Design of Thermal Metamaterials with Excellent Thermal Control Functions by Using Functional Nanoporous Graphene,Physica Status Solidi-Rapid Research Letters

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Design of Thermal Metamaterials with Excellent Thermal Control Functions by Using Functional Nanoporous Graphene
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-08-10 , DOI: 10.1002/pssr.202000333
Pin-Zhen Jia ₁ , Dan Wu ₁ , Qian-Qian Zhang ₁ , Wu-Xing Zhou ₂ , Zhi-Qiang Fan ₃ , Ye-Xin Feng ₁ , Li-Ming Tang ₁ , Ke-Qiu Chen ₁

Affiliation

Thermal metamaterials can effectively manipulate heat flux to achieve different thermal management functions, such as thermal cloak, concentrator, and rotator. To date, most of these metamaterials are based on macroscopic compound structures, such as metal/polymer. Herein, the concept of thermal metamaterials is extended to two‐dimensional (2D) graphene‐based systems because of their fast response speeds, in contrast to traditional three‐dimensional metamaterials. Three thermal metamaterials with heterogeneous thermal parameters are constructed using nano‐holed graphene, and some extraordinary thermal phenomena, such as effective shielding, accumulation and rotation of heat flux, are observed due to the significant anisotropic thermal conductivity of these 2D systems. Moreover, these thermal phenomena are insensitive to external disturbances. For designing thermal metamaterials, this study provides a novel approach, which can be applied to other 2D thermal functional materials.

中文翻译：

功能纳米多孔石墨烯设计具有优良热控制功能的热超材料

热超材料可以有效地控制热通量，以实现不同的热管理功能，例如热披风，集中器和旋转器。迄今为止，大多数这些超材料都基于宏观化合物结构，例如金属/聚合物。在这里，与传统的三维超材料相比，热超材料的概念因其响应速度快而扩展到了基于二维（2D）石墨烯的系统。使用纳米孔石墨烯构建了具有不同热参数的三种热超材料，由于这些二维系统具有显着的各向异性导热性，因此观察到一些非凡的热现象，例如有效的屏蔽，热通量的积累和旋转。而且，这些热现象对外部干扰不敏感。

更新日期：2020-10-02

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