| 摘要 |
<p>The present invention provides carbazol derivative for an organic electroluminescent device, which is expressed by the chemical formula (I), wherein Y represents a hetero atom selected from N, O, P, S, or a bicyclic, tricyclic or heterocyclic ring, and Ar1 and Ar2 are independently alkyl or aryl substituted or unsubstituted aromatic hydrocarbon, or alkyl or aryl substituted or unsubstituted heterocyclic aromatic hydrocarbon, respectively.</p> |
