Scanning electrochemical microscopy: diffusion controlled approach curves for conical AFM-SECM tips
Scanning electrochemical microscopy: diffusion controlled approach curves for conical AFM-SECM tips
The diffusion controlled response of conical AFM-SECM probes is presented. Accurate expressions are given which describe the dependence of the probe current on the tip radius and aspect ratio, insulating sheath radius and tip–substrate distance for positive feedback and hindered diffusion. A procedure is proposed to determine the tip dimensions from the experimental approach curves.
SECM
AFM
Conical electrode
Approach curve
Diffusion control
29-33
Leonhardt, Kelly
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Avdic, Amra
022fed2a-e835-4150-bb23-1ae462ce705d
Lugstein, Alois
702eddde-b4ab-48bb-b8a4-48854cb5bb99
Pobelov, Ilya
1727d807-9b11-4dc3-a168-90a1f3f867c6
Wandlowski, Thomas
23e26a9d-d828-4229-905d-712d41dbf0e9
Gollas, Bernhard
8b16f513-ff40-481d-ac6c-4a9240398ab7
Denuault, Guy
5c76e69f-e04e-4be5-83c5-e729887ffd4e
February 2013
Leonhardt, Kelly
2bf57566-d3c5-40b4-8137-684153f22974
Avdic, Amra
022fed2a-e835-4150-bb23-1ae462ce705d
Lugstein, Alois
702eddde-b4ab-48bb-b8a4-48854cb5bb99
Pobelov, Ilya
1727d807-9b11-4dc3-a168-90a1f3f867c6
Wandlowski, Thomas
23e26a9d-d828-4229-905d-712d41dbf0e9
Gollas, Bernhard
8b16f513-ff40-481d-ac6c-4a9240398ab7
Denuault, Guy
5c76e69f-e04e-4be5-83c5-e729887ffd4e
Leonhardt, Kelly, Avdic, Amra, Lugstein, Alois, Pobelov, Ilya, Wandlowski, Thomas, Gollas, Bernhard and Denuault, Guy
(2013)
Scanning electrochemical microscopy: diffusion controlled approach curves for conical AFM-SECM tips.
Electrochemistry Communications, 27, .
(doi:10.1016/j.elecom.2012.10.034).
Abstract
The diffusion controlled response of conical AFM-SECM probes is presented. Accurate expressions are given which describe the dependence of the probe current on the tip radius and aspect ratio, insulating sheath radius and tip–substrate distance for positive feedback and hindered diffusion. A procedure is proposed to determine the tip dimensions from the experimental approach curves.
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More information
Published date: February 2013
Keywords:
SECM
AFM
Conical electrode
Approach curve
Diffusion control
Organisations:
Electrochemistry
Identifiers
Local EPrints ID: 345912
URI: http://eprints.soton.ac.uk/id/eprint/345912
ISSN: 1388-2481
PURE UUID: b39217d0-3259-487e-89f2-064d0e3326cb
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Date deposited: 05 Dec 2012 15:34
Last modified: 15 Mar 2024 02:44
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Contributors
Author:
Kelly Leonhardt
Author:
Amra Avdic
Author:
Alois Lugstein
Author:
Ilya Pobelov
Author:
Thomas Wandlowski
Author:
Bernhard Gollas
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