Commercially viable generation of “green” hydrogen fuel by solar-driven water splitting
requires the design of low-cost photoelectrodes and photo-devices with high …

Up to now, attempts for developing coarse-grained SnO 2-based varistors which exhibit high
nonlinearity property at lower voltage have become a challenge without any prominent …

This paper outlines some details of the conduction mechanism in SnO2-based ceramic
varistors. It is shown that the activation energy of electrical conduction Eσ (the barrier height …

Current–voltage characteristics, temperature dependences of the low-field dc conductivity
and the relative dielectric permittivity of tin dioxide based SnO 2–Co 3 O 4–Nb 2 O 5–Cr 2 O …

The current-voltage characteristics and temperature dependences of electrical conductivity
in SnO₂-Co₃O₄-Nb₂O₅-Cr₂O₃-CuO semiconductor ceramics are studied, and …

In this paper we report humidity sensing studies of undoped and SnO 2 doped WO 3.
Sensitivity is 13.48 MΩ/% RH for WO 3-SnO 2 nanocomposite. Hysteresis is less than 3% for …

A new method for the processing of time-dependent isothermal depolarization current in
oxide varistors is proposed. It involves (i) a new model for kinetics of the depolarization …

Abstract In the tested SnO 2-Co 3 O 4-Nb 2 O 5-Cr 2 O 3-CuO varistor ceramics the adding
of CaO or BaO oxides leads to the decrease of the electric conductivity in the low electric …

The varistor effect takes place in SnO2–Co3O4–Nb2O5–Cr2O3 ceramics with CaO, SrO or
BaO additions prepared by solid-phase sintering and in the same ceramics with CuO, V2O5 …

Electrical properties of SnO 2-Co 3 O 4-Nb 2 O 5-Cr 2 O 3 ceramics sintered at 1100− 1400°
C were studied. Materials exhibit known varistor properties (superlinear and symmetric …