Patterning lines by capillary flows.

Saurabh Vyawahare; Kate M Craig; Axel Scherer

doi:10.1021/nl0522678

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Patterning lines by capillary flows.

Saurabh Vyawahare·Kate M Craig·Axel Scherer

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Abstract

We report that capillary flows in an evaporating thin film create line patterns, with widths ranging from a few micrometers to less than 100 nm. Deliberate patterning of such lines requires contact-line pinning and the presence of foaming surfactants. Large-scale photolithography can guide and control these structures by creating pinning points and steering evaporation. We provide demonstrations of this process by making self-assembling lines of colloidal quantum dots and microspheres.

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Animals Capillaries Cattle Colloids Membranes, Artificial Motion Nanostructures Particle Size Quantum Theory Sensitivity and Specificity Serum Albumin, Bovine Surface Properties Surface-Active Agents Journal Article Research Support, Non-U.S. Gov't

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Saurabh Vyawahare, Kate M Craig, Axel Scherer. 2006. Patterning lines by capillary flows.. https://doi.org/10.1021/nl0522678

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