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Sci Rep. 2013;3:1228. doi: 10.1038/srep01228. Epub 2013 Feb 6.

A bottom-up route to enhance thermoelectric figures of merit in graphene nanoribbons.

Author information

1
Institute for Materials Science and Max Bergmann Center of Biomaterials, Dresden University of Technology, 01062 Dresden, Germany. haldun.sevincli@nano.tu-dresden.de

Abstract

We propose a hybrid nano-structuring scheme for tailoring thermal and thermoelectric transport properties of graphene nanoribbons. Geometrical structuring and isotope cluster engineering are the elements that constitute the proposed scheme. Using first-principles based force constants and Hamiltonians, we show that the thermal conductance of graphene nanoribbons can be reduced by 98.8% at room temperature and the thermoelectric figure of merit, ZT, can be as high as 3.25 at T = 800 K. The proposed scheme relies on a recently developed bottom-up fabrication method, which is proven to be feasible for synthesizing graphene nanoribbons with an atomic precision.

PMID:
23390578
PMCID:
PMC3565174
DOI:
10.1038/srep01228
[Indexed for MEDLINE]
Free PMC Article

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