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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
纸质出版日期:2016-06-05,
收稿日期:2016-01-18,
修回日期:2016-03-13,
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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.
为了得到溶液法制备的高性能的OLED器件
基于咔唑和1
2
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(
T
d
: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
2
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。
In order to realize the high efficiency OLEDs by solution process
a cross-linkable host material
VB-CzTAZ containing carbazole and 1
2
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 (
T
d
: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
2
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.
热交联主体材料溶液法PhOLED
thermally cross-linkablehost materialsolution processPhOLED
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