Raman resonance profile of an individual confined long linear carbon chain

Author(s)
Sebastian Heeg, Lei Shi, Thomas Pichler, Lukas Novotny
Abstract

This paper reports tip-enhanced, polarization dependent and excitation energy dependent Raman measurements of an individual long linear carbon chain confined in a double-walled carbon nanotube. We determine the band gap of the chain (2.093 eV) from a Raman resonance profile with a line width
, which corresponds to a lifetime of for the excited state of the chain. In the absence of external perturbations, this suggests that the chain's excited state dynamics depend on the confinement inside the nanotube and therefore on the chirality of the encasing carbon nanotube.

Organisation(s)
Electronic Properties of Materials
Journal
Carbon
Volume
139
Pages
581-585
No. of pages
5
ISSN
0008-6223
DOI
https://doi.org/10.1016/j.carbon.2018.07.007
Publication date
11-2018
Publication status
Published
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/raman-resonance-profile-of-an-individual-confined-long-linear-carbon-chain(ef3081fa-d973-4e50-9f42-e78ce25af564).html