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Title: Nanodefects in YAG: Ce phosphors
Authors: Lisitsyn, Viktor Mikhailovich
Tulegenova, Aida Tulegenkyzy
Lisitsyna, Lyudmila Aleksandrovna
Vaganov, Vitalii
Ju Yanyan
Keywords: люминофоры; твердотельные источники; освещение
Issue Date: 2018
Publisher: IOP Publishing
Citation: Nanodefects in YAG: Ce phosphors / V. M. Lisitsyn [et al.] // Journal of Physics: Conference Series. — 2018. — Vol. 1115 : 6th International Congress "Energy Fluxes and Radiation Effects"18th International Conference on Radiation Physics and Chemistry of Condensed Matter (18th RPC) : [proceedings], 16-22 September 2018, Tomsk, Russian Federation. — [052036, 9 p.].
Abstract: Since the mid-1990s, phosphors have played a key role in emerging solidstate white-lighting technologies that are based on combining a near-UV or blue solid-state light source with downconversion to longer wavelengths. Almost all of them used phosphorescreted a crystalline oxide, nitride, or oxynitride host that is appropriately doped with Gd, Ce or Eu. Activation of phosphors by rare earth elements, leads to the formation of defects in the lattice and due to the change in the luminescent properties. This paper presents the new original model of energy transfer in the YAG crystals, which is a good description of the possible luminescence transitions in crystals. The morphology, spectra and kinetics characteristics of the luminescence of industrial phosphor excited by electron and laser radiation were investigated. The obtained theoretical and practical data are good agreement with each other, and thus are of great interest for understanding the nature of luminescence.
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