Transient effects of tin oxide CO sensors in the presence of water vapor

Vlachos, DS; Skafidas, PD; Avaritsiotis, JN

dc.contributor.author	Vlachos, DS	en
dc.contributor.author	Skafidas, PD	en
dc.contributor.author	Avaritsiotis, JN	en
dc.date.accessioned	2014-03-01T01:09:35Z
dc.date.available	2014-03-01T01:09:35Z
dc.date.issued	1993	en
dc.identifier.issn	0003-6951	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11100
dc.subject.classification	Physics, Applied	en
dc.subject.other	SURFACES	en
dc.subject.other	GASES	en
dc.subject.other	SNO2	en
dc.title	Transient effects of tin oxide CO sensors in the presence of water vapor	en
heal.type	journalArticle	en
heal.identifier.primary	10.1063/1.110706	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.110706	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	During the experimental study of CO sensitivity of SnO2 resistive-type gas sensors in the presence of water vapor, a transient effect was observed which elucidates the CO sensing mechanism in tin oxide. More precisely, after the removal of CO, an increase of the measured conductance was observed, depending on substrate temperature. An explanation of this phenomenon is proposed, which is based on the conductance modulation due to three different mechanisms: Formate desorption, occupation of lattice sites by oxygen molecules, and diffusion of lattice oxygen vacancies to sensor's bulk.	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	Applied Physics Letters	en
dc.identifier.doi	10.1063/1.110706	en
dc.identifier.isi	ISI:A1993LZ65400016	en
dc.identifier.volume	63	en
dc.identifier.issue	13	en
dc.identifier.spage	1760	en
dc.identifier.epage	1761	en