| abstract |
Organic red electroluminescent device, consisting of a hole transport layer and a luminescent layer between two conductive electrodes, at least one electrode being transparent and the luminescent layer at least one compound of the following general formulas as a dopant or in a mixture with other dopants of other types, in particular luminescent substances but as a dopant of AlQ¶3¶ contains: DOLLAR F1 wherein DOLLAR AR¶1¶ to R¶15¶ are identical or different H, alkyl (C1-C6) or branched alkyl (C1-C6), but preferably iso-propyl or tert . -butyl, DOLLAR AR¶10¶ and R¶15¶ form an alicyclic bridge; DOLLAR A R¶1¶, R¶2¶ or R¶2¶, R¶3¶ and / or R¶8¶, R¶9¶ can form an alicyclic, heterocyclic or aromatic, preferably 5- or 6-membered ring; DOLLAR AR¶3¶, R¶8¶ same or different OH, OR¶16¶, COOR¶16¶, N, N-dialkylamino, acetylamino, halogen and DOLLAR AA¶1¶, A¶2¶ same or different CN, NO¶2¶, COOR¶16¶, where R¶16¶ can be H, alkyl (C1-C6) or branched alkyl (C1-C6) mean DOLLAR A. |