Email this article Spectroscopic properties of γ-irradiated FemOn–SiO2 composite nanoparticles
- Authors: Smerdov R.S.1, Bocharova T.V.1, Levitskii V.S.2,3, Gareev K.G.3, Moshnikov V.A.3, Terukov E.I.2,3
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Affiliations:
- Peter the Great Saint-Petersburg Polytechnic University
- Scientific and Technical Center of Thin Film Technologies, Ioffe Physical-Technical Institute
- Saint Petersburg Electrotechnical University “LETI,”
- Issue: Vol 58, No 5 (2016)
- Pages: 919-923
- Section: Semiconductors
- URL: https://journal-vniispk.ru/1063-7834/article/view/197446
- DOI: https://doi.org/10.1134/S1063783416050243
- ID: 197446
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Abstract
The colloidal solutions and deposited layers of FemOn–SiO2 composite particles were studied. The colloidal solutions were prepared by precipitation of FemOn on the surface of porous silicon dioxide particles synthesized from a tetraethoxysilane (TEOS) alcohol solution by the sol‒gel method. It was found that, in the visible and near-UV ranges of the absorption spectra, there are six bands typical of conglomerates of FemOn nanoparticles. The investigation of Raman spectra of the samples subjected to laser annealing and γ-irradiation revealed the phase transitions Fe3O4 → γ-Fe2O3 → α-Fe2O3.
About the authors
R. S. Smerdov
Peter the Great Saint-Petersburg Polytechnic University
Email: tatiana.v.bocharova@gmail.com
Russian Federation, Politekhnicheskaya ul. 29, St. Petersburg, 195251
T. V. Bocharova
Peter the Great Saint-Petersburg Polytechnic University
Author for correspondence.
Email: tatiana.v.bocharova@gmail.com
Russian Federation, Politekhnicheskaya ul. 29, St. Petersburg, 195251
V. S. Levitskii
Scientific and Technical Center of Thin Film Technologies, Ioffe Physical-Technical Institute; Saint Petersburg Electrotechnical University “LETI,”
Email: tatiana.v.bocharova@gmail.com
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021; ul. Professora Popova 5, St. Petersburg, 197376
K. G. Gareev
Saint Petersburg Electrotechnical University “LETI,”
Email: tatiana.v.bocharova@gmail.com
Russian Federation, ul. Professora Popova 5, St. Petersburg, 197376
V. A. Moshnikov
Saint Petersburg Electrotechnical University “LETI,”
Email: tatiana.v.bocharova@gmail.com
Russian Federation, ul. Professora Popova 5, St. Petersburg, 197376
E. I. Terukov
Scientific and Technical Center of Thin Film Technologies, Ioffe Physical-Technical Institute; Saint Petersburg Electrotechnical University “LETI,”
Email: tatiana.v.bocharova@gmail.com
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021; ul. Professora Popova 5, St. Petersburg, 197376
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