Assembling gold nanoparticles by dielectrophoresis with pit arrays on PMMA fabricated by proton beam writing

Taichi Shibuya, Satoshi Uchida, Yasuyuki Ishii, Hiroyuki Nishikawa

Research output: Contribution to journalArticle

Abstract

We performed dielectrophoresis (DEP) of Au colloidal particles using PMMA pit arrays fabricated by proton beam writing. Frequency dependence of DEP shows the collection of nanoparticles at pit arrays is most efficient at the AC voltage frequency of 1 kHz. The application of DC voltage during DEP also helps transport and supply of nanoparticles to the pit arrays. Gradual increase of the AC voltage amplitude should be taken into consideration to avoid damage effects on indium tin oxide electrode by joule heating.

Original languageEnglish
Pages (from-to)60-63
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume456
DOIs
Publication statusPublished - 2019 Oct 1

Fingerprint

Proton beams
assembling
Electrophoresis
proton beams
Gold
gold
Nanoparticles
nanoparticles
alternating current
Electric potential
electric potential
Joule heating
Tin oxides
indium oxides
Indium
tin oxides
direct current
damage
Electrodes
electrodes

Keywords

  • Dielectrophoresis
  • Indium tin oxide
  • Nanoparticles
  • Proton beam writing

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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T1 - Assembling gold nanoparticles by dielectrophoresis with pit arrays on PMMA fabricated by proton beam writing

AU - Shibuya, Taichi

AU - Uchida, Satoshi

AU - Ishii, Yasuyuki

AU - Nishikawa, Hiroyuki

PY - 2019/10/1

Y1 - 2019/10/1

N2 - We performed dielectrophoresis (DEP) of Au colloidal particles using PMMA pit arrays fabricated by proton beam writing. Frequency dependence of DEP shows the collection of nanoparticles at pit arrays is most efficient at the AC voltage frequency of 1 kHz. The application of DC voltage during DEP also helps transport and supply of nanoparticles to the pit arrays. Gradual increase of the AC voltage amplitude should be taken into consideration to avoid damage effects on indium tin oxide electrode by joule heating.

AB - We performed dielectrophoresis (DEP) of Au colloidal particles using PMMA pit arrays fabricated by proton beam writing. Frequency dependence of DEP shows the collection of nanoparticles at pit arrays is most efficient at the AC voltage frequency of 1 kHz. The application of DC voltage during DEP also helps transport and supply of nanoparticles to the pit arrays. Gradual increase of the AC voltage amplitude should be taken into consideration to avoid damage effects on indium tin oxide electrode by joule heating.

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KW - Nanoparticles

KW - Proton beam writing

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