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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
2012 Impact Factor: 3.794
2012 SCImago Journal Rankings: 1.938
 
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 FieldValue
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.eissn1077-3118
 
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
2012 Impact Factor: 3.794
2012 SCImago Journal Rankings: 1.938
 
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
 
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<description.abstract>We report measurements of the quantum capacitance of individual semiconducting and small band gap single walled carbon nanotubes (SWNTs). The observed quantum capacitance, 82 aF/&#956;m for a semiconducting SWNT with chiral index (16,8) and 10.3 aF/&#956;m 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. &#169; 2009 American Institute of Physics.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong