Young-Lippmann equation revisited for nano-suspensions

Daniel Orejon, Khellil Sefiane, Martin E.R. Shanahan

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    We present the results of an experimental study investigating electrowetting effects in nano-suspension drops. Wetting of sessile drops of titanium oxide (TiO2) nano-particles dispersed in deionised water was studied under a DC voltage potential. The presence of nano-particles is found to further enhance spreading of drops when a DC potential is applied. Results are explained based on the change in interfacial energy induced by nano-particle adsorption at the solid-liquid interface. An amendment of the Young-Lippmann equation accounting for the presence of nano-particles is proposed. The electrowetting expression proposed is validated against the experimental data for substrates with various dielectric thicknesses.

    Original languageEnglish
    Article number201601
    JournalApplied Physics Letters
    Volume102
    Issue number20
    DOIs
    Publication statusPublished - May 20 2013

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

    Fingerprint Dive into the research topics of 'Young-Lippmann equation revisited for nano-suspensions'. Together they form a unique fingerprint.

    Cite this