Abstract
A nanocomposite in the form of monodisperse spherical mesoporous silica particles (mSiO2) filled with GaN:Eu3+ is synthesized by the template method. The method is based on the capillary impregnation of pores of mSiO2 particles with a melt of crystal hydrates of gallium and europium (0.22 wt %) nitrates, followed by thermal decomposition and ammonia treatment. It is shown that nanocomposite particles contain hexagonal GaN:Eu3+, are of spherical shape, monodisperse and do not coalesce with each other. The photoluminescence spectra of the mSiO2/GaN:Eu3+ particles show a group of lines characteristic of intracenter transitions in Eu3+.
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ACKNOWLEDGMENTS
The study was carried out in part using equipment of the Collective Use Center “Materials science and diagnostics in advanced technologies.”
The study was financially supported by the Russian Foundation for Basic Research (project no. 15-52-12011) and by DFG under ICRC TRR 160.
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Translated by M. Tagirdzhanov
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Stovpiaga, E.Y., Eurov, D.A., Kurdyukov, D.A. et al. Template Synthesis of Monodisperse Spherical Nanocomposite SiO2/GaN:Eu3+ Particles. Semiconductors 52, 1123–1128 (2018). https://doi.org/10.1134/S1063782618090208
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DOI: https://doi.org/10.1134/S1063782618090208