A Controllable Electrochemical Fabrication of Metallic Electrodes with a Nanometer/Angstrom-Sized Gap Using an Electric Double Layer as Feedback

摘要

A pair of facing electrodes with a desired gap width ranging from several angstroms to several nanometers is a key structure in the domain of nanoscience and nanotechnol-ogy.For example,such a structure supported on a microchip provides a means to interface individual molecules or nanocrystals in integrated circuits.The fabricated gap should have a width that is controllable and can be set to meet the specific needs of the target molecules(0.5-2 nm scale)or nanocrystals(1-10 nm scale)whose electron-transport properties can be characterized in