Determination of helicities in unidirectional assemblies of graphitic or graphiticlike tubular structures

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2008
Major/Subject
Mcode
Degree programme
Language
en
Pages
141903/1-3
Series
Applied Physics Letters, Volume 93, Issue 14
Abstract
Here we propose a universal method for the determination of all helicities present in unidirectional assemblies of hexagon-based graphitic or graphiticlike tubular structures, e.g., multiwalled or bundled carbon nanotubes(CNTs) or boron-nitride nanotubes and their structural analogs. A critical dimension characteristic of a fundamental structural property, i.e., the atomic bond length, is discerned from electron diffraction patterns by which all helicities present in the assemblies are identified. Using this method, we determine the helicity population in a single-walled CNT sample produced by laser ablation technique.
Description
Keywords
helicities, carbon nanotubes, electron diffraction
Other note
Citation
Jiang, H. & Brown, D. P. & Nikolaev, P. & Nasibulin, A. G. & Kauppinen, Esko I. 2008. Determination of helicities in unidirectional assemblies of graphitic or graphiticlike tubular structures. Applied Physics Letters. Volume 93, Issue 14. 141903/1-3. ISSN 0003-6951 (printed). DOI: 10.1063/1.2993217