Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy

Electronic and optical properties of InAs/GaAs nanostructures grown by the droplet epitaxy method are studied. Carrier states were determined by k·p theory including effects of strain and In gradient concentration for a model geometry. Wavefunctions are highly localized in the dots. Coulomb and exch...

Descripción completa

Detalles Bibliográficos
Autores principales: Linares-García, Gabriel, Meza-Montes, Lilia, Stinaff, Eric, Alsolamy, S. M., Ware, M. E., Mazur, Y. I., Wang, Z. M., Lee, Jihoon, Salamo, G. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4920786/
https://www.ncbi.nlm.nih.gov/pubmed/27342603
http://dx.doi.org/10.1186/s11671-016-1518-2
_version_ 1782439436285378560
author Linares-García, Gabriel
Meza-Montes, Lilia
Stinaff, Eric
Alsolamy, S. M.
Ware, M. E.
Mazur, Y. I.
Wang, Z. M.
Lee, Jihoon
Salamo, G. J.
author_facet Linares-García, Gabriel
Meza-Montes, Lilia
Stinaff, Eric
Alsolamy, S. M.
Ware, M. E.
Mazur, Y. I.
Wang, Z. M.
Lee, Jihoon
Salamo, G. J.
author_sort Linares-García, Gabriel
collection PubMed
description Electronic and optical properties of InAs/GaAs nanostructures grown by the droplet epitaxy method are studied. Carrier states were determined by k·p theory including effects of strain and In gradient concentration for a model geometry. Wavefunctions are highly localized in the dots. Coulomb and exchange interactions are studied and we found the system is in the strong confinement regime. Microphotoluminescence spectra and lifetimes were calculated and compared with measurements performed on a set of quantum rings in a single sample. Some features of spectra are in good agreement. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s11671-016-1518-2) contains supplementary material, which is available to authorized users.
format Online
Article
Text
id pubmed-4920786
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher Springer US
record_format MEDLINE/PubMed
spelling pubmed-49207862016-07-06 Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy Linares-García, Gabriel Meza-Montes, Lilia Stinaff, Eric Alsolamy, S. M. Ware, M. E. Mazur, Y. I. Wang, Z. M. Lee, Jihoon Salamo, G. J. Nanoscale Res Lett Nano Express Electronic and optical properties of InAs/GaAs nanostructures grown by the droplet epitaxy method are studied. Carrier states were determined by k·p theory including effects of strain and In gradient concentration for a model geometry. Wavefunctions are highly localized in the dots. Coulomb and exchange interactions are studied and we found the system is in the strong confinement regime. Microphotoluminescence spectra and lifetimes were calculated and compared with measurements performed on a set of quantum rings in a single sample. Some features of spectra are in good agreement. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s11671-016-1518-2) contains supplementary material, which is available to authorized users. Springer US 2016-06-24 /pmc/articles/PMC4920786/ /pubmed/27342603 http://dx.doi.org/10.1186/s11671-016-1518-2 Text en © The Author(s) 2016 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License(http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.
spellingShingle Nano Express
Linares-García, Gabriel
Meza-Montes, Lilia
Stinaff, Eric
Alsolamy, S. M.
Ware, M. E.
Mazur, Y. I.
Wang, Z. M.
Lee, Jihoon
Salamo, G. J.
Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy
title Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy
title_full Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy
title_fullStr Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy
title_full_unstemmed Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy
title_short Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy
title_sort optical properties of a quantum dot-ring system grown using droplet epitaxy
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4920786/
https://www.ncbi.nlm.nih.gov/pubmed/27342603
http://dx.doi.org/10.1186/s11671-016-1518-2
work_keys_str_mv AT linaresgarciagabriel opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT mezamonteslilia opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT stinafferic opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT alsolamysm opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT wareme opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT mazuryi opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT wangzm opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT leejihoon opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy
AT salamogj opticalpropertiesofaquantumdotringsystemgrownusingdropletepitaxy

Ejemplares similares