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Synthesis and Characterization of Mixed Phase Cu 2 ZnSnS 4 Nanomaterial by Low Cost Method
Author(s) -
Agarwal Garima,
Jha Prafulla K.
Publication year - 2017
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201700053
Subject(s) - czts , kesterite , wurtzite crystal structure , materials science , nanocrystal , copper , nanomaterials , zinc , band gap , nanoparticle , phase (matter) , chemical engineering , nanotechnology , optoelectronics , metallurgy , chemistry , organic chemistry , engineering
The present study reports the synthesis of colloidal Cu 2 ZnSnS 4 (CZTS) nano materials (average size ∼9 nm) by a simple and low cost hot‐injection method. The zinc and copper rich CZTS also prepared be the same method. The effect of copper and zinc on the structural, compositional, morphological, and optical properties was studied. Measurements shows that all the prepared samples are comprised of both kesterite and wurtzite CZTS nanocrystals. The absorption spectra indicate that the CZTS nanocrystal has an optical band gap of ca. 2.25 eV which goes to decrease to 1.94 eV for CZ‐Cu and 1.34 eV for CZ‐Zn nanocrystals.