Luminescence and photo-thermally stimulated defect creation processes in PbWO.sub.4./sub.:Mo,La,Y (PWO III) crystals

0486092 - FZÚ 2018 RIV DE eng J - Článek v odborném periodiku
Auffray, E. - Korjik, M. - Laguta, Valentyn - Zazubovich, S.
Luminescence and photo-thermally stimulated defect creation processes in PbWO₄:Mo,La,Y (PWO III) crystals.
Physica Status Solidi B. Roč. 252, č. 10 (2015), s. 2259-2267. ISSN 0370-1972. E-ISSN 1521-3951
Institucionální podpora: RVO:68378271
Klíčová slova: defects * ESR * PbWO4:Mo * La * Y crystals * photoluminescence * thermoluminescence
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.522, rok: 2015

Photoluminescence, thermally stimulated luminescence and electron spin resonance are studied for a PbWO4 crystal grown by the Czochralski method at Bogoroditsk Technical Chemical Plant, Russia from the melt with a precise tuning of the stoichiometry and co-doped with La3+, Y3+, and Mo6+ ions. The data obtained indicate a small concentration of single (non-compensated) oxygen (V-O) and lead (V-Pb) vacancies as the traps for electrons and holes, respectively, which explains more favorable scintillation characteristics of the PbWO4:Mo,La,Y crystal as compared with the earlier studied PbWO4:Mo, La and PbWO4:Mo,Y crystals.

Trvalý link: http://hdl.handle.net/11104/0280975