A nickel nanowire diluter operating through the principle of the dielectrophoretic attraction force

Jinho Yang, Hyeun Joong Yoon, Eui Hyeok Yang, Sang Sik Yang

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a microfabricated nanowire diluter which dilutes the concentration of nanowires in solution instead of by the conventional centrifuge process. The device has 16 pairs of gold electrodes in a micro channel composed of a glass substrate and PDMS. We prepared nickel nanowires by the template-directed electrodeposition method using nanoporous anodized aluminum template (AAO). We injected the Dimethylformamide (DMF) solution containing nanowires into the inlet of the diluter while applying square wave voltages on the electrodes to trap the nanowires at the subsequent gold electrodes by means of dielectrophoretic attraction forces. The concentration of nanowires at the outlet of the micro channel was changed as we expected, which illustrates that the device can effectively dilute nanowires and can be applied to a controlled assembly of nanowires.

Original languageEnglish
Pages (from-to)385-389
Number of pages5
JournalTransactions of the Korean Institute of Electrical Engineers
Volume59
Issue number2
StatePublished - Feb 2010

Keywords

  • Dielectrophoretic attraction
  • Nanowire diluter
  • Nickel nanowires
  • Template-directed electrodeposition

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