Synthesis of Graphene Nanoribbons Encapsulated in Single-Walled Carbon Nanotubes
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
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.
graphene carbon nanotubes
Research subject Physics Of Matter
IdentifiersURN: urn:nbn:se:umu:diva-48348DOI: 10.1021/nl2024678OAI: oai:DiVA.org:umu-48348DiVA: diva2:448793