Optical Materials Activated with CeO2:Ln3+ Nanoparticles
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Date
2014
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Sumy State University
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Abstract
Silica glasses and siliceous powders activated with CeO2:Ln3+ (Ln ¹ Ce) nanoparticles were synthesized by the sol-gel method and their structural and spectral-luminescent properties were investigated. It is shown that the main features of the Ln3+ ions are a high relative intensity of magnetic dipole transitions and sufficiently effective sensitization of their luminescence with labile photoreduced (Ce4+)- ions by means of superexchange mechanism or/and by transfer of electron.
Keywords
Oxide nanoparticles, Luminescenc, Structure of optical centers, Transfer of electron excitations
Citation
Proc. NAP 3, 02NAESF11 (2014)