Journal article
Exciton dynamics in monolayer graphene grown on a Cu(111) surface
- Abstract:
- We have characterized the carrier dynamics of the excitonic emission emerging from a monolayer of graphene grown on a Cu(111) surface. Excitonic emission from the graphene, with strong and sharp peaks both with a full-width at half-maximum of 2.7 meV, was observed near ~3.16 and ~3.18 eV at 4.2 K. The carrier recombination parameters were studied by measuring both temperature-dependent and time-resolved photoluminescence. The intensity variation with temperature of these two peaks shows an opposing trend. The time-resolved emission was modelled using coupled differential equations and the decay time was found to be dominated by carrier trapping and Auger recombination as the temperature increased.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Supplementary materials, 580.9KB, Terms of use)
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- Publisher copy:
- 10.1038/s41699-021-00252-x
Authors
- Publisher:
- Springer Nature
- Journal:
- npj 2D Materials and Applications More from this journal
- Volume:
- 5
- Issue:
- 1
- Article number:
- 69
- Publication date:
- 2021-07-29
- Acceptance date:
- 2021-07-01
- DOI:
- EISSN:
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2397-7132
- Language:
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English
- Keywords:
- Pubs id:
-
1184553
- Local pid:
-
pubs:1184553
- Deposit date:
-
2021-07-01
Terms of use
- Copyright holder:
- Park et al.
- Copyright date:
- 2021
- Rights statement:
- © The Authors 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Licence:
- CC Attribution (CC BY)
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