Patent ID: 8871847
Filing Date: 2014-10-28
Classification: B82Y,H01L,Y02E,Y02P

Abstract:
1. A composition comprising: a conjugated polymer compound, a fullerene derivative, a first solvent and a second solvent, wherein the first solvent is an aromatic compound having a substituent, has a weight of 70 to 97 with the sum of the weight of the first solvent and the weight of the second solvent being 100, and has a surface tension at 25° C. of greater than 25mN/m, and wherein the second solvent is selected from the group consisting of a linear alkane, a branched alkane, a cycloalkane, a branched alcohol and an alicyclic alcohol and the second solvent has a surface tension at 25° C. of 15 to 25 mN/m.