I-Corps: Metal-assisted Delayed Fluorescent Emitters for Organic Displays

有机电致发光二极管(OLED)被认为是下一代显示器和照明设备的替代品，受到了学术界和工业界的高度重视。拟议的项目集中在合成有机化学、材料科学与工程、半导体物理和器件工程的界面上，以进一步开发有机发光二极管。为了达到最大的器件效率(即将所有注入的电子转化为光子)，它将需要发射材料收集所有电子产生的萃取物。从该项目中获得的知识研究将有助于了解有机激子辐射衰减过程的基本机制，包括发射效率和发射光谱的形状。该项目中的新型金属辅助延迟荧光材料将对继续努力开发具有成本效益的显示器和固态照明做出重大贡献。现有的磷光发射器需要使用Ir等重金属离子，由于它们在地球上的自然丰度较低，因此可能会很昂贵。另一方面，金属辅助延迟荧光材料可能会利用所有的电生激子，并依赖于更自然丰富的金属元素。这种技术将为有机显示器和固态照明提供更具成本效益的替代发光材料。

Organic Light Emitting Diodes (OLEDs) have been considered as alternate for the next generation of displays and illumination devices, which has received great attentions from academia and industries. The proposed project converges at the interface of synthetic organic chemistry, materials science and engineering, semiconductor physics and device engineering to further develop OLEDs. In order to achieve the maximum device efficiency (i.e. converting all of injected electron to photons), it will require emissive materials to harvest all of electron-generated exactions. The knowledge research gain from this project will help to understand the fundamental mechanisms governing the radiative decay process of organic excitons including the emission efficiency and the shape of the emission spectrum.The new classes of metal-assisted delay fluorescence materials in this project will significantly contribute to continuing efforts towards developing a cost-effective displays and solid state lighting. The existing phosphorescent emitters require the utilization of heavy metal ions like Iridium, which could be potentially expensive due to their low natural abundance on the earth. On the other hand, metal-assisted delay fluorescence materials could potentially utilize all of electro-generated excitons and rely on more naturally abundant metal elements. Such technology will provide more cost-effective alternative emissive materials for organic displays and solid state lighting.