Photoinduced processes in β-diketonates of Ag and Eu, incorporated into SiO2 aerogel matrix by supercritical fluid impregnation

2014, №4

сс. 61-69

A.O. Rybaltovskii, V.G. Arakcheev, A.N. Bekin, A.F. Danilyuk, V.I. Gerasimova, N.V. Minaev, E.N. Golubeva, O.O. Parenago, V.N. Bagratashvili

Key words: supercritical carbon dioxide, β-diketonates of Ag and Eu, silica aerogel, photoluminescence, silver nanoparticles, plasmon resonance

Silica aerogels with embedded b-diketonates of Ag and Eu molecules were obtained by
impregnation method using supercritical carbon dioxide (SC-CO₂). Impregnation of
aerogel with Eu(tta)₃ molecules gives photoluminescence properties aerogel. Adsorption
of Eu(tta)₃ at silica clusters of aerogel pores leads to a strong broadening of the Stark
components in the spectrum of its photoluminescence. Impregnation of aerogel with
AgFOD molecules and subsequent laser irradiation, causes the formation of silver
nanoparticles in a matrix of aerogel, as a result of AgFOD photolysis and subsequent
diffusion atomic nanoassembly. The formation of filamentous structures of silver
nanoparticles, due to the effects of self-organization caused by self-focusing and laser
light channeling in as formed optical waveguide from nanoparticles. The peculiarities
of the formation of Ag nanoparticles by laser photolysis of AgFOD in aerogel matrix
directly in SC-CO₂ medium are discussed.

Translated article

doi:10.1134/S1990793115080096

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ГОСТ
7.0.100-2018

Рыбалтовский, А.О. Photoinduced processes in β-diketonates of Ag and Eu, incorporated into SiO2 aerogel matrix by supercritical fluid impregnation / А.О. Рыбалтовский, В.Г. Аракчеев, А.Н. Бекин [и др.]. – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2014. – Т. 9. – № 4. – С. 61-69.

TRANSLIT

Rybaltovskij, A.O. Fotoinducirovannye processy v β-diketonatah serebra i evropiya, vvedennyh v matricu aerogelya iz dioksida kremniya metodom sverhkriticheskoj flyuidnoj impregnacii / A.O. Rybaltovskij, V.G. Arakcheev, A.N. Bekin [i dr.]. – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2014. – Т. 9. – № 4. – S. 61-69.

A.O. Rybaltovskii, V.G. Arakcheev, A.N. Bekin, A.F. Danilyuk, V.I. Gerasimova, N.V. Minaev, E.N. Golubeva, O.O. Parenago, V.N. Bagratashvili Photoinduced processes in β-diketonates of Ag and Eu, incorporated into SiO2 aerogel matrix by supercritical fluid impregnation. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 4, 61-69 (2014). https://doi.org/

Photoinduced processes in β-diketonates of Ag and Eu, incorporated into SiO2 aerogel matrix by supercritical fluid impregnation

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