title: Enhanced thermoelectric properties of Pb-doped BiCuSeO ceramics.
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.
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and, Engineering, Tsinghua University, Beijing, 100084, PR China.
authors.forename: Jin-Le
authors.initials: JL
authors.lastname: Lan
authors.forename: Yao-Chun
authors.initials: YC
authors.lastname: Liu
authors.forename: Bin
authors.initials: B
authors.lastname: Zhan
authors.forename: Yuan-Hua
authors.initials: YH
authors.lastname: Lin
authors.forename: Boping
authors.initials: B
authors.lastname: Zhang
authors.forename: Xun
authors.initials: X
authors.lastname: Yuan
authors.forename: Wenqing
authors.initials: W
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: C-W
authors.initials: CW
authors.lastname: Nan
keywords: BiCuSeO; nanostructure; thermoelectric