4.7 Article

Size control and quantum confinement in Cu2ZnSnS4 nanocrystals

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 42, Pages 11721-11723

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cc14687d

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Funding

  1. National Science Foundation [DMR-0819885]

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Starting with metal dithiocarbamate complexes, we synthesize colloidal Cu2ZnSnS4 (CZTS) nanocrystals with diameters ranging from 2 to 7 nm. Structural and Raman scattering data confirm that CZTS is obtained rather than other possible material phases. The optical absorption spectra of nanocrystals with diameters less than 3 nm show a shift to higher energy due to quantum confinement.

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