基于新型热交联主体材料VB-CzTAZ的OLED器件的研究 pg电子娱乐游戏app 生物提供定制合成

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。

系统设计VB-CzTAZ水饱和溶液法治备的绿光磷光元件, 开启的电压为5.1 V, 色度为2 404 cd/m2, 直流电压速率为4.3 cd/A, 表面该热塑的材料需要使用于水饱和溶液法治备层层OLED元件。

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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基于对氟苯腈为核心受体单元的咔唑衍生物2,3,5,6-四咔唑-4-氟苯腈(CyFbCz)

为双苯砜为价值体系多巴胺受体模快的咔唑类枝干状TADF氧分子4,4'-对(3,6-二叔丁基咔唑)二苯基砜(G1)4,4'-对-3,6-二(3,6-二叔丁基咔唑)咔唑二苯基砜(G2)4,4'-对3,6-二(3,6-二(3,6-二叔丁基咔唑)咔唑)咔唑二苯基砜(G3)具备有淡蓝色变色的杂配位二环轻金属铱能默契配合物M1-M3(D-A-D)型浅蓝色荧光建材PDC-3-CzPDC-TPAPDC-tBuDPA和谐温馨提醒：仅适用科学研究这里zhn2022.01.20