title: Lamellar assembly of cadmium selenide nanoclusters into quantum belts.
abstract: Here, we elucidate a double-lamellar-template pathway for the formation of CdSe quantum belts. The lamellar templates form initially by dissolution of the CdX(2) precursors in the n-octylamine solvent. Exposure of the precursor templates to selenourea at room temperature ultimately affords (CdSe)(13) nanoclusters entrained within the double-lamellar templates. Upon heating, the nanoclusters are transformed to CdSe quantum belts having widths, lengths, and thicknesses that are predetermined by the dimensions within the templates. This template synthesis is responsible for the excellent optical properties exhibited by the quantum belts. We propose that the templated-growth pathway is responsible for the formation of the various flat, colloidal nanocrystals recently discovered, including nanoribbons, nanoplatelets, nanosheets, and nanodisks.
authors: Department of Chemistry and the Center for Materials Innovation, Washington University, St. Louis, Missouri 63130-4899, USA.
authors: Yi-Hsin
authors: YH
authors: Liu
authors: Fudong
authors: F
authors: Wang
authors: Yuanyuan
authors: Y
authors: Wang
authors: Patrick C
authors: PC
authors: Gibbons
authors: William E
authors: WE
authors: Buhro