By Topic

Electrical characterization of a carbon nanoelectrode instrumented nanopore sensor

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Spinney, P.S. ; Micro Syst. & Lab., Univ. of Maine, Orono, ME, USA ; Collins, S.D. ; Smith, R.L. ; Howitt, D.G.

This is the first report of a transverse carbon nanoelectrode for sensing translation events through a solid state nanopore. This device has application to the study of molecular transport and DNA sequencing. The device is fabricated on a silicon nitride membrane using electron beam stimulated oxidation of carbon (EBSOC) to first create a carbon nanowire. The nanowire is then encapsulated in a top layer of silicon nitride. A nanopore is then milled through both the silicon nitride membrane and carbon nanowire using a high energy transmission electron microscope (TEM) or a focused ion beam (FIB). This creates a pair of electrodes that are self-aligned to the nanopore. With state-of-the-art FIB techniques pores and electrode gaps ¿ 10 nm are achieved. In this report the results of electrical testing of a device with a 25 nm pore are presented, including current-voltage characterization in air and the detection of a nanoparticle translocating the nanopore in solution.

Published in:

Sensors, 2009 IEEE

Date of Conference:

25-28 Oct. 2009