| abstract |
The biscarbazole derivative of the present invention is characterized by being represented by the following formula (1). [In the above formula (1), A 1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms. A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms. X 1 and X 2 represent linking groups, and Y 1 to Y 4 represent substituents. p and q represent integers of 1 to 4, and r and s represent integers of 1 to 3]. |