Investigation into the Electrical and Optical Properties of Sodium Nitrite and Sodium Nitrate Nanoparticles in Regular Porous Matrices

Abstract

New nanocomposites based on zeolites (NaA-NaNO 2 , NaA-NaNO 3 ) and opals (o-NaNO 2 , o-NaNO 3 ) that contain sodium nitrite or sodium nitrate nanoparticles in cages of regular porous matrices are prepared. The nanocomposites are characterized by scanning electron microscopy, diffuse reflectance spectroscopy, and electrical measurements.

Structural and ferroelectric properties of spray deposited sodium nitrite:poly(vinyl alcohol) composite films

“…35,36 Therefore the observed values of dissipation factor in the present films are reasonable. In general, the energy dissipation arises due to the resistive loss and/or pure dielectric loss.…”

Phase transitions and macroscopic properties of NaNO3 embedded into porous glasses

“…Dielectric measurements have shown that nanostructured sodium nitrate (NaNO 3 ) demonstrates very high dielectric permittivity (like sodium nitrite) approaching melting temperature [9]. NaNO 3 is an ionic-molecular crystal with planar (as NaNO 2 ) anions NO − 3 but does not undergo ferroelectric PT.…”

First principle local density approximation description of the electronic properties of ferroelectric sodium nitrite

“…The semi-empirical LCAO work of El-Dib and Hassan [8], for room temperature (293.15 K), found a band gap of 3.24 eV. The scanning electron microscopy, diffuse reflectance spectroscopy, and electrical measurements study of Balabinskaya et al [9], at a temperature of 300 K , reported an absorption edge of 3.0 eV.…”