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Thermoelectric Properties of Pb ‐Doped BiCuSeO Ceramics
Author(s) -
Liu Yaochun,
Lan JinLe,
Zhan Bin,
Ding Junxuan,
Liu Yong,
Lin YuanHua,
Zhang Boping,
Nan Cewen
Publication year - 2013
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12528
Subject(s) - thermoelectric effect , materials science , doping , ceramic , figure of merit , seebeck coefficient , microstructure , thermal conductivity , electrical resistivity and conductivity , composite material , thermoelectric materials , fabrication , dimensionless quantity , optoelectronics , electrical engineering , thermodynamics , medicine , physics , alternative medicine , pathology , engineering
A high‐performance thermoelectric BiCuSeO oxyselenides has been prepared by a simple fabrication approach. Phase composition and microstructure analysis indicate that the obtained ceramic samples are almost BiCuSeO phase with plate structure. Our results show that Pb ‐doped BiCuSeO bulks have good electrical conductivity, large Seebeck coefficient, and low thermal conductivity. A large power factor ~672 μ/Wm/K 2 at 573 K can be observed in the BiCuSeO ceramic by the 10% Pb doping, and the dimensionless figure of merit ( ZT ) can reach 0.95 at 873 K, which makes them promising candidates for thermoelectric applications.