Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material

TANG Yuan-ju; ZHUANG Jin-yong; SU Wen-ming; ZHANG Dong-yu; CUI Zheng; HAO Jian

doi:10.3788/fgxb20163706.0688

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Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material

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- Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material
- Chinese Journal of Luminescence Vol. 37, Issue 6, Pages: 688-695(2016)
- 作者机构：
  
  1. 上海大学理学院上海,200444
  2. 中国科学院苏州纳米技术与纳米仿生研究所印刷电子技术研究中心,江苏苏州,215123
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163706.0688
  CLC： TN383+.1
- Received：18 January 2016，
  
  Revised：13 March 2016，
  
  Published：05 June 2016
- 稿件说明：
移动端阅览
唐远菊, 庄锦勇, 苏文明等. 溶液法制备基于新型热交联主体材料OLED器件的研究[J]. 发光学报, 2016,37(6): 688-695

TANG Yuan-ju, ZHUANG Jin-yong, SU Wen-ming etc. Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material[J]. Chinese Journal of Luminescence, 2016,37(6): 688-695
唐远菊, 庄锦勇, 苏文明等. 溶液法制备基于新型热交联主体材料OLED器件的研究[J]. 发光学报, 2016,37(6): 688-695 DOI： 10.3788/fgxb20163706.0688.

TANG Yuan-ju, ZHUANG Jin-yong, SU Wen-ming etc. Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material[J]. Chinese Journal of Luminescence, 2016,37(6): 688-695 DOI： 10.3788/fgxb20163706.0688.

摘要

为了得到溶液法制备的高性能的OLED器件

基于咔唑和1

4-三氮唑基团及可热交联的苯乙烯基团

设计并合成了可热交联的主体材料VB-CzTAZ。测试结果表明

VB-CzTAZ具有很好的热稳定性(

:323℃)

把该材料溶于氯苯旋涂成膜

该膜在手套箱中190℃下发生热交联。不同溶剂的薄膜清洗实验表明

热交联后的VB-CzTAZ具有优秀的抗溶剂性。基于VB-CzTAZ溶液法制备的绿光磷光器件

最低启动电压为5.1V

最大亮度为2404cd/m

最大电流效率为4.3cd/A

表明该交联材料可以用于溶液法制备多层OLED器件。

Abstract

In order to realize the high efficiency OLEDs by solution process

a cross-linkable host material

VB-CzTAZ containing carbazole and 1

4-triazole units was designed and synthesized. It is found that VB-CzTAZ with styryl groups can be thermally cross-linked by curing at 190 ℃ without any polymerization initiator. Besides the excellent thermal stability (

:323 ℃) and good surface morphology

the thermally cross-linked film of VB-CzTAZ also shows excellent solvent resistances as rinsing with different solvent. For the phosphorescent OLEDs (PhOLED) incorporating VB-CzTAZ as host

the turn-on voltage is 5.1 V

the maximum luminance is 2 404 cd/m

and the maximum current efficiency is 4.3 cd/A

respectively. It indicates that the cross-linkable host material has potential to be used for the solution-processed multilayer PhOLED.

关键词

Keywords

references

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