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Questioning liquid droplet stability on nanowire tips : from theory to experiment

Ghisalberti, Lea; Potts, Heidi LU ; Friedl, Martin; Zamani, Mahdi; Güniat, Lucas; Tütüncüoglu, Gözde; Carter, W Craig and Morral, Anna Fontcuberta I (2019) In Nanotechnology 30(28). p.285604-285604
Abstract

Liquid droplets sitting on nanowire (NW) tips constitute the starting point of the vapor-liquid-solid method of NW growth. Shape and volume of the droplet have been linked to a variety of growth phenomena ranging from the modification of growth direction, NW orientation, crystal phase, and even polarity. In this work we focus on numerical and theoretical analysis of the stability of liquid droplets on NW tips, explaining the peculiarity of this condition with respect to the wetting of planar surfaces. We highlight the role of droplet pinning at the tip in engineering the contact angle. Experimental results on the characteristics of In droplets of variable volume sitting on the tips or side facets of InAs NWs are also provided. This work... (More)

Liquid droplets sitting on nanowire (NW) tips constitute the starting point of the vapor-liquid-solid method of NW growth. Shape and volume of the droplet have been linked to a variety of growth phenomena ranging from the modification of growth direction, NW orientation, crystal phase, and even polarity. In this work we focus on numerical and theoretical analysis of the stability of liquid droplets on NW tips, explaining the peculiarity of this condition with respect to the wetting of planar surfaces. We highlight the role of droplet pinning at the tip in engineering the contact angle. Experimental results on the characteristics of In droplets of variable volume sitting on the tips or side facets of InAs NWs are also provided. This work contributes to the fundamental understanding of the nature of droplets contact angle at the tip of NWs and to the improvement of the engineering of such nanostructures.

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author
publishing date
type
Contribution to journal
publication status
published
in
Nanotechnology
volume
30
issue
28
pages
285604 - 285604
publisher
IOP Publishing
external identifiers
  • scopus:85065344257
ISSN
0957-4484
DOI
10.1088/1361-6528/ab139c
language
English
LU publication?
no
id
199b47c1-4cd4-45aa-a7eb-c20fb98653b3
date added to LUP
2019-05-15 09:49:09
date last changed
2019-08-18 04:58:20
@article{199b47c1-4cd4-45aa-a7eb-c20fb98653b3,
  abstract     = {<p>Liquid droplets sitting on nanowire (NW) tips constitute the starting point of the vapor-liquid-solid method of NW growth. Shape and volume of the droplet have been linked to a variety of growth phenomena ranging from the modification of growth direction, NW orientation, crystal phase, and even polarity. In this work we focus on numerical and theoretical analysis of the stability of liquid droplets on NW tips, explaining the peculiarity of this condition with respect to the wetting of planar surfaces. We highlight the role of droplet pinning at the tip in engineering the contact angle. Experimental results on the characteristics of In droplets of variable volume sitting on the tips or side facets of InAs NWs are also provided. This work contributes to the fundamental understanding of the nature of droplets contact angle at the tip of NWs and to the improvement of the engineering of such nanostructures.</p>},
  author       = {Ghisalberti, Lea and Potts, Heidi and Friedl, Martin and Zamani, Mahdi and Güniat, Lucas and Tütüncüoglu, Gözde and Carter, W Craig and Morral, Anna Fontcuberta I},
  issn         = {0957-4484},
  language     = {eng},
  month        = {07},
  number       = {28},
  pages        = {285604--285604},
  publisher    = {IOP Publishing},
  series       = {Nanotechnology},
  title        = {Questioning liquid droplet stability on nanowire tips : from theory to experiment},
  url          = {http://dx.doi.org/10.1088/1361-6528/ab139c},
  volume       = {30},
  year         = {2019},
}