Electron paramagnetic resonance and photoluminescence investigation of europium local structure in oxyfluoride glass ceramics containing SrF2 nanocrystals

Simple item page
dc.contributor.authorAntuzevics, Andris
dc.contributor.authorKemere, Meldra
dc.contributor.authorKrieke, Guna
dc.contributor.authorIgnatans, Reinis
dc.date.accessioned2021-01-08T17:43:44Z
dc.date.available2021-01-08T17:43:44Z
dc.date.issued2017
dc.description.abstractDifferent compositions of europium doped aluminosilicate oxyfluoride glass ceramics prepared in air atmosphere have been studied by electron paramagnetic resonance (EPR) and optical spectroscopy methods. X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements show presence of homogenously distributed SrF2 nanocrystals after the heat treatment of the precursor glass. Efficient Eu3+ incorporation in the high symmetry environment of glass ceramics is observed from the photoluminescence spectra. EPR spectra indicate Eu3+ → Eu2+ reduction upon precipitation of crystalline phases in the glass matrix. For composition abundant with Eu2+ in the glassy state such behaviour is not detected. Local structure around europium ions is discussed based on differences in chemical compositions. ----/ / /---- This is the preprint of the following article: A. Antuzevics, M. Kemere, G. Krieke, R. Ignatans, Electron paramagnetic resonance and photoluminescence investigation of europium local structure in oxyfluoride glass ceramics containing SrF2 nanocrystals, Optical Materials 72 (2017), which has been published at https://www.sciencedirect.com/science/article/abs/pii/S0925346717304731. This article may be used for non-commercial purposes in accordance with Elsevier Terms and Conditions for Sharing and Self-Archiving.en_US
dc.description.sponsorshipAuthors thank prof. U. Rogulis for valuable discussions and suggestions and Dr. Krisjanis Smits for TEM measurements. Financial support provided by Scientific Research Project for Students and Young Researchers Nr. SJZ/2016/3 realized at the Institute of Solid State Physics, University of Latvia is greatly acknowledged. Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020- WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART²en_US
dc.identifier.doi10.1016/j.optmat.2017.07.024
dc.identifier.issn0925-3467
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0925346717304731
dc.identifier.urihttps://dspace.lu.lv/dspace/handle/7/53326
dc.language.isoengen_US
dc.publisherElsevier B.V.en_US
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART²en_US
dc.relation.ispartofseriesOptical Materials;72
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.licenseThis article may be used for non-commercial purposes in accordance with Elsevier Terms and Conditions for Sharing and Self-Archiving.
dc.subjectResearch Subject Categories::NATURAL SCIENCES:Physicsen_US
dc.subjectElectron paramagnetic resonanceen_US
dc.subjectLuminescenceen_US
dc.subjectOxyfluorideen_US
dc.subjectTransparent glass ceramicsen_US
dc.subjectEuropium ionsen_US
dc.titleElectron paramagnetic resonance and photoluminescence investigation of europium local structure in oxyfluoride glass ceramics containing SrF2 nanocrystalsen_US
dc.typeinfo:eu-repo/semantics/preprinten_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Electron_Paramagnetic_Resonance_and_Photoluminescence_Antuzevics_2017.pdf
Size:
545.79 KB
Format:
Adobe Portable Document Format
Description:
Pre-print manuscript
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Zinātniskie raksti (CFI) / Scientific articles