| 摘要 |
<p>The present invention provides an organic EL material which improves luminous efficiency and realizes long-term durability. The organic EL material is represented by formula (1). In formula (1), X_1, X_2, X_3 and X_4 are a nitrogen atom or a carbon atom forming a single bond with R_1; R_1 is a hydrogen atom, halogen atom, an aryl group or a heteroaryl group of C6-C18, or an alkyl group of C1-C12; R_2 to R_10 are an aryl group or a heteroaryl group of C6-C30, respectively; and at least one among X_1 to X_4 is a nitrogen atom.</p> |
