High Efficiency Green Phosphorescent Organic Light Emitting Diodes Using An Ultrathin Nondoped Emitting Layer

YOU Xue-meng; ZHANG Xin-wen; CHEN Yue-hua; LAI Wen-yong; HUANG Wei

doi:10.3788/fgxb20163708.0961

您当前的位置：

首页 >

文章列表页 >

High Efficiency Green Phosphorescent Organic Light Emitting Diodes Using An Ultrathin Nondoped Emitting Layer

更新时间：2020-08-12

- High Efficiency Green Phosphorescent Organic Light Emitting Diodes Using An Ultrathin Nondoped Emitting Layer
- Chinese Journal of Luminescence Vol. 37, Issue 8, Pages: 961-966(2016)
- 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
  2. 南京工业大学先进材料研究院, 江苏南京 211816
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163708.0961
  CLC： TN383+.1
- Received：23 March 2016，
  
  Revised：22 April 2016，
  
  Published：05 August 2016
- 稿件说明：
移动端阅览
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 Xue-meng, ZHANG Xin-wen, CHEN Yue-hua etc. High Efficiency Green Phosphorescent Organic Light Emitting Diodes Using An Ultrathin Nondoped Emitting Layer[J]. Chinese Journal of Luminescence, 2016,37(8): 961-966
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 DOI： 10.3788/fgxb20163708.0961.

YOU Xue-meng, ZHANG Xin-wen, CHEN Yue-hua etc. High Efficiency Green Phosphorescent Organic Light Emitting Diodes Using An Ultrathin Nondoped Emitting Layer[J]. Chinese Journal of Luminescence, 2016,37(8): 961-966 DOI： 10.3788/fgxb20163708.0961.

摘要

在空穴传输层TCTA与电子传输层TPBi之间引入磷光染料Ir（ppy）

超薄发光层，制备了结构为ITO/MoO

（2 nm）/NPB（40 nm）/TCTA（10 nm）/Ir（ppy）

（

nm）/TPBi（40 nm）/LiF（1 nm）/Al（80 nm）的非掺杂磷光有机电致发光器件。通过调控非掺杂发光层的厚度，详细研究了Ir（ppy）

层厚度对器件性能的影响。实验结果表明，当非掺杂发光层厚度为0.2 nm时，器件的性能最好，器件的亮度、效率和外量子效率分别达到26350 cdm

-2

、42.9 cdA

-1

和12.9%。研究结果表明，采用超薄的非掺杂发光层可以简化器件结构和制备工艺，获得高效率的OLED器件。

Abstract

The nondoped emitting layer (EML) was constructed by introducing a ultrathin layer of pure green phosphorescent dye tris(2-phenylpyridine)iridium between a hole transporting layer TCTA and an electron transporting layer TPBi. The device structure is ITO/MoO

(2 nm)/NPB(40 nm)/TCTA(10 nm)/Ir(ppy)

(0.1-0.5 nm)/TPBi(40 nm)/LiF(1 nm)/Al(80 nm). The thickness of EML can affect the performance of green phosphorescent organic light emitting diodes (PhOLEDs). By changing the thickness of emitting layers

the best performance of green PhOLEDs can be achieved with a 0.2 nm pure phosphorescent dye. The device exhibits highly efficient green emission with a maximum luminance of 26 350 cdm

-2

a maximum current efficiency of 42.9 cdA

-1

and a maximum external quantum efficiency of 12.9%. These results indicate that the high performance PhOLEDs can be realized with only ultrathin nondoped EMLs in a simple way.

关键词

Keywords

references

胡俊涛,程群,余承东,等. Bphen掺杂Cs2CO3作为电子传输层对OLED器件性能的影响[J].液晶与显示,2015, 30(6):943-948. HU J T, CHENG Q, YU C D, et al.. Impact of Bphen doping Cs2CO3 as electron transport layer on the performance of OLEDs[J]. Chin. J. Liq. Cryst. Disp., 2015, 30(6):943-948. (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)

ZHANG X W, HU Q, LIN J Y, et al.. Efficient and stable deep blue polymer light-emitting devices based on -phase poly(9,9-dioctylfluorene)[J]. Appl. Phys. Lett., 2013, 103(15):153301-1-5.

ZHANG X W, GUO X, CHEN Y H, et al.. Highly efficient red phosphorescent organic light-emitting devices based on solution-processed small molecular mixed-host[J]. J. Lumin., 2015, 161:300-305.

ZHANG X W, YANG T, WEI Q, et al.. Arylfluorene based universal hosts for solution-processed RGB and white phosphorescent organic light-emitting devices[J]. RSC Adv., 2015, 5(14):94077-94083.

ZHAO Y B, CHEN J S, MA D G. Ultrathin nondoped emissive layers for efficient and simple monochrome and white organic light-emitting diodes[J]. ACS Appl. Mater. Interf., 2013, 5(3):965-971.

XUE K W, SHENG R, DUAN Y, et al.. Efficient non-doped monochrome and white phosphorescent organic light-emitting diodes based on ultrathin emissive layers[J]. Org. Electron., 2015, 26:451-457.

CHEN S M, ZHAO Z J, TANG B Z, et al.. Non-doped white organic light-emitting diodes based on aggregation-induced emission[J].J. Phys. D-Appl. Phys., 2010, 43(9):095101-1-5.

LIU S M, LI B, ZHANG L M, et al.. Enhanced efficiency and reduced roll-off in nondoped phosphorescent organic light-emitting devices with triplet multiple quantum well structures[J]. Appl. Phys. Lett., 2010, 97(8):083304-1-3.

ZHAO Y B, ZHU L P, CHEN J S, et al.. Improving color stability of blue/orange complementary white OLEDs by using single-host double-emissive layer structure:comprehensive experimental investigation into the device working mechanism[J]. Org. Electron., 2012, 13(8):1340-1348.

JANG J G, SHIN H K. High efficiency green phosphorescent organic light emitting device with (TCTA/TCTA0.5TPBi0.5/TPBi):Ir(ppy)3 emission layer[J]. Thin Solid Films, 2009, 517(14):4122-4126.

LAW C W, LAU K M, FUNG M K, et al.. Effective organic-based connection unit for stacked organic light-emitting devices[J]. Appl. Phys. Lett., 2006, 89(13):133511-1-3.

XIAO L X, CHEN Z J, QU B, et al.. Recent progresses on materials for electrophosphorescent organic light-emitting devices[J]. Adv. Mater., 2011, 23(8):926-952.

HUNG W Y, KE T H, LIN Y T, et al.. Employing ambipolar oligofluorene as the charge-generation layer in time-of-flight mobility measurements of organic thin films[J]. Appl. Phys. Lett., 2006, 88(6):064102-1-3.

YANG X X, DU X Y, TAO S L, et al.. Efficient hole-transporter for phosphorescent organic light emitting diodes with a simple molecular structure[J]. Org. Electron., 2015, 26:481-486.

Views

236

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Luminescence and Applications of Single Quantum Dots

Excitons and Their Efficient Utilization in OLEDs

Pressure-induced K-Λ Crossover of Excitons Emissions in Monolayer WSe₂ and MoSe₂

Numerical Study of Heat Dissipation Model for Organic Light-emitting Diodes

A Novel Spectrum Expanding Phenomenon Based on Inserting LiF Layer in Emitting Layer in OLEDs

Related Author

XU Xiulai

SHI Shushu

YANG Jingnan

CHEN Xiqing

LI Hancong

MA Dongge

FU Xi-hong

LI Fang-fei

Related Institution

State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics， School of Physics， Peking University

Beijing Academy of Quantum Information Sciences

Beijing National Laboratory for Condensed Matter Physics， Institute of Physics， Chinese Academy of Sciences

Center for Aggregation-induced Emission， Institute of Polymer Optoelectronic Materials and Devices， Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates， State Key Laboratory of Luminescent Materials and Devices， School of Materials Science and Engineering， South China University of Technology

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

AI问答

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