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Spontaneous nanoscale polymer solution patterning using solvent evaporation driven double-dewetting edge lithography
We develop an innovative solution processable edge lithography, which we call double-dewetting edge lithography (DDEL). The polymer solution spontaneously dewets the hydrophobic regions and covers only hydrophilic regions on a surface energy-engineered substrate, which is achieved by a combination o...
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Published in: | Soft matter 2012-01, Vol.8 (2), p.465-471 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We develop an innovative solution processable edge lithography, which we call double-dewetting edge lithography (DDEL). The polymer solution spontaneously dewets the hydrophobic regions and covers only hydrophilic regions on a surface energy-engineered substrate, which is achieved by a combination of conventional photolithography and a subsequent hydrophobic treatment of the exposed areas. Then, the secondary dewetting occurs through a coffee stain effect during the solvent evaporation, leaving polymer edge patterns behind. The whole double-dewetting phenomenon is complete within 1 s. This technique is a fast, cost-effective and easy direct solution patterning method, which enables nanoscale polymer edge patterns to be produced from various micron-scale platforms including lines, angular and irregular shapes. |
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ISSN: | 1744-683X 1744-6848 |
DOI: | 10.1039/C1SM06431B |