Thermoelectric transport in graphene and 2D layered materials
Thermoelectric transport in graphene and 2D layered materials
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DOI：
10.1080/15567265.2018.1520762
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发表时间：
2019-04-03
影响因子：
4.1
通讯作者：
Zebarjadi, Mona
中科院分区：
文献类型：
--
作者：
Markov, Maxime;Zebarjadi, Mona
在90年代早期，Hicks和Dresselhaus提出低维材料由于其状态密度的尖锐特征而在热电应用中具有优势，导致高Seebeck系数，并且可能具有高热电功率因数。二维（2D）材料是研究热电应用的最新一类低维材料。2004年，石墨烯（一种单层碳原子）的实验剥离引发了一系列致力于二维材料在电子，热学和光学应用方面的研究。可以混合和匹配并堆叠2D层以形成货车德瓦尔斯异质结构。这种结构具有极端的各向异性传输特性。在这些结构中的平面内和跨平面的热电输运是感兴趣的。在这篇简短的综述文章中，我们首先回顾了迄今为止在石墨烯热电输运性质研究中取得的进展，石墨烯是研究最广泛的2D材料，作为有趣的面内热电性质的代表。然后，我们把注意力转向层状材料，在他们的交叉平面方向，突出他们的作用，作为潜在的结构，固态电子能量发电机和冷却器。
In early 90s, Hicks and Dresselhaus proposed that low dimensional materials are advantages for thermoelectric applications due to the sharp features in their density-of-states, resulting in a high Seebeck coefficient and, potentially, in a high thermoelectric power factor. Two-dimensional (2D) materials are the latest class of low dimensional materials studied for thermoelectric applications. The experimental exfoliation of graphene, a single-layer of carbon atoms in 2004, triggered an avalanche of studies devoted to 2D materials in view of electronic, thermal, and optical applications. One can mix and match and stack 2D layers to form van der Waals hetero-structures. Such structures have extreme anisotropic transport properties. Both in-plane and cross-plane thermoelectric transport in these structures are of interest. In this short review article, we first review the progress achieved so far in the study of thermoelectric transport properties of graphene, the most widely studied 2D material, as a representative of interesting in-plane thermoelectric properties. Then, we turn our attention to the layered materials, in their cross-plane direction, highlighting their role as potential structures for solid-state thermionic power generators and coolers.