Patent ID: 7820077
Filing Date: 2010-10-26
Classification: C09K,H01L,H05B,Y02E,Y02P

Abstract:
1. Single-phase, liquid compositions (solutions) comprising at least one organic semiconductor which comprises at least one high-molecular-weight component, and at least one organic solvent A, and at least one organic solvent B, and at least one organic solvent C, wherein the boiling points of all solvents A, B and C are greater than 80° C. and the following applies to the boiling points (b.p.) of solvents A, B and C: b.p.(A)<b.p.(C)<b.p.(B), and/or to the respective partial vapour pressures (p) at the temperature of the coating methods of solvents A, B and C: p(A)>p(C)>p(B) and wherein the organic semiconductor is soluble in the pure solvent A or in the pure solvent B in a concentration of at least 5 g/l at room temperature and the solubility of the organic semiconductor in the pure solvent C at room temperature is less than 0.3 g/l.