共沉积技术原位合成Cu(I)配位簇（聚）合物OLED发光层及其XAFS结构确证

Organic Light-Emitting Diodes （OLEDs）are attracting great attention due to their numerous property predominance. However, the problems of luminescent efficiency and cost limit the application. Cu(I) coordinated compounds, which are cheap, environmentally friendly and good emitter, are the prosperous candidates. Cu(I) coordinated clusters or polymers containing halogens especially show high efficiency of luminescence. Nevertheless, the single heat-source evaporation method and solution technique restrict the application on OLED devices. This project innovatively proposes a new way to fabricate the goal luminophor in situ by the codeposition technique with the formation of the films in the meantime. The formation of the noncrystalline film will be tested and confirmed by our innovatively designed series of XAFS structural confirmation technique. The research will be carried out as follow. The Cu(I) coordinated clusters or polymers containing halogens with high luminescent efficiency will be designed and synthesized initiatively. The selected luminophors with high efficiency will be set as the goal structures to fabricate in situ by the codeposition technique for coating films. After the primitive structural check through luminescent spectra etc., the molecular structure of the noncrystalline film will be confirmed by the XAFS spectra. The successful promotion of this project will help to found the innovative film fabrication technique by codeposition method,to declare the inherent law of the codeposition technique for coating films, to push forth the way from the new types of luminescent materials to OLEDs devices, and to lay the foundation for the improvement of the luminescent efficiency and cost.

有机发光二极管（OLED）因其众多的性能优势而备受关注，但贵金属发光体的发光效率和成本等问题仍极大地制约其应用。Cu(I)配合物廉价易得、环境友好、发射特性好，是极有前景的替代材料。尤其是含卤素Cu(I)配位聚（簇）合物发光效率高，但目前的单源热蒸镀和溶液工艺却限制其用于OLED器件。本项目创新性地提出共沉积原位合成目标发光体同时成膜的制作方法，而目标非晶态膜层的形成，将通过我们创新设计的系列XAFS结构确证技术加以检测和确证。具体内容为：自主设计合成高效含卤素Cu(I)配位聚（簇）合物发光体，从中筛选出高效发光体作为目标结构进行共沉积原位合成镀膜，经过发光光谱等初步结构验证后，最终用XAFS方法确证目标非晶态镀层的分子结构。本项目的顺利开展将有助于建立共沉积镀膜的创新制作工艺，阐明共沉积镀膜的内在规律，打通新型发光材料到OLED器件的制作通道，为OLED的发光效率和成本改善提供基础支撑。

有机发光二极管（OLED）因其众多的性能优势而备受关注，但贵金属发光体的发光效率和成本等问题仍极大地制约其应用。Cu(I)配合物廉价易得、环境友好、发射特性好，是极有前景的替代材料。尤其是含卤素Cu(I)配位聚（簇）合物发光效率高，但目前的单源热蒸镀和溶液工艺却限制其用于OLED器件。在本项目的支持下，我们开展了含卤素Cu(I)配位簇（聚）合物的设计合成和表征，利用自主设计合成的系列恶唑基吡啶类配体和含氮杂芴类配体，与CuX (X = Cl, Br, I)以及含膦配体通过配位反应合成了两个系列24个含卤素Cu(I)配位簇（聚）合物，利用红外、紫外等表征手段对所合成的配合物进行了全面的表征，利用X-射线单晶衍射确定了配合物的晶体结构，详细研究了配合物的发光性能。借助理论计算方法辅助获得了结构-性能关系规律，并反馈指导结构设计，完成了高效发光的目标发光体粉末的合成。同时，以获得的特定目标发光体为目标，探索了共沉积原位蒸镀目标发光层的实验参数，并利用XAFS技术确认了部分镀膜层的结构。较为成功地完成了项目预期的科研计划任务。本项目的相关研究工作，已在国际主流期刊发表 SCI/EI论文8 篇，申请国家发明专利11项并已经公开。还有多篇研究成果正在整理投稿或准备专利材料。另外已培养硕士研究生五名,其中两名研究生已经顺利毕业，三名在读。我们将在这个研究领域继续深入研究，巩固本项目的成果。