Determination of the DC Electrical Conductivity of Multiwalled Carbon Nanotube Films and Graphene Layers from Noncontact Time-Domain Terahertz Measurements
Joint Authors
Dadrasnia, E.
Garet, F.
Lamela, H.
Coutaz, J.-L.
Kuppam, M. B.
Source
Advances in Condensed Matter Physics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-07
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Measuring the DC conductivity of very thin films could be rather difficult because of the electrical contact issue.
This DC conductivity can, however, be extracted from noncontact measurements at GHz and THz frequencies using elaborated conductivity models that nicely fit the experimental data.
Here we employ this technique to study the DC conductivity of fragile nanometer-thick films of multiwalled carbon nanotubes and monolayer graphene.
The THz response of the films is measured by THz time-domain spectroscopy.
We show that the THz conductivity of the samples is well fitted by either Drude-Lorentz model or Drude-Smith model, giving information on the physics of electrical conductivity in these materials.
This extraction procedure is validated by the good agreement between the so-obtained DC conductivity and the one measured with a classical 4-point probe in-line contact method.
American Psychological Association (APA)
Dadrasnia, E.& Lamela, H.& Kuppam, M. B.& Garet, F.& Coutaz, J.-L.. 2014. Determination of the DC Electrical Conductivity of Multiwalled Carbon Nanotube Films and Graphene Layers from Noncontact Time-Domain Terahertz Measurements. Advances in Condensed Matter Physics،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-466678
Modern Language Association (MLA)
Dadrasnia, E.…[et al.]. Determination of the DC Electrical Conductivity of Multiwalled Carbon Nanotube Films and Graphene Layers from Noncontact Time-Domain Terahertz Measurements. Advances in Condensed Matter Physics No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-466678
American Medical Association (AMA)
Dadrasnia, E.& Lamela, H.& Kuppam, M. B.& Garet, F.& Coutaz, J.-L.. Determination of the DC Electrical Conductivity of Multiwalled Carbon Nanotube Films and Graphene Layers from Noncontact Time-Domain Terahertz Measurements. Advances in Condensed Matter Physics. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-466678
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-466678