Amplitude scaling of a static wrinkle at an oil-air interface created by dielectrophoresis forces

Carl Brown, Wamid Al-Shabib, Gary Wells, Glen McHale, Michael Newton

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Dielectrophoresis forces have been used to create a static periodic wrinkle with a sinusoidal morphology on the surface of a thin layer of 1-decanol oil. The surface deformation occurs when a voltage V is applied between adjacent coplanar strip electrodes in an interdigitated array onto which the oil film is coated. It has been shown experimentally that the peak-to-peak amplitude A of the wrinkle scales according to the functional form A∝V2 exp(-α/p) for a range of oil film thicknesses (between 15 and 50 μm) and wrinkle pitches p (160, 240, and 320 μm).
Original languageEnglish
Pages (from-to)242904
JournalApplied Physics Letters
Volume97
Issue number24
DOIs
Publication statusPublished - 2010

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