Dielectrophoretic Assembly of Single Gold Nanoparticle into Nanogap Electrodes

    Authors

    S. H. Yoon; S. Kumar; G. H. Kim; Y. S. Choi; T. W. Kim;S. I. Khondaker

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    J. Nanosci. Nanotechnol.

    Keywords

    Dielectrophoresis; Gold Nanoparticles; Nanogap Electrodes; Self Assembly; SUSPENSIONS; FABRICATION; PARTICLES; TRANSPORT; FIELDS; WIRES; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials; Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

    Abstract

    We report the optimization study of assembling single 20 nm gold nano-particle in 20 nm spaced electrode gap via ac dielectrophoresis (DEP) technique. It was observed that time, voltage, and frequency variations influenced significantly the assembly of gold nano-particle in the nano-gap electrodes. Frequency variation study revealed that at lower frequencies ( < 1 MHz) the assembling was observed in low field regions; however, at a moderate frequency of 1 MHz, minimum number of nano-particles was assembled in high field region. Trapping of single 20 nm nano-particle in 20 nm spaced electrodes was successfully achieved under the optimized DEP parameters i.e., frequency, applied voltage and time of values corresponding to 1 MHz, 2 V, and 1 sec, respectively, with the yield of almost 66%. Our results show the promise of optimized dielectrophoresis in the future nano-engineering.

    Journal Title

    Journal of Nanoscience and Nanotechnology

    Volume

    8

    Issue/Number

    7

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    3427

    Last Page

    3433

    WOS Identifier

    WOS:000260776600018

    ISSN

    1533-4880

    Share

    COinS