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

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

DOI:
10.1038/srep01228
复制
发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Cuniberti, Gianaurelio
Cuniberti, Gianaurelio
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Sevincli, Haldun;Sevik, Cem;Cagin, Tahir;Cuniberti, Gianaurelio

文献摘要

参考文献

被引文献

相似文献

我们提出了一种混合纳米结构方案,用于定制石墨烯纳米带的热和热电输运性质。几何结构和同位素簇工程是构成拟议计划的要素。使用基于第一性原理的力常数和哈密顿量,我们表明石墨烯纳米带的热导率可以在室温下降低98.8%,热电优值ZT在T = 800 K时可以高达3.25。 所提出的方案依赖于最近开发的自下而上的制造方法,该方法被证明是可行的,用于以原子精度合成石墨烯纳米带。
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.
DOI: 10.1126/science.1072886
发表时间: 2002-09-27
期刊: SCIENCE
影响因子: 56.9
作者:
Harman, TC;Taylor, PJ;LaForge, BE
通讯作者: LaForge, BE
DOI: 10.1021/jp070186p
发表时间: 2007-07-05
影响因子: 2.9
作者:
Aradi, B.;Hourahine, B.;Frauenheim, Th.
通讯作者: Frauenheim, Th.
DOI: 10.1038/nature06381
发表时间: 2008-01-10
期刊: NATURE
影响因子: 64.8
作者:
Hochbaum, Allon I.;Chen, Renkun;Yang, Peidong
通讯作者: Yang, Peidong
DOI: 10.1021/nl0731872
发表时间: 2008-03-01
期刊: NANO LETTERS
影响因子: 10.8
作者:
Balandin, Alexander A.;Ghosh, Suchismita;Lau, Chun Ning
通讯作者: Lau, Chun Ning
DOI: 10.1063/1.2907977
发表时间: 2008-04-14
影响因子: 4
作者:
Ghosh, S.;Calizo, I.;Lau, C. N.
通讯作者: Lau, C. N.