Enhanced effect of negative differential thermal resistance in nanoscale confined structure with nanopatterned surfaces

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Authors
Li, Fan
Wang, Jun
Xia, Guodong
Advisors
Issue Date
2020-01-09
Type
Article
Keywords
Fluid structure interaction , Molecular dynamics
Research Projects
Organizational Units
Journal Issue
Citation
Li, Fan; Wang, Jun; Xia, Guodong. 2020. Enhanced effect of negative differential thermal resistance in nanoscale confined structure with nanopatterned surfaces. Journal of Physical Chemistry C, vol. 124:no. 1:pp 92-98
Abstract

A nanoscale confined fluid structure with nanopatterned surface has been investigated by using nonequilibrium molecular dynamics simulations and kinetic theory. The negative differential thermal resistance (NDTR) effect has been observed in such a nanoscale solid-fluid-solid sandwiched structure, but for high fluid density, the NDTR effect is weak or even disappears. In the present paper, it is shown that the NDTR effect can be enhanced or reproduced in the range of T > 150 K roughly by introducing a nanopatterned structure to the cold surface owing to the enhanced molecule adsorption in the nanocavities. The findings in the present paper pave the way for the application of NDTR in the design of a thermal device.

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Publisher
American Chemical Society
Journal
Book Title
Series
Journal of Physical Chemistry C;v.124:no.1
PubMed ID
DOI
ISSN
1932-7447
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