Journal
JOURNAL OF NANOMATERIALS
Volume 2013, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2013/210767
Keywords
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Funding
- Natural Science Foundation of China [51374078]
- Programfor New Century Excellent Talents in University (NCET) [10-0323]
- Shu Guang project supported by Shanghai Municipal Education Commissionand Shanghai Education Development Foundation [11SG34]
- Shanghai Rising-Star Program [12QH1400100]
- Shanghai Committee of Science and Technology [13JC1400100]
- Fundamental Research Funds for the Central Universities
- Changjiang Scholars and Innovative Research Team in University [IRT1221]
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Graphene/Bi-2 Te-3 thermoelectric materials were prepared by spark plasma sintering (SPS) using hydrothermal synthesis of the powders as starting materials. The X-ray diffraction (XRD) and field emission scanning electron microscope (FE-SEM) were used to investigate the phase composition and microstructure of the as-prepared materials. Electrical resistivity, Seebeck coefficient, and thermal conductivity measurement were applied to analyze the thermoelectric properties. The effect of graphene on the performance of the thermoelectric materials was studied. The results showed that the maximum dimensionless figure of merit of the graphene/Bi-2 Te-3 composite with 0.2 vol.% graphene was obtained at testing temperature 475K, 31% higher than the pure Bi-2 Te-3.
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