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Issue 2, 2013
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Facile synthesis of wurtzite copper–zinc–tin sulfide nanocrystals 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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Publication details

The article was received on 31 Aug 2012, accepted on 11 Oct 2012 and first published on 17 Oct 2012


Article type: Paper
DOI: 10.1039/C2TA00151A
Citation: J. Mater. Chem. A, 2013,1, 337-341
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    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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