Thermoelectric properties of [Ca2CoO3−δ][CoO2]1,62 as a function of Co/Ca defects and Co3O4 inclusions

The misfit-layered cobalt oxide [Ca2-wCoO3-δ][CoO2]1.62 is a promising material for high-temperature thermoelectric heat recovery. Here, we show that discrepancies in the numerously reported thermoelectric performances can result from Co3O4 impurities or a change of the defects, i.e., the relative C...

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Veröffentlicht in:	Journal of applied physics 2017-06, Vol.121 (21)
Hauptverfasser:	Büttner, Gesine, Populoh, Sascha, Xie, Wenjie, Trottmann, Matthias, Hertrampf, Jan, Döbeli, Max, Karvonen, Lassi, Yoon, Songhak, Thiel, Philipp, Niewa, Rainer, Weidenkaff, Anke
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied physics Cobalt oxides Current carriers Defects Electrical resistivity Figure of merit Heat recovery Impurities Miscibility Reduction Thermal conductivity Thermoelectric materials Thermoelectricity
Online-Zugang:	Volltext
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