The magazine «Glass and Ceramics» for January 2024 has been published

Dear Colleagues!

Viktor Osipov, President of the Association "StekloSouz" of Russia, is a Member of the Editorial Board of the Glass and Ceramics magazine.

We inform you that the 1st issue of the monthly scientific and technical magazine “Glass and Ceramics” for 2024 has been published.

Contents of the January issue:

- STRENGTHENING THE LOCAL ELECTRIC FIELD IN THE VISIBILITY OF AG NANOPARTICLES AND THEIR AGGLOMERATES IN ZINC-PHOSPHATE AND SILICATE GLASSES

The spatial distribution of the local electric field (LEF) was studied for various structural configurations of silver nanoparticles (NPs) in silicate and zinc phosphate glasses. The features of this distribution determine the efficiency of energy transfer from plasmonic NPs to rare earth (RE) ions located in their vicinity. The mechanism of energy transfer through field enhancement caused by surface plasmon resonance of particles is dominant for NPs with a size of ≤5 nm and is determined by a number of factors. To clarify their role, the dependences of power lines on the size, spatial distribution, and degree of agglomeration of silver NPs in glass were studied. For this purpose, a visual representation of the spatial distribution of power lines in the vicinity of agglomerates of plasmonic NPs is proposed, which allows for an effective comparative analysis of the nature of the field enhancement in places of hypothetical location of rare earth ions. Based on modeling, a connection has been established between the amplification of the power line intensity and the spatial distribution of such amplification sites relative to the nearest plasmonic particle with the size, degree of agglomeration of NPs, and the presence of small (≈5 nm) particles in the sample along with relatively large ones. It has been shown that the optimal configuration of silver nanoparticles in glass to obtain the maximum average enhancement of field intensity at points of possible location of rare earth ions is an agglomerate of particles with sizes slightly larger than 25 nm and an average distance between the centers of particles of ~30 nm.