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- Wigenius, Jens, 1975-, et al.
(author)
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Limits to Nanopatterning of Fluids on Surfaces in Soft Lithography
- 2008
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In: Advanced Functional Materials. - : Wiley. - 1616-301X .- 1616-3028. ; 18:17, s. 2563-2571
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Journal article (peer-reviewed)abstract
- Soft lithographic microcontact printing using the residual polydimethylsiloxane (PDMS) found in elastomeric PDMS stamps is demonstrated to lead to unstable prints with sub-micrometer dimensions. The statics and dynamics of the process have been followed with time-resolved atomic force microscopy, imaging ellipsometry, water contact angle measurement, and optical diffraction. It is proposed that this instability places a fundamental limitation on patterning by macromolecular fluids, which is of general relevance to soft lithography and nanoimprint lithography with low viscosity polymers.
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