The invention relates to a crosslinkable organic molecule having a structure of the formula (1) and to the use thereof, wherein Ar is independently of one another, an unsaturated or aromatic carbo- or heterocyclic unit with 5 to 30 ring atoms, selected from the group consisting of naphthalene, anthracene, phenanthrene, pyrene, dihydropyrene, chrysene, perylene, fluoranthene, benzanthracene, tetracene, pentacene, benzpyrene, furan, benzofuran, isobenzofuran, thiophene, benzothiophene, isobenzothiophene, dibenzothiophene, pyrrole, indole, isoindole, carbazole, pyridine, quinoline, isoquinoline, acridine, phenanthridine, benzo-5,6-quinoline, benzo-6,7-quinoline, benzo-7,8-quinoline, phenothiazine, phenoxazine, pyrazole, indazole, imidazole, benzimidazol, naphthimidazole, phenanthrimidazole, pyridimidazole, pyrazine-imidazole, quinoxalinimidazole, oxazole, benzoxazole, naphthoxazole, anthroxazole, phenanthroxazole, isoxazole, isothiazole, 1,3-thiazole, benzothiazole, pyridazine, benzopyridazine, pyrimidine, benzpyrimidine, quinoxaline, pyrazine, phenazine, naphthyridine, azacarbazole, benzocarboline, phenanthroline, 1,2,3-triazole, 1,2,4-triazole, benzotriazole, 1,2,3-oxadiazole, 1,2,4-oxadiazole, 1,2,5-oxadiazole, 1,3,4-oxadiazole, 1,2,3-thiadiazole, 1,2,4-thiadiazole, 1,2,5-thiadiazole, 1,3,4-thiadiazole, 1,3,5-triazine, 1,2,4-triazine, 1,2,3-triazine, tetrazole, 1,2,3,4- oxatriazole, 1,2,3,4-oxatriazole, 1,2,4,5-tetrazine, 1,2,3,4-tetrazine, 1,2,3,5-tetrazin, purine, pteridine, indolizine, benzothiadiazole, indenocarbazole, indenofluorene, spirobifluorene, and indolocarbazole; D1 is a donor group having a structure of the formula (1a); and D2 is a donor group having a structure of the formula (1b).