期刊
CARBON
卷 90, 期 -, 页码 255-259出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.04.037
关键词
-
资金
- National Natural Science Foundation [51172167, J1210061]
- 973 Program of China [2013CB632502]
As a new carbon allotrope, the recently fabricated graphdiyne has attracted much attention due to its interesting two-dimensional character. Here we demonstrate by multiscale computations that, unlike graphene, graphdiyne has a natural band gap, and simultaneously possess high electrical conductivity large Seebeck coefficient, and low thermal conductivity. At a carrier concentration of 2.74 x 10(11) cm(-2) for holes and 1.62 x 10(11) cm(-2) for electrons, the room temperature ZT value of graphdiyne can be optimized to 3.0 and 4.8, respectively, which makes it an ideal system to realize the concept of phonon-glass and electron-crystal in the thermoelectric community. (C) 2015 Elsevier Ltd. All rights reserved.
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