About: Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report on photoluminescence of a series of vertically stacked multilayer quantum dot structures. Our analysis of the data taken at different excitation powers and in the magnetic field up to 24T yields a useful insight into the electronic structure of the InAs/GaAs quantum dot structures. The data are compared with results of model electronic structure calculations for flat dots, including the effects of the strain field. The calculations suggest that the difference between the energies of the ground and first excited transitions is mainly determined by the lateral dimensions of the dots. A comparison of the experimental results with the theoretical ones reveals an increase of the dot dimensions (both height and diameter) and a decrease of the aspect ratio (height/diameter) with increasing number of the quantum dot layers. For seven layer samples, the wavelength of 1:3 mm has been achieved. We report on photoluminescence of a series of vertically stacked multilayer quantum dot structures. Our analysis of the data taken at different excitation powers and in the magnetic field up to 24T yields a useful insight into the electronic structure of the InAs/GaAs quantum dot structures. The data are compared with results of model electronic structure calculations for flat dots, including the effects of the strain field. The calculations suggest that the difference between the energies of the ground and first excited transitions is mainly determined by the lateral dimensions of the dots. A comparison of the experimental results with the theoretical ones reveals an increase of the dot dimensions (both height and diameter) and a decrease of the aspect ratio (height/diameter) with increasing number of the quantum dot layers. For seven layer samples, the wavelength of 1:3 mm has been achieved. (en)
Title	Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures (en)
skos:prefLabel	Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures (en)
skos:notation	RIV/00216224:14310/07:00021888!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021622410)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Křápek, Vlastimil Humlíček, Josef
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	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	441258
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/07:00021888
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	self-assembled quantum dots; photoluminescence; magnetophotoluminescence (en)
http://linked.open.../riv/klicoveSlovo	photoluminescence self-assembled quantum dots magnetophotoluminescence
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[BAE2F700184A]
http://linked.open...i/riv/nazevZdroje	Physica E
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	Křápek, Vlastimil Humlíček, Josef Hospodková, Alice Kuldová, Karla
http://linked.open...n/vavai/riv/zamer	Physical and chemical properties of advanced materials and structures
issn	1386-9477
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	14310
is http://linked.open...avai/riv/vysledek of	Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures Photoluminescence and magnetophotoluminescence of vertically stacked InAs/GaAs quantum dot structures

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