| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify a manufacturing process for a polymer solar cell and elevate a photoelectric conversion efficiency of the polymer solar cell. <P>SOLUTION: An organic active layer material solution includes an organic active layer material, a first organic solvent, and a second organic solvent of a higher boiling point. The boiling point of the first organic solvent is 50-200°C, and the boiling point of the second organic solvent is 150-300°C. The second organic solvent is added to the first organic solvent to dissolve the organic active layer material. Since the boiling point of the second organic solvent is high (a volatile speed is slow) and thereby the volatile speed of the organic active layer solution decreases, it is unnecessary to keep an atmosphere of a solution annealing in a highly saturated vapor pressure atmosphere or in a closed atmosphere, then the manufacturing process for a polymer solar cell is simplified, and the photoelectric conversion efficiency of a polymer solar cell is improved. <P>COPYRIGHT: (C)2009,JPO&INPIT |
