A compound for an organic light-emitting device represented by Formula 1: wherein, in Formula 1, A1 is selected from an aromatic group and an aromatic group having extended π-conjugation, R1 is selected from hydrogen and a C1-C60 alkyl group, L1 and L2 are each independently selected from —O—, —S—, a C1-C20 alkylene group, a C1-C20 oxyalkylene group, and a C1-C20 thioalkylene group; and a C1-C20 alkylene group, a C1-C20 oxyalkylene group, and a C1-C20 thioalkylene group, each substituted with at least one selected from a C1-C20 alkyl group and a C1-C20 alkoxy group, n1 and n2 are each independently selected from 0, 1, 2, 3, 4, and 5, R2 and R3 are each independently selected from hydrogen and a first cross-linking group, provided that at least one of R2 and R3 is the first cross-linking group, and X is selected from —F, —Cl, —Br, and —I.