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AssigneeSynTec Gesellschaft fuer Chemie und Technologie der Informationsaufzeichnung mbH
InventorsAndreas Richter, Dietmar Keil, Gerhard Diener
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Abstract of Disclosure The invention concerns an electro-luminescent device in which the luminescent layer contains a compound of general formula I as doping agent or as luminescent compound, whereby the radicals R1 to R12 are identical or are different, and mean hydrogen, straight chain or branched C1-C6 alkyl, aralkyl, aryl or substituted aryl; R1 and R2 and/or R3 and R4 and/or R4 and R5 and/or R5 and R11 and/or R8 and R5 and/or R4 and R12 can form an alicyclic, heterocyclic or aromatic ring; R5 can furthermore be H, OH, OR9, N,N-di-(C1-C6) alkylamino, acetylamino or halogen; R6 and R7 together can form an alicyclic or heterocyclic ring; A1 and A2 are identical or different and are -CN, -NO2 or -COOR8; X is -CH, -CR11 or N; and Y is O, -NH, -NR12, S or Se. The doping agents together luminesce predominately red with very good quantum efficiency together with the luminescent compound as a function of concentration.
Electro-luminescent device, consisting of a hole transport layer and a luminescent layer between two conductive electrodes, whereby at least one electrode is transparent, characterized in that the luminescent layer contains as a luminescent compound or doping agent for a luminescent compound at least one compound of general formula I 25
Compounds of general formula I 30
Dependencies are inferred from the claim text.