[J].发光学报, 2016, 37(8):961-966.

YOU X M, ZHANG X W, CHEN Y H, et al.. High efficiency green phosphorescent organic light emitting diodes using an ultrathin nondoped emitting layer[J].Chin. J. Lumin., 2016, 37(8):961-966. (in Chinese)

武明珠, 郭闰达, 张振松, 等.面向彩色有机微显示的有机白光顶发射器件[J].液晶与显示, 2015, 30(5):790-795.

WU M Z, GUO R D, ZHANG Z S, et al.. Top emitting white organic light emitting diodes towards full color organic microdisplay[J].Chin. J. Liq. Cryst. Disp., 2015, 30(5):790-795. (in Chinese)

SHEN J L, LI F, CAO Z H, et al.. Light scattering in nanoparticle doped transparent polyimide substrates[J].ACS Appl. Mater. Interfaces, 2017, 9(17):14990-14997.

CAO Y, YU G, PARKER I D, et al.. Ultrathin layer alkaline earth metals as stable electron-injecting electrodes for polymer light emitting diodes[J].J. Appl. Phys., 2000, 88(6):3618-3623.

GONG X, LIM S H, OSTROWSKI J C, et al.. Phosphorescence from iridium complexes doped into polymer blends[J].J. Appl. Phys., 2004, 95(3):948-953.

WU H B, ZOU J H, LIU F, et al.. Efficient single active layer electrophosphorescent white polymer light-emitting diodes[J].Adv. Mater., 2008, 20(4):696-702.

KIM H D, YOO K J, KIM M H, et al.. Challenges to AM-OLED technology for mobile display[C].Proceedings of The 12th International Display Workshops in Conjunction with Asia Display, Takamatsu, Japan, 2005: 267-270.

RJOUB A, TARAWNEH B, ALGHSOON R. Active matrix organic light emitting diode displays(AMOLED) new pixel design[J].Microelectron. Eng., 2019, 212:42-52.

WANG D B, WU Y W, BI R, et al.. Solution-processed sodium hydroxide as the electron injection layer in inverted bottom-emission organic light-emitting diodes[J].J. Mater. Chem. C, 2015, 3(16):3922-3927.

LEE J H, WANG P S, PARK H D, et al.. A high performance inverted organic light emitting diode using an electron transporting material with low energy barrier for electron injection[J].Org. Electron., 2011, 12(11):1763-1767.

LEE B R, JUNG E D, PARK J S, et al.. Highly efficient inverted polymer light-emitting diodes using surface modifications of ZnO layer[J].Nat. Commun., 2014, 5:4840.

ZHOU X, PFEIFFER M, HUANG J S, et al.. Low-voltage inverted transparent vacuum deposited organic light-emitting diodes using electrical doping[J].Appl. Phys. Lett., 2002, 81(5):922-924.

LEE B R, CHOI H, SUNPARK J, et al.. Surface modification of metal oxide using ionic liquid molecules in hybrid organic-inorganic optoelectronic devices[J].J. Mater. Chem., 2011, 21(7):2051-2053.

BOLINK H J, CORONADO E, REPETTO D, et al.. Inverted solution processable OLEDs using a metal oxide as an electron injection contact[J].Adv. Funct. Mater., 2008, 18(1):145-150.

HO S, LIU S Y, CHEN Y, et al.. Review of recent progress in multilayer solution-processed organic light-emitting diodes[J].J. Photonics Energy, 2015, 5(1):057611.

CHEN J S, SHI C S, FU Q, et al.. Solution-processable small molecules as efficient universal bipolar host for blue, green and red phosphorescent inverted OLEDs[J].J. Mater. Chem., 2012, 22(11):5164-5170.

YEOH K H, TALIK N A, WHITCHER T J, et al.. The efficiency enhancement of single-layer solution-processed blue phosphorescent organic light emitting diodes by hole injection layer modification[J].J. Phys. D:Appl. Phys., 2014, 47(20):205103.

YIP H L, HAU S K, BAEK N S, et al.. Self-assembled monolayer modified ZnO/metal bilayer cathodes for polymer/fullerene bulk-heterojunction solar cells[J].Appl. Phys. Lett., 2008, 92(19):193313-1-3.

SUN Y M, SEO J H, TAKACS C J, et al.. Inverted polymer solar cells integrated with a low-temperature-annealed sol-gel-derived ZnO film as an electron transport layer[J].Adv. Mater., 2011, 23(14):1679-1683.

LEE H, PARK I, KWAK J, et al.. Improvement of electron injection in inverted bottom-emission blue phosphorescent organic light emitting diodes using zinc oxide nanoparticles[J].Appl. Phys. Lett., 2010, 96(15):153306-1-3.

POURRAHIMI A M, HOANG T A, LIU D M, et al.. Highly efficient interfaces in nanocomposites based on polyethylene and ZnO nano/hierarchical particles:a novel approach toward ultralow electrical conductivity insulations[J].Adv. Mater., 2016, 28(39):8651-8657.

MORII K, ISHIDA M, TAKASHIMA T, et al.. Encapsulation-free hybrid organic-inorganic light-emitting diodes[J].Appl. Phys. Lett., 2006, 89:183510.

CASTAN A, KIM H M, JANG J. All-solution-processed inverted quantum-dot light-emitting diodes[J].ACS Appl. Mater. Interfaces, 2014, 6(4):2508-2515.

HÖEFLE S, SCHIENLE A, BRUNS M, et al.. Enhanced electron injection into inverted polymer light-emitting diodes by combined solution-processed zinc oxide/polyethylenimine interlayers[J].Adv. Mater., 2014, 26(17):2750-2754.

KIM Y H, HAN T H, CHO H, et al.. Polyethylene imine as an ideal interlayer for highly efficient inverted polymer light-emitting diodes[J].Adv. Funct. Mater., 2014, 24(24):3808-3814.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Design and Performance of Quantum Dot Light-emitting Diode Based on TiO₂ Modified Layer

Effect of Interfacial Modification for TiO₂-based Planar Perovskite Solar Cells Using NaTFSI

Research Progress of Metal Oxide Electron Transporting Materials Applied in Perovskite Solar Cells

Influence of PVA Insulator Modified with Cross-linked PMMA on The Performance of P3HT OFETs

Related Author

No data

Related Institution

Department of Physics and Electronic Engineering, Yancheng Teachers University

Engineering Research Center of Environment-friendly Functional Materials, Ministry of Education, Fujian Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry, College of Materials Science and Engineering, Huaqiao University

School of Material Science and Engineering, Hebei University of Technology

Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University,,, MS

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰