Electrically guided microweb formation with Ag nanofibers under UV irradiation and its application to electrochemical and plasmonic devices

Masahiro Takeji, Yuya Oaki, Hiroaki Imai

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Micrometer-scale webs consisting of interconnected Ag nanofibers were prepared in a solution system containing Ag + ions and ethylenediaminetetraacetate under UV illumination. The site-specific formation of the Ag microwebs on desired locations, such as the surface of metal microwires and transparent glass substrates, was achieved with the application of a weak negative bias. The electrode covered with the Ag microweb exhibited a high performance as an electrochemical capacitor because of its well-connected structure with a high specific surface area and a wide space for the smooth ion transfer. Significant negative photoconductivity under visible light illumination was observed with the transparent Ag microwebs formed on a glass plate due to the strong interaction between electrons and excited surface plasmon polaritons in the nanoscale network.

Original languageEnglish
Pages (from-to)6103-6107
Number of pages5
JournalJournal of Physical Chemistry C
Volume116
Issue number10
DOIs
Publication statusPublished - 2012 Mar 15

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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