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Synthesis of Graphene Nanoribbons Encapsulated in Single-Walled Carbon Nanotubes
Umeå University, Faculty of Science and Technology, Department of Physics.
Aalto University.
Aalto University.
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2011 (English)In: Nano letters (Print), ISSN 1530-6984, E-ISSN 1530-6992, Vol. 11, no 10, 4352-4356 p.Article in journal (Refereed) Published
Abstract [en]

A novel material, graphene nanoribbons encapsulated in single-walled carbon nanotubes (GNR@SWNT), was synthesized using confined polymerization and fusion of polycyclic aromatic hydrocarbon (PAH) molecules. Formation of the GNR is possible due to confinement effects provided by the one-dimensional space inside nanotubes, which helps to align coronene or perylene molecules edge to edge to achieve dimerization and oligomerization of the molecules into long nanoribbons. Almost 100% filling of SWNT with GNR is achieved while nanoribbon length is limited only by the length of the encapsulating nanotube. The PAH fusion reaction provides a very simple and easily scalable method to synthesize GNR@SWNT in macroscopic amounts. First-principle simulations indicate that encapsulation of the GNRs is energetically favorable and that the electronic structure of the encapsulated GNRs is the same as for the free-standing ones, pointing to possible applications of the GNR@SWNT structures in photonics and nanoelectronics.

Place, publisher, year, edition, pages
2011. Vol. 11, no 10, 4352-4356 p.
Keyword [en]
graphene carbon nanotubes
National Category
Natural Sciences
Research subject
Physics Of Matter
URN: urn:nbn:se:umu:diva-48348DOI: 10.1021/nl2024678OAI: diva2:448793
Available from: 2011-10-18 Created: 2011-10-18 Last updated: 2011-11-14Bibliographically approved

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Talyzin, Alexandr
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