Novel 9 membered ring carbazole compounds are disclosed, which can be used as host materials etc. in an electroluminescent device. Compared with the existing host materials etc., these novel compounds can effectively modulate the charge transporting properties in the above materials and give OLEDs better performance. Also disclosed are an electroluminescent device and a formulation.
本发明公开了新型 9 成员环
咔唑化合物,它们可用作电致发光器件中的宿主材料等。与现有的宿主材料等相比,这些新型化合物可有效调节上述材料的电荷传输特性,使有机发光二极管具有更好的性能。此外,还公开了一种电致发光装置和一种配方。