| 摘要 |
<p>A composition which comprises a conjugated polymer, a fullerene derivative, a first solvent, and a second solvent. When the sum of the weight of the first solvent and the weight of the second solvent is taken as 100, the weight of the solvent is 70-97. The first solvent at 25°C has a surface tension exceeding 25 mN/m, and the second solvent at 25°C has a surface tension of 15-25 mN/m.</p> |
