Patent ID: 11871648
Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGY
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 1:
2. The method of claim 1, wherein in step (S1), the solution of the active layer is prepared through steps of:
respectively dissolving 40 mg of poly(3-hexylthiophene-2,5-diyl) (P3HT) and 40 mg of [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM) in 1 mL of 1,2-dichlorobenzene (o-DCB) followed by stirring at 60° C. to produce a P3HT solution and a PC70BM solution; and mixing a 0.01 mL of the PC70BM solution and 1 mL of the P3HT solution followed by stirring at 60° C. to obtain the solution of the active layer, wherein a weight ratio of P3HT to PC70BM is 100:1.