Publication
Title
Well-defined sub-nanometer graphene ribbons synthesized inside carbon nanotubes
Author
Abstract
Graphene nanoribbons with sub-nanometer widths are extremely interesting for nanoscale electronics and devices as they combine the unusual transport properties of graphene with the opening of a band gap due to quantum confinement in the lateral dimension. Strong research efforts are presently paid to grow such nanoribbons. Here we show the synthesis of 6- and 7-armchair graphene nanoribbons, with widths of 0.61 and 0.74 nm, and excitonic gaps of 1.83 and 2.18 eV, by high-temperature vacuum annealing of ferrocene molecules inside single-walled carbon nanotubes. The growth of the so-obtained graphene nanoribbons is evidenced from atomic resolution electron microscopy, while their well-defined structure is identified by a combination of an extensive wavelength-dependent Raman scattering characterization and quantum-chemical calculations. These findings enable a facile and scalable approach leading to the controlled growth and detailed analysis of well-defined sub-nanometer graphene nanoribbons.
Language
English
Source (journal)
Carbon. - Oxford
Publication
Oxford : 2021
ISSN
0008-6223
DOI
10.1016/J.CARBON.2020.08.065
Volume/pages
171 (2021) , p. 221-229
ISI
000598371500025
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
Separation and high-resolution spectroscopic characterisation of carbon nanotubes and nanocomposites.
Nonlinear Optics of Bistable Molecules and One-Dimensional Arrays.
Functional Carbon Nanotube Nanohybrids: from Synthesis to Advanced Spectroscopic Characterization
Carbon nanomaterial enhanced optical fibres for biomedical imaging and sensing (CHARMING).
Functional Hybrids of Carbon Nanotubes
Diameter-dependent phase transitions in one-dimensional arrays of molecules confined inside single-wall carbon nanotubes.
TunabLe pulsed And continuouS-wavE laseR facility (T-LASER).
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier c:irua:171359
Creation 15.09.2020
Last edited 29.11.2024
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