| 초록 |
Recently, polymer solar cells (PSCs) have been the subject of extensive study because of their potential applicability in light weight, flexible, colorful and/or transparent large-area devices. In 2014, the PCEs have been boosted to ~10% for the PSCs with single junction. In early 2014, Yongfang Li et al. first used alkylthio groups and were synthesized low bandgap and two-dimensional (2D)-conjugated copolymers based on benzo[1,2-b:4,5-b']dithiophe ne with conjugated thiophene side chains (BDTT) and thieno[3,4-b]thiophene with electron-withdrawing substituents (TT). In this paper, we will propose the effective and reliable synthetic method for the preparation of PCE-10 with variation of polymerization condition. In conclusion, OPVs based on a mixture of prepared donor polymer and PC70BM as an active layer showed as high as 9% of PCEs reproducibly under the AM 1.5G simulated light illumination. |
