About: Ultrafast photoluminescence of nanocrystalline diamond films

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The nanodiamond samples were prepared by microwave plasma enhanced CVD technique. Photoluminescence with very fast non-exponential decay with the effective time of about 1 ps was observed in the investigated spectral interval 1.8-2.8 eV. The decay was spectrally dependent being faster at higher photon energies. We have found that the hotoluminescence dynamics are affected by temperature and ambient pressure. We interpret the photoluminescence dynamics in terms of charge-carrier relaxation via the continuum of the nanocrystal surface-related energy states lying energetically below the diamond band-gap energy. The results can be explained by the spectral dependence of the density of these states and its changes due to ambient conditions. The nanodiamond samples were prepared by microwave plasma enhanced CVD technique. Photoluminescence with very fast non-exponential decay with the effective time of about 1 ps was observed in the investigated spectral interval 1.8-2.8 eV. The decay was spectrally dependent being faster at higher photon energies. We have found that the hotoluminescence dynamics are affected by temperature and ambient pressure. We interpret the photoluminescence dynamics in terms of charge-carrier relaxation via the continuum of the nanocrystal surface-related energy states lying energetically below the diamond band-gap energy. The results can be explained by the spectral dependence of the density of these states and its changes due to ambient conditions. (en)
Title	Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films (en)
skos:prefLabel	Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films (en)
skos:notation	RIV/68378271:_____/08:00320616!RIV10-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GD202/05/H003), P(KAN400100701), Z(AV0Z10100521), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kromka, Alexander Rezek, Bohuslav
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	401299
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/08:00320616
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nanocrystalline diamonde films; ultrafast photoluminescence (en)
http://linked.open.../riv/klicoveSlovo	ultrafast photoluminescence nanocrystalline diamonde films
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[60686A2C5CB9]
http://linked.open...i/riv/nazevZdroje	Physica Status Solidi. A
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Functional hybrid nanosystems of semiconductors and metals with organic materials (FUNS) Physics of complex condensed systems
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	205
http://linked.open...iv/tvurceVysledku	Kromka, Alexander Malý, P. Rezek, Bohuslav Preclíková, J. Trojánek, F. Dzurňák, B.
http://linked.open...ain/vavai/riv/wos	000259653700010
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films Condensed Matter Physics – New Materials and Technologies
issn	1862-6300
number of pages	4 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films Ultrafast photoluminescence of nanocrystalline diamond films

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