Review of thermal transport in phononic crystals
Review of thermal transport in phononic crystals
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DOI：
10.1016/j.mtphys.2022.100613
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发表时间：
2022-01-31
影响因子：
11.5
通讯作者：
Volz, Sebastian
中科院分区：
文献类型：
--
作者：
Nomura, Masahiro;Anufriev, Roman;Volz, Sebastian
纳米级的热输运之所以引起人们的关注，不仅是因为其物理上有趣的特征，如声子的独特行为，因为它们具有明显的弹道和波状性质，而且还因为它在减轻电子和光学器件的散热问题以及热电能量收集方面的潜在应用。在过去的25年里，研究人员已经阐明了各种纳米结构材料的热输运性质，包括声子晶体（pnc）：声子的人工周期结构。pnc结构参数明确，是研究热输运的良好平台。此外，通过干涉来控制热输运是很有趣的，正如在具有弹性波和声音的低频区域所证明的那样。在这篇文章中，我们聚焦于高频声子并回顾了半导体pnc中的热输运。这篇全面的综述提供了对准粒子和波方面的理论和实验方面的最新研究和趋势的理解。(C) 2022作者(s)。Elsevier Ltd.出版。
Thermal transport at the nanoscale level is attracting attention not only because of its physically interesting features such as the peculiar behavior of phonons due to their pronounced ballistic and wave-like properties but also because of its potential applications in alleviating heat dissipation problems in electronic and optical devices and thermoelectric energy harvesting. In the last quarter-century, researchers have elucidated the thermal transport properties of various nanostructured materials, including phononic crystals (PnCs): artificial periodic structures for phonons. PnCs are excellent platforms for investigating thermal transport owing to their well-defined structural parameters. In addition, it is interesting to control thermal transport by interference, as demonstrated in the low-frequency regime with elastic waves and sounds. In this article, we focus on high-frequency phonons and review the thermal transport in semiconductor PnCs. This comprehensive review provides an understanding of recent studies and trends, organized as theoretical and experimental, in terms of the quasiparticle and wave aspects. (C) 2022 The Author(s). Published by Elsevier Ltd.