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基于新型热交联主体材料VB-CzTAZ的OLED器件的研究 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。 基于VB-CzTAZ溶液法制备的绿光磷光器件, 启动电压为5.1 V, 亮度为2 404 cd/m2, 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。 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. 提供金属配合物，热激活延迟荧光(TADF)材料，聚集诱导延迟荧光（AIDF）材料，聚集诱导发光AIE材料的定制合成 给体-受体(D-A)型蓝色荧光材料PC-3-Cz PC-TPA PC-tBuDPA D-A型荧光分子BP-SDPA D-A-D型荧光分子BP-DDPA 深蓝色荧光分子AC-Ph-Cz AC-Ph-tBuCz AC-Ph-mCz 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) 基于双苯砜为核心受体单元的咔唑类树枝状TADF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) 具有蓝色发光的杂配位三环金属铱配合物M1-M3 (D-A-D)型蓝色荧光材料PDC-3-Cz PDC-TPA PDC-tBuDPA 温馨提示：仅用于科研 小编zhn2022.01.20