We have recently prepared colloidal CdSe quantum belts having remarkable optical properties.  The photoluminescence efficiencies are as high as 40%, which is unprecedented for nanocrystals having an extended length dimension, in this case up to about 1.5 �m.  Optical experiments establish that excitons are delocalized over the entire dimensions of the nanocrystals.  These flat colloidal nanostructures may be prepared under surprisingly mild conditions, even at room temperature, through the intermediacy of discrete nanoclusters such as (CdSe)13.  The synthesis of, reaction pathways to, and properties of these nanoclusters and nanocrystals will be presented.

Semiconductor quantum belts for transporting energy and charge

243rd National Meeting (2012)

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