Electrostatic transportation of water droplets on superhydrophobic surfaces

Altti Torkkeli, Jaakko Saarilahti, Ari Häärä, Harri Härmä, Tero Soukka, Pertti Tolonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    60 Citations (Scopus)

    Abstract

    This article reports electrostatic transportation of water droplets on superhydrophobic alkylketene dimer (AKD) and Teflon AF® surfaces. The actuation is based on electrostatic forces generated by metal electrodes placed underneath the surface. By switching the electrode voltages, the droplets moved stepwise along the electrode paths. The lowest voltage which resulted continuous movement was 124 VAC (rms) and the maximum speed was over 1 cm/s which shows great improvement with respect to previously reported electrostatic actuation of water droplets in open air [M. Washizu, "Electrostatic Actuation of Liquid Droplets for microreactor Applications", IEEE Trans. Ind. App. 34, 4 (1998), pp. 732-737].

    Original languageEnglish
    Title of host publicationTechnical Digest MEMS 2001: 14th IEEE International Conference on Micro Electro Mechanical Systems
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Pages475-478
    Number of pages4
    ISBN (Print)0-7803-5998-4
    DOIs
    Publication statusPublished - 1 Jan 2001
    MoE publication typeA4 Article in a conference publication
    Event14th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2001 - Interlaken, Switzerland
    Duration: 21 Jan 200125 Jan 2001

    Publication series

    SeriesProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
    Volume2001
    ISSN1084-6999

    Conference

    Conference14th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2001
    CountrySwitzerland
    CityInterlaken
    Period21/01/0125/01/01

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  • Cite this

    Torkkeli, A., Saarilahti, J., Häärä, A., Härmä, H., Soukka, T., & Tolonen, P. (2001). Electrostatic transportation of water droplets on superhydrophobic surfaces. In Technical Digest MEMS 2001: 14th IEEE International Conference on Micro Electro Mechanical Systems (pp. 475-478). IEEE Institute of Electrical and Electronic Engineers. Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS), Vol.. 2001 https://doi.org/10.1109/MEMSYS.2001.906582