Enhanced thermoelectric performance in p-type BiSbTe bulk alloy with nanoinclusion of ZnAlO

Journal Article · Mon Jan 10 04:00:00 EST 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3541654· OSTI ID:21518244

Ting, Zhang; Qiushi, Zhang; Jun, Jiang; Zhen, Xiong; Jianmin, Chen; Yulong, Zhang; Wei, Li; Gaojie, Xu ^[1]

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1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201 (China)

p-type BiSbTe/x wt % ZnAlO (x=0, 0.25, 0.5, 0.75, and 1.0) composites were prepared by zone melting method. A peak thermoelectric figure of merit (ZT) of 1.33 at 370 K was achieved for the sample with x=0.75, about 34% higher than that of BiSbTe at the same temperature, making these composites more attractive for commercial applications. This enhancement of ZT can be mainly ascribed to a remarkable increase of the electrical conductivity and a simultaneous decrease of the lattice thermal conductivity by the introduction of ZnAlO nanopowder.

• OSTI ID: 21518244
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 2 Vol. 98; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOY SYSTEMS
ALLOYS
ALUMINATES
ALUMINIUM COMPOUNDS
ANTIMONY ALLOYS
BISMUTH ALLOYS
COMPOSITE MATERIALS
CRYSTAL GROWTH METHODS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRICITY
INCLUSIONS
MATERIALS
MELTING
NANOSTRUCTURES
OXYGEN COMPOUNDS
P-TYPE CONDUCTORS
PARTICLES
PEAKS
PERFORMANCE
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POWDERS
SEMICONDUCTOR MATERIALS
TELLURIUM ALLOYS
TERNARY ALLOY SYSTEMS
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMOELECTRICITY
ZINC COMPOUNDS
ZONE MELTING