The near-field radiative heattransfer between graphene/SiC/hBN multilayer structures
The near-field radiative heattransfer between graphene/SiC/hBN multilayer structures
复制标题
石墨烯/SiC/hBN多层结构之间的近场辐射传热
DOI：
10.1088/2053-1591/aacde5
复制
发表时间：
2018
影响因子：
2.3
通讯作者：
Liu Nian Hua
中科院分区：
文献类型：
--
作者：
Hong Xiao Juan;Wang Tong Biao;Zhang De Jian;Liu Wen Xing;Yu Tian Bao;Liao Qing Hua;Liu Nian Hua
我们提出了一种由石墨烯、碳化硅薄膜和六方氮化硼(HBN)块体交替堆积的多层结构来从理论上研究近场辐射换热。与黑体计算结果相比，表面等离子体(SPS)、表面声子极化子(SPhPs)和双曲模(HMS)分别作用于石墨烯、碳化硅和hBN能显著提高换热系数(HTC)。薄碳化硅结构之间的HTC甚至可以大于石墨烯覆盖的hBN结构之间的HTC。由于SPS既可以与hBN支持的HMS偶联，也可以与碳化硅支持的SPhP偶联，因此可以灵活地利用石墨烯的化学势来调节HTC。此外，还详细研究了由石墨烯、hBN薄膜和碳化硅块体依次组成的另一种结构的HTC。研究了元件厚度和真空间隙对两种结构高温超导器件性能的影响。研究结果对近场辐射换热的控制具有一定的参考价值。
We propose a multilayer structure alternately stacked by graphene, silicon carbide (SiC) film, and hexagonal boron nitride (hBN) bulk to theoretically study the near-field radiative heat transfer. Compared with blackbody result, the heat transfer coefficient (HTC) can be significantly enhanced due to the effect of surface plasmons (SPs), surface phonon polaritons (SPhPs), and hyperbolic modes (HMs) supported by graphene, SiC, and hBN, respectively. HTC between the proposed structures with thin SiC can even be larger than that of graphene-covered hBN. Since SPs could be coupled both with HMs supported by the hBN and with SPhPs supported by SiC, HTC can be flexibly modulated by chemical potential of graphene. In addition, HTC of another structure which is composed with graphene, hBN film, and SiC bulk in order is also investigated in detail. The impacts of the thickness of components and vacuum gap on HTCs for both configurations are also studied. The results in this study are helpful to control near-field radiative heat transfer.