Fabrication of Clean Nanogaps Using a Combined Electrochemical-Chemical Method
Journal article, 2009
Fabrication of clean nanogaps is achieved using combined electrochemical/ chemical etching of microfabricated gold wires in an iodine-based solution. In contrast to simple chemical etching, all visible spurious metal grains are removed while the gap is forming (see image). Obtained gaps have a controlled size between 1 and 10 nm, which is suitable to connect small molecules or nanoparticles.
electrochemical methods
separation
transport
metallic electrodes
nanowires
molecular junctions
gold
iodine
transistor
nanostructures
electrodes
Author
Yann-Vai Kervennic
Chalmers University of Technology
Sergey Kubatkin
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Small
1613-6810 (ISSN) 1613-6829 (eISSN)
Vol. 5 22 2541-2544Subject Categories (SSIF 2011)
Physical Chemistry
Other Engineering and Technologies
Condensed Matter Physics
DOI
10.1002/smll.200900908