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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00396551" target="_blank" >RIV/68378271:_____/13:00396551 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ceramint.2012.12.065" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2012.12.065</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2012.12.065" target="_blank" >10.1016/j.ceramint.2012.12.065</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 thelattice 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 thelattice 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

5985-5990

Kód UT WoS článku

000318577600158

EID výsledku v databázi Scopus

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