非掺杂型高效绿色磷光有机电致发光器件

由雪萌; 张新稳; 陈月花; 赖文勇; 黄维

doi:10.3788/fgxb20163708.0961

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非掺杂型高效绿色磷光有机电致发光器件

器件制备及器件物理 | 更新时间：2020-08-12

- 非掺杂型高效绿色磷光有机电致发光器件
- High Efficiency Green Phosphorescent Organic Light Emitting Diodes Using An Ultrathin Nondoped Emitting Layer
- 发光学报 2016年37卷第8期页码：961-966
- 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：
  
  国家重点基础研究计划（2014CB648300）国家自然科学基金（61204048）南京邮电大学科研基金（NY214178，NY214093，NY215076）江苏高校
- DOI：10.3788/fgxb20163708.0961
  中图分类号： TN383+.1
- 纸质出版日期：2016-8-5，
  
  收稿日期：2016-3-23，
  
  修回日期：2016-4-22，
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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

超薄非掺杂发光层有机电致发光二极管激子

Keywords

ultrathin nondoped emissive layerorganic light-emitting diodesexcitons

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