Effect of Doping Concentration and Thickness on Properties of White OLED

WANG Li-zhong; JIANG Wen-long; WANG Guang-de; ZHANG Gang; CONG Lin; MENG Zhao-hui; GAO Yon

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Effect of Doping Concentration and Thickness on Properties of White OLED

Device Technology & Physics | 更新时间：2020-08-12

- Effect of Doping Concentration and Thickness on Properties of White OLED
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 3, Pages: 386-390(2010)
- 作者机构：
  
  吉林师范大学信息技术学院,吉林四平,136000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN383+.1
- Received：20 October 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 June 2010，
  
  Published：30 June 2010
- 稿件说明：
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王立忠;姜文龙;王广德;张刚;丛林;孟昭晖;高永慧. 掺杂浓度和厚度对有机白光器件性能的影响[J]. 液晶与显示, 2010,25(3): 386-390

WANG Li-zhong;JIANG Wen-long;WANG Guang-de;ZHANG Gang;CONG Lin;MENG Zhao-hui;GAO Yong-hui. Effect of Doping Concentration and Thickness on Properties of White OLED[J]. 液晶与显示, 2010,25(3): 386-390
王立忠;姜文龙;王广德;张刚;丛林;孟昭晖;高永慧. 掺杂浓度和厚度对有机白光器件性能的影响[J]. 液晶与显示, 2010,25(3): 386-390 DOI：

WANG Li-zhong;JIANG Wen-long;WANG Guang-de;ZHANG Gang;CONG Lin;MENG Zhao-hui;GAO Yong-hui. Effect of Doping Concentration and Thickness on Properties of White OLED[J]. 液晶与显示, 2010,25(3): 386-390 DOI：

摘要

介绍了结构为ITO/2T(20 nm)/NPBX(15 nm)/DPVBi(15 nm)/Alq

∶ Rubrene(10

) nm/Alq

(40 nm)/LiF(0.5 nm)/Al的掺杂方法制备的白光器件。其中掺杂浓度

分别为1%、2%、3%、4%和5%(质量分数)。这种结构充分利用了Rubrene在有机电致发光器件中的良好的掺杂特性

从而使器件发射出性能较好的白光。首先讨论了Rubrene的掺杂浓度对器件性能的影响。当Rubrene掺杂浓度是3%(质量分数)时

色度最好(0.32

0.32)且色坐标稳定。在此基础上

讨论了掺杂层厚度对器件性能的影响。掺杂层的厚度

分别为10

30 nm变化时

制作了5个器件。随着掺杂层厚度的增加

器件发出的蓝光和黄光相对平衡

色度较好。其中掺杂层厚度为20 nm时

器件的效率和亮度均最高

分别达到5.10 cd/A 和17 130 cd/m

。

Abstract

White organic light-emitting diodes with the structure of ITO/2T-NATA (20 nm)/NPBX(15 nm)/DPVBi(15 nm)/Alq

∶ rubrene(10

)nm/Alq

(40 nm)/LiF(0.5 nm)/Al were demonstrated. The doping concentrations were 1%

4% and 5%(mass fraction)

respectively. In this structure

because the doping character of rubrene was full used

the characters of WOLEDs were better. The effect of the doping concentration on the EL color was firstly discussed

it was found that 3% doping offers the Commission International de LEclairage coordinates (0.32

0.32) and high color stability. On this condition

the thickness of doping layer(

) was studied

the thickness is 10

30 nm

respectively. With the increasing of the thickness

the yellow and blue emissions balanced for forming white EL color. When the thickness was 20 nm

the efficiency and brightness were optima

they are 5.10 cd/A and 17 130 cd/m

respectively.

关键词

Keywords

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Related Institution

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Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics

Institute of Optoelectronic Technology, School of Science, Beijing Jiaotong University

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