Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL

Transmission electron microscopy (TEM), atomic force microscopy (AFM) and photoluminescence (PL) with and without additional magnetic fields (magneto-PL) were employed to study metal organic vapour phase epitaxy (MOVPE) grown, self-assembled InSb rich quantum dots (QDs) embedded in InAs and GaSb mat...

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Main Authors: Mock, P, Booker, G, Alphandery, E, Nicholas, R, Mason, N
Format: Conference item
Published: 1999
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author Mock, P
Booker, G
Alphandery, E
Nicholas, R
Mason, N
author_facet Mock, P
Booker, G
Alphandery, E
Nicholas, R
Mason, N
author_sort Mock, P
collection OXFORD
description Transmission electron microscopy (TEM), atomic force microscopy (AFM) and photoluminescence (PL) with and without additional magnetic fields (magneto-PL) were employed to study metal organic vapour phase epitaxy (MOVPE) grown, self-assembled InSb rich quantum dots (QDs) embedded in InAs and GaSb matrices. Depending on the growth conditions, coherently strained, partly relaxed, and completely relaxed InSb rich agglomerates were observed by means of TEM; AFM delivered more reliable QD number densities and accurate heights of InSb islands on GaSb. For the case of InSb embedded in GaSb, PL showed QD emission at 1.69 mum and wetting layer (WL) emission at 1.61 mum.
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spelling oxford-uuid:8a5dcbc0-cff8-4331-8e0a-9c0e56537a372022-03-26T22:31:03ZSelf-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PLConference itemhttp://purl.org/coar/resource_type/c_5794uuid:8a5dcbc0-cff8-4331-8e0a-9c0e56537a37Symplectic Elements at Oxford1999Mock, PBooker, GAlphandery, ENicholas, RMason, NTransmission electron microscopy (TEM), atomic force microscopy (AFM) and photoluminescence (PL) with and without additional magnetic fields (magneto-PL) were employed to study metal organic vapour phase epitaxy (MOVPE) grown, self-assembled InSb rich quantum dots (QDs) embedded in InAs and GaSb matrices. Depending on the growth conditions, coherently strained, partly relaxed, and completely relaxed InSb rich agglomerates were observed by means of TEM; AFM delivered more reliable QD number densities and accurate heights of InSb islands on GaSb. For the case of InSb embedded in GaSb, PL showed QD emission at 1.69 mum and wetting layer (WL) emission at 1.61 mum.
spellingShingle Mock, P
Booker, G
Alphandery, E
Nicholas, R
Mason, N
Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL
title Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL
title_full Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL
title_fullStr Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL
title_full_unstemmed Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL
title_short Self-assembled InSb quantum dots in InAs and GaSb matrices assessed by means of TEM, AFM and PL
title_sort self assembled insb quantum dots in inas and gasb matrices assessed by means of tem afm and pl
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