Marzaini Rashid
Surface-state dependent optical properties of OH-, F-, and H-terminated 4H-SiC quantum dots
Rashid, Marzaini; Tiwari, Amit K.; Goss, J.P.; Rayson, M.J.; Briddon, P.R.; Horsfall, A.B.
Authors
Amit K. Tiwari
J.P. Goss
M.J. Rayson
P.R. Briddon
Professor Alton Horsfall alton.b.horsfall@durham.ac.uk
Professor
Abstract
Density functional calculations are performed for OH-, F- and H-terminated 4H-SiC 10–20 Å diameter clusters to investigate the effect of surface species upon the optical absorption properties. H-termination results in a pronounced size-dependent quantum-confinement in the absorption, whereas F- and OH-terminations exhibit much reduced size dependent absorption due to surface states. Our findings are in good agreement with recent experimental studies, and are able to explain the little explored dual-feature photoluminescence spectra of SiC quantum dots. We propose that along with controlling the size, suitable surface termination is the key for optimizing optical properties of 4H-SiC quantum structures, such as might be exploited in optoelectronics, photovoltaics and biological applications.
Citation
Rashid, M., Tiwari, A. K., Goss, J., Rayson, M., Briddon, P., & Horsfall, A. (2016). Surface-state dependent optical properties of OH-, F-, and H-terminated 4H-SiC quantum dots. Physical Chemistry Chemical Physics, 18(31), Article 21676. https://doi.org/10.1039/c6cp03775e
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 11, 2016 |
Online Publication Date | Jul 14, 2016 |
Publication Date | 2016-08 |
Deposit Date | Oct 1, 2018 |
Journal | Physical Chemistry Chemical Physics |
Print ISSN | 1463-9076 |
Electronic ISSN | 1463-9084 |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 18 |
Issue | 31 |
Article Number | 21676 |
DOI | https://doi.org/10.1039/c6cp03775e |
Public URL | https://durham-repository.worktribe.com/output/1318239 |
You might also like
Single event burnout sensitivity of SiC and Si
(2022)
Journal Article
Pore Wall Thinning of Mesoporous 4H-SiC by Sacrificial Oxidation
(2018)
Journal Article
Assignment of 13C hyperfine interactions in the P1-center in diamond
(2016)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search