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Issue 2, 2013
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Facile synthesis of wurtzite copper–zinc–tin sulfidenanocrystals from plasmonic djurleite nuclei

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Abstract

The present research demonstrates a facile one-pot heating process without injection to synthesize an important light harvesting quaternary nanocrystal: wurtzite copper–zinc–tin sulfide (w-CZTS). High quality w-CZTS nanocrystals can be easily obtained by mixing all the precursors and simply heating to the reaction temperature. The nano-crystal formation mechanism is thoroughly investigated and resolved by X-ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS). It starts with the nucleation of plasmonic djurleite Cu1.94S, subsequent growth of CZTS–Cu1.94S heterostructures and inter-diffusion of cations and then finally leads to single phase and single crystal w-CZTS nanocrystals. The mechanism of nanocrystal formation can be applied universally regardless of the type of zinc and tin precursor for high quality w-CZTS nanocrystals. The in-depth interpretations of the reaction mechanism of this process significantly advance the current knowledge of multi-component nanocrystal formation. The developed method is scalable for high throughput and low cost w-CZTS suspensions which await practical photovoltaic applications.

Graphical abstract: Facile synthesis of wurtzite copper–zinc–tin sulfide nanocrystals from plasmonic djurleite nuclei

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Supplementary files

Article information


Submitted
31 Aug 2012
Accepted
11 Oct 2012
First published
17 Oct 2012

J. Mater. Chem. A, 2013,1, 337-341
Article type
Paper

Facile synthesis of wurtzite copper–zinc–tin sulfide nanocrystals from plasmonic djurleite nuclei

H. Liao, M. Jao, J. Shyue, Y. Chen and W. Su, J. Mater. Chem. A, 2013, 1, 337
DOI: 10.1039/C2TA00151A

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