Recent progress in understanding the persistent luminescence in SrAl2O4:Eu,Dy

Virginija Vitola, Donats Millers, Ivita Bite, Krisjanis Smits & Agnese Spustaka

Ever since the discovery of SrAl2O4:Eu,Dy persistent afterglow material,that can intensively glow up to 20h, the mechanism of long-lasting luminescence has been a popular area of research. The research is focused on discovering the mechanism of persistent luminescence in order to prolong the duration and intensity of afterglow in a controlled way. Although most researchers agree on the  general things, there are still many unclarities and ambiguities to discuss upon.This review paper briefly sketches in the highlights of past research on the luminescence mechanism in SrAl2O4:Eu,Dy, mainly focusing on the research conducted in the past decade dedicated to clearing these ambiguities.This paper provides an overview of the latest persistent luminescence mechanisms offered by researchers.

Keywords: Persistent luminescence, long afterglow, luminescence mechanism, luminescence mechanism; strontium aluminate

Published in Materials Science and Technology

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