Size control and quantum confinement in Cu2ZnSnS4 nanocrystals

Ankur Khare, Andrew W. Wills, Lauren M. Ammerman, David J. Norris, Eray S. Aydil

Research output: Contribution to journalArticlepeer-review

179 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)11721-11723
Number of pages3
JournalChemical Communications
Volume47
Issue number42
DOIs
StatePublished - Nov 14 2011

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