An organic electroluminescence device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region. The emission layer includes a nitrogen-containing compound. The nitrogen-containing compound includes a triazine moiety and a carbazole moiety. In the carbazole moiety, at least one position among 2, 3 and 7 is substituted; each of positions 2 and 7 is substituted or unsubstituted with a substituted or unsubstituted phenyl group, or a substituted or unsubstituted carbazole group; and position 3 is substituted or unsubstituted with a substituted or unsubstituted phenyl group.
有机电致发光器件包括第一电极、设置在第一电极上的空穴传输区、设置在空穴传输区上的发射层、设置在发射层上的电子传输区和设置在电子传输区上的第二电极。发射层包括一种
含氮化合物。该
含氮化合物包括三嗪基和
咔唑基。在
咔唑基中,2、3和7中至少有一个位置被取代;2和7位置中的每一个都是被取代或未被取代的苯基或
咔唑基;位置3是被取代或未被取代的苯基。