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dc.contributor.authorGülseren, O.en_US
dc.contributor.authorYildirim, T.en_US
dc.contributor.authorCiraci, S.en_US
dc.date.accessioned2016-02-08T10:29:26Z
dc.date.available2016-02-08T10:29:26Z
dc.date.issued2003en_US
dc.identifier.issn0163-1829
dc.identifier.urihttp://hdl.handle.net/11693/24438
dc.description.abstractUsing first-principles density functional calculations we showed that quantum structures can be generated on a single carbon nanotube by modulating the adsorption of hydrogen atoms. The band gap of the hydrogen-free zone of the tube widens in the adjacent hydrogen covered zone. The sudden variation of the band gap leads to band offsets at the conduction- and valence-band edges. At the end, the band gap of the whole system is modulated along the axis of the tube, which generates quantum wells or quantum dots. Specific electronic states are confined in these quantum wells. The type and radius of the nanotube and the extent and sequence of hydrogen-free and hydrogen-covered zones can provide several options to design a desired optoelectronic nanodevice.en_US
dc.language.isoEnglishen_US
dc.source.titlePhysical Review B - Condensed Matter and Materials Physicsen_US
dc.subjectCarbonen_US
dc.subjectHydrogenen_US
dc.subjectAdsorptionen_US
dc.subjectArticleen_US
dc.subjectCalculationen_US
dc.subjectElectronicsen_US
dc.subjectEnergyen_US
dc.subjectHydrogenationen_US
dc.subjectModelen_US
dc.subjectNanotechnologyen_US
dc.subjectNanotubeen_US
dc.subjectQuantum doten_US
dc.subjectQuantum mechanicsen_US
dc.subjectQuantum structureen_US
dc.subjectQuantum wellen_US
dc.subjectSingle wall carbon nanotubeen_US
dc.titleFormation of quantum structures on a single nanotube by modulating hydrogen adsorptionen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.spage1154191en_US
dc.citation.epage1154196en_US
dc.citation.volumeNumber68en_US
dc.citation.issueNumber11en_US
dc.publisherAmerican Physical Societyen_US


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