Liquid metal nanodroplet dynamics inside nanocontainers

Hyun Young Jung; Hyunkyung Chun; Sora Park; Seoung Hun Kang; Chi Won Ahn; Young Kyun Kwon; Moneesh Upmanyu; Pulickel M. Ajayan; Yung Joon Jung

doi:10.1038/srep02588

Liquid metal nanodroplet dynamics inside nanocontainers

Hyun Young Jung, Hyunkyung Chun, Sora Park, Seoung Hun Kang, Chi Won Ahn, Young Kyun Kwon, Moneesh Upmanyu, Pulickel M. Ajayan, Yung Joon Jung

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Here we report direct observations of spatial movements of nanodroplets of Pb metal trapped inside sealed carbon nanocontainers. We find drastic changes in the mobility of the liquid droplets as the particle size increases from a few to a few ten nanometers. In open containers the droplet becomes immobile and readily evaporates to the vacuum environment. The particle mobility strongly depends on confinement, particle size, and wetting on the enclosed surface. The collisions between droplets increase mobility but the tendency is reversed if collisions lead to droplet coalescence. The dynamics of confined nanodroplets could provide new insights into the activity of nanostructures in spatially constrained geometries.

Original language	English
Article number	2588
Journal	Scientific Reports
Volume	3
DOIs	https://doi.org/10.1038/srep02588
State	Published - 2013
Externally published	Yes

Funding

Y.J.J. and H.Y.J. acknowledge the financial support from Fundamental R&D Program for Core Technology of Materials in the Ministry of Knowledge Economy (MKE), Republic of Korea, and National Science Foundation-CMMI grant (0927088). C.W.A. acknowledges the financial support from Global Frontier grant/MEST (No. 2012054560) and MKE (No.A004600091), Republic of Korea. Y.K.K., S.P. and S.H.K. gratefully acknowledge the financial support from the National Research Foundation of Korea (Grant Nos. 2011-0002456 and 2012-0005146). Some portion of our computational work was done using the resources of the KISTI Supercomputing Center (KSC-2012-C2-19 and KSC-2012-C2-72). P.M.A. acknowledges the financial support from ARL/ARO (No.W911NF). MU was supported by the National Science Foundation DMR CMMT Program (1106214).

Funders	Funder number
Global Frontier grant
National Science Foundation	1106214, 0927088
Army Research Office
Army Research Laboratory
Ministry of Knowledge Economy
National Research Foundation of Korea	2011-0002456, 2012-0005146
Ministry of Education, Science and Technology	2012054560

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abstract = "Here we report direct observations of spatial movements of nanodroplets of Pb metal trapped inside sealed carbon nanocontainers. We find drastic changes in the mobility of the liquid droplets as the particle size increases from a few to a few ten nanometers. In open containers the droplet becomes immobile and readily evaporates to the vacuum environment. The particle mobility strongly depends on confinement, particle size, and wetting on the enclosed surface. The collisions between droplets increase mobility but the tendency is reversed if collisions lead to droplet coalescence. The dynamics of confined nanodroplets could provide new insights into the activity of nanostructures in spatially constrained geometries.",

author = "Jung, {Hyun Young} and Hyunkyung Chun and Sora Park and Kang, {Seoung Hun} and Ahn, {Chi Won} and Kwon, {Young Kyun} and Moneesh Upmanyu and Ajayan, {Pulickel M.} and Jung, {Yung Joon}",

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AU - Jung, Hyun Young

AU - Chun, Hyunkyung

AU - Park, Sora

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AU - Kwon, Young Kyun

AU - Upmanyu, Moneesh

AU - Ajayan, Pulickel M.

AU - Jung, Yung Joon

PY - 2013

Y1 - 2013

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AB - Here we report direct observations of spatial movements of nanodroplets of Pb metal trapped inside sealed carbon nanocontainers. We find drastic changes in the mobility of the liquid droplets as the particle size increases from a few to a few ten nanometers. In open containers the droplet becomes immobile and readily evaporates to the vacuum environment. The particle mobility strongly depends on confinement, particle size, and wetting on the enclosed surface. The collisions between droplets increase mobility but the tendency is reversed if collisions lead to droplet coalescence. The dynamics of confined nanodroplets could provide new insights into the activity of nanostructures in spatially constrained geometries.

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SN - 2045-2322

VL - 3

JO - Scientific Reports

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M1 - 2588

ER -

Liquid metal nanodroplet dynamics inside nanocontainers

Abstract

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