Support Options

Submit a Support Ticket

Home Presentation Materials Electrochemical Gating and Molecular Adsorption on Carbon Nanotubes About

Electrochemical Gating and Molecular Adsorption on Carbon Nanotubes

By Moonsub Shim

University of Illinois at Urbana-Champaign

Published on


shim Highly sensitive response of semiconducting single-walled carbon naotubes (SWNTs) to molecular adsorption provides a simple and effective direction in exploiting their unique electrical properties. For example, simultaneous doping and nearly ideal gate efficiencies are achieved with polymer electrolytes as gating medium for nanotube transistors. However, highly sensitive responses can also lead to difficulties in interpretation of many observations such as the controversy surrounding whether oxygen adsorption causes doping or changes in the nature of SWNT-metal contacts. Effects of molecular adsorption from oxygen in the ambient air as well as under aqueous solutions to polymers with varying chemical groups on the electrical properties of SWNTs will be discussed. Extension of these studies to suspended SWNT transistors which are potentially useful in developing NEMs technology will also be discussed.

Cite this work

Researchers should cite this work as follows:

  • Moonsub Shim (2005), "Electrochemical Gating and Molecular Adsorption on Carbon Nanotubes,"

    BibTex | EndNote



Burton Morgan Entrepreneurship Center, Room 121

Tags, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.