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.

Details

Title
“Green” Aqueous Synthesis and Advanced Spectral Characterization of Size-Selected Cu2ZnSnS4 Nanocrystal Inks
Author
Stroyuk, Oleksandr 1   VIAFID ORCID Logo  ; Raevskaya, Alexandra 1 ; Selyshchev, Oleksandr 2 ; Dzhagan, Volodymyr 3 ; Gaponik, Nikolai 4 ; Zahn, Dietrich R T 2   VIAFID ORCID Logo  ; Eychmüller, Alexander 4 

1  Physical Chemistry, TU Dresden, Dresden, Germany; L.V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine 
2  Semiconductor Physics, Chemnitz University of Technology, Chemnitz, Germany 
3  V. E. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine 
4  Physical Chemistry, TU Dresden, Dresden, Germany 
Pages
1-10
Publication year
2018
Publication date
Sep 2018
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-018-32004-1
ProQuest document ID
2102898538
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.