Abstract
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.
© 2018 Optical Society of America
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription