Mixtures for producing photoactive layers for organic solar cells and organic photodetectors

A mixture comprising a component K1 and a component K2;

• wherein K1 is of any of general formulae:
• K1 is an electron donor or electron acceptor;
• each A is independently a bridge consisting of two or three sp3-hybridized carbon atoms, in which each carbon atom is optionally substituted by one R101 substituent each, and in which each carbon atom is optionally benzofused;
• each B and C is independently a bridge consisting of two or three carbon atoms, each of which is sp2- or sp3-hybridized, and each of which is optionally substituted by one R101 substituent;
• each W is independently O, S, N—CN, N—R110, C(CN)2, C(CO2R110)2, C(CN)COR110, C(CN)CO2R110, or C(CN)CONR110;
• each L is independently a divalent carbocycle or heterocycle, which is optionally singly or multiply fused;
• each n is independently 0 or 1;
• each X100 is independently CH, N, or C(CN);
• each X200 is independently C(R111)2, O, S, SO2, or NR110;
• each X201 is independently CR111 or an sp2-hybridized unsubstituted carbon atom bonded to an sp2-hybridized carbon atom of B or C;
• each R100 is independently H, alkyl, C1-C6-alkylene-COO-alkyl, C1-C6-alkylene-β-CO-alkyl, C1-C6-alkylene-O—CO—O-alkyl, cycloalkyl, arylalkyl, aryl, OR110, SR110, hetaryl, halogen, NO2, or CN;
• each R101 is independently alkyl, C1-C6-alkylene-COO-alkyl, C1-I-C6-alkylene-O—CO-alkyl, C1-C6-alkylene-O—CO—O-alkyl, cycloalkyl, arylalkyl, aryl, or hetaryl;
• each R110 is independently H, alkyl, C1-C6-alkylene-COO-alkyl, C1-C6-alkylene-O—CO-alkyl, C1-C6-alkylene-O—CO—O-alkyl, cycloalkyl, arylalkyl, or aryl;
• each R111 is independently H, alkyl, C1-C6-alkylene-COO-alkyl, C1-C6-alkylene-O—CO-alkyl, C1-C6-alkylene-O—CO—O-alkyl, cycloalkyl, arylalkyl, aryl, or hetaryl;
• each carbon chain of an alkyl or cycloalkyl radical in K1 independently is optionally interrupted by one or two nonadjacent oxygen atoms;
• component K2 comprises at least one compound selected from the group consisting of a fullerene, a polycyclic aromatic hydrocarbon, a quinone, a quinodimethane, a quinonediimine, a phthalocyanine, a subphthalocyanine, a porphyrin, a tetraazaporphyrin, a tetrabenzoporphyrin, athiophene, an oligothiophene, a fused thiophene, a thiadiazole, a carbazole, a triarylamine, an indanthrone, a violanthrone, a flavanthones, a fulvalene, a tetrathiafulvalene, a tetraselenafulvalene, a diketopyrrolopyrrole, and a derivative thereof;
• and
• component K2 is a compound capable of acting as an electron acceptor or electron donor correspondingly with respect to component K1.