Article: Measurements on quantum capacitance of individual single walled carbon nanotubes

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TitleMeasurements on quantum capacitance of individual single walled carbon nanotubes
AuthorsDai, J1
Li, J1
Zeng, H1
Cui, X1
KeywordsCapacitance
Energy gap
Semiconductor quantum wires
Single-walled carbon nanotubes (SWCN)
Band gaps
Issue Date2009
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
CitationApplied Physics Letters, 2009, v. 94 n. 9 [How to Cite?]
DOI: http://dx.doi.org/10.1063/1.3093443
AbstractWe report measurements of the quantum capacitance of individual semiconducting and small band gap single walled carbon nanotubes (SWNTs). The observed quantum capacitance, 82 aF/μm for a semiconducting SWNT with chiral index (16,8) and 10.3 aF/μm for a small band gap SWNT upon Fermi level lying at the first subband are remarkably smaller than those originating from the density of states. We attribute the discrepancy to a strong electron correlation in SWNTs and derive the Luttinger parameter g of 0.25-0.3 for the (16,8) SWNT and of 0.32 for a small band gap SWNT. © 2009 American Institute of Physics.
ISSN0003-6951
2011 Impact Factor: 3.844
2011 SCImago Journal Rankings: 0.398
DOIhttp://dx.doi.org/10.1063/1.3093443
ISI Accession Number IDWOS:000264523100074
Funding AgencyGrant Number
Hong Kong GRFHKU 701909
Funding Information:

We thank Guanhua Chen, Jian Wang, and Liwei Chen for helpful discussion. The work was supported by Hong Kong GRF under Grant No. HKU 701909.

ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorDai, J
dc.contributor.authorLi, J
dc.contributor.authorZeng, H
dc.contributor.authorCui, X
dc.date.accessioned2010-05-31T03:53:34Z
dc.date.available2010-05-31T03:53:34Z
dc.date.issued2009
dc.description.abstractWe report measurements of the quantum capacitance of individual semiconducting and small band gap single walled carbon nanotubes (SWNTs). The observed quantum capacitance, 82 aF/μm for a semiconducting SWNT with chiral index (16,8) and 10.3 aF/μm for a small band gap SWNT upon Fermi level lying at the first subband are remarkably smaller than those originating from the density of states. We attribute the discrepancy to a strong electron correlation in SWNTs and derive the Luttinger parameter g of 0.25-0.3 for the (16,8) SWNT and of 0.32 for a small band gap SWNT. © 2009 American Institute of Physics.
dc.description.naturepublished_or_final_version
dc.identifier.citationApplied Physics Letters, 2009, v. 94 n. 9 [How to Cite?]
DOI: http://dx.doi.org/10.1063/1.3093443
dc.identifier.citeulike7020394
dc.identifier.doihttp://dx.doi.org/10.1063/1.3093443
dc.identifier.hkuros161492
dc.identifier.isiWOS:000264523100074
Funding AgencyGrant Number
Hong Kong GRFHKU 701909
Funding Information:

We thank Guanhua Chen, Jian Wang, and Liwei Chen for helpful discussion. The work was supported by Hong Kong GRF under Grant No. HKU 701909.

dc.identifier.issn0003-6951
2011 Impact Factor: 3.844
2011 SCImago Journal Rankings: 0.398
dc.identifier.issue9
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-62149103252
dc.identifier.urihttp://hdl.handle.net/10722/59600
dc.identifier.volume94
dc.languageeng
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
dc.publisher.placeUnited States
dc.relation.ispartofApplied Physics Letters
dc.relation.referencesReferences in Scopus
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
dc.rightsApplied Physics Letters. Copyright © American Institute of Physics.
dc.rightsCopyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Applied Physics Letters, 2009, v. 94 n. 9 , article no. 093114) and may be found at (http://apl.aip.org/resource/1/applab/v94/i9/p093114_s1).
dc.subjectCapacitance
dc.subjectEnergy gap
dc.subjectSemiconductor quantum wires
dc.subjectSingle-walled carbon nanotubes (SWCN)
dc.subjectBand gaps
dc.titleMeasurements on quantum capacitance of individual single walled carbon nanotubes
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong