초록 |
Nanoparticles of different metals, semiconductors and magnetic materials can self-assemble from colloidal solutions into long range ordered periodic structures (superlattices). Colloidal nanocrystals are considered promising building blocks for electronic and optoelectronic devices. Potentially, they can combine the advantages of crystalline inorganic semiconductors with size-tunable electronic structure and inexpensive solution-based device fabrication. However, the insulating nature of the surface ligands used for nanocrystal synthesis typically results in the poor electronic coupling between individual nanocrystals. In an attempt to address this fundamental problem, we demonstrated that molecular metal chalcogenide complexes can serve as versatile ligands for a broad range of inorganic nanomaterials. This new class of nanocrystal colloids provides a set of advantages such as all-inorganic design and diverse compositional tunability for both nanocrystal and ligand constituents. |