| 초록 |
Quantum dots (QDs) exhibit narrow emission and high quantum yield (QY), and have thus been considered an ideal fluorophore for high color-resolution display devices. In fact, the recent commercialization of QD was possible because barrier films protect QD/polymer film from oxygen and water. One obvious problem is that the barrier films are relatively expensive; therefore, the commercially available QD-based products can lose edge from the price perspective. In the study, QD/siloxane film that exhibits no degradation under heat or moisture has been developed. Siloxane encapsulation is a key to the ultrastable composite; bonding forms between the ligands on QD surface and heat-resistive siloxane matrix. Unlike previously available approaches, the QD/siloxane composite is based on chemical and robust bonding between QDs and siloxane matrix, making siloxane passivation layer intact on the surface after QDs are exposed to harsh conditions. |
