| 초록 |
Here we introduce a novel small molecule based on dithienobenzodithiophene developed to study the effect of the rhodanine substitutuent on small molecule bulk heterojunction (BHJ)solar cells. small molecule possesses crystalline characteristics, sufficient solubility, and broad absorption properties. Therefore, solution-processed BHJ photovoltaic cells blends showed an extremely high power conversion efficiency. Morphological and structural studies revealed that small molecule formed a favorable BHJ morphology. An appropriate domain size of less than 20 nm and bi-continuous interpenetrating paths with an ordered structure obtained as a result of strong intermolecular interactions can support the device performances.This is the reported use in small molecule donor, and the results of these studies indicated that small molecule can be a promising candidate for the photovoltaic applications. |
