About: Effect of temperature on photoexcited charge carrier dynamics in Si-NCs/SiO2 superlattices

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About: Effect of temperature on photoexcited charge carrier dynamics in Si-NCs/SiO2 superlattices Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1117/12.2022723
Description	An experimental study of the temperature dependence of photoluminescence time decay in size-controlled silicon nanocrystals in silicon nanocrystal/SiO2 superlattices is reported. The samples were prepared using thermal evaporation and subsequent thermally induced phase separation. The slow (microseconds) decay line shape is described well by a stretched exponential. The temperature dependence of the photoluminescence dynamics can be understood in terms of thermal activation of recombination processes, including hopping of carriers between localized states. Additional hydrogen treatment causes an increase in both parameters of the stretched exponential function. This behavior is interpreted as a consequence of H-2-passivation of dangling bonds defects. An experimental study of the temperature dependence of photoluminescence time decay in size-controlled silicon nanocrystals in silicon nanocrystal/SiO2 superlattices is reported. The samples were prepared using thermal evaporation and subsequent thermally induced phase separation. The slow (microseconds) decay line shape is described well by a stretched exponential. The temperature dependence of the photoluminescence dynamics can be understood in terms of thermal activation of recombination processes, including hopping of carriers between localized states. Additional hydrogen treatment causes an increase in both parameters of the stretched exponential function. This behavior is interpreted as a consequence of H-2-passivation of dangling bonds defects. (en)
Title	Effect of temperature on photoexcited charge carrier dynamics in Si-NCs/SiO2 superlattices Effect of temperature on photoexcited charge carrier dynamics in Si-NCs/SiO2 superlattices (en)
skos:prefLabel	Effect of temperature on photoexcited charge carrier dynamics in Si-NCs/SiO2 superlattices Effect of temperature on photoexcited charge carrier dynamics in Si-NCs/SiO2 superlattices (en)
skos:notation	RIV/00216208:11320/13:10173371!RIV14-MSM-11320___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Kořínek, Miroslav Kozák, Martin Malý, Petr Trojánek, František
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	71772
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10173371
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Photoluminescence; Time-resolved spectroscopy; Silicon nanocrystals (en)
http://linked.open.../riv/klicoveSlovo	Silicon nanocrystals Time-resolved spectroscopy Photoluminescence
http://linked.open...ontrolniKodProRIV	[3CEEBF7389F6]
http://linked.open...v/mistoKonaniAkce	San Diego, USA
http://linked.open...i/riv/mistoVydani	BELLINGHAM
http://linked.open...i/riv/nazevZdroje	Proceedings of SPIE - The International Society for Optical Engineering
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Malý, Petr Kozák, Martin Trojánek, František Gutsch, S. Hartel, A. M. Hiller, D. Kořínek, Miroslav Zacharias, M.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000327304600011
http://linked.open.../riv/zahajeniAkce	2013-08-25 (xsd:date)
issn	0277-786X
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1117/12.2022723
http://purl.org/ne...btex#hasPublisher	SPIE-INT SOC OPTICAL ENGINEERING
https://schema.org/isbn	978-0-8194-9657-7
http://localhost/t...ganizacniJednotka	11320

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