Persistent Luminescence in Non-Eu2+-Doped Compounds: A Review
نویسندگان
چکیده
منابع مشابه
Persistent Luminescence in Non-Eu2+-Doped Compounds: A Review
During the past few decades, the research on persistent luminescent materials has focused mainly on Eu2+-doped compounds. However, the yearly number of publications on non-Eu2+-based materials has also increased steadily. By now, the number of known persistent phosphors has increased to over 200, of which over 80% are not based on Eu2+, but rather, on intrinsic host defects, transition metals (...
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In 1996, Matsuzawa et al. reported on the extremely long-lasting afterglow of SrAl2O4:Eu 2+ codoped with Dy 3+ ions, which was more than 10-times brighter than the previously widely used ZnS:Cu,Co. Since then, research for stable and efficient persistent phosphors has continuously gained popularity. However, even today almost 15 years after the discovery of SrAl2O4:Eu 2+ , Dy 3+ the number of p...
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Sr2SiS4:Ce3+ is an efficient blue-emitting (460 nm) phosphor, excitable with light of wavelengths up to 420 nm. From the excitation spectrum, we construct the energy level scheme and use it to check the predictive power of the Dorenbos model, relating the positions of the Ce3+ energy levels with those of Eu2+ in the same host. For strontium thiosilicate, this method gives excellent results and ...
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In 1996, Matsuzawa et al. reported on the enormously long-lasting afterglow of SrAl2O4: Eu 2+ co-doped with Dy ions, which was more than 10-times brighter than the previously widely used ZnS: Cu. Since then, research for stable and efficient phosphors has constantly gained attractiveness. However, even today almost 15 years after the invention of SrAl2O4: Eu 2+ the number of luminescent materia...
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In conventional photostimulable storage phosphors, the optical information written by x-ray or ultraviolet irradiation is usually read out as a visible photostimulated luminescence (PSL) signal under the stimulation of a low-energy light with appropriate wavelength. Unlike the transient PSL, here we report a new optical read-out form, photostimulated persistent luminescence (PSPL) in the near-i...
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ژورنال
عنوان ژورنال: Materials
سال: 2013
ISSN: 1996-1944
DOI: 10.3390/ma6072789