Patent ID: 7488856

Claim:
An OLED comprising as emitter molecules fluoranthene derivatives of the general formula (I) wherein R 1 and R 2 are each independently selected from a linear, branched or cyclic, halogen-, nitro-, ether- or carboxyl-substituted or unsubstituted C 1 - to C 20 -alkyl group, in which one or more nonadjacent carbon atoms of the alkyl group which is/are not bonded directly to the fluoranthene skeleton may be replaced by Si, P, O or S, a C 6 - to C 30 -aryl group which may be unsubstituted or substituted by alkoxy-, C 6 - to C 14 -aryl groups, or linear, branched or cyclic C 1 - to C 20 -alkyl groups which may be unsubstituted or may in turn be substituted by halogen, nitro, ether or carboxyl groups and/or in which one or more carbon atoms of the alkyl groups may be replaced by Si, P, O or S, or a C 4 - to C 14 -heteroaryl group which is unsubstituted or substituted by the substituents specified with regard to the aryl group and comprises at least one nitrogen or sulfur atom, a group of the formula (E)- or (Z)-CH═CH—C 6 R 4 5 in which R 4 is H or CH 3 , a group of the formula an acryloyl or methacryloyl group, a vinyl ether radical or a group of the formula in which Y 1 is —CH═CH 2 , (E)- or (Z)- CH═CH—C 6 H 5 , acryloyl, methacryloyl, methylstyryl, —O—CH═CH 2 or glycidyl, and a fused aromatic such as naphthalene, anthracene, pyrene, phenanthrene and perylene, which may be substituted by one or more halogen, nitro, ether or carboxyl radicals, and wherein R 3 is hydrogen.