authors |
Silva, EL; Silva, RF; Zheludkevich, M; Oliveira, FJ |
nationality |
International |
journal |
REVIEW OF SCIENTIFIC INSTRUMENTS |
keywords |
SCANNING-TUNNELING-MICROSCOPY; TUNGSTEN TIPS; MICROELECTRODES; ELECTROHYDRODYNAMICS; ELECTRODE; SENSORS; WIRES; STM; PH |
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. (C) 2014 AIP Publishing LLC. |
publisher |
AMER INST PHYSICS |
issn |
0034-6748 |
year published |
2014 |
volume |
85 |
issue |
9 |
digital object identifier (doi) |
10.1063/1.4895639 |
web of science category |
Instruments & Instrumentation; Physics, Applied |
subject category |
Instruments & Instrumentation; Physics |
unique article identifier |
WOS:000342910500075
|
link |
25273774
|