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Novel nanoscience in superfluid helium droplets: from nanoparticles to nanowires

journal contribution
posted on 05.10.2015, 10:40 by Andrew M. Ellis, Shengfu Yang
Superfluid helium droplets have emerged as a new route for the fabrication of nanomaterials. They are large clusters of helium that allow molecules/atoms to be added and subsequently aggregate, providing a confined environment for growing nanometer-sized entities with exotic properties. For droplets composed of less than 107 helium atoms, small particles with diameters no more than 10 nm can be grown. In larger helium droplets quantized vortices play an important role, leading to the aggregation of dopants along the vortex lines and the formation of one-dimensional nanostructures. Combined with other properties of helium droplets, namely the chemical inertness, the very low temperature and the ultrahigh cooling rate, and the ease by which core-shell structures can be formed, many new types of nanomaterials that are difficult to make with conventional “hot” synthesis methods are now possible. Here we present a review focusing on the fundamental properties of helium droplets and address, in particular, their potential for the fabrication of novel nanomaterials. The latter will be illustrated using selected results, with a bias towards work originating from our laboratory.

History

Citation

Science Letters Journal 2016, 5: 225

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Chemistry

Version

AM (Accepted Manuscript)

Published in

Science Letters Journal 2016

Publisher

Cognizure Corporation

issn

0250-541X

eissn

2250-1754

Acceptance date

31/07/2015

Copyright date

2016

Publisher version

http://www.cognizure.com/scilett.aspx?p=200638838

Notes

The file associated with this record is under permanent embargo, in accordance with the publisher's policy on self-archiving. The full text of this publication may be available in the publisher links above.

Language

en