Optical Materials Activated with CeO2:Ln3+ Nanoparticles

Autor: Malashkevich, G.E., Khottchenkova, T.G., Kouhar, V.V., Sigaev, V.N., Pestryakov, E.V.
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Popis: 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.
Databáze: OpenAIRE