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((II) 双 ((arylacetylide) 复合物含有二甲胺替代双甲联体,用于可溶液处理的光OLED应用

Wai-Yeung Wong^1,2,3,4, Zheng Xie^2,5, Qiwei Wang^1,2

¹Antibiotics Research and Reevaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, P. R. China.

Dalton transactions (Cambridge, England : 2003)

|September 23, 2024

概括

新的复合物与二氨基替代双二连接物提供可调节的光效应,用于高效的有机发光装置. 这些材料显示出改进的孔传输,并实现高亮度和量子效率.

科学领域:

材料科学材料科学材料科学
有机化学有机化学
光物理学的光学物理学

背景情况:

光有机发光二极管 (PHOLED) 对于节能显示器和照明至关重要.
开发具有增强电荷传输特性的新型排放材料是提高PHOLED性能的关键.
(II) 复合物因其光特性而受到广泛研究.

研究的目的:

为了合成和表征新的 (II) 复合物与二氨基替代的2.2'-二氨酸 (bpy) 和替代的氨基化物连接物.
研究替代剂对这些复合物的光物理性质 (例如,光能量) 和电子特征 (例如,孔运输) 的影响.
为了制造和评估溶液处理的PHOLED,利用这些新的Pt(II) 复合物作为排放性剂.

主要方法:

合成二氨基替代的bpy联结体和阿瑞拉乙酸联结体.
配合 ((II) 的配合体形成 (N^N) Pt ((CC-Ar) 2) 复合体.
光物理特征包括光谱学.
使用宿主材料 (多9-乙烯基碳醇) 和合成的PtII复合物制造PHOLED.
设备性能测试以测量发光效率和外部量子效率.

主要成果:

合成的Pt(II) 复合物在引入三甲基和甲氧基替代物后表现出可调节的光色.
在bpy联体上使用的二甲氨基替代物增强了孔输送特性.
使用这些复合物制造的溶液加工PHOLED显示出有前途的性能.
最好的设备实现了高达20cdA-1的发光效率和7%的外部量子效率.

结论:

用二胺基替代的bpy配体和定制的阿瑞拉化物配体在设计高效的Pt (II) 光发射器方面是有效的.
开发的材料显示出在高性能,溶液加工的PHOLED中使用的潜力.
进一步优化可能会导致有机电子应用的效率更高.

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