| 초록 |
Organic photovoltaic cells (OPVs) have been much developed due to potential as low cost renewable energy using infinite solar energy. Recently, high power conversion efficiencies (＞ 10%) have been reported using polymeric donors and small molecule acceptors but small molecule acceptors need further development. Furthermore, dye units of rhodanine have been much introduced as terminal electron-withdrawing groups onto the electron-rich backbone of fluorene, carbarzole, 4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene, and 6,12-dihydro-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]dithiophene to make high performance small molecule donor and acceptor materials. In this work, we synthesized non-fullerene small molecule acceptors containing dye end groups. The physical, optical, and electrochemical properties of the small molecules were studied herein together with the OPV fabrication. |
