Phosphate glasses with blue persistent luminescence prepared using the direct doping method

N. Ojha, M. Tuomisto, M. Lastusaari, L. Petit

    Research output: Contribution to journalArticleScientificpeer-review

    17 Citations (Scopus)

    Abstract

    Phosphate glasses with the composition (90NaPO3-(10-x)Na2O-xNaF) (mol%) with x = 0 and 10 were prepared with blue persistent luminescence (PeL) using direct particles doping method. Commercial CaAl2O4:Eu2+,Nd3+ microparticles (MPs) with blue PeL were added in the glass melt at a lower temperature than the melting temperature. The PeL properties of the glasses were related to the diffusion of Al from the MPs to the glass occurring during the glass preparation, which was found to depend on the temperature at which the MPs are added in the melt and also on the time before casting the melt after adding the MPs. The glass with x = 0 can be prepared with homogeneous PeL if the MPs are added at 575 °C. This Tdoping temperature can be reduced to 550 °C by replacing Na2O by NaF in the glass.

    Original languageEnglish
    Pages (from-to)151-156
    JournalOptical Materials
    Volume87
    Early online date1 Jan 2018
    DOIs
    Publication statusPublished - Jan 2019
    Publication typeA1 Journal article-refereed

    Keywords

    • CaAlO:Eu,Nd microparticles
    • Corrosion
    • Fluorophosphate glass
    • Persistent luminescence

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • General Computer Science
    • Atomic and Molecular Physics, and Optics
    • Electrical and Electronic Engineering

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