Analysis of the refractive indices of TiO2, TiOF2, and TiF4
Language
en
Article de revue
This item was published in
Inorganic Chemistry. 2005, vol. 44, n° 10, p. 3589-3593
American Chemical Society
English Abstract
In an effort to gain insight into how optical properties of insulating materials are affected by a change in chemical composition, we investigated the dielectric functions of titanium dioxide, TiO2, and its fluorine-substituted ...Read more >
In an effort to gain insight into how optical properties of insulating materials are affected by a change in chemical composition, we investigated the dielectric functions of titanium dioxide, TiO2, and its fluorine-substituted phases, TiOF2 and TiF4, by electron energy loss spectroscopy measurements and density functional theory electronic band structure calculations. The refractive indices of these compounds are found to be inversely proportional to their cell volumes per formula unit. This observation was explained by employing the concept of optical channels. Our study indicates that the light-scattering properties of insulating compounds can be controlled by modifying their cell volumes.Read less <
English Keywords
Optical properties
Dielectric functions
Titanium dioxide
TiO2
TiF4
TiOF2
Electron energy loss spectroscopy
Density functional theory
Band structure calculations
Fluorine
Origin
Hal imported