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Issue 80, 2014
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Three-dimensional hybridized carbon networks for high performance thermoelectric applications

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Abstract

Thermoelectric properties of three-dimensional covalently connected carbon networks are investigated by using first-principles calculation, Boltzmann transport theory, and nonequilibrium molecular dynamics simulations. It is found that the electronic transport of such networks exhibit “ballistic transport” behavior, similar to single carbon nanotubes. The thermoelectric performance of network structures is significantly enhanced relative to one-dimensional carbon nanotubes, owing to the high power factor and largely reduced thermal conductivity. The ZT value of carbon network (9,0) at intermediate temperature can be increased to 0.78 by n-type doping with a carrier concentration of 3.9 × 1019 cm−3. Therefore carbon networks are expected to be potential candidates for eco-friendly thermoelectric materials.

Graphical abstract: Three-dimensional hybridized carbon networks for high performance thermoelectric applications

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Publication details

The article was received on 24 Jun 2014, accepted on 02 Sep 2014 and first published on 03 Sep 2014


Article type: Paper
DOI: 10.1039/C4RA06149G
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RSC Adv., 2014,4, 42234-42239

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    Three-dimensional hybridized carbon networks for high performance thermoelectric applications

    X. Tan, H. Shao, Y. Wen, H. Liu and G. Liu, RSC Adv., 2014, 4, 42234
    DOI: 10.1039/C4RA06149G

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