Patent ID: 8173276
Filing Date: 2012-05-08
Classification: C08G,C08L,C09B,C09K,H01L,H05B,Y02E

Abstract:
1. An organic semiconductor comprising (A) at least one non-conjugated polymer, (B) at least one structural unit L=X, where the following applies to the symbols used: L is on each occurrence, identically or differently, (R X is on each occurrence, identically or differently, O, S, Se or N—R R R R R (C) at least one triplet emitter; with the proviso that mixtures of two polymers in which the first polymer contains covalently bonded triplet emitters and the other is a copolymer comprising TPD units and diphenyl sulfone ether or diphenyl ketone ether units are excluded; and furthermore with the proviso that polymers containing on the one hand covalently bonded triplet emitters and on the other hand units of the formula (a) are excluded from the invention: in which Ar 1 and Ar 2 each independently denote a tetravalent aromatic hydrocarbon group or a tetravalent heterocyclic group; one of the units X M denotes a group which is represented by formula (b), formula (c) or formula (d) in which Y 1 and Y 2 each independently denote O, S, C(═O), S(═O), SO 2 , C(R 9 )(R 10 ), Si(R 11 )(R 12 ), N(R 13 ), B(R 14 ), P(R 15 ) or P(═O)(R 16 ), where the radicals R where Y in which Y 3 and Y 4 each independently denote N, B, P, C(R 17 ) or Si(R 18 ); the radicals R in which Y 5 denotes O, S, C(═O), S(═O), SO 2 , C(R 19 )(R 20 ), Si(R 21 )(R 22 ), N(R 23 ), B(R 24 ), P(R 25 ) or P(═O)(R); where the radicals R Z