Journal
NANO LETTERS
Volume 14, Issue 5, Pages 2902-2906Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl500946u
Keywords
Helium droplet; vortex; nanoparticle; nanowire; transmission electron microscopy
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Funding
- U. K. Engineering and Physical Science Research Council (EPSRC)
- Leverhulme Trust
- EPSRC [EP/D071402/1, EP/J021342/1, EP/I009213/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I009213/1, EP/D071402/1, EP/J021342/1] Funding Source: researchfish
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Direct preparation of long one-dimensional (1D) nanostructures with diameters <10 nm inside superfluid helium droplets is reported. Unlike conventional chemical synthetic techniques, where stabilizers, templates, or external fields are often required to induce 1D growth, here, we exploit the use of quantized vortices to guide the formation of ultrathin nanowires. A variety of elements have been added to the droplets to demonstrate that this is a general phenomenon, including Ni, Cr, Au, and Si. Control of the length and diameter of the nanowires is also demonstrated.
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