Frequency dependence and assembly characteristics of silver nanomaterials trapped by dielectrophoresis

R. Kataoka, H. Tokita, S. Uchida, R. Sano, H. Nishikawa

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


For rapid and accurate fabrication of industrial products, the development of effective technique to manipulate and assemble nanomaterials is essential. In the present work, we investigated the dielectrophoretic behavior of silver nanoparticles and nanowires at various driving frequencies and voltage amplitudes, and examined three-dimensional assembly of the nanomaterials using dielectrophoretic devices with microstructures. The collectable range in frequency for nanoparticles and nanowires was from 10 kHz to 1 MHz. In particular, the aggregation shape of nanowires was changed against driving frequency. The bunch of nanowires was bridged between pillars of dielectrophoretic device. When the applied voltage was turned off, the trapped nanowires were entirely released. In pit type device, trapping of nanoparticles was observed in outermost pits of array. The aggregates of nanoparticles were directly fixed to the bottom electrode.

Original languageEnglish
Article number012005
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2015 Oct 26
EventElectrostatics 2015 - Southampton, United Kingdom
Duration: 2015 Apr 122015 Apr 16

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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