Journal
SEMICONDUCTORS
Volume 44, Issue 3, Pages 366-372Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063782610030164
Keywords
-
Categories
Ask authors/readers for more resources
The microstructure and properties of gold-doped WO3 (WO3:Au) thin films before and after deposition of dispersed Au layers have been studied. It is shown that the gamma-WO2.72 phase arises in WO3:Au layers, which leads to a significant increase in the film conductivity. Deposition of a dispersed gold layer results in an increase in the sensor response to NO2 by several times. The concentration dependences and the dynamics of sensor responses to nitrogen dioxide are described by the analytical expressions derived under the assumption that WO3 films contain grains connected by conducting bridges. An analysis of the experimental data using these expressions made it possible to determine the activation energies of NO2 adsorption and desorption and the adsorption heat.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available