| 초록 |
Organic Solar Cells (OSCs) consisting of electron donating and accepting organic nanoblends have begun to demonstrate their potentials as a route to low cost fabrication. Albeit the significant improvement, OSCs still show low efficiency compared with inorganic counterparts due to their short exciton diffusion length. Recently, there has been many progresses in employing quantum dots for photovoltaics. Quantum dots have unique properties such as high dielectric constant, and tunable bandgap, which have unique features to enhance the performance. Herein, we present a novel approach to construct hybrid solar cells by incorporating quantum dots into the interfaces between donor and acceptor materials. The system in our study consists of poly(3-hexylthiophene), [6,6]-phenyl C61-butyric acid methyl ester, and CdSe quantum dots. Transient Absorption Spectroscopy was used to investigate the effect of the presence of quantum dots on charge dynamics in addition to morphological examination. |
