Analysis of charge transfer for in situ li intercalated carbon nanotubes

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dc.citation.epage11369en_US
dc.citation.issueNumber20en_US
dc.citation.spage11364en_US
dc.citation.volumeNumber116en_US
dc.contributor.authorRana, K.en_US
dc.contributor.authorKucukayan-Dogu, G.en_US
dc.contributor.authorSen, H. S.en_US
dc.contributor.authorBoothroyd, C.en_US
dc.contributor.authorGulseren, O.en_US
dc.contributor.authorBengu, E.en_US
dc.date.accessioned2016-02-08T09:46:42Z
dc.date.available2016-02-08T09:46:42Z
dc.date.issued2012en_US
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractVertically aligned carbon nanotube (VA-CNT) arrays have been synthesized with lithium (Li) intercalation through an alcohol-catalyzed chemical vapor deposition technique by using a Li-containing catalyst. Scanning electron microscopy images display that synthesized carbon nanotubes (CNTs) are dense and vertically aligned. The effect of the Li-containing catalyst on VA-CNTs has been studied by using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron energy loss spectroscopy (EELS). XPS results show the change in binding energy of Li 1s and C 1s peaks, which indicates that Li is inserted in VA-CNTs during growth. Analysis of Raman spectra reveals that the G-band profile of CNTs synthesized with the Li-containing catalyst is shifted, suggesting an electronic interaction between Li and neighboring C atoms of the CNTs. The EELS spectra of the C K edge and Li K edge from CNTs also confirmed that Li is inserted into CNTs during synthesis. We have performed ab inito calculations based on density functional theory for a further understanding of the structural and electronic properties of Li intercalated CNTs, especially addressing the controversial charge-transfer state between Li and C.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T09:46:42Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2012en
dc.identifier.doi10.1021/jp301369uen_US
dc.identifier.eissn1932-7455
dc.identifier.issn1932-7447
dc.identifier.urihttp://hdl.handle.net/11693/21465
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/jp301369uen_US
dc.source.titleJournal of Physical Chemistry Cen_US
dc.titleAnalysis of charge transfer for in situ li intercalated carbon nanotubesen_US
dc.typeArticleen_US

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