Fabrication of Electrochemical Nanoelectrode for Sensor Application Using Focused Ion Beam Technology

• Authors: Adam Łaszcz , Wojciech Nogala , Andrzej Czerwinski , Jacek Ratajczak , Jerzy Kątcki
• Languages of publication: EN

Abstracts

EN

The capabilities and applications of the focused ion beam (FIB) technology for detection of an electrochemical signal in nanoscale area are shown. The FIB system, enabling continuous micro- and nanofabrication within only one equipment unit, was used to produce a prototype of electrochemical nanometer-sized electrode for sensor application. Voltammetric study of electrochemically active compound (ferrocenemethanol) revealed the diffusion limiting current (12 pA), corresponding to a disc (planar) nanoelectrode with about 70 nm diameter of contact area. This size is in a good accordance with the designed contact-area (50 nm × 100 nm for width × thickness) of the FIB-produced nanoelectrode. It confirms that produced nanoelectrode is working properly in liquid solution and may enable correct measurements in nanometer-sized regions.

Keywords

EN

FIB nanotechnology; nanosensor; electrochemistry

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2014
• Volume: 16
• Issue: 3
• Pages: 40-44

Dates

published

1 - 9 - 2014

online

3 - 10 - 2014

Contributors

author

Adam Łaszcz

• Institute of Electron Technology, al. Lotników 32/46, 02-668 Warsaw, Poland

author

Wojciech Nogala

• Polish Academy of Sciences, Institute of Physical Chemistry, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland

author

Andrzej Czerwinski

• Institute of Electron Technology, al. Lotników 32/46, 02-668 Warsaw, Poland

author

Jacek Ratajczak

• Institute of Electron Technology, al. Lotników 32/46, 02-668 Warsaw, Poland

author

Jerzy Kątcki

• Institute of Electron Technology, al. Lotników 32/46, 02-668 Warsaw, Poland

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Identifiers

DOI

10.2478/pjct-2014-0048