TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Formulation: In the formulation, the formulation comprises a viscosity at 25 degrees C in the range of 0.5-9.5 mPa.s. The formulation is a solution, where the formulation comprises a surface tension in the range of 22-50 mN/m. The organic solvent comprises Hansen Solubility parameters of Hd in the range of 17.0-23.2 MPa0.5, Hp in the range of 0.2-12.5 MPa0.5 and Hh in the range of 0.0-20.0 MPa0.5. The organic solvent comprises one or more of an aromatic and/or heteroaromatic compound, where the organic solvent comprises of one or more aromatic hydrocarbon compound, where the aromatic hydrocarbon compound comprises a cycloalkyl group. The aromatic hydrocarbon compound comprises an alkyl group having 1-8 carbon atoms. The organic solvent or solvent blend is a mixture of hydrocarbon aromatic compounds. The organic solvent comprises a boiling point of at least 130 degrees C. The organic solvent is a mixture of compounds having different boiling points and the boiling point of the compound with the lowest boiling point is at least 10 degrees C or at most 100 degrees C below the boiling point of the compound with the highest boiling point. The formulation comprises at least 80% by weight of the organic solvents, where the solvent comprises a partition ratio log P of at least 1.5. The formulation comprises at least one inert binder, where the inert binder is a polymer comprising repeating units derived from styrene monomers and/or olefins. The inert binder is a polymer comprising at least 80% by weight of repeating units derived from styrene monomers and/or olefins. The inert binder is a polymer having a weight average molecular weight of at least 200000 g/mol. The organic semiconducting compound is an organic light emitting material and/or charge transporting material, where the organic semiconducting compound has a molecular weight of 5000 g/mol or less. The organic semiconducting compound is a compound selected from the following formulas (P1-P7).n=an integer greater than 1, preferably from 10-1000;R=on each occurrence identically or differently denotes H, F, Cl, Br, I, CN, a straight-chain, branched or cyclic alkyl group having 1-40 C atoms, in which one or more C atoms are optionally replaced by O, S, O-CO, CO-O, O-CO-O, CR0=CR0 or C=C such that O- and/or S-atoms are not linked directly to each other, and in which one or more H atoms are optionally replaced by F, Cl, Br, I or CN, or denotes an aryl or heteroaryl group having 4-20 ring atoms that is unsubstituted or substituted by one or more non-aromatic groups Rs, and where one or more groups R may also form a mono- or polycyclic aliphatic or aromatic ring system with one another and/or with the ring to which they are attached;Rs=on each occurrence identically or differently denotes F, Cl, Br, I, CN, Sn(R00)3, Si(R00)3 or B(R00)2 a straight-chain, branched or cyclic alkyl group having 1-25 C atoms, in which one or more C atoms are optionally replaced by O, S, O-CO, CO-O, O-CO-O, CR0=CR0, C=C such that O- and/or S-atoms are not linked directly to each other, and in which one or more H atoms are optionally replaced by F, Cl, Br, I or CN, or Rs denotes an aryl or heteroaryl group having 4-20 ring atoms that is unsubstituted or substituted by one or more non-aromatic groups Rs, and where one or more groups Rs may also form a ring system with one another and/or with R;R0=on each occurrence identically or differently denotes H, F, Cl, CN, alkyl having 1-12 C atoms or aryl or heteroaryl having 4-10 ring atoms;R00=on each occurrence identically or differently denotes H or an aliphatic or aromatic hydrocarbon group having 1-20 C atoms, where two groups R00 may also form a ring together with the hetero atom (Sn, Si or B) to which they are attached;r=0, 1, 2, 3 or 4; ands=0, 1 , 2, 3, 4 or 5.The organic semiconducting compound is a compound represented by formula (M1a).R1, R2, R3, R4, R7, R8, R9, R10, R15, R16, R17=each independently are the same or different and each independently represents: H; an optionally substituted 1-40C carbyl or hydrocarbyl group; an optionally substituted 1-40C alkoxy group; an optionally substituted 6-40C aryloxy group; an optionally substituted 7-40C alkylaryloxy group; an optionally substituted 2-40C alkoxycarbonyl group; an optionally substituted 7-40C aryloxycarbonyl group; a cyano group (-CN); a carbamoyl group (-C(=O)NH2); a haloformyl group (-C(=O)-X, where X represents a halogen atom); a formyl group (-C(=O)-H); an isocyano group; an isocyanate group; a thiocyanate group or a thioisocyanate group; an optionally substituted amino group; a hydroxy group; a nitro group; a CF3 group; a halo group (Cl, Br, F); or an optionally substituted silyl group, and where independently 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 is optionally cross-bridged with each other to form a 4-40C saturated or unsaturated ring, which saturated or unsaturated ring is optionally intervened by an oxygen atom, a sulfur atom or a group of the formula -N(Ra)-, where Ra is a hydrogen atom or a hydrocarbon group, or is optionally substituted; and where one or more of the carbon atoms of the polyacene skeleton is optionally substituted by a hetero atom selected from N, P, As, O, S, Se and Te; andA=silicon or germanium.Also, the organic semiconducting compound is a compound of the formula (M1b1).Y1 and Y2=-CH= or =CH- and the other denotes -X-;Y3 and Y4=-CH= or =CH- and the other denotes -X-;X=-O-, -S-, -Se- or -NR'''-;R' =H, F, Cl, Br, I, CN, straight-chain or branched alkyl or alkoxy that have 1-20 C-atoms and are optionally fluorinated or perfluorinated, optionally fluorinated or perfluorinated aryl having 6-30 C-atoms, or CO2R'''', with R'''' being H, optionally fluorinated alkyl having 1-20 C-atoms or optionally fluorinated aryl having 2-30 C-atoms;R''=in case of multiple occurrence independently of one another, cyclic, straight-chain or branched alkyl or alkoxy that have 1-20, preferably 1-8 C-atoms, or aryl having 2-30 C-atoms, all of which are optionally fluorinated or perfluorinated;R'''=H or cyclic, straight-chain or branched alkyl with 1-10 C- atoms;m=0 or 1; ando=0 or 1.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, where the phosphorescent compounds are compounds of formulas (1)-(4).DCy=identically or differently on each occurrence, a cyclic group which contains at least one donor atom, preferably nitrogen, carbon in the form of a carbene or phosphorus, via which the cyclic group is bonded to the metal, and which may in turn carry one or more substituents R18; the groups DCy and CCy are connected to one another via a covalent bond;CCy=identically or differently on each occurrence, a cyclic group which contains a carbon atom via which the cyclic group is bonded to the metal and which may in turn carry one or more substituents R18;A=identically or differently on each occurrence, a monoanionic, bidentate chelating ligand, preferably a diketonate ligand;R18=identically or differently at each instance, and are F, Cl, Br, I, NO2, CN, a straight-chain, branched or cyclic alkyl or alkoxy group having 1-20 carbon atoms, in which one or more nonadjacent CH2 groups may be replaced by -O-, -S-, -NR19-, -CONR19-, -CO-O-, -C=O-, -CH=CH- or -C=C-, and in which one or more hydrogen atoms may be replaced by F, or an aryl or heteroaryl group which has 4-14 carbon atoms and may be substituted by one or more non-aromatic R18 radicals, and a set of substituents R18, either on the same ring or on the two different rings, may together in turn form a mono- or polycyclic, aliphatic or aromatic ring system; andR19=identically or differently at each instance, and are a straight- chain, branched or cyclic alkyl or alkoxy group having 1-20 carbon atoms, in which one or more nonadjacent CH2 groups may be replaced by -O-, -S-, -CO-O-, -C=O-, -CH=CH- or -C=C-, and in which one or more hydrogen atoms may be replaced by F, or an aryl or heteroaryl group which has 4-14 carbon atoms and may be substituted by one or more non-aromatic R18 radicals.The formulation comprises a host material; and 0.1-5% by weight organic semiconducting compounds. The weight ratio of the semiconducting compound to the inert binder is 5:1-1:1. The formulation comprises at least one wetting agent, where the wetting agent is volatile and is not capable of chemically reacting with the semiconducting compound. Preferred Process: In preparing the OE device, the formulation is applied by gravure printing, doctor blade coating, roller printing, reverse-roller printing, flexographic printing, and web printing. The cell etch of the printing device is in the range of 4-18 cm3/m2. The print speed is 100 m/minute or less. The surface on which the formulation is applied comprises a surface energy in the range of 25-130 mN/m. The evaporation of the solvent is achieved below the boiling point of the solvent. Preferred Device: The OE device is an organic light emitting diode (OLED), an organic field effect transistor (OFET) or an organic photovoltaic (OPV) device. The OE device comprises a top gate design; and a bottom gate design. EXAMPLE - No suitable example given.