Abstract
Wires composed of AgxO (1 < x < 2) with diameters ranging from 0.7 to 1.1 μm were prepared by electrochemical step edge decoration on highly oriented pyrolytic graphite (HOPG) electrode surfaces. AgxO microwires were obtained by the oxidative electrodeposition of AgxO from a pH = 6 acetate-based plating solution. Step edge selectivity, coupled with the high nucleation density necessary for wire formation, required that the electrodeposition be carried out within a potential window of just 10 mV. The resulting microwires were characterized by scanning electron microscopy and electron diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy. AgxO microwires were transferred from the HOPG surface to a glass surface, and electrical contacts were applied to ensembles of between 5 and 100 transferred microwires. The resistance of these microwire ensembles increased reversibly by up to 5000% upon exposure to NH3 vapor, whereas an irreversible decrease in the wire resistance was seen upon exposure to...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
