Linear colloidal crystal arrays by electrohydrodynamic printing

H. F. Poon, D. A. Saville, Ilhan A. Aksay

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We use electrohydrodynamic jets of colloidal suspensions to produce arrays of colloidal crystalline stripes on surfaces. A critical factor in maintaining a stable jet is the distance of separation between the nozzle and the surface. Colloidal crystalline stripes are produced as two wetting lines of the deployed suspension merge during drying. To ensure that the two wetting lines merge, the "deployed-line-width" to "particle size" ratio is kept below a critical value so that the capillary forces overcome the frictional forces between the particles and the substrate.

Original languageEnglish (US)
Article number133114
JournalApplied Physics Letters
Volume93
Issue number13
DOIs
StatePublished - Oct 13 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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