Print Email Facebook Twitter Persistent luminescence in MSi2O2N2:Eu phosphors Title Persistent luminescence in MSi2O2N2:Eu phosphors Author Botterman, J. Van den Eeckhout, K. Bos, A.J.J. Dorenbos, P. Smet, P.F. Faculty Applied Sciences Department RRR/Radiation, Radionuclides and Reactors Date 2012-02-27 Abstract In this work we study the persistent luminescence properties of europium-doped alkaline earth silicon oxynitrides (CaSi2O2N2, SrSi2O2N2 and BaSi2O2N2). All compounds show afterglow emission, with an emission spectrum which is similar to the steady state photoluminescence. The afterglow decay time for BaSi2O2N2:Eu and SrSi2O2N2:Eu is about 50 and 100 minutes respectively, while for CaSi2O2N2:Eu the afterglow intensity is very low. Although the persistent luminescence can be induced by ultraviolet light (250-300 nm) in all three phosphors, only for BaSi2O2N2:Eu low energy radiation (350-500 nm) allows filling of the traps responsible for the afterglow. Subject optical storage materialsrare-earth-doped materialsspectroscopy, fluorescence and luminescencefluorescent and luminescent materialsphotoluminescence To reference this document use: http://resolver.tudelft.nl/uuid:a2a3d8df-2f7c-4928-a64b-4fa4f62c77fd DOI https://doi.org/10.1364/OME.2.000341 Publisher Optical Society of America ISSN 2159-3930 Source http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-2-3-341 Source Optical Materials Express, 2 (3), 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 Optical Society of America Files PDF Bos_2012.pdf 1.06 MB Close viewer /islandora/object/uuid:a2a3d8df-2f7c-4928-a64b-4fa4f62c77fd/datastream/OBJ/view