TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The wetting agent is a non-aromatic compound and/or non-ionic compound, preferably methyl siloxanes, 7-14C alkanes, 7-14C alkenes, 7-14C alkynes, 7-14C alcohols, 7-14C fluoro ethers, 7-14C fluoro esters or 7-14C fluoro ketones. The organic solvent is an aromatic compound, preferably aromatic hydrocarbons, anisole, alkylanisole, naphthalene derivatives, alkyl naphthalenes, dihydronaphthalene derivatives, tetrahydronaphthalene derivatives, aromatic esters, aromatic ketones, alkylketones, heteroaromatic solvents, haloaryls and/or aniline derivatives. The organic semiconducting compound: is an organic light emitting material and/or charge transporting material; and has a molecular weight of greater than or equal to 2000 g/mol. The organic semiconducting compound: comprises at least one repeating unit including substituted thiophene compounds of formula (a), substituted 2-(2,2')bithiophenyl-5-yl-thieno(3,2-b)thiophene compounds of formula (b) or (c), substituted 2-(2,2')bithiophenyl-5-yl-thieno(2,3-b)thiophene compounds of formula (d) or (e), substituted 2-phenanthren-2-yl-6,12-dihydro-indeno(1,2-b)fluorene compounds of formula (e), or substituted (4-(6,12-dihydro-indeno(1,2-b)fluoren-2-yl)-phenyl)-diphenyl-amine compounds of formula (g); or is substituted 6,13-diethynyl-pentacene compounds of formula (I) or substituted silylethynylated heteroacene compounds of formula (II). The organic semiconducting compound is an organic phosphorescent compound which emits light and in addition contains at least one atom having an atomic number greater than 38. The phosphorescent compounds include iridium complexes of formula (III) or (IV), or platinum complexes of (V) or (VI).n = greater than 1, preferably 10-1000;R = H, halo, CN, straight-chain, branched or cyclic 1-40C alkyl (at least one C-atom is optionally replaced with O, S, O-CO, CO-O, O-CO-O, CR1a=CR1a or CC such that O- and/or S-atoms are not linked directly to each other, and optionally substituted with halo or CN), aryl having 4-20 ring atoms or heteroaryl having 4-20 ring atoms (both optionally substituted with at least one non-aromatic group R1b, where at least one R optionally forms a mono- or polycyclic aliphatic or aromatic ring system with one another and/or with the ring to which they are attached);R1b = halo, CN, Sn(R2a)3, Si(R2a)3, B(R2a)2, straight-chain, branched or cyclic 1-25C alkyl (at least one C atom is optionally replaced by O, S, O-CO, CO-O, O-CO-O, CR1a=CR1a, CC such that O- and/or S-atoms are not linked directly to each other, and optionally substituted with halo, or CN), aryl having 4-20 ring atoms, or heteroaryl having 4-20 ring atoms (both optionally substituted with at least one non-aromatic group R1b, where at least one R1b optionally forms a ring system with one another and/or with R);R1a = H, F, Cl, CN, 1-12C alkyl, 4-10C aryl or 4-10C heteroaryl;R2a = H, or aliphatic or aromatic 1-20C hydrocarbyl (where two R2a optionally forms a ring together with the hetero atom (Sn, Si or B) to which they are attached);r = 0-4;s = 0-5;R1-R4, R7-R10, and R15-R17 = H, 1-40C carbyl, 1-40C hydrocarbyl, 1-40C alkoxy, 6-40C aryloxy, 7-40C alkylaryloxy, 2-40C alkoxycarbonyl, 7-40C aryloxycarbonyl, silyl or NH2 (all optionally substituted), CN, -C(=O)NH2, haloformyl moiety of formula (-C(=O)-X), formyl, isocyano, isocyanate, thiocyanate, thioisocyanate, OH, NO2, CF3 or halo (Cl, Br or F);A = Si or Ge;each pair of R1 and R2, R2 and R3, R3 and R4, R7 and R8, R8 and R9, R9 and R10, R15 and R16, and R16 and R17 = 4-40C saturated or unsaturated ring (optionally intervened by O, S or -N(R3a)-);R3a = H or hydrocarbyl (optionally substituted) (where at least one C-atom of the polyacene skeleton is optionally substituted by heteroatom including N, P, As, O, S, Se or Te);X = halo;one of Y1 and Y2 = (-CH=) or (=CH-); andother of Y1 and Y2 = -X1-;one of Y3 and Y4 = (-CH=) or (=CH-); andother of Y3 and Y4 = -X1-;X1 = -O-, -S-, -Se- or -NR7a-;R6a = straight-chain or branched 1-20C alkyl, straight-chain or branched 1-20C alkoxy (both optionally fluorinated or perfluorinated), 6-30C aryl (optionally fluorinated or perfluorinated), CO2R8a, H, halo, or CN;R8a = 1-20C alkyl, 2-30C aryl (both optionally fluorinated) or H;R5a = cyclic, straight-chain or branched 1-20C (preferably 1-8C) alkyl or cyclic, straight-chain or branched 1-20C (preferably 1-8C) alkoxy, or 2-30C aryl (all optionally fluorinated or perfluorinated);R7a = H, or cyclic, straight-chain or branched 1-10C alkyl;m, o = 0 or 1;D1 = cyclic group containing at least one donor atom, preferably N, carbon in the form of carbene or phosphorus, via which the cyclic group is bonded to the metal, and which optionally carry at least one substituent R18;D2 = cyclic group containing C-atom via which the cyclic group is bonded to the metal and which optionally carry at least one substituent R18;A1 = monoanionic, bidentate chelating ligand, preferably diketonate ligand; eitherR18 = straight-chain, branched or cyclic 1-20C alkyl or straight-chain, branched or cyclic 1-20C alkoxy (in both, at least one non-adjacent CH2 are optionally replaced by -O-, -S-, -NR19-, -CONR19-, -CO-O-, -C=O-, -CH=CH- or -CC-, and optionally substituted by F), 4-14C aryl or 4-14C heteroaryl (both optionally substituted by at least one non-aromatic R18), halo, NO2 or CN; ormany R18 = mono- or polycyclic aliphatic or aromatic ring; andR19 = straight-chain, branched or cyclic 1-20C alkyl or straight-chain, branched or cyclic 1-20C alkoxy (in both, at least one non-adjacent CH2 is optionally replaced by -O-, -S-, -CO-O-, -C=O-, -CH=CH- or -CC-, and optionally substituted by F), 4-14C aryl, or 4-14C heteroaryl (both optionally substituted by at least one non-aromatic R18).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The composition comprises at least one inert polymeric binder. EXAMPLE - 2,8-Difluoro-11-triethylsilanylethynyl-5-tripropylsilanylethynyl-1,9-dithia-dicyclopenta(b,i)anthracene and 2,8-difluoro-5-triethylsilanylethynyl-11-tripropylsilanylethynyl-1,7-dithia-dicyclopenta(b,i)anthracene mixture (1.6 parts) and 72000 Mw poly-4-methylstyrene (0.4 parts) were dissolved in tetralin (97 parts) and dodecamethyl pentasiloxane (1 part). The resultant reaction solution was filtered through 0.45 mu m polytetrafluoroethylene cartridge filter to obtain the composition.