New insights on the synthesis and electronic transport in bulk polycrystalline Pr-doped SrTiO3−δ

Handle URI:
http://hdl.handle.net/10754/344291
Title:
New insights on the synthesis and electronic transport in bulk polycrystalline Pr-doped SrTiO3−δ
Authors:
Dehkordi, Arash Mehdizadeh ( 0000-0001-7388-0174 ) ; Bhattacharya, Sriparna; Darroudi, Taghi; Alshareef, Husam N. ( 0000-0001-5029-2142 ) ; Tritt, Terry M.
Abstract:
Recently, we have reported a significant enhancement in the electronic and thermoelectric properties of bulk polycrystalline SrTiO3 ceramics via praseodymium doping. This improvement was originated from the simultaneous enhancement in the thermoelectric power factor and reduction in thermal conductivity, which was contributed to the non-uniform distribution of Pr dopants. In order to further understand the underlying mechanism, we herein investigate the role of praseodymium doping source (Pr2O3 versus Pr6O11) on the synthesis and electronic transport in Pr-doped SrTiO3 ceramics. It was observed that the high-temperature electronic transport properties are independent of the choice of praseodymium doping source for samples prepared following our synthesis strategy. Theoretical calculations were also performed in order to estimate the maximum achievable power factor and the corresponding optimal carrier concentration. The result suggests the possibility of further improvement of the power factor. This study should shed some light on the superior electronic transport in bulk polycrystalline Pr-doped SrTiO3 ceramics and provide new insight on further improvement of the thermoelectric power factor.
KAUST Department:
Materials Science and Engineering Program
Citation:
New insights on the synthesis and electronic transport in bulk polycrystalline Pr-doped SrTiO3−δ 2015, 117 (5):055102 Journal of Applied Physics
Publisher:
AIP Publishing
Journal:
Journal of Applied Physics
Issue Date:
7-Feb-2015
DOI:
10.1063/1.4905417
Type:
Article
ISSN:
0021-8979; 1089-7550
Additional Links:
http://scitation.aip.org/content/aip/journal/jap/117/5/10.1063/1.4905417
Appears in Collections:
Articles; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorDehkordi, Arash Mehdizadehen
dc.contributor.authorBhattacharya, Sriparnaen
dc.contributor.authorDarroudi, Taghien
dc.contributor.authorAlshareef, Husam N.en
dc.contributor.authorTritt, Terry M.en
dc.date.accessioned2015-02-08T07:48:41Z-
dc.date.available2015-02-08T07:48:41Z-
dc.date.issued2015-02-07en
dc.identifier.citationNew insights on the synthesis and electronic transport in bulk polycrystalline Pr-doped SrTiO3−δ 2015, 117 (5):055102 Journal of Applied Physicsen
dc.identifier.issn0021-8979en
dc.identifier.issn1089-7550en
dc.identifier.doi10.1063/1.4905417en
dc.identifier.urihttp://hdl.handle.net/10754/344291en
dc.description.abstractRecently, we have reported a significant enhancement in the electronic and thermoelectric properties of bulk polycrystalline SrTiO3 ceramics via praseodymium doping. This improvement was originated from the simultaneous enhancement in the thermoelectric power factor and reduction in thermal conductivity, which was contributed to the non-uniform distribution of Pr dopants. In order to further understand the underlying mechanism, we herein investigate the role of praseodymium doping source (Pr2O3 versus Pr6O11) on the synthesis and electronic transport in Pr-doped SrTiO3 ceramics. It was observed that the high-temperature electronic transport properties are independent of the choice of praseodymium doping source for samples prepared following our synthesis strategy. Theoretical calculations were also performed in order to estimate the maximum achievable power factor and the corresponding optimal carrier concentration. The result suggests the possibility of further improvement of the power factor. This study should shed some light on the superior electronic transport in bulk polycrystalline Pr-doped SrTiO3 ceramics and provide new insight on further improvement of the thermoelectric power factor.en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/jap/117/5/10.1063/1.4905417en
dc.rightsArchived with thanks to Journal of Applied Physics.en
dc.subjectDopingen
dc.subjectPowdersen
dc.subjectCarrier densityen
dc.subjectCeramicsen
dc.subjectX-ray diffractionen
dc.titleNew insights on the synthesis and electronic transport in bulk polycrystalline Pr-doped SrTiO3−δen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalJournal of Applied Physicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634, USAen
dc.contributor.institutionDepartment of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, USAen
dc.contributor.institutionElectron Microscope Facility, Clemson Research Park, Clemson University, Clemson, South Carolina 29634, USAen
dc.contributor.institutionDepartment of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634, USAen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAlshareef, Husam N.en
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