dc.contributor.author | Pejchal, Jan | |
dc.contributor.author | Babin, Vladimir | |
dc.contributor.author | Buryi, Maksym | |
dc.contributor.author | Laguta, Valentyn | |
dc.contributor.author | Hájek, František | |
dc.contributor.author | Páterek, Juraj | |
dc.contributor.author | Procházková-Prouzová, Lenka | |
dc.contributor.author | Havlák, Lubomír | |
dc.contributor.author | Czerneková, Vladimíra | |
dc.contributor.author | Vaněček, Vojtěch | |
dc.contributor.author | Doležal, Václav | |
dc.contributor.author | Havlíček, Jan | |
dc.contributor.author | Rubešová, Kateřina | |
dc.contributor.author | Zemenová, Petra | |
dc.contributor.author | Falvey, Alexandra | |
dc.contributor.author | Král, Robert | |
dc.contributor.author | Pankratov, Vladimir | |
dc.contributor.author | Chernenko, Kirill | |
dc.date.accessioned | 2022-06-02T08:23:55Z | |
dc.date.available | 2022-06-02T08:23:55Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2633-5409 | |
dc.identifier.uri | https://pubs.rsc.org/en/content/articlelanding/2022/ma/d1ma01083b | |
dc.identifier.uri | https://dspace.lu.lv/dspace/handle/7/58955 | |
dc.description | The work was supported by the Czech Science Foundation project no. 18-14789S and by Operational Programme Research, Development and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (Project No. SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760). We acknowledge MAX IV Laboratory for time on Beamline FinEstBeAMS under Proposal 20180572. The research leading to this result was supported by the project CALIPSOplus under the Grant Agreement 730872 from the EU Framework Programme for Research and Innovation HORIZON 2020. The Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the H2020-WIDESPREAD-01-2016-2017-Teaming Phase2 under Grant Agreement No. 739508, Project CAMART2. | en_US |
dc.description.abstract | Aluminum perovskites represent an important group of promising scintillation materials with excellent proportionality and energy resolution, but due to difficulties in crystal growth not much attention has been paid to them. We studied a Ce-doped LaAlO3lanthanum-aluminum perovskite (LaAP) because of its easy crystal growth facilitated by the large La3+cations in the matrix. Moreover, recent observations of intense blue luminescence by some researchers show that the potential of this material could not be ruled out. On the other hand, some reports claim that Ce3+luminescence is completely absent in the LaAP matrix. Therefore, we have decided to study this material in much greater detail using an extended set of correlated experiments to explain the observed discrepancies and underlying phenomena. Crystal growth by the micro-pulling-down method is reported together with the luminescence and scintillation properties. We demonstrate the influence of inclusions of other aluminate phases created during the crystal growth on the luminescence processes. The existence of the phases was simultaneously confirmed by observations using a scanning electron microscope, cathodoluminescence, energy-dispersive X-ray analysis and electron paramagnetic resonance (EPR), which were correlated with photoluminescence and scintillation studies. The EPR evidenced the incorporation of Ce ions in different environments comprising the LaAP matrix and inclusions. Based on these results, the luminescence mechanism is proposed and discussed and the low scintillation efficiency of the Ce-doped LaAP is explained together with the discrepancies in the literature. © 2022 The authors. --//-- Published under the CC BY and CC BY-NC licence. | en_US |
dc.description.sponsorship | Czech Science Foundation project no. 18-14789S; Ministerstvo Školství, Mládeže a Tělovýchovy 730872, SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760; CALIPSOplus under the Grant Agreement 730872; The Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the H2020-WIDESPREAD-01-2016-2017-Teaming Phase2 under Grant Agreement No. 739508, Project CAMART2. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Royal Society of Chemistry | en_US |
dc.relation.ispartofseries | Materials Advances;3 | |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Research Subject Categories::NATURAL SCIENCES::Physics | en_US |
dc.title | Untangling the controversy on Ce3+luminescence in LaAlO3crystals | en_US |
dc.type | info:eu-repo/semantics/article | en_US |
dc.identifier.doi | 10.1039/d1ma01083b | |