Publication detail

Carbon nanotubes: Preparation and measurement of their electrical properties for pressure sensor application

Richard Ficek, Radimír Vrba, Bo-Hyun Kim, Stephen M. Goodnick, Srdjan Milicic, Zuzana Kučerová, Lenka Zajíčková, Marek Eliáš

Original Title

Carbon nanotubes: Preparation and measurement of their electrical properties for pressure sensor application

English Title

Carbon nanotubes: Preparation and measurement of their electrical properties for pressure sensor application

Type

conference paper

Language

en

Original Abstract

Carbon nanotubes (CNTs) were synthesized in atmospheric pressure microwave plasma torch in the mixture of argon, methane and hydrogen on the silicon substrate with SiO2 overlayer and a thin top iron film serving as a catalyst. This deposition technique is unique because of its simplicity and high CNT growth rate but it is still under investigation as concerns exits around its reproducibility. CNTs were deposited with the future prospect of their applications or further characterization that might require CNTs in the form of suspension or powder. One of the research directions includes measurements of CNT electrical properties such as their current-voltage (I–V) characteristics. Preparation of solutions with well dispersed CNTs was studied using various liquids (distilled water, ethyl alcohol) and ultrasonication. Dried drops of these solutions were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM) in order to assess CNT appearance and dispersion. Electrical measurement chips with gold electrodes were prepared by electron lithography. CNTs were placed on the chips by dropping their solution and the I–V characteristics may be measured by contacting the electrodes bridged by CNTs.

English abstract

Carbon nanotubes (CNTs) were synthesized in atmospheric pressure microwave plasma torch in the mixture of argon, methane and hydrogen on the silicon substrate with SiO2 overlayer and a thin top iron film serving as a catalyst. This deposition technique is unique because of its simplicity and high CNT growth rate but it is still under investigation as concerns exits around its reproducibility. CNTs were deposited with the future prospect of their applications or further characterization that might require CNTs in the form of suspension or powder. One of the research directions includes measurements of CNT electrical properties such as their current-voltage (I–V) characteristics. Preparation of solutions with well dispersed CNTs was studied using various liquids (distilled water, ethyl alcohol) and ultrasonication. Dried drops of these solutions were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM) in order to assess CNT appearance and dispersion. Electrical measurement chips with gold electrodes were prepared by electron lithography. CNTs were placed on the chips by dropping their solution and the I–V characteristics may be measured by contacting the electrodes bridged by CNTs.

Keywords

electrical properties, CNTs

RIV year

2006

Released

14.09.2006

Publisher

Vysoké učení technické v Brně

Location

Brno

ISBN

80-214-3246-2

Book

EDS´06 IMAPS CS INTERNATIONAL CONFERENCE PROCEEDINGS

Edition number

první

Pages from

232

Pages to

237

Pages count

6

BibTex


@inproceedings{BUT24912,
  author="Richard {Ficek} and Radimír {Vrba} and Bo-Hyun {Kim} and Stephen {Goodnick} and Srdjan {Milicic} and Zuzana {Kučerová} and Lenka {Zajíčková} and Marek {Eliáš}",
  title="Carbon nanotubes: Preparation and measurement of their electrical properties for pressure sensor application",
  annote="Carbon nanotubes (CNTs) were synthesized in atmospheric pressure microwave plasma torch in the mixture of argon, methane and hydrogen on the silicon substrate with SiO2 overlayer and a thin top iron film serving as a catalyst. This deposition technique is unique because of its simplicity and high CNT growth rate but it is still under investigation as concerns exits around its reproducibility. CNTs were deposited with the future prospect of their applications or further characterization that might require CNTs in the form of suspension or powder. One of the research directions includes measurements of CNT electrical properties such as their current-voltage (I–V) characteristics. Preparation of solutions with well dispersed CNTs was studied using various liquids (distilled water, ethyl alcohol) and ultrasonication. Dried drops of these solutions were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM) in order to assess CNT appearance and dispersion. Electrical measurement chips with gold electrodes were prepared by electron lithography. CNTs were placed on the chips by dropping their solution and the I–V characteristics may be measured by contacting the electrodes bridged by CNTs.",
  address="Vysoké učení technické v Brně",
  booktitle="EDS´06 IMAPS CS INTERNATIONAL CONFERENCE PROCEEDINGS",
  chapter="24912",
  institution="Vysoké učení technické v Brně",
  year="2006",
  month="september",
  pages="232",
  publisher="Vysoké učení technické v Brně",
  type="conference paper"
}