Temperature dependence of luminescence characteristics of Lu.sub.2(1-x)./sub.Y.sub.2x./sub.SiO.sub.5./sub.: Ce.sup.3+./sup. scintillator grown by the Czochralski method

0353681 - FZÚ 2011 RIV US eng J - Článek v odborném periodiku
Feng, H. - Jarý, Vítězslav - Mihóková, Eva - Ding, D. - Nikl, Martin - Ren, G. - Li, H. - Pan, S. - Beitlerová, Alena - Kučerková, Romana
Temperature dependence of luminescence characteristics of Lu_2(1-x)Y_2xSiO₅: Ce³⁺ scintillator grown by the Czochralski method.
Journal of Applied Physics. Roč. 108, č. 3 (2010), 033519/1-033519/6. ISSN 0021-8979. E-ISSN 1089-7550
Grant CEP: GA MŠMT(CZ) ME10084
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: temperature dependence * luminescence * scintillator
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.064, rok: 2010

In this paper, we investigate the temperature dependence of luminescence characteristics of highly efficient cerium-doped scintillator, lutetium-yttrium orthosilicate Lu2(1−x)Y2xSiO5:Ce3+. The photoluminescence excitation and emission spectra have been measured in a broad temperature range. The temperature dependence of the Ce1 and Ce2 decay times shows the onset of decay time decrease at about 300 K. This observation demonstrates that unlike so far reported, the Ce2 center is not substantially quenched until room temperature. The 5d1 excited-state ionization of both Ce1 and Ce2 centers is studied by purely optical methods.
Trvalý link: http://hdl.handle.net/11104/0192854