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“Green” Aqueous Synthesis and Advanced Spectral Characterization of Size-Selected Cu2ZnSnS4 Nanocrystal Inks

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.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:33825
Date26 April 2019
CreatorsStroyuk, Oleksandr, Raevskaya, Alexandra, Selyshchev, Oleksandr, Dzhagan, Volodymyr, Gaponik, Nikolai, Zahn, Dietrich R.T., Eychmüller, Alexander
PublisherMacmillan Publishers Limited
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text
Rightsinfo:eu-repo/semantics/openAccess
Relation10.1038/s41598-018-32004-1, 2045-2322, 13677, 10.1038/s41598-018-32004-1

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