Photo and cathodoluminescence of commercial YAG:Ce based phosphors in UV region

The luminescence spectral kinetic characteristics in UV and visible spectral regions of a group of commercial YAG:Ce based phosphors are investigated under excitation by UV radiation in the spectral range of 300–210 nm (photoluminescence, PL) and high-energy electrons (0.25 MeV, pulse cathodolumines...

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Bibliographic Details
Published in:	Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 478; pp. 120 - 124
Main Authors:	Lisitsyn, V.M., Tulegenova, A.T., Lisitsyna, L.A., Vaganov, V.A., Soshchin, N.P., Polisadova, E.F., Abdullin, Kh.A., Yangyang, Ju
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01-09-2020
Subjects:	Cathodoluminescence Decay kinetics UV luminescence YAG:Ce phosphors Decay kinetics Cathodoluminescence YAG:Ce phosphors UV luminescence
Online Access:	Get full text
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Summary:	The luminescence spectral kinetic characteristics in UV and visible spectral regions of a group of commercial YAG:Ce based phosphors are investigated under excitation by UV radiation in the spectral range of 300–210 nm (photoluminescence, PL) and high-energy electrons (0.25 MeV, pulse cathodoluminescence, PCL). It was established that UV luminescence appears in all phosphors, whose spectrum consists of bands in the region of 312, 320, 380 nm and 530–565 nm. The kinetics of the PCL UV luminescence decay in all phosphors shows at least one, two components in different phosphors but is differ from kinetics of luminescence in the visible region. The possible structure of luminescence centers responsible for UV luminescence is discussed.
ISSN:	0168-583X 1872-9584
DOI:	10.1016/j.nimb.2020.06.004