4.1.1 Kelvin probe study of the gas sensing properties of porphyrins-coated ZnO nanorods
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
- 4.1 Electronic Potential-based Sensor
- Y. Sivialingam, G. Magna, E. Martinelli, A. Catini, A. D'Amico, C. Di Natale - Department of Electronic Engineering, University of Rome Tor Vergata (Italy), G. Pomarico, R. Paolesse - Department of Chemical Science and Technology, University of Rome Tor Vergata (Italy)
- 319 - 322
Hybrid materials formed by layers of porphyrins onto ZnO surface show an interesting combination of photonic and gas sensing properties. In this paper, we investigate, with the Kelvin probe technique, the changes of the surface potential of porphyrins coated ZnO nanowires induced by concurrent adsorption of gas and visible light illumination.