Open AccessTemperature dependence of the luminescence of powder SrAl2O4:(Eu2+, Dy3+) phosphor excited by cw and pulsed laser radiation
Author(s) -
А. А. Банишев,
А. А. Банишев
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1713/1/012008
Subject(s) - phosphorescence , photoluminescence , afterglow , phosphor , persistent luminescence , excited state , materials science , luminescence , laser , analytical chemistry (journal) , optoelectronics , optics , atomic physics , thermoluminescence , chemistry , fluorescence , physics , gamma ray burst , chromatography , astronomy
This paper presents the results of a study of the temperature dependence of the photoluminescence and phosphorescence of the mechanoluminophor powder SrAl 2 O 4 :(Eu 2+ ), SrAl 2 O 4 :(Eu 2+ , Dy 3+ ), CaAl 2 O 4 :(Eu 2+ , Dy 3+ ) which are promising materials for the creation of mechano-optical converters. The photoluminescence of the phosphors’ phosphorescence was excited by a set of cw lasers with different wavelengths. The temperature dependence of the kinetics of the photoluminescence and phosphorescence afterglow was studied. It is shown that with an increase in temperature to T » 90 °C, an increase in the intensity of the afterglow (phosphorescence) is observed in the initial period of time after switching off the exciting laser radiation.