Limits to Nanopatterning of Fluids on Surfaces in Soft Lithography
2008 (English)In: Advanced Functional Materials, ISSN 1616-301X, E-ISSN 1616-3028, Vol. 18, no 17, 2563-2571 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2008. Vol. 18, no 17, 2563-2571 p.
Lithography, microcontact printing (µCP), nanostructures, nanowires, surface patterning
IdentifiersURN: urn:nbn:se:liu:diva-42810DOI: 10.1002/adfm.200800073Local ID: 68960OAI: oai:DiVA.org:liu-42810DiVA: diva2:263667