Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9712
Title: A facile arrested precipitation method for synthesis of pure wurtzite Cu 2ZnSnS 4 nanocrystals using thiourea as a sulfur source
Authors: Li, C
Ha, E
Wong, WL
Li, C
Ho, KP
Wong, KY 
Keywords: Semiconductors
Chemical synthesis
Electron microscopy
Impedance spectroscopy
X-ray diffraction
Issue Date: 2012
Source: Materials research bulletin, 2012, v. 47, no. 11, p. 3201-3205 How to cite?
Journal: Materials Research Bulletin 
Abstract: A facile route for the synthesis of wurtzite Cu 2ZnSnS 4 (CZTS) nanocrystals was developed by an arrested precipitation method at 240 °C under simple reaction conditions with diethanolamine as the solvent and thiourea as sulfur source. The structure and morphology of the CZTS nanocrystals were characterized by X-ray diffraction and transmission electron microscopy. Control experiments demonstrated that CZTS nanocrystals which are purely wurtzite structure are readily obtained. The average diameter of the bulk CZTS products is found to be 10 ± 1.1 nm. The estimated direct bandgap energy is 1.56 eV, which indicates that the CZTS nanocrystals produced by this method possess promising applications in photovoltaic devices.
URI: http://hdl.handle.net/10397/9712
ISSN: 0025-5408
DOI: 10.1016/j.materresbull.2012.08.014
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