Electrical stimulation for brighter persistent luminescence.

ABSTRACT: An immature understanding of the mechanisms of persistent luminescence (PersL) has hindered the development of new persistent luminescent materials (PersLMs) with increased brightness. In this regard, in-situ direct current (DC) electric field measurements were conducted on a layered structure composed of the SrAl₂O₄:Eu²⁺,Dy³⁺ phosphor, and an electrode. In this study, the photoluminescence (PL) and afterglow properties were investigated with respect to voltage by analyzing the current signal and thermoluminescence (TL) spectroscopy. The intensity of PersL increased due to a novel phenomenon known as "external electric field stimulated enhancement of initial brightness of afterglow". This dynamic process was illustrated via the use of a rate equa

SUBMITTER: Ma X 

PROVIDER: S-EPMC11251151 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature