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Issue 47, 2019
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Au-covered hollow urchin-like ZnO nanostructures for surface-enhanced Raman scattering sensing

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Abstract

Au-covered hollow urchin-like ZnO nanostructures were prepared with controlled size by combining nanosphere lithography (NSL), atomic layer deposition (ALD), electrodeposition, and electron beam (e-beam) evaporation. The optimal Au film thickness for sensing applications was determined by measuring the surface-enhanced Raman scattering (SERS) intensities of the substrates. Furthermore, the sensing performances of these hybrid nanostructures have been investigated by using chemical and biological molecules: thiophenol and adenine, respectively. Limits of detection (LOD) of 10−8 M and 10−6 M were found for the detection of thiophenol and adenine, respectively. Additionally, the excellent uniformity and batch-to-batch reproducibility of the substrates make them excellent candidates for reliable SERS sensing and biosensing.

Graphical abstract: Au-covered hollow urchin-like ZnO nanostructures for surface-enhanced Raman scattering sensing

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Publication details

The article was received on 30 Oct 2019, accepted on 07 Nov 2019 and first published on 11 Nov 2019


Article type: Paper
DOI: 10.1039/C9TC05929F
J. Mater. Chem. C, 2019,7, 15066-15073

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    Au-covered hollow urchin-like ZnO nanostructures for surface-enhanced Raman scattering sensing

    O. Graniel, I. Iatsunskyi, E. Coy, C. Humbert, G. Barbillon, T. Michel, D. Maurin, S. Balme, P. Miele and M. Bechelany, J. Mater. Chem. C, 2019, 7, 15066
    DOI: 10.1039/C9TC05929F

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