Colossal thermoelectric power factor in K7/8RhO2

Handle URI:
http://hdl.handle.net/10754/562155
Title:
Colossal thermoelectric power factor in K<sub>7/8</sub>RhO<sub>2</sub>
Authors:
Saeed, Yasir ( 0000-0003-3080-7385 ) ; Singh, Nirpendra ( 0000-0001-8043-0403 ) ; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
The thermoelectric properties of the layered oxides KxRhO 2 (x = 1/2 and 7/8) are investigated by means of the electronic structure, as determined by ab inito calculations and Boltzmann transport theory. In general, the electronic structure of K xRhO 2 is similar to Na xCoO 2, but with strongly enhanced transport. K 7/8RhO 2 exceeds the ultrahigh power factor of Na 0.88CoO 2 reported previously by more than 50%. The roles of the cation concentration and the lattice parameters in the transport properties in this class of compounds are explained. © 2012 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)
Publisher:
Wiley-Blackwell
Journal:
Advanced Functional Materials
Issue Date:
12-Apr-2012
DOI:
10.1002/adfm.201103106
Type:
Article
ISSN:
1616301X
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.authorSaeed, Yasiren
dc.contributor.authorSingh, Nirpendraen
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2015-08-03T09:46:04Zen
dc.date.available2015-08-03T09:46:04Zen
dc.date.issued2012-04-12en
dc.identifier.issn1616301Xen
dc.identifier.doi10.1002/adfm.201103106en
dc.identifier.urihttp://hdl.handle.net/10754/562155en
dc.description.abstractThe thermoelectric properties of the layered oxides KxRhO 2 (x = 1/2 and 7/8) are investigated by means of the electronic structure, as determined by ab inito calculations and Boltzmann transport theory. In general, the electronic structure of K xRhO 2 is similar to Na xCoO 2, but with strongly enhanced transport. K 7/8RhO 2 exceeds the ultrahigh power factor of Na 0.88CoO 2 reported previously by more than 50%. The roles of the cation concentration and the lattice parameters in the transport properties in this class of compounds are explained. © 2012 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim.en
dc.publisherWiley-Blackwellen
dc.subjectdensity functional theoryen
dc.subjectlayered oxidesen
dc.subjectpower factorsen
dc.subjecttransport propertiesen
dc.titleColossal thermoelectric power factor in K<sub>7/8</sub>RhO<sub>2</sub>en
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.identifier.journalAdvanced Functional Materialsen
kaust.authorSaeed, Yasiren
kaust.authorSingh, Nirpendraen
kaust.authorSchwingenschlögl, Udoen
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