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Design of Thermal Metamaterials with Excellent Thermal Control Functions by Using Functional Nanoporous Graphene
Author(s) -
Jia Pin-Zhen,
Wu Dan,
Zhang Qian-Qian,
Zhou Wu-Xing,
Fan Zhi-Qiang,
Feng Ye-Xin,
Tang Li-Ming,
Chen Ke-Qiu
Publication year - 2020
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.202000333
Subject(s) - metamaterial , materials science , thermal conductivity , cloak , graphene , thermal , heat flux , nanoporous , optoelectronics , heat transfer , composite material , nanotechnology , mechanics , physics , thermodynamics
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.