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Issue 2, 2012
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Probing the chemical and electronic properties of the core–shell architecture of transition metal trisulfide nanoribbons

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Abstract

Ultraviolet and X-ray photoelectron spectroscopies are used to probe the chemical and electronic structure of an amorphous, 2–20 nm-thick shell that encases the crystalline core in core–shell nanoribbons of TaS3. The shell is chemically heterogeneous, containing elemental sulfur and a with a notable (S2)2 deficiency over the crystalline TaS3 core. We find nanoribbon stability to be substrate-dependent; whilst the ribbons are stable on the native oxide of a silicon surface, mass transport of sulfur species between the amorphous shell and a gold substrate leads to a significant change in the electronic properties of the nanomaterials. Our observations may have general implications for the incorporation of nanostructured transition metal chalcogenides into electronic devices.

Graphical abstract: Probing the chemical and electronic properties of the core–shell architecture of transition metal trisulfide nanoribbons

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Publication details

The article was received on 17 Oct 2011, accepted on 13 Nov 2011 and first published on 06 Dec 2011


Article type: Paper
DOI: 10.1039/C1NR11522G
Citation: Nanoscale, 2012,4, 607-612
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    Probing the chemical and electronic properties of the core–shell architecture of transition metal trisulfide nanoribbons

    M. O. King, M. Popland, S. J. Denholme, D. H. Gregory, D. A. MacLaren and M. Kadodwala, Nanoscale, 2012, 4, 607
    DOI: 10.1039/C1NR11522G

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