Počet záznamů: 1
Luminescence and decay kinetic mechanism of Pr.sup.3+./sup. centre in Lu.sub.0.8./sub.Sc.sub.0.2./sub.BO.sub.3./sub. host
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SYSNO ASEP 0379870 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Luminescence and decay kinetic mechanism of Pr3+ centre in Lu0.8Sc0.2BO3 host Tvůrce(i) Wu, Y. (CN)
Jarý, Vítězslav (FZU-D) RID, ORCID
Ren, G. (CN)
Nikl, Martin (FZU-D) RID, ORCID, SAI
Ding, D. (CN)
Pan, S. (CN)
Yang, F. (US)Zdroj.dok. Chemical Physics Letters. - : Elsevier - ISSN 0009-2614
539-540, JUN (2012), s. 35-38Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova borate ; luminescence ; excited state ionization ; Pr3+ ; decay kinetics Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP LH12185 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z10100521 - FZU-D (2005-2011) UT WOS 000305802600008 DOI https://doi.org/10.1016/j.cplett.2012.05.010 Anotace The optical absorption, temperature dependence of emission spectra, prompt nanosecond decays and milisecond delayed recombination decays for Pr3+ centre in Lu0.8Sc0.2BO3 host were studied. The photoluminescence decay time decreases from 16 ns (80 K) to 11 ns (300 K), but its steady-state emission intensity at 300 K is stronger than that at 80 K and towards higher temperatures is further decreasing comparatively much less with respect to the decay time shortening. This abnormal phenomenon was proved to be associated with the thermal ionization processes occurring from 5d1 relaxed state of Pr3+ by slow decay measurement. The quantitative parameters, activation energy and frequency factor, governing the ionization processes, were calculated by the single escape barrier kinetic model. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2013
Počet záznamů: 1