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Hole-related electrical activity of InAs/GaAs quantum dots

Hole-related electrical activity of InAs/GaAs quantum dots
Hole-related electrical activity of InAs/GaAs quantum dots

We present the hole-related electrical activity of the InAs quantum dots embedded in the n-type GaAs. We performed our experiments with the use of the Laplace and conventional deep level transient spectroscopies combined with the above GaAs band-gap illumination. We observed that depending on temperature and electric field the hole emission process is an interplay between the pure thermal emission and tunnelling processes. The tunnelling was quantitatively described by a simple model of the potential barrier.

0587-4246
1201-1206
Kruszewski, P.
9f2a2b76-1463-4fc3-bd93-ade778ba2d9e
Dobaczewski, L.
915df3da-9f4b-43c4-b421-b06788c3d8cf
Markevich, V. P.
2ac6fb99-876c-40aa-afb3-b8a9f1de8898
Mitchell, C.
0e48c936-a405-434d-818a-d83e382aa826
Missous, M.
98ca61fb-84c6-4ec9-9a91-3bfc2cd8dd78
Peaker, A. R.
6752c21c-f359-4df6-99df-ee2eca350ed3
Kruszewski, P.
9f2a2b76-1463-4fc3-bd93-ade778ba2d9e
Dobaczewski, L.
915df3da-9f4b-43c4-b421-b06788c3d8cf
Markevich, V. P.
2ac6fb99-876c-40aa-afb3-b8a9f1de8898
Mitchell, C.
0e48c936-a405-434d-818a-d83e382aa826
Missous, M.
98ca61fb-84c6-4ec9-9a91-3bfc2cd8dd78
Peaker, A. R.
6752c21c-f359-4df6-99df-ee2eca350ed3

Kruszewski, P., Dobaczewski, L., Markevich, V. P., Mitchell, C., Missous, M. and Peaker, A. R. (2008) Hole-related electrical activity of InAs/GaAs quantum dots. Acta Physica Polonica A, 114 (5), 1201-1206. (doi:10.12693/APhysPolA.114.1201).

Record type: Article

Abstract

We present the hole-related electrical activity of the InAs quantum dots embedded in the n-type GaAs. We performed our experiments with the use of the Laplace and conventional deep level transient spectroscopies combined with the above GaAs band-gap illumination. We observed that depending on temperature and electric field the hole emission process is an interplay between the pure thermal emission and tunnelling processes. The tunnelling was quantitatively described by a simple model of the potential barrier.

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More information

Published date: 1 November 2008

Identifiers

Local EPrints ID: 493975
URI: http://eprints.soton.ac.uk/id/eprint/493975
ISSN: 0587-4246
PURE UUID: 259aacd1-08c4-4c83-bc81-4632ba57f5dc
ORCID for C. Mitchell: ORCID iD orcid.org/0000-0001-9773-8842

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Date deposited: 17 Sep 2024 17:17
Last modified: 18 Sep 2024 01:46

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Contributors

Author: P. Kruszewski
Author: L. Dobaczewski
Author: V. P. Markevich
Author: C. Mitchell ORCID iD
Author: M. Missous
Author: A. R. Peaker

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