| abstract |
An organic EL element that emits light with high efficiency and is driven at a lower driving voltage, an aromatic heterocyclic derivative obtained by using the organic EL element, and a material for an organic EL element containing the derivative. An aromatic heterocyclic derivative represented by formula (4), an organic EL device material containing the same, and an organic EL device. (X 1 to X 3 are N or CR 1 ; R 1 is H, halogen, aryl group, etc .; A is formula (5); L 1 is a linking group; a is an integer of 1 to 5; Ar 1 and Ar 2 formulas (5) or aryl group) [Selection figure] None |