Local surface modification via confined electrochemical deposition with FluidFM

We show how the association of AFM with microfluidics, namely FluidFM, is a valuable approach for the versatile electrochemical creation of patterns having diverse shapes and topologies. Localization of the electrochemical reactions was obtained by confining the electroactive species in the microcha...

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Bibliographic Details
Published inRSC advances Vol. 5; no. 103; pp. 84517 - 84522
Main Authors Hirt, Luca, Grüter, Raphael R., Berthelot, Thomas, Cornut, Renaud, Vörös, János, Zambelli, Tomaso
Format Journal Article
LanguageEnglish
Published Royal Society of Chemistry 01.01.2015
Subjects
Apertures
Atomic force microscopy
Chemical Sciences
Confining
Deposition
Electrodes
Lithography
Material chemistry
Microfluidics
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Summary:We show how the association of AFM with microfluidics, namely FluidFM, is a valuable approach for the versatile electrochemical creation of patterns having diverse shapes and topologies. Localization of the electrochemical reactions was obtained by confining the electroactive species in the microchannel and dispensing them at a precise position through the aperture of FluidFM probes. The force feedback enabled a gentle approach onto the electrode as well as a gentle contact during both the lithography procedure as well as in situ topographical AFM imaging just before or after deposition. As model systems, we demonstrate electroplating of copper and electrografting of organic moieties by reduction of aryldiazonium salts.
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ISSN:2046-2069
2046-2069
DOI:10.1039/C5RA07239E