About: Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report on ultrafast charge carrier dynamics in sub-band-gap energy states in nanocrystalline diamond self-supporting membranes prepared by plasma-enhanced chemical vapor deposition technique. Results of the femtosecond transient transmission and photoluminescence laser spectroscopy indicate relaxation of photoexcited carriers with the time constants of the order of 1 ps. This is attributed to an ultrafast spatial separation of holes and electrons at the surface of nanocrystals. Only the carrier population photoexcited in energy levels of 1.68 eV silicon related center decays on a much longer time scale with the time constant of 2.4 ns. We report on ultrafast charge carrier dynamics in sub-band-gap energy states in nanocrystalline diamond self-supporting membranes prepared by plasma-enhanced chemical vapor deposition technique. Results of the femtosecond transient transmission and photoluminescence laser spectroscopy indicate relaxation of photoexcited carriers with the time constants of the order of 1 ps. This is attributed to an ultrafast spatial separation of holes and electrons at the surface of nanocrystals. Only the carrier population photoexcited in energy levels of 1.68 eV silicon related center decays on a much longer time scale with the time constant of 2.4 ns. (en) Ultra-rychlá detekce procesů nosičů náboje v mezi-energetických stavech valenčního pásma byly studovány na nanokrystalických diamantech deponovaných chemickou depozicí z par. (cs)
Title	Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond Ultra-rychlá detekce procesů foto-excitovaných nosičů náboja v nanokrystalickém diamantu (cs) Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond (en)
skos:prefLabel	Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond Ultra-rychlá detekce procesů foto-excitovaných nosičů náboja v nanokrystalickém diamantu (cs) Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond (en)
skos:notation	RIV/68378271:_____/08:00319856!RIV09-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN400100652), P(KAN400100701), Z(AV0Z10100521), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2009
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	401298
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/08:00319856
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	femtosecond transient transmission; photoluminescence laser spectroscopy; nanocrystalline diamond (en)
http://linked.open.../riv/klicoveSlovo	femtosecond transient transmission photoluminescence laser spectroscopy nanocrystalline diamond
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[84B894E8D155]
http://linked.open...i/riv/nazevZdroje	Applied Physics Letters
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) Structures for spintronics and quantum phenomena created by electron beam lithography
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	93
http://linked.open...iv/tvurceVysledku	Kromka, Alexander Malý, P. Němec, P. Rezek, Bohuslav Preclíková, J. Trojánek, F.
http://linked.open...ain/vavai/riv/wos	000259011900066
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films Condensed Matter Physics – New Materials and Technologies
issn	0003-6951
number of pages	3 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond Ultrafast dynamics of photoexcited charge carriers in nanocrystalline diamond

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