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dc.contributor.authorHan, Sanggilen
dc.contributor.authorFlewitt, Andrewen
dc.date.accessioned2020-03-31T23:30:55Z
dc.date.available2020-03-31T23:30:55Z
dc.date.issued2020-06-30en
dc.identifier.issn0040-6090
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/303972
dc.description.abstractGrain orientation can be particularly important in devices such as thin film transistors (TFTs) where grain boundaries present a barrier to lateral carrier transport. This paper demonstrates that thin films of nanocrystalline cuprous oxide (Cu₂O) can be grown with control of the grain orientation in the direction of either [111] or [100] perpendicular to the substrate surface using a high target utilization sputtering system. This allows a systematic study of the effect of grain orientation on the carrier mobility in Cu₂O films. It is shown that the carrier mobility in as-deposited films is similar for both grain orientations while [100]-oriented thin films exhibit a higher carrier mobility for lateral conduction than films with a [111] orientation after annealing, which is discussed from the viewpoint of the Urbach energy, crystallinity and surface morphology. This experimental finding suggests that Cu₂O thin films with a [100] surface grain orientation are favorable for device applications such as p-type TFTs where a high in-plane carrier mobility is desired.
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleControl of grain orientation and its impact on carrier mobility in reactively sputtered Cu<inf>2</inf>O thin filmsen
dc.typeArticle
prism.publicationDate2020en
prism.publicationNameThin Solid Filmsen
prism.volume704en
dc.identifier.doi10.17863/CAM.51056
dcterms.dateAccepted2020-03-30en
rioxxterms.versionofrecord10.1016/j.tsf.2020.138000en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-06-30en
dc.contributor.orcidHan, Sanggil [0000-0001-8588-5466]
dc.contributor.orcidFlewitt, Andrew [0000-0003-4204-4960]
dc.identifier.eissn1879-2731
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M013650/1)
cam.orpheus.successMon May 04 07:49:15 BST 2020 - Embargo updated*
cam.orpheus.counter3*
rioxxterms.freetoread.startdate2021-06-30


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International