DOI: 10.17586/1023-5086-2018-85-07-03-10
УДК: 535.343.32
Determining the size dependence in the absorption spectra of rutile nanoparticles
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Попова Е.В., Латышев А.Н., Овчинников О.В. Определение размерной зависимости в спектрах поглощения наночастиц рутила // Оптический журнал. 2018. Т. 85. № 7. С. 3–10. http://doi.org/10.17586/1023-5086-2018-85-07-03-10
Popova E.V., Latyshev A.N., Ovchinnikov O.V. Determining the size dependence in the absorption spectra of rutile nanoparticles [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 7. P. 3–10. http://doi.org/10.17586/1023-5086-2018-85-07-03-10
E. V. Popova, A. N. Latyshev, and O. V. Ovchinnikov, "Determining the size dependence in the absorption spectra of rutile nanoparticles," Journal of Optical Technology. 85(7), 377-382 (2018). https://doi.org/10.1364/JOT.85.000377
This paper discusses the optical absorption spectra of ensembles of titanium dioxide nanocrystals of size 2.0–3.5 nm, obtained by mechanically crushing microcrystalline rutile powder, followed by fractionation of an aqueous suspension of the material and stabilization of the lightest selected fractions in a gelatin matrix. It is established from an analysis of the electron-diffraction patterns that ensembles of rutile nanocrystals are formed. A size effect is found in the spectra of the absorption-efficiency factor of rutile nanocrystals with mean diameters 3.5–2.0 nm, the value of which was 0.2–0.5 eV, respectively.
optical absorption spectra, titanium dioxide, rutile, size effect, fractionation, electron diffraction
OCIS codes: 300.1030, 160.4236, 160.4760, 160.6000
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