Self-organization-directed Switching of Optical Properties of Gold Nanoclusters

Ligand-protected metal nanoclusters have recently attracted special attention because of unique structural features and properties. Aside from the rigorous advances in the studies at the single-molecule level, the interests in the behaviors of the clusters in condensed states have recently emerged. However, examples of organized cluster assemblies have been so far limited. In this talk, our recent studies on the self-organization of coordinated ultrasmall gold clusters will be offered, in which unique J-aggregate-like behaviors and aggregation-induced-emission (AIE) phenomena in optical response are highlighted.