Počet záznamů: 1
SrHfO.sub.3./sub.-based phosphors and scintillators
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