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One-step fabrication of crystalline metal nanostructures by direct nanoimprinting below melting temperatures

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  • Ze Liu

    (School of Civil Engineering, Wuhan University)

Abstract

Controlled fabrication of metallic nanostructures plays a central role in much of modern science and technology, because changing the dimensions of a nanocrystal enables tailoring of its mechanical, electronic, optical, catalytic and antibacterial properties. Here we show direct superplastic nanoimprinting (SPNI) of crystalline metals well below their melting temperatures, generating ordered nanowire arrays with aspect ratios up to ∼2,000 and imprinting features as small as 8 nm. Surface-enhanced Raman scattering (SERS) spectra reveal strongly enhanced electromagnetic signals from the prepared nanorod arrays with sizes up to ∼100 nm, which indicates that our technique can provide an ideal way to fabricate robust SERS substrates. SPNI, as a one-step, controlled and reproducible nanofabrication method, could facilitate the applications of metal nanostructures in bio-sensing, diagnostic imaging, catalysis, food industry and environmental conservation.

Suggested Citation

  • Ze Liu, 2017. "One-step fabrication of crystalline metal nanostructures by direct nanoimprinting below melting temperatures," Nature Communications, Nature, vol. 8(1), pages 1-7, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14910
    DOI: 10.1038/ncomms14910
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    Cited by:

    1. Jun-Xiang Xiang & Ze Liu, 2022. "Observation of enhanced nanoscale creep flow of crystalline metals enabled by controlling surface wettability," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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