Colossal Thermoelectric Power Factor in $K_{7/8}RhO_2$

Yasir Saeed, Nirpendra Singh, Udo Schwingenschlögl

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

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 & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)2792-2796
Number of pages5
JournalAdvanced Functional Materials
Volume22
Issue number13
DOIs
StatePublished - Apr 12 2012

ASJC Scopus subject areas

  • Biomaterials
  • Electrochemistry
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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