Single-electron charging effects observed in arrays of gold nanoparticles formed by dielectrophoresis between SAM-coated electrodes

Makoto Moribayashi, Tomoki Yagai, Masataka Moriya, Hiroshi Shimada, Ayumi Hirano, Fumihiko Hirose, Yoshinao Mizugaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In the fabrication of single-electron (SE) devices with gold nanoparticles (GNPs), one of the technical challenges is the arrangement of GNPs into a gap between electrodes. We employed dielectrophoresis (DEP) for the GNP arrangement because it allowed flexible fabrication conditions. When we tried to arrange GNPs into a gap between electrodes, we often had an excessive current during DEP, which resulted in poor fabrication yields. It suggested that the Joule heat generated by the excessive current could break or fused arrays of GNPs when the electrodes were bridged through the arrays. In order to solve this problem, we coated the electrode surfaces with a self-assembled monolayer (SAM) of dithiol, by which high resistance between GNPs and electrodes was realized. That is, suppression of excess currents and improvement of fabrication yield were confirmed. We also demonstrated that a sample device fabricated by using this method exhibited not only the Coulomb blockade but also the Coulomb oscillation.

Original languageEnglish
Title of host publicationIrago Conference 2018
Subtitle of host publicationA 360-Degree Outlook on Critical Scientific and Technological Challenges for a Sustainable Society
EditorsAdarsh Sandhu, Masumi Taki, Tetsuo Kishimoto, Jaiyam Sharma
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417953
DOIs
Publication statusPublished - 2019 Jan 24
Event8th Irago Conference 2018: A 360-Degree Outlook on Critical Scientific and Technological Challenges for a Sustainable Society - Tokyo, Japan
Duration: 2018 Nov 1 → …

Publication series

NameAIP Conference Proceedings
Volume2067
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other8th Irago Conference 2018: A 360-Degree Outlook on Critical Scientific and Technological Challenges for a Sustainable Society
CountryJapan
CityTokyo
Period18/11/1 → …

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

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