Luminescent Properties of Composite Materials Based on Porous Glasses Activated by Silver and Lanthanum

Composite materials (CMs) based on matrices of high-silica nanoporous glasses activated by silver and lanthanum are synthesized. It is established that, depending on the composition, the CM samples exhibit luminescence in the UV, violet-blue, green, red, and infrared spectral ranges due to the prese...

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Bibliographic Details
Published in:Glass physics and chemistry 2023-12, Vol.49 (6), p.557-563
Main Authors: Girsova, M. A., Kurilenko, L. N., Anfimova, I. N., Antropova, T. V.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Composites
Glass
Lanthanum oxides
Luminescence
Materials Science
Molecular clusters
Nanoparticles
Natural Materials
Optical properties
Physical Chemistry
Porous materials
Silica glass
Silver
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Summary:Composite materials (CMs) based on matrices of high-silica nanoporous glasses activated by silver and lanthanum are synthesized. It is established that, depending on the composition, the CM samples exhibit luminescence in the UV, violet-blue, green, red, and infrared spectral ranges due to the presence of isolated Ag + -ions, Ag + –Ag + paired centers, molecular clusters (MCs) and nanoparticles (NPs) of silver, and oxygen vacancies in La 2 O 3 , together with various silicon defect centers.
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659623600709