Low temperature afterglow from SrAl2O4: Eu, Dy, B containing glass - UTU Research Portal

A1 Refereed original research article in a scientific journal

Low temperature afterglow from SrAl2O4: Eu, Dy, B containing glass

Authors: Vitola Virginija, Lahti Vilma, Bite Ivita, Spustaka Agnese, Millers Donats, Lastusaari Mika, Petit Laeticia, Smits Krisjanis

Publisher: PERGAMON-ELSEVIER SCIENCE LTD

Publication year: 2021

Journal: Scripta Materialia

Journal name in source: SCRIPTA MATERIALIA

Journal acronym: SCRIPTA MATER

Volume: 190

First page : 86

Last page: 90

Number of pages: 5

ISSN: 1359-6462

eISSN: 1872-8456

DOI: https://doi.org/10.1016/j.scriptamat.2020.08.023

Abstract

SrAl₂O₄: Eu, Dy, B particles were added in a phosphate glass (90NaPO₃-10NaF (in mol%)) using the direct doping method. For the first time, the composition of the particles prior to and after embedding them in the glass was analysed using EPMA analysis. Boron was found to be incorporated in already distorted surroundings creating new trapping centers in the particles which are thought to be favourable for the tunnelling process and so for the afterglow at 10K. Despite the partial decomposition of the particles, the glass exhibit afterglow at low temperature confirming to be promising materials for low temperature applications. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.