This invention relates to the development of heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on a pair of
5
-membered aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. The materials were determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.
本发明涉及开发杂环材料,用作OLED设备中的蓝色荧光材料。该材料基于两个相互连接的5元芳香或伪芳香环,并与过渡
金属配合。计算确定该材料具有适当的三重能级以用作蓝色发射体,并具有足够的
化学稳定性以用于设备。