Tunable near-field thermal rectifiers by nanostructures
Tunable near-field thermal rectifiers by nanostructures
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DOI：
10.1016/j.mtphys.2022.100921
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发表时间：
2022-11
影响因子：
11.5
通讯作者：
Lin Jing;Zhuohan Li;H. Salihoglu;Xiumei Liu;S. Shen
中科院分区：
文献类型：
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作者：
Lin Jing;Zhuohan Li;H. Salihoglu;Xiumei Liu;S. Shen
在纳米尺度上操纵热通量的能力在电子器件的热电路和热管理中具有重要意义。在这项工作中，通过采用起伏的表面电流方法和维纳混沌展开方法，我们证明了一个可调的热整流效应的基础上的近场辐射的纳米线和纳米十字结构。由于表面声子极化激元和表面等离子体激元的不同衰减行为，通过调节纳米结构之间的间隔，可以以各种速率双向控制整流。该工作为非接触式智能热调制器件的设计提供了新的途径。
The capability of manipulating heat flux at the nanoscale has important implications in thermal circuits and thermal management of electronics. In this work, by employing both the fluctuating surface current method and the Wiener-chaos expansion method, we demonstrate a tunable thermal rectification effect based on the near-field radiation for nanowire and nanocross structures. Due to the different decay behaviors of surface phonon polaritons and surface plasmon polaritons, the rectification can be bidirectionally controlled at various rates by tuning the separation between the nanostructures. This work provides new pathways for designing contactless smart thermal modulation devices.