The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I).
wherein R1 is selected from the group consisting of halogen or alkyl or alkoxy group having 1 to 20 carbon atoms wherein one or more hydrogen atom may be replaced by halogen; RA, RB, Rc, RD and RE are any of substituents; and i, j, k, l and m are same or different at each occurrence and represent an integer from 0 to 4. By introduction of the substituent on N-phenyl, the device efficiency, stability and lifetime can be increased while maintaining the solubility. These compounds can be used in various organic devices such as organic light emitting diodes, photovoltaic cells or organic semiconductor devices.
本发明涉及一种在N-苯基上具有取代基的新型三
咔唑化合物,其可以用式(I)表示。其中R1选自卤素、烷基或含有1至20个碳原子的烷氧基团,其中一个或多个氢原子可被卤素取代;RA、RB、Rc、RD和RE是任意的取代基;i、j、k、l和m在每次出现时相同或不同,并表示从0到4的整数。通过在N-苯基上引入取代基,可以提高器件的效率、稳定性和寿命,同时保持溶解性。这些化合物可用于各种有机器件,如有机发光二极管、光伏电池或有机半导体器件。