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Improved cathodoluminescence performance of Mg-doped LuAG:Ce(GdGa) single crystalline films
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SYSNO ASEP 0481925 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Improved cathodoluminescence performance of Mg-doped LuAG:Ce(GdGa) single crystalline films Tvůrce(i) Lalinský, Ondřej (UPT-D) RID, ORCID, SAI
Schauer, Petr (UPT-D) RID, SAI, ORCID
Lučeničová, Z. (CZ)
Kučera, M. (CZ)Celkový počet autorů 4 Zdroj.dok. SCINT 2017. 14th International Conference on Stintillating Materials and their Applications. Book of Abstracts. - Chamonix : CERN, 2017 Poč.str. 1 s. Forma vydání Online - E Akce SCINT 2017. International Conference on Stintillating Materials and their Applications /14./ Datum konání 18.10.2017 - 22.10.2017 Místo konání Chamonix Země FR - Francie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova cathodoluminescence ; single crystalline films Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP GA16-05631S GA ČR - Grantová agentura ČR LO1212 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy ED0017/01/01 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UPT-D - RVO:68081731 Anotace Cerium activated lutetium aluminum garnet (LuAG:Ce) is a perspective material for applications in detection of X-rays, gamma radiation or high energy particles. However, the luminescence response of LuAG:Ce suffers from structural defects (mainly anti-site defects) that create unwanted slow microsecond-component in decay characteristics. Concentration of these defects decreases with decreasing growth temperature. Therefore, single-crystalline films grown by liquid phase epitaxy have recently attracted a lot of attention because their growth temperature is about half of that of the bulk single crystals grown by the Czochralski method. As shown earlier, the proper admixture of Gd and Ga into the garnet structure eliminates the effect of remaining anti-site defects and thus resulting in almost complete suppression of the slow decay component. In addition, such material has exceptionally high light yield (LY) exceeding 50 kph/MeV and its cathodoluminescence (CL) decay is dominated by a fast component with decay time of 50-80 ns. However, this decay time can be still too high, for example, for some special SEM applications where very fast e-beam scanning is required. Thus, new materials with faster decay have to be found. Recently, Mg 2+ -doped garnet films have been intensively studied, primarily using photoluminescence and radioluminescence but X-rays have high penetration depth in garnets. Consequently, unwanted substrate information is also recorded. The CL solves this problem because electrons having energy of 10 keV don’t penetrate deeper than 1 µm under the surface. Therefore, CL was selected as the optimal tool for specimen characterization. Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2018
Počet záznamů: 1