Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/57011
Title: Electrowetting on conductors: Anatomy of the phenomenon
Authors: Kontad Ounnunkad
Hollie V. Patten
Matěj Velický
Anna K. Farquhar
Paula A. Brooksby
Alison J. Downard
Robert A.W. Dryfe
Keywords: Chemistry
Medicine
Issue Date: 1-Jan-2017
Abstract: © The Royal Society of Chemistry. We have recently reported that reversible electrowetting can be observed on the basal plane of graphite, without the presence of a dielectric layer, in both liquid/air and liquid/liquid configurations. The influence of carbon structure on the wetting phenomenon is investigated in more detail here. Specifically, it is shown that the adsorption of adventitious impurities on the graphite surface markedly suppresses the electrowetting response. Similarly, the use of pyrolysed carbon films, although exhibiting a roughness below the threshold previously identified as the barrier to wetting on basal plane graphite, does not give a noticeable electrowetting response, which leads us to conclude that specific interactions at the water-graphite interface as well as graphite crystallinity are responsible for the reversible response seen in the latter case. Preliminary experiments on mechanically exfoliated and chemical vapour deposition grown graphene are also reported.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019934298&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/57011
ISSN: 13645498
13596640
Appears in Collections:CMUL: Journal Articles

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