| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9700907 | Sensors and Actuators B: Chemical | 2005 | 5 Pages |
Abstract
Polycrystalline WO3 films were fabricated through thick film technology. Stimulated temperature measurements showed that the intergranular Schottky barrier is not high enough to apply the depletion approximation to evaluate the fundamental parameters related to the sensing properties. Therefore, a semi-analytical approach to the Poisson's equation with the complete charge density was chosen. As a result, we could estimate the dependence on frequency of both apparent permittivity and depletion region width by impedance spectroscopy.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
C. Malagù, M.C. Carotta, S. Gherardi, V. Guidi, B. Vendemiati, G. Martinelli,