| 溶液法制备基于新型热交联主体材料OLED器件的研究 |
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| 引用本文： | 唐远菊,庄锦勇,苏文明,张东煜,崔铮,郝健.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. |
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| 作者姓名： | 唐远菊 庄锦勇 苏文明 张东煜 崔铮 郝健 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然基金青年基金(21402233)，江苏省自然科学基金青年项目(BK20140387) |
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| 摘 要： | 为了得到溶液法制备的高性能的OLED器件,基于咔唑和1,2,4-三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(Td: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5.1 V,最大亮度为2 404 cd/m~2,最大电流效率为4.3 cd/A,表明该交联材料可以用于溶液法制备多层OLED器件。
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| 关 键 词： | 热交联 主体材料 溶液法 PhOLED |
| 收稿时间： | 2016-01-18 |
Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material |
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| TANG Yuan-ju,ZHUANG Jin-yong,SU Wen-ming,ZHANG Dong-yu,CUI Zheng,HAO Jian.Solution-processed OLEDs Based on A Novel Thermally Cross-linkable Host Material[J].Chinese Journal of Luminescence,2016,37(6):688-695. |
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| Authors: | TANG Yuan-ju ZHUANG Jin-yong SU Wen-ming ZHANG Dong-yu CUI Zheng HAO Jian |
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| Institution: | 1. College of Science, Shanghai University, Shanghai 200444, China;
2. Printable Electronics Research Center, Suzhou Institute of Nano-Technology and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China |
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| Abstract: | 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 ( Td: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/m2 , 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. |
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| Keywords: | thermally cross-linkable host material solution process PhOLED |
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