UPM Institutional Repository

The role of medium on the assembly of carbon nanotube by dielectrophoresis


Gumaan Abdulhameed, Abdullah Abdulhameed and Abdul Halin, Izhal and Mohtar, Mohd Nazim and Hamidon, Mohd Nizar (2019) The role of medium on the assembly of carbon nanotube by dielectrophoresis. Journal of Dispersion Science and Technology, 41 (10). pp. 1576-1587. ISSN 0193-2691; ESSN: 1532-2351


Dielectrophoresis (DEP) is an electrode-medium process used to control the movement of Carbon nanotubes (CNTs) within a solution under nonuniform electric fields. CNTs are typically dispersed into a solvent to form a homogeneous suspension in order to prevent their aggregation and to improve solubility. This paper starts with a short review of the techniques used to improve the compatibility of CNTs with a target medium. Then, direct and indirect variations in CNTs’ velocities as a function of DEP force were investigated, under different dispersion mediums, for a rectangular electrode pair with a 10 μm gap subjected to a 500 kHz AC signal with an amplitude of 10 V. The effects of changes in permittivity, conductivity, viscosity, and density of the medium were presented and discussed. Simulation results from this study were used to further clarify the role of the medium on the motion of CNTs during alignment using a DEP process prior to an actual alignment.

Download File

[img] Text
The role of medium.pdf

Download (282kB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1080/01932691.2019.1631841
Publisher: Taylor and Francis
Keywords: Dielectrophoresis; Carbon nanotube; Dispersion; Assembly; Medium
Depositing User: Mr. Sazali Mohamad
Date Deposited: 17 Oct 2020 21:18
Last Modified: 17 Oct 2020 21:18
Altmetrics: http://www.altmetric.com/details.php?domain=psair.upmedu.my&doi=10.1080/01932691.2019.1631841
URI: http://psasir.upm.edu.my/id/eprint/82588
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item