NDLI: Characterization of Multi-Walled Carbon Nanotube (MWNT) Papers Using X-Band Waveguides

Content Provider	IEEE Xplore Digital Library
Author	Hao Xin Lu Wang Carnahan, D.
Copyright Year	2007
Description	Author affiliation: Arizona Univ., Tucson (Hao Xin; Lu Wang)
Abstract	Multi-walled carbon nanotubes (MWNT) are characterized at X-band (8-12 GHz) by waveguide measurements. The scattering parameters (S-parameters) of thin MWNT papers containing a large ensemble of randomly oriented nanotubes are measured by a vector network analyzer. An extraction algorithm has been developed to compute the effective complex permittivity (epsiv = epsiv' - j epsiv") and permeability (mu = mu' - j mu") of the MWNT papers from the measured S-parameters. The extracted effective medium parameters are verified by finite-element simulations using Ansoft HFSS. The uncertainties for this characterization method are analyzed. The extracted conductivity of the MWNT papers is on the order of 1500 S/m and the dielectric constant is on the order of -500. No significant magnetic responses are observed. To overcome the relatively large uncertainty associated with the reflection coefficient Sll, the extracted imaginary permittivity (epsiv") is fitted by the Drude model and the dielectric constant (epsiv') and permeability are recalculated.
Starting Page	1181
Ending Page	1184
File Size	2909005
Page Count	4
File Format	PDF
ISBN	1424406870
ISSN	0149645X
DOI	10.1109/MWSYM.2007.380341
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Carbon nanotubes Permittivity measurement Scattering parameters Dielectric constant Dielectric measurements Permeability measurement Finite element methods Computational modeling Magnetic analysis Conductivity Drude model Permittivity permeability conductivity waveguide MWNT
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in