skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes

Abstract

A novel electrochemical wire etching method of fabrication of ultrasharp nanoelectrodes is reported. Tungsten wires can be sharpened to less than 10 nm tip radius in a reproducible manner in less than 1 min by using controllable hydrodynamic electrolyte flow combined with optimized electrochemical etching parameters. The method relies on the variations of the electric field at the surface of a metal wire, while the electrolyte solution is in motion, rather than on the ionic gradient generated in a static solution.

Authors:
; ;  [1];  [1];  [2]
  1. CICECO – Department of Materials and Ceramics Engineering, University of Aveiro, Aveiro (Portugal)
  2. (Germany)
Publication Date:
OSTI Identifier:
22314461
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 85; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ELECTRIC FIELDS; ELECTROCHEMISTRY; ELECTRODES; ELECTROLYTES; ETCHING; NANOSTRUCTURES; SURFACES; TUNGSTEN; VARIATIONS; WIRES

Citation Formats

Silva, E. L., E-mail: elsilva@ua.pt, Silva, R. F., Oliveira, F. J., Zheludkevich, M., and MagIC, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, 21502 Geesthacht. Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes. United States: N. p., 2014. Web. doi:10.1063/1.4895639.
Silva, E. L., E-mail: elsilva@ua.pt, Silva, R. F., Oliveira, F. J., Zheludkevich, M., & MagIC, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, 21502 Geesthacht. Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes. United States. doi:10.1063/1.4895639.
Silva, E. L., E-mail: elsilva@ua.pt, Silva, R. F., Oliveira, F. J., Zheludkevich, M., and MagIC, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, 21502 Geesthacht. Mon . "Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes". United States. doi:10.1063/1.4895639.
@article{osti_22314461,
title = {Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes},
author = {Silva, E. L., E-mail: elsilva@ua.pt and Silva, R. F. and Oliveira, F. J. and Zheludkevich, M. and MagIC, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, 21502 Geesthacht},
abstractNote = {A novel electrochemical wire etching method of fabrication of ultrasharp nanoelectrodes is reported. Tungsten wires can be sharpened to less than 10 nm tip radius in a reproducible manner in less than 1 min by using controllable hydrodynamic electrolyte flow combined with optimized electrochemical etching parameters. The method relies on the variations of the electric field at the surface of a metal wire, while the electrolyte solution is in motion, rather than on the ionic gradient generated in a static solution.},
doi = {10.1063/1.4895639},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 9,
volume = 85,
place = {United States},
year = {2014},
month = {9}
}