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Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/14179
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dc.contributor.authorDobrowolska, A-
dc.contributor.authorDierre, B-
dc.contributor.authorFang, CM-
dc.contributor.authorHintzen, HT-
dc.contributor.authorDorenbos, P-
dc.date.accessioned2017-03-03T11:23:51Z-
dc.date.available2017-03-03T11:23:51Z-
dc.date.issued2016-12-27-
dc.identifier.citationDobrowolska, A. et al. (2017) 'Thermal quenching of Eu2+ emission in Ca- and Sr-Ga2S4 in relation with VRBE schemes', Journal of Luminescence, 184, pp. 256 - 261. doi: 10.1016/j.jlumin.2016.12.022.en_US
dc.identifier.issn0022-2313-
dc.identifier.urihttps://bura.brunel.ac.uk/handle/2438/14179-
dc.description.abstractStructural and optical properties of MGa2S4 (M = Mg, Zn, Ca, Sr, Ba) compounds have been compared, and the vacuum referred binding energy (VRBE) schemes were constructed for the lanthanide ions in the iso-structural compounds CaGa2S4 and SrGa2S4 employing literature data. The VRBE of an electron in the 5d excited state of Eu2+ was found at 0.75 and 0.97 eV below the bottom of the conduction band (CB) in CaGa2S4:Eu and SrGa2S4:Eu, respectively. Such differences explains the unexpected higher thermal quenching temperature reported for Eu2+-doped SrGa2S4 (T50% = ∼475 K) compared to Eu2+-doped CaGa2S4 (T50% = 400 K) The significantly lower VRBE at the CB-bottom in CaGa2S4 versus SrGa2S4 may be explained by the shorter Ga-S bond lengths in SrGa2S4.en_US
dc.format.extent256 - 261-
dc.format.mediumPrint-Electronic-
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rightsCopyright © 2016 Elsevier B.V. All rights reserved. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1016/j.jlumin.2016.12.022, made available on this repository under a Creative Commons CC BY-NC-ND attribution licence (https://creativecommons.org/licenses/by-nc-nd/4.0/).-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.subjectSrGa2S4en_US
dc.subjectCaGa2S4en_US
dc.subjectthiogallateen_US
dc.subjectVRBEen_US
dc.subjectthermal quenchingen_US
dc.titleThermal quenching of Eu2+ emission in Ca- and Sr-Ga2S4 in relation with VRBE schemesen_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.1016/j.jlumin.2016.12.022-
dc.relation.isPartOfJournal of Luminescence-
pubs.notespublisher: Elsevier articletitle: Thermal quenching of Eu2+ emission in Ca- and Sr-Ga2S4 in relation with VRBE schemes journaltitle: Journal of Luminescence articlelink: http://dx.doi.org/10.1016/j.jlumin.2016.12.022 content_type: article copyright: © 2016 Elsevier B.V. All rights reserved.-
pubs.publication-statusPublished-
pubs.volume184-
dc.identifier.eissn1872-7883-
dc.rights.holderElsevier B.V.-
Appears in Collections:Brunel Centre for Advanced Solidification Technology (BCAST)

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