Large thermoelectric power factor in Pr-doped SrTiO3-δ ceramics via grain-boundary-induced mobility enhancement

Handle URI:
http://hdl.handle.net/10754/563491
Title:
Large thermoelectric power factor in Pr-doped SrTiO3-δ ceramics via grain-boundary-induced mobility enhancement
Authors:
Mehdizadeh Dehkordi, Arash; Bhattacharya, Sriparna K.; Darroudi, Taghi; Graff, Jennifer W.; Schwingenschlögl, Udo ( 0000-0003-4179-7231 ) ; Alshareef, Husam N. ( 0000-0001-5029-2142 ) ; Tritt, Terry M.
Abstract:
We report a novel synthesis strategy to prepare high-performance bulk polycrystalline Pr-doped SrTiO3 ceramics. A large thermoelectric power factor of 1.3 W m-1 K-1 at 500 °C is achieved in these samples. In-depth investigations of the electronic transport and microstructure suggest that this significant improvement results from a substantial enhancement in carrier mobility originating from the formation of Pr-rich grain boundaries. This work provides new directions to higher performance oxide thermoelectrics as well as possibly other properties and applications of this broadly functional perovskite material. © 2014 American Chemical Society.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS); Functional Nanomaterials and Devices Research Group
Publisher:
American Chemical Society (ACS)
Journal:
Chemistry of Materials
Issue Date:
8-Apr-2014
DOI:
10.1021/cm4040853
Type:
Article
ISSN:
08974756
Sponsors:
The authors wish to acknowledge the Faculty Initiated Collaboration (FIC) competitive grant from KAUST. The authors also wish to acknowledge M. N. Hedhili for XPS measurements and Dr. Jian He for many thoughtful conversations and discussions.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorMehdizadeh Dehkordi, Arashen
dc.contributor.authorBhattacharya, Sriparna K.en
dc.contributor.authorDarroudi, Taghien
dc.contributor.authorGraff, Jennifer W.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.contributor.authorAlshareef, Husam N.en
dc.contributor.authorTritt, Terry M.en
dc.date.accessioned2015-08-03T11:52:46Zen
dc.date.available2015-08-03T11:52:46Zen
dc.date.issued2014-04-08en
dc.identifier.issn08974756en
dc.identifier.doi10.1021/cm4040853en
dc.identifier.urihttp://hdl.handle.net/10754/563491en
dc.description.abstractWe report a novel synthesis strategy to prepare high-performance bulk polycrystalline Pr-doped SrTiO3 ceramics. A large thermoelectric power factor of 1.3 W m-1 K-1 at 500 °C is achieved in these samples. In-depth investigations of the electronic transport and microstructure suggest that this significant improvement results from a substantial enhancement in carrier mobility originating from the formation of Pr-rich grain boundaries. This work provides new directions to higher performance oxide thermoelectrics as well as possibly other properties and applications of this broadly functional perovskite material. © 2014 American Chemical Society.en
dc.description.sponsorshipThe authors wish to acknowledge the Faculty Initiated Collaboration (FIC) competitive grant from KAUST. The authors also wish to acknowledge M. N. Hedhili for XPS measurements and Dr. Jian He for many thoughtful conversations and discussions.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleLarge thermoelectric power factor in Pr-doped SrTiO3-δ ceramics via grain-boundary-induced mobility enhancementen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.contributor.departmentFunctional Nanomaterials and Devices Research Groupen
dc.identifier.journalChemistry of Materialsen
dc.contributor.institutionDepartment of Materials Science and Engineering, Clemson University, Clemson, SC 29634, United Statesen
dc.contributor.institutionDepartment of Physics and Astronomy, Clemson University, Clemson, SC 29634, United Statesen
dc.contributor.institutionElectron Microscope Facility, Clemson Research Park, Clemson University, Clemson, SC 29634, United Statesen
kaust.authorSchwingenschlögl, Udoen
kaust.authorAlshareef, Husam N.en
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