The present invention includes novel heterocyclic materials for use as blue phosphorescent materials in OLED devices. The novel materials include two fused 5-membered aromatic or pseudoaromatic rings, which are bonded with 6 membered aromatic rings to serve as chelation ligands for a transition metal. The novel materials were determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.
本发明包括用于 OLED 设备中蓝色
磷光材料的新型杂环材料。这些新型材料包括两个融合的 5 元芳香环或假芳香环,它们与 6 元芳香环结合,作为过渡
金属的螯合
配体。通过计算确定,这些新型材料具有适当的三重能,可用作蓝色发光体,并具有足够的
化学稳定性,可用于设备中。