申请人:ELM CO., LTD. 주식회사 이엘엠(120020276957) Corp. No ▼ 110111-2435439BRN ▼214-87-04493
公开号:KR20210128618A
公开(公告)日:2021-10-27
본 발명은 유기 전기 발광 소자에 사용되는 화합물 유도체와 이를 이용한 유기 전기 발광 소자에 관한 것으로, 더욱 자세하게는 인돌로카바졸릴기와 스파이로바이플루오레닐기를 포함하는 방향족 화합물에 대한 것이며, 이것을 유기 전기 발광 소자의 유기층에 발광재료로 사용하면 낮은 구동전압으로도 높은 발광효율을 가지게 할 수 있는 효과가 있다.
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 hydrogen, halogen or alkyl or alkoxy group having 1 to 20 carbon atoms wherein at least one hydrogen atom is optionally replaced by halogen; RA, RB, RC, RD and RE are any of substituents other than hydrogen wherein at least two of R1 and RA may further form a fused ring; and i, j, k, l and m are same or different at each occurrence and represent an integer from 0 to 4, with the proviso that when R1 is hydrogen, i is not 0. 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.