| 초록 |
Bulk heterojunction polymer solar cells (PSCs) consisting of polymer;fullerene blends have been reported to exhibit high efficiencies of greater than over 11%. If the consideration of stability, cost and efficiency for commercialization of PSC, introduction of non-fullerene derivatives make them a compelling choice for high-performance PSC compared to devices using fullerenes. The molecular structure design of polymer based on non-fullerene derivatives that forms an compensating light absorption ranges and well matched energy levels is an important to obtain high-performance PSCs. In the study, the relationship between molecular structure and photovoltaic properties of organic materials for efficient PSC devices will be presented. Furthermore, the latest progresses of electron donors and acceptors, especially for conjugated polymers and non-fullerene derivatives, will be introduced. |
