Show simple item record

dc.contributor.authorFlewitt, Andrewen
dc.contributor.authorNiang, KMen
dc.date.accessioned2017-07-20T13:18:21Z
dc.date.available2017-07-20T13:18:21Z
dc.date.issued2017-05-01en
dc.identifier.issn1938-5862
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/265681
dc.description.abstractAmorphous indium gallium zinc oxide (a-IGZO) has been successfully employed commercially as the channel layer in thin film transistors (TFTs) for active-matrix flat panel displays. However, these TFTs are known to suffer from a threshold voltage shift upon application of a gate bias. The threshold voltage shift is reversible through annealing. A similar phenomenon is observed in other TFTs with an amorphous oxide semiconductor channel. The migration of oxygen vacancies is proposed as being the microscopic mechanism causing this effect as it can lead to a change in the equilibrium distribution of defect states in the band gap of the semiconductor. This would manifest itself as a reversible threshold voltage shift in the TFT transfer characteristics, as observed experimentally.
dc.description.sponsorshipThe support of this work by the Engineering and Physical Sciences Research Council (EPSRC) through project EP/M013650/1 is acknowledged.
dc.language.isoenen
dc.publisherElectrochemical Society
dc.titleInstability mechanisms in amorphous oxide semiconductors leading to a threshold voltage shift in thin film transistorsen
dc.typeArticle
prism.endingPage56
prism.issueIdentifier1en
prism.publicationDate2017en
prism.publicationNameECS Transactionsen
prism.startingPage49
prism.volume79en
dc.identifier.doi10.17863/CAM.11333
dcterms.dateAccepted2017-04-24en
rioxxterms.versionofrecord10.1149/07901.0049ecsten
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-05-01en
dc.contributor.orcidFlewitt, Andrew [0000-0003-4204-4960]
dc.identifier.eissn1938-6737
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M013650/1)


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record