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Dielectrophoretic behavior of ionic surfactant-solubilized carbon nanotubes
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.
2006 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 421, no 1-3, 11-15 p.Article in journal (Refereed) Published
Abstract [en]

The deposition of carbon nanotubes (CNTs), suspended in aqueous sodium dodecylbenzene sulfonate (SDBS) solution, to predefined microelectrodes using alternating current dielectrophoresis is found to strongly depend on the frequency and SDBS concentration. The deposition rate of CNTs increases with increasing frequency. At high SDBS concentrations, the alignment of CNTs between electrode pairs is only achievable at high frequencies above 1 MHz. The morphology of the deposited CNTs relative to the electrodes varies with the SDBS concentration. The experimental observations are discussed by treating the CNTs as a rigid rod.

Place, publisher, year, edition, pages
2006. Vol. 421, no 1-3, 11-15 p.
Keyword [en]
field-effect transistors, ac-dielectrophoresis, networks
Identifiers
URN: urn:nbn:se:kth:diva-15589DOI: 10.1016/j.cplett.2006.01.053ISI: 000236662600003Scopus ID: 2-s2.0-33644997756OAI: oai:DiVA.org:kth-15589DiVA: diva2:333631
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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