| abstract |
A biscarbazole derivative represented by the following formula (1) having a specific substituent and a plurality of organic thin film layers including a light emitting layer between a cathode and an anode, and at least one of the organic thin film layers is the biscarbazole derivative An organic EL device having high emission efficiency and a long lifetime and a biscarbazole derivative for realizing the organic EL device are provided. (In the formula, A 1 and A 2 independently represent a substituted or unsubstituted aromatic hydrocarbon having 6 to 30 ring carbon atoms, and Y 1 to Y 16 independently represent C (R) or N. , R each independently represents a hydrogen atom, etc., L 1 and L 2 each independently represent a single bond, etc. provided that at least one of A 1 , A 2 and R is a substituted or unsubstituted fluorane. A tenenyl group, etc.) |