| abstract |
The invention belongs to the field of organic electroluminescent materials, and discloses a carbazole compound and an application thereof. The carbazole compound disclosed in the present invention has a structure shown in formula (I), and is a carrier-balanced host material. Using the compound of the present invention as the host material of an OLED device has a lower turn-on voltage and higher luminous efficiency ; Moreover, due to the introduction of substituents at the 2-position of carbazole, the structure of the carbazole compound of the present invention is asymmetric, which is conducive to improving film-forming properties and maintaining the stability of OLED devices in long-term use. |