论文标题
二维范德华材料的声子非谐和导热率:审查
Phonon anharmonicity and thermal conductivity of two-dimensional van der Waals materials: A review
论文作者
论文摘要
二维(2D)范德华(VDW)材料由于量子限制的影响而具有非凡的热性能,这使它们有望在微电源设备中进行热电能量转换和热管理。在这篇综述中,得出了起源于三个子和四声相互作用的声子非谐度的机理。涉及Grüneisen参数,声子寿命和导热率的2D VDW材料的声子非谐度,并详细概述并得出。在实验和理论上讨论了代表性2D VDW材料的尺寸依赖性导热率。这篇综述将介绍有关如何评估2D VDW材料中的声子非谐调性的基本知识,这将有助于设计与能源传输和转换有关的应用的新结构和材料。
Two-dimensional (2D) van der Waals (vdW) materials have extraordinary thermal properties due to the effect of quantum confinement, making them promising for thermoelectric energy conversion and thermal management in microelectronic devices. In this review, the mechanism of phonon anharmonicity originating from three- and four-phonon interactions is derived. The phonon anharmonicity of 2D vdW materials, involving the Grüneisen parameter, phonon lifetime, and thermal conductivity, is summarized and derived in detail. The size-dependent thermal conductivity of representative 2D vdW materials is discussed experimentally and theoretically. This review will present fundamental and advanced knowledge on how to evaluate the phonon anharmonicity in 2D vdW materials, which will aid the design of new structures and materials for applications related to energy transfer and conversion.