| 초록 |
In this study, we demonstrate a unique method to localize well-defined nanostructures in large area using nanoporous templates. As the thin films of Block copolymers (BCPs) are solvent-annealed in toluene vapor. Followed by surface-reconstruction with ethanol, the well-ordered nanoporous template can be produced over the whole surface area. The well-ordered nanopores can play a role as versatile templates to localize uniform spherical QDs during simple spin-coating process. Interestingly, it is found that their population can be precisely controlled by adjusting the concentrations or the size of QDs. The use of this QDs array can be expanded to various potential applications including QD-LED. As the QDs have been selectively arranged in hexagonally packed nanopores. The selective arrangements of QDs are characterized by SEM and AFM. The optical properties of QDs arrays with various diameters are also investigated by UV-Vis spectroscopy. |
