Modification of Drop Shape Controlled by Electrowetting

Autor:	and Catherine Quilliet, Marguerite Bienia, M. Vallade
Rok vydání:	2003
Předmět:	Materials science business.industry Surfaces and Interfaces Drop shape Condensed Matter Physics Optics Wetting transition Electrochemistry Electrowetting General Materials Science Wetting Effective surface Composite material business Spectroscopy Order of magnitude
Zdroj:	Langmuir. 19:9328-9333
ISSN:	1520-5827 0743-7463
DOI:	10.1021/la030079w
Popis:	Wetting defects were created thanks to electrowetting: the effective surface tension between brine and an insulating solid is independently monitored, via an external electrical field, on two complementary areas (defect and background). This article describes the bicapacitor substrates that allow such a zone differentiation when connected to an adequate high-tension setup. Observations of the deformation of a drop on a stripe-shaped defect showed that it is possible to scan an appreciable range of wetting contrasts between the defect and the background with a unique sample. Theoretical calculations suggest an order of magnitude for electrostatic edge effects characteristic of these "virtual" wetting defects.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a50113cfbcce4c2b9c7abc0a81f38766 https://doi.org/10.1021/la030079w Zobrazit plný text záznamu