http://www.cnr.it/ontology/cnr/individuo/prodotto/ID167802

Oxide nanobelts as conductometric gas sensors (Articolo in rivista)

Type

Label

Anno

Alternative label

Comini E., Faglia G., Sberveglieri G., Zanotti L. (2006)
Oxide nanobelts as conductometric gas sensors
in Materials and manufacturing processes
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Univ Brescia, Sensor Lab, CNR, INFM, I-25133 Brescia, Italy; CNR, IMEM, I-43100 Parma, Italy (literal)

Titolo

Abstract

Semiconducting oxide nanobelts have been obtained by vapor phase deposition. In this work we present the results obtained using tin oxide nanobelts as conductometric gas sensors. Electrical characterization showed that the nanobelts were sensitive to oxygen and environmental polluting species such as CO as well as ethanol for breath analyzers and food control applications. The sensor response, defined as the relative variation in conductance or resistance due to the introduction of the gas, is 200% for 30 ppm of CO at 623 K and 2500% for 10 ppm of ethanol at 623 K. We have studied the variation of the response as a function of the density of the nanobelts. The results demonstrate the potential of fabricating nanosize sensors using the integrity of a single nanobelt with sensitivity at the level of a few ppb and the necessity to control nanobelts density to optimize the sensing performances. (literal)

Prodotto di

Autore CNR

Insieme di parole chiave

Prodotto

Autore CNR di

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

Insieme di parole chiave di

data.CNR.it