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 language | English (US) |
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Pages (from-to) | 2792-2796 |
Number of pages | 5 |
Journal | Advanced Functional Materials |
Volume | 22 |
Issue number | 13 |
DOIs | |
State | Published - Apr 12 2012 |
ASJC Scopus subject areas
- Biomaterials
- Electrochemistry
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics