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Issue 13, 2018
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A highly sensitive and stable SERS substrate using hybrid tungsten dioxide/carbon ultrathin nanowire beams

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Abstract

Compared to noble metals, semiconductor surface enhanced Raman spectrum (SERS) substrates are much cheaper, but their poor sensitivity and stability limits their applications. Here, we report a remarkable enhancement of Raman signals observed from hybrid WO2/C ultrathin nanowire beams. An outstanding enhancement factor (EF) of 1.3 × 106 is achieved, and the lowest detection limit is up to 10−8 M. More importantly, the new SERS active substrate shows ultrahigh chemical, thermal, and light stabilities. An electromagnetic enhancement model and an interfacial charge transfer model coexist in the new SERS substrate.

Graphical abstract: A highly sensitive and stable SERS substrate using hybrid tungsten dioxide/carbon ultrathin nanowire beams

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Publication details

The article was received on 02 Feb 2018, accepted on 06 Mar 2018 and first published on 08 Mar 2018


Article type: Communication
DOI: 10.1039/C8TC00573G
Citation: J. Mater. Chem. C, 2018,6, 3200-3205
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    A highly sensitive and stable SERS substrate using hybrid tungsten dioxide/carbon ultrathin nanowire beams

    C. He, H. Bai, W. Yi, J. Liu, X. Li, X. Li and G. Xi, J. Mater. Chem. C, 2018, 6, 3200
    DOI: 10.1039/C8TC00573G

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