Enhanced thermoelectric properties of Pb-doped BiCuSeO ceramics

Jin-Le Lan; Yao-Chun Liu; Bin Zhan; Yuan-Hua Lin; Boping Zhang; Xun Yuan; Wenqing Zhang; Wei Xu; C-W Nan

doi:10.1002/adma.201301675

Enhanced thermoelectric properties of Pb-doped BiCuSeO ceramics

Adv Mater. 2013 Sep 25;25(36):5086-90. doi: 10.1002/adma.201301675. Epub 2013 Jul 30.

Authors

Jin-Le Lan¹, Yao-Chun Liu, Bin Zhan, Yuan-Hua Lin, Boping Zhang, Xun Yuan, Wenqing Zhang, Wei Xu, C-W Nan

Affiliation

¹ State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and, Engineering, Tsinghua University, Beijing, 100084, PR China.

PMID: 23897654
DOI: 10.1002/adma.201301675

Abstract

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.

Keywords: BiCuSeO; nanostructure; thermoelectric.

Publication types

Research Support, Non-U.S. Gov't