Enhanced Thermoelectric Properties of Pb-doped BiCuSeO Ceramics

Enhanced Thermoelectric Properties of Pb-doped BiCuSeO Ceramics

A high‐performance thermoelectric oxyselenide BiCuSeO ceramic with ZT > 1.1 at 823 K and higher average ZT value (ZTave ≈0.8) is obtained. The heavy doping element and nanostructures can effectively tune its electronic structure, hole concentration, and thermal conductivity, resulting in substant...

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Veröffentlicht in:Advanced materials (Weinheim) 2013-09, Vol.25 (36), p.5086-5090
Hauptverfasser: Lan, Jin-Le, Liu, Yao-Chun, Zhan, Bin, Lin, Yuan-Hua, Zhang, Boping, Yuan, Xun, Zhang, Wenqing, Xu, Wei, Nan, C.-W.
Format: Artikel
Sprache:eng
Schlagworte:
BiCuSeO
Ceramics
Electronic structure
Lead (metal)
Nanocomposites
Nanomaterials
Nanostructure
Thermal conductivity
thermoelectric
Thermoelectricity
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Zusammenfassung:A high‐performance thermoelectric oxyselenide BiCuSeO ceramic with ZT > 1.1 at 823 K and higher average ZT value (ZTave ≈0.8) is obtained. The heavy doping element and nanostructures can effectively tune its electronic structure, hole concentration, and thermal conductivity, resulting in substantially enhanced mobility, power factor, and thus ZT value. This work provides a path to high‐performance thermoelectric ceramics.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201301675