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- Title
“Green” Aqueous Synthesis and Advanced Spectral Characterization of Size-Selected Cu<sub>2</sub>ZnSnS<sub>4</sub> Nanocrystal Inks.
- Authors
Stroyuk, Oleksandr; Raevskaya, Alexandra; Selyshchev, Oleksandr; Dzhagan, Volodymyr; Gaponik, Nikolai; Zahn, Dietrich R. T.; Eychmüller, Alexander
- Abstract
Structure, composition, and optical properties of colloidal mercaptoacetate-stabilized Cu2ZnSnS4 (CZTS) nanocrystal inks produced by a “green” method directly in aqueous solutions were characterized. A size-selective precipitation procedure using 2-propanol as a non-solvent allows separating a series of fractions of CZTS nanocrystals with an average size (bandgap) varying from 3 nm (1.72 eV) to 2 nm (2.04 eV). The size-selected CZTS nanocrystals revealed also phonon confinement, with the main phonon mode frequency varying by about 4 cm−1 between 2 nm and 3 nm NCs.
- Publication
Scientific Reports, 2018, Vol 8, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-018-32004-1