Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10853
Title: Facile hydrothermal synthesis of hydrotropic Cu2ZnSnS4 nanocrystal quantum dots : band-gap engineering and phonon confinement effect
Authors: Liu, WC
Guo, BL
Wu, XS
Zhang, FM
Mak, CL 
Wong, KH
Issue Date: 2013
Publisher: Royal Society of Chemistry
Source: Journal of materials chemistry A, 2013, v. 1, no. 9, p. 3182-3186 How to cite?
Journal: Journal of materials chemistry A 
Abstract: We developed a facile hydrothermal method for synthesizing ultrafine size-controllable earth-abundant Cu2ZnSnS4 (CZTS) nanocrystals using simple Cu(II), Zn(II) and Sn(II) inorganic salts and thiourea in a mixed ethylenediamine and di-water solution as precursors. X-ray diffraction, Raman scattering and transmission electron microscopy confirm that pure kesterite structure CZTS nanocrystals have been synthesized at temperatures as low as 180 degrees C. Broadening of Raman peaks and blue-shift of the absorption edge is attributed to quantum confinement within the nanocrystals. The hydrophilism and tunable band-gap of the CZTS nanocrystals show the potential applications of the nanocrystals for biological labelling and quantum dot based solar cells.
URI: http://hdl.handle.net/10397/10853
ISSN: 2050-7488
EISSN: 2050-7496
DOI: 10.1039/c3ta00357d
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