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Influence of gas rarefaction on the lateral resolution achievable by thermocapillary patterning

Liu, Nan and Troian, Sandra M. (2011) Influence of gas rarefaction on the lateral resolution achievable by thermocapillary patterning. Applied Physics Letters, 98 (6). Art. No. 063107. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:20110317-130412494

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Abstract

Molten polymer nanofilms subject to a large transverse thermal gradient can undergo a thermocapillary instability leading to the growth of nanopillar arrays on the cooler side. The array pitch can be estimated from the fastest growing wavelength from linear stability analysis. Here we quantify the influence of gas rarefaction on thermal conduction for cases in which the gas layer thickness above the film approaches dimensions of the molecular mean free path. For experimentally relevant parameters, rarefaction increases the pitch by as much as 65%, an important consideration for noncontact three-dimensional structure formation by thermocapillary lithography.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3551535 DOIUNSPECIFIED
http://apl.aip.org/resource/1/applab/v98/i6/p063107_s1PublisherUNSPECIFIED
Additional Information:© 2011 American Institute of Physics. Received 24 September 2010; accepted 13 January 2011; published online 8 February 2011. SMT gratefully acknowledges financial support from the National Science Foundation through Grant Nos. CTS 0649474 and CBET 0701324.
Group:GALCIT
Funders:
Funding AgencyGrant Number
NSFCTS-0649474
NSFCBET 0701324
Classification Code:PACS: 47.85.md; 47.57.Ng; 47.55.nb; 47.50.Gj; 47.45.Dt; 81.16.Rf
Record Number:CaltechAUTHORS:20110317-130412494
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20110317-130412494
Official Citation:Influence of gas rarefaction on the lateral resolution achievable by thermocapillary patterning Nan Liu and Sandra M. Troian Appl. Phys. Lett. 98, 063107 (2011); doi:10.1063/1.3551535 (3 pages) Online Publication Date: 8 February 2011
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22963
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:18 Mar 2011 21:54
Last Modified:19 Sep 2016 17:48

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