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中文摘要：
本项目从平衡蓝光PhOLED的载流子传输、提高蓝光PhOLED效率、寿命为目标，设计并合成双极性树枝结构蓝色磷光Ir(Ⅲ)金属配合物。以三线态能级较高fac-Ir(pmb)3或fac-Ir(ppz)3为"发光中心"，保证蓝光的色纯度；以双极性的P=O-Cz衍生物为"树枝单元"，改善PhOLED的载流子传输平衡性，提高其效率；引入表面功能团改善发光材料的溶解性，实现器件的全"湿法"加工；构建具有稳定空间立体结构的蓝光PhOLED用发光材料。通过优化设计，合成并提纯上述材料，确定其分子结构，表征其光物理与光化学性能，将其作为主体发光材料制作蓝光PhOLED，研究器件的载流子传输特性；结合实验和理论模拟计算结果，深入地研究该类材料的空间结构、分子间相互作用以及各功能团间的能量传递过程，从深层次上揭示该类蓝色磷光发光材料的发光机理。
结论摘要：
英文主题词Blue PhOLED；Multi-nitrogen heterocyclic；Ambipolar；Free-host OLED；
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