About: Time-resolved photoluminescence spectroscopy of the initial oxidation

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this paper we study the influence of progressing oxidation on the photoluminescence spectra of small silicon nanocrystals (SiNCs). H-terminated SiNCs exhibit only a fast approximately nanosecond photoluminescence component at about 525 nm, quenched and redshifted to about 550 nm by progressing oxidation. At the same time a new approximately microsecond photoluminescence component appears, intensity of which progressively increases and its peak position redshifts continuously from 575 up to 660 nm. We interpret our observations in terms of the quasidirect core electron-hole pair recombination quenched by the ultrafast trapping into the oxygen-related surface/interface states, forming within the band gap due to oxidation. In this paper we study the influence of progressing oxidation on the photoluminescence spectra of small silicon nanocrystals (SiNCs). H-terminated SiNCs exhibit only a fast approximately nanosecond photoluminescence component at about 525 nm, quenched and redshifted to about 550 nm by progressing oxidation. At the same time a new approximately microsecond photoluminescence component appears, intensity of which progressively increases and its peak position redshifts continuously from 575 up to 660 nm. We interpret our observations in terms of the quasidirect core electron-hole pair recombination quenched by the ultrafast trapping into the oxygen-related surface/interface states, forming within the band gap due to oxidation. (en)
Title	Time-resolved photoluminescence spectroscopy of the initial oxidation Time-resolved photoluminescence spectroscopy of the initial oxidation (en)
skos:prefLabel	Time-resolved photoluminescence spectroscopy of the initial oxidation Time-resolved photoluminescence spectroscopy of the initial oxidation (en)
skos:notation	RIV/68378271:_____/09:00331693!RIV10-MSM-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/07/0818), P(IAA101120804), P(KJB100100903), P(LC510), Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kůsová, Kateřina Dohnalová, Kateřina Pelant, Ivan
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	346373
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/09:00331693
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	silicon nanocrystals; photoluminescence; oxidation (en)
http://linked.open.../riv/klicoveSlovo	oxidation photoluminescence silicon nanocrystals
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[E6FEF262DFFB]
http://linked.open...i/riv/nazevZdroje	Applied Physics Letters
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Center of nanotechnology and materials for nanoelectronics Nanocomposites from silicon and diamond nanocrystals for optoelectronic applications Silicon nanostructures for photonics Silicon nanophotonics - from single nanocrystals to photonic structures
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	94
http://linked.open...iv/tvurceVysledku	Dohnalová, Kateřina Kůsová, Kateřina Pelant, Ivan
http://linked.open...ain/vavai/riv/wos	000266500400014
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films
issn	0003-6951
number of pages	3 (xsd:int)

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