| 초록 |
We synthesized copolymers which composed of a new low band-gap segment, 4,7-bis(3’,3’-diheptyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole (heptyl4-PTBT), and 2,7-dibromo-9,9’-dioctylfluorene at the various ratios. The comonomer feed ratios of 9,9’-dioctylfluorene to low band gap monomer, heptyl4-PTBT, are 9:1, 7:3, 5:5, and the corresponding copolymers are named as PFO-PTBT(9:1), PFO-PTBT(7:3), PFO-PTBT(5:5), respectively. In this presentation we will report the synthetic routes, optical and electrochemical properties, and photovoltaic performances of these copolymers. |
