Controlled directional growth of silver microwires on a solid electrolyte surface

Keng Hsu, Placid Ferreira, Nicholas Fang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A silver microwire was formed on a silver sulfide surface in a directional and reversible manner. This wire formed upon applying an electric field between a tip-less atomic force microscopy probe placed on the Ag2 S surface and a grounded silver electrode embedded in the surface. The process was studied in real-time with optical microscope and a discussion was provided on how the morphological instability was violated. A numerical model based on the mixed ionic-electronic transport was developed to study the observation and a good match of growth rates was found. The fast metal wire growth phenomenon observed here has potential in applications for electronics as well as plasmonic sensors and waveguides.

Original languageEnglish (US)
Article number024101
JournalApplied Physics Letters
Issue number2
StatePublished - 2010

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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