Skip to main content Accessibility help
×
Home

Nanostructured TiO2 and W:TiO2Thin Films by a Novel Sol-Gel Processing for Alcohol Sensing Devices

  • Carlotta Garzella (a1), Elisabetta Comini (a1), Elza Bontempi (a2), Laura E. Depero (a2), Cesare Frigeri (a3) and Giorgio Sberveglieri (a1)...

Abstract

TiO2and W:TiO2 thin films have been prepared by a chemically modified sol-gel technique, that implies hydrolysis and condensation of tetraethylortotitanate in the presence of a polymer dissolved in ethanol. Oxide-polymer films were deposited by dip-coating. Annealing at 500°C results in nanosized structurally stable oxides films. For doping tungsten(V)ethoxide was used in concentration that led to a final W/Ti atomic ratio of 1/33, 5/33, 10/33. The morphological and structural characteristics of thin films were studied through microraman, GIXRD, SEM and TEM. A microstructural comparison between pure and doped TiO2 layers is reported. Ethanol and methanol sensing properties are tested.

Copyright

References

Hide All
1. Garzella, C., Comini, E., Tempesti, E., Frigeri, C. and Sberveglieri, G., Sensors and Actuators B 68,189 (2000).
2. Depero, L.E., Ferroni, M., Guidi, V., Marca, G., Martinelli, G., Nelli, P., Sangaletti, L., Sberveglieri, G., Sensors and Actuators B 45–46, 381 (1996).
3. Sberveglieri, G., Depero, L.E., Groppelli, S. and Nelli, P., Sensors and Actuators B 26–27, 89 (1995).
4. , Haro-Poniatowsky, Roodriguez-Talavera, R., Heredia, M. de la Cruz, Cano-Corona, O., Arroyo-Murillo, R., J. Mat. Res. 9, 2102 (1994).
5. Ratajska, H., J. Therm. Anal. 38, 2109 (1992).
6. Depero, L. E., J. of Solid State Chemistry 104, 470 (1993).
7. Brousse, T., Schleich, D.M., Sensors and Actuators B 31, 77 (1996).
8. Sberveglieri, G., Comini, E., Faglia, G., Atashbar, M.Z., Wlodarsky, W., Sensors and Actuators B 66, 139 (2000).
9. Sberveglieri, G., Depero, L.E., Groppelli, S., Nelli, P., Sensors and Actuators B 26–27, 89 (1995).

Related content

Powered by UNSILO

Nanostructured TiO2 and W:TiO2Thin Films by a Novel Sol-Gel Processing for Alcohol Sensing Devices

  • Carlotta Garzella (a1), Elisabetta Comini (a1), Elza Bontempi (a2), Laura E. Depero (a2), Cesare Frigeri (a3) and Giorgio Sberveglieri (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.