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Issue 42, 2016
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Room-temperature fabrication of Cu nanobrushes as an effective surface-enhanced Raman scattering substrate

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Abstract

A facile route to manufacture an active surface-enhanced Raman-scattering (SERS) substrate based on brush-like Cu nanostructures directly grown on a Cu foil at 23 °C was systematically investigated. A hierarchical Cu nanobrush substrate was fabricated in two cycles of electro-oxidation and chemical reduction in sequence; Cu(OH)2 nanowires (NW) were formed on electro-oxidation, and converted on chemical reduction to Cu NW. Two cycles of this process achieved a brush-like Cu nanostructure; its structure, morphology and composition were examined by XRD, SEM, HRTEM and XPS, respectively. With 4-mercaptobenzoic acid (4-MBA) and chlorothalonil as probe molecules, the SERS experiments showed that the brush-like Cu nanostructures exhibit excellent detection performance, which could serve as effective SERS substrates for ultrasensitive detection. This novel hierarchical SERS substrate shows satisfactory reproducibility and a linear dependence between the analyte concentration and intensity, revealing the advantage of this method for easily scaled production.

Graphical abstract: Room-temperature fabrication of Cu nanobrushes as an effective surface-enhanced Raman scattering substrate

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Publication details

The article was received on 25 Aug 2016, accepted on 23 Sep 2016 and first published on 26 Sep 2016


Article type: Paper
DOI: 10.1039/C6CE01862A
Citation: CrystEngComm, 2016,18, 8284-8290
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    Room-temperature fabrication of Cu nanobrushes as an effective surface-enhanced Raman scattering substrate

    Y. Hsu, Z. Chen, Y. Lin, Y. Chen, S. Chen and Y. Lin, CrystEngComm, 2016, 18, 8284
    DOI: 10.1039/C6CE01862A

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