Počet záznamů: 1

SrHfO.sub.3./sub.-based phosphors and scintillators

  1. 1.
    0370169 - FZU-D 2012 RIV NL eng J - Článek v odborném periodiku
    Nikl, Martin - Boháček, Pavel - Trunda, Bohumil - Jarý, Vítězslav - Fabeni, P. - Studnička, Václav - Kučerková, Romana - Beitlerová, Alena
    SrHfO3-based phosphors and scintillators.
    Optical Materials. Roč. 34, č. 2 (2011), s. 433-438 ISSN 0925-3467
    Grant CEP: GA AV ČR KAN300100802; GA ČR GA202/08/0893
    Výzkumný záměr: CEZ:AV0Z10100521; CEZ:AV0Z10100520
    Klíčová slova: SrHfO3 * luminescence * stoichiometry * Ce3+ doping
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.023, rok: 2011

    The heavily Ce-doped SrHfO3 (SHO) and the undoped non-stoichiometric SHO sample sets were prepared by solid state reaction in powder form and their luminescence spectra and decay kinetics were measured. Concentration quenching effects and thermally induced ionization of the Ce3+ excited states were followed and discussed in the former sample set. In the latter one new emission band at about 334 nm was found in Sr-deficient samples and temperature dependences of its emission intensity and decay times were studied in the detail. Room temperature decay time of about 180 ns and efficient and fast energy transfer from the host to the center of the 334 nm emission make this material promising candidate for X-ray phosphors.
    Trvalý link: http://hdl.handle.net/11104/0204048