About: Quantum confinement in MOVPE-grown structures with self-assembled InAs/GaAs quantum dots

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report on low-temperature, micro-photoluminescence study of quantum confinement in MOVPE-grown structures with InAs/GaAs quantum dots (QDs) with GaAs and/or strain reducing InGaAs/GaAs capping. We focus our attention on sharp emission lines, which appear in both structures at energies up to 80 meV below the wetting line emission. Power-dependent measurements confirmed their attribution to single excitons as well as biexcitons. Negative binding energy of biexcitons with systematic dependence on their energy was observed. It has been proposed that the investigated emission lines result from radiative recombination in flat non-fully developed QDs in the investigated structure. The attribution is confirmed by transmission electron microscopic analysis of investigated structures. We report on low-temperature, micro-photoluminescence study of quantum confinement in MOVPE-grown structures with InAs/GaAs quantum dots (QDs) with GaAs and/or strain reducing InGaAs/GaAs capping. We focus our attention on sharp emission lines, which appear in both structures at energies up to 80 meV below the wetting line emission. Power-dependent measurements confirmed their attribution to single excitons as well as biexcitons. Negative binding energy of biexcitons with systematic dependence on their energy was observed. It has been proposed that the investigated emission lines result from radiative recombination in flat non-fully developed QDs in the investigated structure. The attribution is confirmed by transmission electron microscopic analysis of investigated structures. (en)
Title	Quantum confinement in MOVPE-grown structures with self-assembled InAs/GaAs quantum dots Quantum confinement in MOVPE-grown structures with self-assembled InAs/GaAs quantum dots (en)
skos:prefLabel	Quantum confinement in MOVPE-grown structures with self-assembled InAs/GaAs quantum dots Quantum confinement in MOVPE-grown structures with self-assembled InAs/GaAs quantum dots (en)
skos:notation	RIV/68378271:_____/10:00383781!RIV13-GA0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/09/0676), P(GAP102/10/1201), Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Pangrác, Jiří Výborný, Zdeněk Kuldová, Karla Oswald, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	283645
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/10:00383781
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photoluminescence; InAs/GaAs; quantum dots (en)
http://linked.open.../riv/klicoveSlovo	InAs/GaAs photoluminescence quantum dots
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[25DBD7945DA4]
http://linked.open...i/riv/nazevZdroje	Journal of Physics: Conference Series
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Impact of capping layers on electronic states in quantum dots Quantum dots for detectors and other devices
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	245
http://linked.open...iv/tvurceVysledku	Pangrác, Jiří Výborný, Zdeněk Kuldová, Karla Oswald, Jiří Babinski, A. Borysiuk, J. Molas, M.
http://linked.open...ain/vavai/riv/wos	000294907400079
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films
issn	1742-6588
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1742-6596/245/1/012079
is http://linked.open...avai/riv/vysledek of	Quantum confinement in MOVPE-grown structures with self-assembled InAs/GaAs quantum dots

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