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Fundamental effects in nanoscale thermocapillary flow

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Title
Fundamental effects in nanoscale thermocapillary flow
Author(s)
Sung Hun Jin; Jizhou Song; Ha Uk Chung; Chenxi Zhang; Simon N. Dunham; Xu Xie; Frank Du; Tae-il Kim; Jong-Ho Lee; Yonggang Huang; John A. Rogers
Publication Date
2014-02
Journal
JOURNAL OF APPLIED PHYSICS, v.115, no.5, pp.054315-1 - 054315-4
Publisher
AMER INST PHYSICS
Abstract
When implemented on the nanoscale, material flows driven by gradients in temperature, sometimes known as thermocapillary flows, can be exploited for various purposes, including nanopatterning, device fabrication, and purification of arrays of single walled carbon nanotubes (SWNTs). Systematic experimental and theoretical studies on thermocapillary flow in thin polymer films driven by heating in individual metallic SWNT over a range of conditions and molecular weights reveal the underlying physics of this process. The findings suggest that the zero-shear viscosity is a critical parameter that dominates the dependence on substrate temperature and heating power. The experimentally validated analytical models in this study allow assessment of sensitivity to other parameters, such as the temperature coefficient of surface tension, the thermal interface conductance, and the characteristic length scale of the heated zone. 2014 AIP Publishing LLC.
URI
http://pr.ibs.re.kr/handle/8788114/1123
DOI
10.1063/1.4864487
ISSN
0021-8979
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > Journal Papers (저널논문)
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