Confined linear carbon chains as a route to bulk carbyne

Author(s)
Lei Shi, Philip Rohringer, Kazu Suenaga, Yoshiko Niimi, Jani Kotakoski, Jannik C. Meyer, Herwig Peterlik, Marius Wanko, Seymur Cahangirov, Angel Rubio, Zachary J. Lapin, Lukas Novotny, Paola Ayala, Thomas Pichler
Abstract

Strong chemical activity and extreme instability in ambient conditions characterize carbyne, an infinite sp(1) hybridized carbon chain. As a result, much less has been explored about carbyne as compared to other carbon allotropes such as fullerenes, nanotubes and graphene. Although end-capping groups can be used to stabilize carbon chains, length limitations are still a barrier for production, and even more so for application. We report a method for the bulk production of long acetylenic linear carbon chains protected by thin double-walled carbon nanotubes. The synthesis of very long arrangements is confirmed by a combination of transmission electron microscopy, X-ray diffraction and (near-field) resonance Raman spectroscopy. Our results establish a route for the bulk production of exceptionally long and stable chains composed of more than 6,000 carbon atoms, representing an elegant forerunner towards the final goal of carbyne's bulk production.

Organisation(s)
Electronic Properties of Materials, Physics of Nanostructured Materials, Dynamics of Condensed Systems, Faculty Center for Nano Structure Research
Journal
Nature Materials
Volume
15
Pages
634-639
ISSN
1476-1122
Publication date
06-2016
Publication status
Published
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics
Keywords
TOTAL-ENERGY CALCULATIONS, WAVE BASIS-SET, RAMAN-SPECTROSCOPY, ALLOTROPE CARBYNE, GRAPHITIC CARBON, OPTICAL PHONONS, SCALING SCHEME, NANOTUBES, SCATTERING, POLYYNE
Electronic versions
https://arxiv.org/abs/1507.04896
Portal url
https://ucris.univie.ac.at/portal/en/publications/confined-linear-carbon-chains-as-a-route-to-bulk-carbyne(ab4a45b1-a0fd-4166-afb2-9ed55ea85557).html