| 초록 |
Organic electronic devices reported were processed by halogenated solvents due to conjugated organic materials’ limited solubility. Organic conducting molecules can never be soluble in ethanol, however, by replacing alkyl side chains into ethyleneglycol side chain, those materials became soluble in eco-friendly solvents. By modifying active layer materials, it was possible to develop eco-friendly OSCs whose the PCEs are over 2%. However, the performance should be further improved for commercialization. Modifying the fullerene structure can be the key solution for improving the performance of eco-friendly OSCs. There are several things which can be improved in previously developed alcohol-soluble fullerenes. Firstly, side chain bulkiness should be reduced as much as possible. Secondly, the C60 backbone have poor visible light absorption. Herein, we reported newly developed two target structures to solve those problems and achieve highly-efficient eco-friendly OSCs. |
