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dc.contributor.authorYoshioka, Hironorien
dc.contributor.authorMorioka, Naoyaen
dc.contributor.authorSuda, Junen
dc.contributor.authorKimoto, Tsunenobuen
dc.date.accessioned2012-11-02T06:06:46Z-
dc.date.available2012-11-02T06:06:46Z-
dc.date.issued2011-03-15-
dc.identifier.issn0021-8979-
dc.identifier.urihttp://hdl.handle.net/2433/160640-
dc.description.abstractSi-nanowire (Si-NW) MOSFETs, the cross-sectional size (square root of the cross-sectional area of NWs) of which was changed from 18 to 4 nm, were fabricated and characterized. Both n- and p-channel MOSFETs have shown a nearly ideal subthreshold swing of 63 mV/decade. The threshold voltage of n-/p-channel MOSFETs has gradually increased/decreased with decreasing the cross-sectional size. The bandgap shift from bulk Si has been derived from the threshold-voltage shift. The bandgap of Si-NWs was calculated by a density functional theory, tight binding method, and effective mass approximation. The calculated bandgap shows good agreement with that derived from threshold voltage. The theoretical calculation indicates that the bandgap is dominated by the cross-sectional size (area) and is not very sensitive to the shape within the aspect-ratio range of 1.0-2.5.en
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Institute of Physicsen
dc.rightsCopyright 2011 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 JOURNAL OF APPLIED PHYSICS 109, 064312 (2011) and may be found at http://link.aip.org/link/?jap/109/064312en
dc.subjectdensity functional theoryen
dc.subjecteffective massen
dc.subjectelemental semiconductorsen
dc.subjectenergy gapen
dc.subjectMOSFETen
dc.subjectnanowiresen
dc.subjectsemiconductor quantum wiresen
dc.subjectsiliconen
dc.subjecttight-binding calculationsen
dc.titleBandgap shift by quantum confinement effect in <100> Si-nanowires derived from threshold-voltage shift of fabricated metal-oxide-semiconductor field effect transistors and theoretical calculationsen
dc.typejournal article-
dc.type.niitypeJournal Article-
dc.identifier.ncidAA00693547-
dc.identifier.jtitleJOURNAL OF APPLIED PHYSICSen
dc.identifier.volume109-
dc.identifier.issue6-
dc.relation.doi10.1063/1.3559265-
dc.textversionpublisher-
dc.identifier.artnum064312-
dc.relation.urlhttp://link.aip.org/link/?jap/109/064312-
dcterms.accessRightsopen access-
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