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Article: Graphene nanoribbons from unzipped carbon nanotubes: Atomic structures, Raman spectroscopy, and electrical properties

TitleGraphene nanoribbons from unzipped carbon nanotubes: Atomic structures, Raman spectroscopy, and electrical properties
Authors
Issue Date2011
Citation
Journal of the American Chemical Society, 2011, v. 133, n. 27, p. 10394-10397 How to Cite?
AbstractWe investigated the atomic structures, Raman spectroscopic and electrical transport properties of individual graphene nanoribbons (GNRs, widths ∼10-30 nm) derived from sonochemical unzipping of multiwalled carbon nanotubes (MWNTs). Aberration-corrected transmission electron microscopy (TEM) revealed a high percentage of two-layer (2 L) GNRs and some single-layer ribbons. The layer-layer stacking angles ranged from 0° to 30° including average chiral angles near 30° (armchair orientation) or 0° (zigzag orientation). A large fraction of GNRs with bent and smooth edges was observed, while the rest showed flat and less smooth edges (roughness 1nm). Polarized Raman spectroscopy probed individual GNRs to reveal D/G ratios and ratios of D band intensities at parallel and perpendicular laser excitation polarization (D∥/D⊥). The observed spectroscopic trends were used to infer the average chiral angles and edge smoothness of GNRs. Electrical transport and Raman measurements were carried out for individual ribbons to correlate spectroscopic and electrical properties of GNRs. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/334248
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorXie, Liming-
dc.contributor.authorWang, Hailiang-
dc.contributor.authorJin, Chuanhong-
dc.contributor.authorWang, Xinran-
dc.contributor.authorJiao, Liying-
dc.contributor.authorSuenaga, Kazu-
dc.contributor.authorDai, Hongjie-
dc.date.accessioned2023-10-20T06:46:47Z-
dc.date.available2023-10-20T06:46:47Z-
dc.date.issued2011-
dc.identifier.citationJournal of the American Chemical Society, 2011, v. 133, n. 27, p. 10394-10397-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/334248-
dc.description.abstractWe investigated the atomic structures, Raman spectroscopic and electrical transport properties of individual graphene nanoribbons (GNRs, widths ∼10-30 nm) derived from sonochemical unzipping of multiwalled carbon nanotubes (MWNTs). Aberration-corrected transmission electron microscopy (TEM) revealed a high percentage of two-layer (2 L) GNRs and some single-layer ribbons. The layer-layer stacking angles ranged from 0° to 30° including average chiral angles near 30° (armchair orientation) or 0° (zigzag orientation). A large fraction of GNRs with bent and smooth edges was observed, while the rest showed flat and less smooth edges (roughness 1nm). Polarized Raman spectroscopy probed individual GNRs to reveal D/G ratios and ratios of D band intensities at parallel and perpendicular laser excitation polarization (D∥/D⊥). The observed spectroscopic trends were used to infer the average chiral angles and edge smoothness of GNRs. Electrical transport and Raman measurements were carried out for individual ribbons to correlate spectroscopic and electrical properties of GNRs. © 2011 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleGraphene nanoribbons from unzipped carbon nanotubes: Atomic structures, Raman spectroscopy, and electrical properties-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ja203860a-
dc.identifier.scopuseid_2-s2.0-79960068938-
dc.identifier.volume133-
dc.identifier.issue27-
dc.identifier.spage10394-
dc.identifier.epage10397-
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000293149800019-

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