LAPSE:2018.0970
Published Article
LAPSE:2018.0970
Synergistic Optimization of Thermoelectric Performance in P-Type Bi0.48Sb1.52Te₃/Graphene Composite
November 27, 2018
We report the synergistic optimization of the thermoelectric properties in p-type Bi0.48Sb1.52Te₃ by the additional graphene. Highly dense Bi0.48Sb1.52Te₃ + graphene (x wt%, x = 0, 0.05, 0.1 and 0.15) composites have been synthesized by zone-melting followed by spark plasma sintering. With the help of scanning electron microscopy, the graphene has been clearly observed at the edge of the grain in the composites. Due to the additional graphene, the composites show an improved power factor of 4.8 × 10−3 Wm−1K−2 with modified carrier concentration and suppressed lattice thermal conductivity. Consequently, synergistic optimization in electrical and lattice properties by additional graphene leads to a great improvement in the figure of merit ZT (1.25 at 320 K).
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Keywords
Bi0.48Sb1.52Te3, graphene, microstructure, synergistic optimization, thermoelectrical materials
Subject
Suggested Citation
Xie D, Xu J, Liu G, Liu Z, Shao H, Tan X, Jiang J, Jiang H. Synergistic Optimization of Thermoelectric Performance in P-Type Bi0.48Sb1.52Te₃/Graphene Composite. (2018). LAPSE:2018.0970
Author Affiliations
Xie D: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
Xu J: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Liu G: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Liu Z: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Shao H: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Tan X: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jiang J: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jiang H: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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Xu J: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Liu G: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Liu Z: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Shao H: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Tan X: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jiang J: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jiang H: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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Journal Name
Energies
Volume
9
Issue
4
Article Number
E236
Year
2016
Publication Date
2016-03-25
Published Version
ISSN
1996-1073
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Original Submission
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PII: en9040236, Publication Type: Journal Article
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Published Article
LAPSE:2018.0970
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doi:10.3390/en9040236
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[v1] (Original Submission)
Nov 27, 2018
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Nov 27, 2018
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https://psecommunity.org/LAPSE:2018.0970
Original Submitter
Calvin Tsay
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