Size Control and Quantum Confinement in Cu2ZnSnS4 Nanocrystals

ArticleinChemical Communications 47(42):11721-3 · September 2011with12 Reads
Impact Factor: 6.83 · DOI: 10.1039/c1cc14687d · Source: PubMed

    Abstract

    Starting with metal dithiocarbamate complexes, we synthesize colloidal Cu(2)ZnSnS(4) (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.