About: Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence

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About: Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report on systematic study of photoluminescence properties of nanocrystalline titanium dioxide films consisting of predominantly anatase nanoparticles with diameters larger than 13 nm. We measured photoluminescence under two selected excitation wavelengths 325 nm/442 nm, i.e., above/below band gap excitation, under different values of ambient air pressure 5-105 Pa, and in the temperature interval 10-300 K. On basis of our results, we are able to distinguish two different processes leading to photoluminescence: the exciton recombination and the recombination of carriers in the energy states related to the surface of nanocrystals. We propose microscopic models describing well the effects of temperature and ambient conditions on photoluminescence of nanocrystalline titanium dioxide films. We report on systematic study of photoluminescence properties of nanocrystalline titanium dioxide films consisting of predominantly anatase nanoparticles with diameters larger than 13 nm. We measured photoluminescence under two selected excitation wavelengths 325 nm/442 nm, i.e., above/below band gap excitation, under different values of ambient air pressure 5-105 Pa, and in the temperature interval 10-300 K. On basis of our results, we are able to distinguish two different processes leading to photoluminescence: the exciton recombination and the recombination of carriers in the energy states related to the surface of nanocrystals. We propose microscopic models describing well the effects of temperature and ambient conditions on photoluminescence of nanocrystalline titanium dioxide films. (en)
Title	Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence (en)
skos:prefLabel	Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence (en)
skos:notation	RIV/00216208:11310/10:10070159!RIV11-GA0-11310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GD202/09/H041), P(KAN301370701), P(KAN400100701), S, Z(AV0Z10100520), Z(AV0Z10100521), Z(MSM0021620828), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	11
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Němcová, Yvonne
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	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	273611
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/10:10070159
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nanocrystalline films; photoluminescence; titanium dioxide (en)
http://linked.open.../riv/klicoveSlovo	nanocrystalline films photoluminescence titanium dioxide
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[5E7A5E3EF374]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Physics
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Physics of nanostructures Nanostructured Macroscopic Systems - Technology and Characterisation Functional hybrid nanosystems of semiconductors and metals with organic materials (FUNS)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	108
http://linked.open...iv/tvurceVysledku	Daniš, Stanislav Rezek, Bohuslav Gregora, Ivan Němcová, Yvonne Malý, Petr Galář, Pavel Preclíková, Jana Trojánek, František
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry Physics and technology of nanostructures, surfaces and thin films Ekologické procesy v evoluci modelových skupin organismů Condensed Matter Physics – New Materials and Technologies
issn	0021-8979
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	11310
is http://linked.open...avai/riv/vysledek of	Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence

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