Dielectrophoretic assembly of gold nanoparticle arrays evaluated in terms of room-temperature resistance

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

Research output: Contribution to journalArticlepeer-review


Gold nanoparticles (GNPs) are often used as island electrodes of single-electron (SE) devices. One of technical challenges in fabrication of SE devices with GNPs is the placement of GNPs in a nanogap between two lead electrodes. Utilization of dielectrophoresis (DEP) phenomena is one of possible solutions for this challenge, whereas the fabrication process with DEP includes stochastic aspects. In this brief paper, we present our experimental results on electric resistance of GNP arrays assembled by DEP. More than 300 pairs of electrodes were investigated under various DEP conditions by trial and error approach. We evaluated the relationship between the DEP conditions and the electric resistance of assembled GNP arrays, which would indicate possible DEP conditions for fabrication of SE devices.

Original languageEnglish
Pages (from-to)62-65
Number of pages4
JournalIEICE Transactions on Electronics
Issue number2
Publication statusPublished - 2020


  • Coulomb blockade
  • Histogram
  • Single-electron effect
  • Tunnel junction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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