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The dynamics of ultraviolet-induced oxygen vacancy at the surface of insulating SrTiO3(001)

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dc.contributor.authorSuwanwong, S
dc.contributor.authorEknapakul, T
dc.contributor.authorRattanachai, Y
dc.contributor.authorMasingboon, C
dc.contributor.authorRattanasuporn, S
dc.contributor.authorPattanakun, R
dc.contributor.authorNakajima, H
dc.contributor.authorKing, Phil
dc.contributor.authorHodak, S K
dc.contributor.authorMeevasana, Worawat
dc.date.accessioned2016-07-13T23:31:40Z
dc.date.available2016-07-13T23:31:40Z
dc.date.issued2015-11-15
dc.identifier.citationSuwanwong , S , Eknapakul , T , Rattanachai , Y , Masingboon , C , Rattanasuporn , S , Pattanakun , R , Nakajima , H , King , P , Hodak , S K & Meevasana , W 2015 , ' The dynamics of ultraviolet-induced oxygen vacancy at the surface of insulating SrTiO 3 (001) ' , Applied Surface Science , vol. 355 , pp. 210-212 . https://doi.org/10.1016/j.apsusc.2015.06.171en
dc.identifier.issn0169-4332
dc.identifier.otherPURE: 198519327
dc.identifier.otherPURE UUID: 4ea60b7c-33ec-43bc-99f8-0bb8d859b3f1
dc.identifier.otherScopus: 84944315200
dc.identifier.otherWOS: 000363815700031
dc.identifier.urihttps://hdl.handle.net/10023/9128
dc.description.abstractThe effect of ultra-violet (UV) irradiation on the electronic structure and the surface resistance of an insulating SrTiO3(001) crystal is studied in this work. Upon UV irradiation, we shows that the two-dimensional electron gas (2DEG) emerges at the insulating SrTiO3 surface and there is a pronounced change in the surface resistance. By combining the observations of the change in valance band and the resistance change under different environments of gas pressure and gas species, we find that UV-induced oxygen vacancies at the surface plays a major role in the resistance change. The dynamic of the resistance change at different oxygen pressures also suggests an alternative method of low-pressure sensing.
dc.language.isoeng
dc.relation.ispartofApplied Surface Scienceen
dc.rightsCopyright © 2015 Elsevier B.V. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org10.1016/j.apsusc.2015.06.171en
dc.subjectStrontium titanateen
dc.subjectSrTiO3en
dc.subjectUV irradiationen
dc.subjectPressure sensingen
dc.subjectElectronic structureen
dc.subjectARPESen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQCen
dc.titleThe dynamics of ultraviolet-induced oxygen vacancy at the surface of insulating SrTiO3(001)en
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1016/j.apsusc.2015.06.171
dc.description.statusPeer revieweden
dc.date.embargoedUntil2016-07-14
dc.identifier.grantnumberEP/I031014/1en


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