abstract |
A heterocyclic compound represented by Formula 1 and an organic electroluminescence device including the same in an emission layer. n n n n n n n n n n In Formula 1, Z is represented by Formula 2-1 or 2-2. n n n n n n n n n n In Formula 2-2, X 1 to X 3 are each independently CR 10 or N, and at least one of X 1 to X 3 is N. |