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dc.contributor.authorRassu, Pietro
dc.contributor.authorMalfatti, Luca
dc.contributor.authorCarboni, Davide
dc.contributor.authorCasula, Maria F.
dc.contributor.authorGarroni, Sebastiano 
dc.contributor.authorZampetti, Emiliano
dc.contributor.authorMacagnano, Antonella
dc.contributor.authorBearzotti, Andrea
dc.contributor.authorInnocenzi, Plinio
dc.date.accessioned2021-04-27T09:41:21Z
dc.date.available2021-04-27T09:41:21Z
dc.date.issued2017-12
dc.identifier.issn2050-7526
dc.identifier.urihttp://hdl.handle.net/10259/5736
dc.description.abstractThe application of titania materials to gas sensing devices based on thin films are of limited utility because they only operate at a high working temperature and exhibit in general a low sensitivity. To overcome these constraints, a new type of oxygen sensor based on mesoporous titania thin films working at room temperature under UV irradiation has been developed. The increased density of charge carriers induced by the photoconductive effect, has been used to enhance the sensitivity of the thin oxide layers. Mesostructured titania films have been prepared via self-assembly and thermal processing to remove the organic template obtaining anatase nanocrystals. The mesoporous films show a striking decrease of the current in the presence of oxygen that acts as an electron scavenger. Mesoporous samples exhibit a much higher response with respect to dense titania, due to the higher surface area and the larger number of surface defects.en
dc.description.sponsorshipRAS is acknowledged for funding this project through CRP 30 L.R. 7/2007 ‘‘Bando Capitale Umano ad Alta Qualificazione annualita` 2015’’. This work was partially supported by the project ‘‘Mi ADATTI E L’ABBATTI’’- INSTM-Regione Lombardia project INSTMRL6.es
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherRoyal Society of Chemistryes
dc.relation.ispartofJournal of Materials Chemistry C. 2017, V. 5, n. 45, p. 11815-11823es
dc.subject.otherMaterialeses
dc.subject.otherMaterialsen
dc.subject.otherEnsayos (Tecnología)es
dc.subject.otherTestingen
dc.titleMesoscale organization of titania thin films enables oxygen sensing at room temperatureen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1039/C7TC03397Des
dc.identifier.doi10.1039/C7TC03397D
dc.relation.projectIDinfo:eu-repo/grantAgreement/Regione Lombardia/INSTMRL6
dc.identifier.essn2050-7534
dc.journal.titleJournal of Materials Chemistry Ces
dc.volume.number5es
dc.issue.number45es
dc.page.initial11815es
dc.page.final11823es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones


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