Exciton radiative lifetime in a monoatomic carbon chain
Exciton radiative lifetime in a monoatomic carbon chain
Linear carbon-based materials such as polyyne and cumulene oligomers provide a versatile platform for nano-physics and engineering. Direct gap quasi-1D polyyne structures are promising for the observation of strong and unusual excitonic effects arising due to the two-dimensional quantum confinement. Recently, we reported on the observation of sharp exciton peaks in low temperature photoluminescence spectra of polyyne chains (Kutrovskaya S et al 2020 Nano Lett.20 6502–9). Here, we analyze the time-resolved optical response of this system. We extend the non-local dielectric response theory to predict the exciton radiative lifetime dependence on the band-gap value and on the length of the chain. A good agreement between the experiment and the theory is achieved.
1-6
Kutrovskaya, Stella
9e8c7814-5e2f-4d3b-9e06-2101399988c9
Demirchyan, Sevak
7411fbe4-448b-4430-960c-0ae0eabeba09
Osipov, A
0603f893-8e7a-410f-abed-8ee93e054ac7
Baryshev, Stepan
1860e30e-ce44-46d5-a210-1c8635e58633
Zasedatelev, Anton
b8f8265a-58a1-48c8-abf5-68e4e6ef8f70
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Kavokin, Alexey
70ffda66-cfab-4365-b2db-c15e4fa1116b
9 March 2021
Kutrovskaya, Stella
9e8c7814-5e2f-4d3b-9e06-2101399988c9
Demirchyan, Sevak
7411fbe4-448b-4430-960c-0ae0eabeba09
Osipov, A
0603f893-8e7a-410f-abed-8ee93e054ac7
Baryshev, Stepan
1860e30e-ce44-46d5-a210-1c8635e58633
Zasedatelev, Anton
b8f8265a-58a1-48c8-abf5-68e4e6ef8f70
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Kavokin, Alexey
70ffda66-cfab-4365-b2db-c15e4fa1116b
Kutrovskaya, Stella, Demirchyan, Sevak, Osipov, A, Baryshev, Stepan, Zasedatelev, Anton, Lagoudakis, Pavlos and Kavokin, Alexey
(2021)
Exciton radiative lifetime in a monoatomic carbon chain.
New Journal of Physics, 23, , [033007].
(doi:10.1088/1367-2630/abe505).
Abstract
Linear carbon-based materials such as polyyne and cumulene oligomers provide a versatile platform for nano-physics and engineering. Direct gap quasi-1D polyyne structures are promising for the observation of strong and unusual excitonic effects arising due to the two-dimensional quantum confinement. Recently, we reported on the observation of sharp exciton peaks in low temperature photoluminescence spectra of polyyne chains (Kutrovskaya S et al 2020 Nano Lett.20 6502–9). Here, we analyze the time-resolved optical response of this system. We extend the non-local dielectric response theory to predict the exciton radiative lifetime dependence on the band-gap value and on the length of the chain. A good agreement between the experiment and the theory is achieved.
This record has no associated files available for download.
More information
Accepted/In Press date: 10 February 2021
Published date: 9 March 2021
Identifiers
Local EPrints ID: 456179
URI: http://eprints.soton.ac.uk/id/eprint/456179
ISSN: 1367-2630
PURE UUID: fdbe8785-77e1-42d8-813e-c27cfba993bd
Catalogue record
Date deposited: 26 Apr 2022 15:23
Last modified: 16 Mar 2024 16:32
Export record
Altmetrics
Contributors
Author:
Stella Kutrovskaya
Author:
Sevak Demirchyan
Author:
A Osipov
Author:
Stepan Baryshev
Author:
Pavlos Lagoudakis
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics