Fabrication of nano-structured gold films by electrohydrodynamic atomisation |
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Authors: | SR Samarasinghe I Pastoriza-Santos MJ Edirisinghe LM Liz-Marzán |
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Institution: | (1) Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK;(2) Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain |
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Abstract: | A monodisperse alcosol containing 0.1 wt. % 15 nm gold particles was subjected to controlled flow through a metal capillary
exposed to an electric field at the ambient temperature to generate an electrohydrodynamic jet, which subsequently disintegrated
into droplets. A silicon substrate was used to collect the droplets and prepare gold films. By varying the deposition time,
we have prepared gold films in the thickness range of ∼500–∼ 2000 nm in a maximum spray time of 450 s. This is a significant
achievement considering the initial concentration of gold and the spray time involved. The characteristics of the jet, droplets
and films prepared were evaluated using advanced analytical techniques.
PACS 81.15.Rs; 81.15.-z; 81.07.-b; 81.20.-n; 68.55.jd |
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Keywords: | |
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