About: Preparation, luminescence and structural properties of RE-doped RbLaS2 compounds

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Rare-earth(RE = Ce, Pr, Sm, Eu, Tb)doped ternary sulfides having the general formula RbLa0.99RE0.01S2 and undoped RbLaS2 were synthesized. X-ray powder diffraction confirmed the single crystalline phase of the rhombohedral lattice system (space group R-3 m, α-NaFeO2 structure type) with hexagonality c/a = 5.34, consistent with the already reported RbLaS2 structure. Time-resolved luminescence spectroscopy was employed to investigate radioluminescence, photoluminescence, decay kinetics and absorption spectra. An RbLaS2 band edge at 322 nm was found and characteristic Pr3+, Sm3+ and Tb3+ 4f–4f emission lines in the visible spectral range were observed. The charge transfer transitions in the Pr3+- and Sm3+-related excitation spectra in the range 330–350 nm are described and the efficient energy transfer from the host to the emission centers is revealed. We discuss the potential for application in field emission displays, white LED solid-state lighting and X-ray phosphors. Rare-earth(RE = Ce, Pr, Sm, Eu, Tb)doped ternary sulfides having the general formula RbLa0.99RE0.01S2 and undoped RbLaS2 were synthesized. X-ray powder diffraction confirmed the single crystalline phase of the rhombohedral lattice system (space group R-3 m, α-NaFeO2 structure type) with hexagonality c/a = 5.34, consistent with the already reported RbLaS2 structure. Time-resolved luminescence spectroscopy was employed to investigate radioluminescence, photoluminescence, decay kinetics and absorption spectra. An RbLaS2 band edge at 322 nm was found and characteristic Pr3+, Sm3+ and Tb3+ 4f–4f emission lines in the visible spectral range were observed. The charge transfer transitions in the Pr3+- and Sm3+-related excitation spectra in the range 330–350 nm are described and the efficient energy transfer from the host to the emission centers is revealed. We discuss the potential for application in field emission displays, white LED solid-state lighting and X-ray phosphors. (en)
Title	Preparation, luminescence and structural properties of RE-doped RbLaS2 compounds Preparation, luminescence and structural properties of RE-doped RbLaS2 compounds (en)
skos:prefLabel	Preparation, luminescence and structural properties of RE-doped RbLaS2 compounds Preparation, luminescence and structural properties of RE-doped RbLaS2 compounds (en)
skos:notation	RIV/68378271:_____/11:00374678!RIV12-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN300100802), P(TA01011017), Z(AV0Z10100520), Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	16
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Nikl, Martin Boháček, Pavel Jarý, Vítězslav Havlák, Lubomír
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	223067
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00374678
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	X-ray diffraction; optical materials; crystal growth; luminescence (en)
http://linked.open.../riv/klicoveSlovo	optical materials X-ray diffraction crystal growth luminescence
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[D85E682013B7]
http://linked.open...i/riv/nazevZdroje	Acta Materialia
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	New Single Crystal Materials Prepared with EFG Technology and Their Hi-tech Applications Nanocomposite, ceramic and thin film scintillators
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	59
http://linked.open...iv/tvurceVysledku	Boháček, Pavel Nikl, Martin Jarý, Vítězslav Bárta, J. Havlák, Lubomír
http://linked.open...ain/vavai/riv/wos	000294936600002
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
issn	1359-6454
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.actamat.2011.06.019

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