Thermoelectric properties of atomic-thin silicene and germanene nano-structures
Thermoelectric properties of atomic-thin silicene and germanene nano-structures
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DOI：
10.1103/physrevb.89.125403
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发表时间：
2013-10
影响因子：
3.7
通讯作者：
K. Yang;S. Cahangirov;A. Cantarero;Á. Rubio;R. D’Agosta
中科院分区：
文献类型：
--
作者：
K. Yang;S. Cahangirov;A. Cantarero;Á. Rubio;R. D’Agosta
利用第一性原理密度泛函方法和热输运和电输运的线性响应研究了一维和二维硅和锗结构的热电性质。我们在这里考虑了二维硅烯和锗烯，以及不同宽度的纳米带。对于纳米带，我们还研究了通过混合硅和锗来纳米结构化这些系统的可能性。我们发现，这些系统在室温下的品质因数是非常高的，高达2.5。
The thermoelectric properties in one- and two-dimensional silicon and germanium structures have been investigated using first-principle density functional techniques and linear response for the thermal and electrical transport. We have considered here the two-dimensional silicene and germanene, together with nano-ribbons of different widths. For the nano-ribbons, we have also investigated the possibility of nano-structuring these systems by mixing silicon and germanium. We found that the figure of merit at room temperature of these systems is remarkably high, up to 2.5.