Patent ID: 8252889

Claim:
An electroluminescent arrangement comprising at least two electrodes, of which optionally at least one is applied to an optionally transparent substrate, at least one emitter layer between the two electrodes and at least one hole-injecting layer between one of the two electrodes and the emitter layer, wherein the hole-injecting layer comprises a formulation comprising A) at least one polythiophene containing recurring units of the formula (I-aa-2) B) at least one polymer containing SO 3 − M + or COO − M + groups, wherein M + represents H + , Li + , Na + , K + , Rb + , Cs + or NH 4 + and C) at least one partly fluorinated or perfluorinated polymer containing SO 3 − M + or COO − M + groups, wherein M + represents H + , Li + , Na + , K + , Rb + , Cs + or NH 4 + .