About: Fabrication and scintillation properties of highly transparent Pr:LuAG ceramics using Sc,La-based isovalent sintering aids

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About: Fabrication and scintillation properties of highly transparent Pr:LuAG ceramics using Sc,La-based isovalent sintering aids Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The use of aliovalent sintering aids for scintillation ceramics preparation caused serious problems due to the need for charge compensation. Isovalent ions do not cause such a problem. By using La2O3 and Sc2O3 isovalent sintering aids, we succeeded to produce Pr:LuAG ceramics with pure LuAG phase, good microstructure, and characterized by high optical quality. Luminescence and scintillation properties were also investigated and turned out to be similar to those of transparent ceramics obtained with aliovalent sintering agents. Thermoluminescence data show the presence of several trapping states experiencing a disordered surrounding. It can be concluded that sintering aids introduce local disorder due to their different radii with respect to that of the lattice ions resulting in the appearance of a UV emission and decrease of Pr fast 5d–4f luminescence intensity. The aspects of energy transfer and trapping in LuAG lattices are discussed. The use of aliovalent sintering aids for scintillation ceramics preparation caused serious problems due to the need for charge compensation. Isovalent ions do not cause such a problem. By using La2O3 and Sc2O3 isovalent sintering aids, we succeeded to produce Pr:LuAG ceramics with pure LuAG phase, good microstructure, and characterized by high optical quality. Luminescence and scintillation properties were also investigated and turned out to be similar to those of transparent ceramics obtained with aliovalent sintering agents. Thermoluminescence data show the presence of several trapping states experiencing a disordered surrounding. It can be concluded that sintering aids introduce local disorder due to their different radii with respect to that of the lattice ions resulting in the appearance of a UV emission and decrease of Pr fast 5d–4f luminescence intensity. The aspects of energy transfer and trapping in LuAG lattices are discussed. (en)
Title	Fabrication and scintillation properties of highly transparent Pr:LuAG ceramics using Sc,La-based isovalent sintering aids Fabrication and scintillation properties of highly transparent Pr:LuAG ceramics using Sc,La-based isovalent sintering aids (en)
skos:prefLabel	Fabrication and scintillation properties of highly transparent Pr:LuAG ceramics using Sc,La-based isovalent sintering aids Fabrication and scintillation properties of highly transparent Pr:LuAG ceramics using Sc,La-based isovalent sintering aids (en)
skos:notation	RIV/68378271:_____/13:00396551!RIV14-MSM-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(KAN300100802), P(LH12185)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Nikl, Martin Babin, Vladimir
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	74486
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00396551
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Pr:LuAG transparent ceramics; isovalent sintering aids; scintillation (en)
http://linked.open.../riv/klicoveSlovo	scintillation Pr:LuAG transparent ceramics isovalent sintering aids
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[C8718FC2BDBD]
http://linked.open...i/riv/nazevZdroje	Ceramics International
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	Nanocomposite, ceramic and thin film scintillators Innovative ceramic, glassceramic and single crystal scintillators: material tailoring and physical phenomena
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	39
http://linked.open...iv/tvurceVysledku	Li, J. Moretti, F. Nikl, Martin Vedda, A. Shen, Y. Feng, X. Pan, Y. Babin, Vladimir Dell'Orto, E. Zeng, Y.
http://linked.open...ain/vavai/riv/wos	000318577600158
issn	0272-8842
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ceramint.2012.12.065

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