| 초록 |
Fluorescent quantum dots (QDs) has received a lot of attention as promising candidates for white light emitting systems, however, most current systems involve undesired Forster resonance energy transfer (FRET) between QDs. Herein, we developed white light emitting hybrid films with block copolymers (BCPs) and QDs through control of the location of different-colored QDs in BCP domains. A strategy for controlling the location of QDs within BCP domains is to vary the surface coverage of QDs by end-attached polymer ligands. When different-colored QDs were independently incorporated into isolated BCP domains, FRET was completely suppressed because the size of the BCP domain was greater than the Forster radius. Through the isolated BCP domain, ratiometric control of different colored QDs can display a wide range of colors. The spatially controlled, independent light emissions from our hybrid films could be beneficial for use in applications in photonics, optoelectronics, and sensors. |
