Zeitschriftenartikel:
J. Sama, S. Barth, G. Domènech-Gil, J. Prades, N. Lopez, O. Casals, I. Gracia, C. Cane, A. Romano-Rodriquez:
"Site-selectively grown SnO2NWs networks on micromembranes forefficient ammonia sensing in humid conditions";
Sensors and Actuators B: Chemical,
232
(2016),
S. 402
- 409.
Kurzfassung englisch:
SnO2NWs networks on heated micromembranes have been characterized as ammonia sensors. Theapproach allows achieving reproducible growth and stable and long-lasting ammonia sensors with site-specific grown SnO2NWs. The devices have been tested both in dry and humid conditions showingresponse time down to two minutes. Sensors have been tested up to 1 month, only presenting variationof the base resistance with full retention of the response towards the gaseous analytes. Different concur-rent sensing mechanisms have been identified relating the determined sensing kinetics with previoustheoretical calculations. Specifically, oxygen dissociation seems to play a key role in the overall ammoniasensing sequence. In humid conditions, moisture reduces the response to ammonia but also lowers theactivation energy of the reaction process.
"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.snb.2016.03.091
Elektronische Version der Publikation:
http://publik.tuwien.ac.at/files/publik_254546.pdf
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.