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dc.contributor.authorDehkordi, Arash Mehdizadeh
dc.contributor.authorBhattacharya, Sriparna
dc.contributor.authorDarroudi, Taghi
dc.contributor.authorKarakaya, Mehmet
dc.contributor.authorKucera, Courtney
dc.contributor.authorBallato, John
dc.contributor.authorAdebisi, Rasheed
dc.contributor.authorGladden, Joseph R.
dc.contributor.authorPodila, Ramakrishna
dc.contributor.authorRao, Apparao M.
dc.contributor.authorAlshareef, Husam N.
dc.contributor.authorTRITT, TERRY M.
dc.date.accessioned2018-12-31T13:57:50Z
dc.date.available2018-12-31T13:57:50Z
dc.date.issued2018-11-14
dc.identifier.citationDehkordi AM, Bhattacharya S, Darroudi T, Karakaya M, Kucera C, et al. (2018) Optimizing thermal conduction in bulk polycrystalline SrTiO3−δ ceramics via oxygen non-stoichiometry. MRS Communications 8: 1470–1476. Available: http://dx.doi.org/10.1557/mrc.2018.220.
dc.identifier.issn2159-6859
dc.identifier.issn2159-6867
dc.identifier.doi10.1557/mrc.2018.220
dc.identifier.urihttp://hdl.handle.net/10754/630632
dc.description.abstractWhile SrTiO3 exhibits promising electronic transport properties, its high thermal conductivity (κ) is detrimental for its use as a thermoelectric material. Here, we investigate the influence of oxygen non-stoichiometry on κ in bulk SrTiO3 ceramics. A significant reduction in κ was achieved in oxygen deficient SrTiO3−δ, owing to the presence of oxygen vacancies that act as phonon scattering centers. Upon oxidation of SrTiO3−δ, the κ of pristine SrTiO3 was recovered, suggesting that oxygen vacancies were indeed responsible for the reduction in κ. Raman spectroscopy was used as an independent tool to confirm the reduction of oxygen vacancies in SrTiO3−δ upon oxidation.
dc.description.sponsorshipThe research was supported by KAUST-Clemson Faculty Initiated collaboration grant. The authors would like to thank W.G. Nilsen and J.G. Skinner[35] for the reprint their Raman spectra to directly compare with our Raman spectra. The authors would like to acknowledge useful discussions with Dr. Colin McMillen (Clemson University) on the XRD analysis of these samples and Mr. Herbert Behlow on stoichiometric analysis.
dc.publisherCambridge University Press (CUP)
dc.relation.urlhttps://www.cambridge.org/core/journals/mrs-communications/article/optimizing-thermal-conduction-in-bulk-polycrystalline-srtio3-ceramics-via-oxygen-nonstoichiometry/110A4233BE4BDB693A5968757939B397
dc.titleOptimizing thermal conduction in bulk polycrystalline SrTiO3−δ ceramics via oxygen non-stoichiometry
dc.typeArticle
dc.contributor.departmentFunctional Nanomaterials and Devices Research Group
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalMRS Communications
dc.contributor.institutionDepartment of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA
dc.contributor.institutionDepartment of Physics and Astronomy, Clemson Nanomaterials Institute, Clemson University, Clemson, SC 29634, USA
dc.contributor.institutionElectron Microscope Facility, Clemson Research Park, Clemson University, Clemson, SC 29634, USA
dc.contributor.institutionCenter for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, SC 29634, USA
dc.contributor.institutionDepartment of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA
kaust.personAlshareef, Husam N.
dc.date.published-online2018-11-14
dc.date.published-print2018-12


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