| 초록 |
Semiconductor nanocrystal quantum dots represent an important class of chemically processible nanomaterials. Their use in photocatalytic energy conversion and light-emitting applications has garnered attention, as their moderate synthesis temperature and solution-processibility offer opportunities to address constraints on alternative technologies such as scalability. Additionally, by tuning the size, shape, and composition of colloidal nanocrystals, we can exploit quantum confinement effects, e.g., the size-tunable energy gap and discrete energy states. In this presentation, I will discuss new developments that enable (i) spatial separation of electrons and holes in heterostructure semiconductor nanocrystals and (ii) the study of correlation between structures and visible light emission in core/shell quantum dots. For light-emitting devices, we designed CdSe/CdS core/shell quantum dots and examined their electroluminescence properties as a function of core/shell dimensions. |
