Carrier dynamics in red-emitting self-organised InAs-AlGaAs quantum dots with indirect barriers

A. F.G. Monte; J. J. Finley; A. Ashmore; A. M. Fox; M. S. Skolnick; D. J. Mowbray; M. Hopkins

doi:10.1016/S1386-9477(02)00723-3

Carrier dynamics in red-emitting self-organised InAs-AlGaAs quantum dots with indirect barriers

A. F.G. Monte
, J. J. Finley
, A. Ashmore
, A. M. Fox
, M. S. Skolnick
, D. J. Mowbray
, M. Hopkins

University of Sheffield

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

We report the results of time-resolved photoluminescence (TR-PL) spectroscopy on self-organised InAs-Al_0.6Ga_0.4As quantum dots with indirect barriers. The TR measurements confirm that carriers excited in Al_0.6Ga_0.4As barriers are captured by the dots on the time scale of 45-60 ps despite the indirect nature of the barriers. The dynamics of the PL decay time are consistent with a carrier hopping process between dots.

Original language	English
Pages (from-to)	109-110
Number of pages	2
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	17
Issue number	1-4
DOIs	https://doi.org/10.1016/S1386-9477(02)00723-3
State	Published - Apr 2003
Externally published	Yes
Event	Proceedings pf the International Conference on Superlattices - ICSNN 2002 - Touluse, France Duration: 22 Jul 2002 → 26 Jul 2002

Keywords

Hopping process
InAs-AlGaAs quantum dots
Time-resolved photoluminescence

Access to Document

10.1016/S1386-9477(02)00723-3

Cite this

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title = "Carrier dynamics in red-emitting self-organised InAs-AlGaAs quantum dots with indirect barriers",

abstract = "We report the results of time-resolved photoluminescence (TR-PL) spectroscopy on self-organised InAs-Al0.6Ga0.4As quantum dots with indirect barriers. The TR measurements confirm that carriers excited in Al0.6Ga0.4As barriers are captured by the dots on the time scale of 45-60 ps despite the indirect nature of the barriers. The dynamics of the PL decay time are consistent with a carrier hopping process between dots.",

keywords = "Hopping process, InAs-AlGaAs quantum dots, Time-resolved photoluminescence",

author = "Monte, \{A. F.G.\} and Finley, \{J. J.\} and A. Ashmore and Fox, \{A. M.\} and Skolnick, \{M. S.\} and Mowbray, \{D. J.\} and M. Hopkins",

note = "Funding Information: This work has been supported by EPSRC via Grants GR/N20997 and GR/N23516. A.F.G. Monte acknowledges the receipt of a fellowship from CNPq-Brazil.; Proceedings pf the International Conference on Superlattices - ICSNN 2002 ; Conference date: 22-07-2002 Through 26-07-2002",

year = "2003",

month = apr,

doi = "10.1016/S1386-9477(02)00723-3",

language = "English",

volume = "17",

pages = "109--110",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier B.V.",

number = "1-4",

}

TY - JOUR

T1 - Carrier dynamics in red-emitting self-organised InAs-AlGaAs quantum dots with indirect barriers

AU - Monte, A. F.G.

AU - Finley, J. J.

AU - Ashmore, A.

AU - Fox, A. M.

AU - Skolnick, M. S.

AU - Mowbray, D. J.

AU - Hopkins, M.

N1 - Funding Information: This work has been supported by EPSRC via Grants GR/N20997 and GR/N23516. A.F.G. Monte acknowledges the receipt of a fellowship from CNPq-Brazil.

PY - 2003/4

Y1 - 2003/4

N2 - We report the results of time-resolved photoluminescence (TR-PL) spectroscopy on self-organised InAs-Al0.6Ga0.4As quantum dots with indirect barriers. The TR measurements confirm that carriers excited in Al0.6Ga0.4As barriers are captured by the dots on the time scale of 45-60 ps despite the indirect nature of the barriers. The dynamics of the PL decay time are consistent with a carrier hopping process between dots.

AB - We report the results of time-resolved photoluminescence (TR-PL) spectroscopy on self-organised InAs-Al0.6Ga0.4As quantum dots with indirect barriers. The TR measurements confirm that carriers excited in Al0.6Ga0.4As barriers are captured by the dots on the time scale of 45-60 ps despite the indirect nature of the barriers. The dynamics of the PL decay time are consistent with a carrier hopping process between dots.

KW - Hopping process

KW - InAs-AlGaAs quantum dots

KW - Time-resolved photoluminescence

UR - https://www.scopus.com/pages/publications/0037394976

U2 - 10.1016/S1386-9477(02)00723-3

DO - 10.1016/S1386-9477(02)00723-3

M3 - Conference article

AN - SCOPUS:0037394976

SN - 1386-9477

VL - 17

SP - 109

EP - 110

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-4

T2 - Proceedings pf the International Conference on Superlattices - ICSNN 2002

Y2 - 22 July 2002 through 26 July 2002

ER -

Carrier dynamics in red-emitting self-organised InAs-AlGaAs quantum dots with indirect barriers

Abstract

Keywords

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