Abstract
The characterization of SnO 2 thick-film gas sensors made from a homemade binderless paste is given. The Hall effect has been measured together with the conductance to determine the carrier concentration and the mobility. From temperature-stimulated conductance measurements at several fixed temperatures, the range where the intergranular conductance can be reasonably considered to be constant has been explored. The microstructure and morphology of the samples are analysed by TEM and SEM observations. The results confirm for these sensors the possibility of linking the electronic structure of the bulk and the chemical state of the surface by an energy barrier model. Moreover, we correlate the difference between the maximum and the minimum of the barrier energy, Δ E, to the sensitivity to reducing gas.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
