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Proceedings Paper

Physical mechanism of Au nanopore formation on pyramid using electron beam irradiation
Author(s): Tokutaro Yamaguchi; Myoung Jin Park; Nam Kyou Park; Seong Soo Choi
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Paper Abstract

Recently there have been tremendous interests about the fabrication of the solid state nanopore due to its capability of the nanosize biosensor. In this report, the dynamics of the Au nanopore formation on the pyramidal membrane will be reported. The nanopores on the microfabricated Au coated SiO2 pyramid were fabricated using focused ion beam (FIB) and high energy electron beam techniques such as transmission electron microscopy (TEM), and field emission scanning electron microscopy (FESEM). For high scanning electron beam irradiation using FESEM, shrinking of the Au nanopore was always observed. The nanopore formation dependent upon the primary electron voltage, and the scan rate of the FESEM electron beam was carefully examined. The higher closing rates for the faster scan rate and the lower electron accelerating voltage are observed. For the TEM electron beam exposure, the closing or the opening of the pore was observed depending upon the electron beam current. We do believe that this phenomenon can be attributed to the capillary force and the vaporization of the materials on the viscous liquid membrane due to TEM electron beam irradiation.

Paper Details

Date Published: 3 March 2014
PDF: 9 pages
Proc. SPIE 8957, Plasmonics in Biology and Medicine XI, 89570Y (3 March 2014); doi: 10.1117/12.2035918
Show Author Affiliations
Tokutaro Yamaguchi, Sun Moon Univ. (Korea, Republic of)
Myoung Jin Park, Sun Moon Univ. (Korea, Republic of)
Nam Kyou Park, Seoul National Univ. (Korea, Republic of)
Seong Soo Choi, Sun Moon Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8957:
Plasmonics in Biology and Medicine XI
Tuan Vo-Dinh; Joseph R. Lakowicz, Editor(s)

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