Refereed journal article or data article (A1)

Micro-luminescence measurement to evidence decomposition of persistent luminescent particles during the preparation of novel persistent luminescent tellurite glasses




List of Authors: Hasnat M., Lahti V., Byron H., Lastusaari M., Petit L.

Publisher: Acta Materialia Inc

Publication year: 2021

Journal: Scripta Materialia

Journal name in source: Scripta Materialia

Volume number: 199

ISSN: 1359-6462

eISSN: 1872-8456

DOI: http://dx.doi.org/10.1016/j.scriptamat.2021.113864

Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/55207899


Abstract

The preparation of tellurite glasses with persistent luminescence by adding persistent luminescent particles in the glass melt is reported. Compared to phosphate glasses, the afterglow from the tellurite glasses is low, indicating that the tellurite melt is more corrosive on the particles than the phosphate melt. However, as opposed to phosphate glasses, no emission from Eu3+ was detected in the photoluminescence spectra of the glasses when crushed into powder. We show that a confocal Raman microscope can be used to evidence the presence of Eu3+ in the glass-particles interface confirming that some oxidation of Eu2+ actually takes place during the preparation of the tellurite glasses.


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Last updated on 2022-07-10 at 08:37