Review
Physics, Multidisciplinary
Yongju Zheng, Huajie Dai, Junyi Wu, Chuanping Zhou, Zhiwen Wang, Rougang Zhou, Wenxin Li
Summary: The development of smart metamaterials has brought about significant changes in various fields, such as communication systems, imaging, and camouflage. The combination of smart metamaterials and 3D printing technology has accelerated the advancement of metamaterials and has immense potential.
FRONTIERS IN PHYSICS
(2022)
Review
Nanoscience & Nanotechnology
Ying Li, Wei Li, Tiancheng Han, Xu Zheng, Jiaxin Li, Baowen Li, Shanhui Fan, Cheng-Wei Qiu
Summary: This review provides a unified perspective on heat transfer control, summarizing complementary paradigms towards the manipulation of physical parameters at different length scales. Thermal conduction and radiation are emphasized in the first two parts, while the third part discusses efforts to actively introduce heat sources or tune material parameters with multiphysical effects.
NATURE REVIEWS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yihui Wang, Wei Sha, Mi Xiao, Cheng-Wei Qiu, Liang Gao
Summary: This study presents an intelligent design framework for thermal metamaterials using a pre-trained deep learning model. It can achieve the desired functional structures of thermal metamaterials with exceptional speed and efficiency, regardless of arbitrary geometry. This research sets up a novel paradigm for the automatic and real-time design of thermal metamaterials.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Huagen Li, Kaipeng Liu, Tianfeng Liu, Run Hu
Summary: Researchers have proposed and realized a homogeneous zero-index thermal metadevice based on temperature modulation, which achieves stable camouflage and super-expansion effects without the energy consumption and inhomogeneity of high-speed rotation. The results of theoretical simulations and experiments confirm a uniform infinite effective thermal conductivity (IETC) and the corresponding thermal functionalities beyond cloaking.
Article
Thermodynamics
Tiancheng Han, Junyi Nangong, Ying Li
Summary: Thermal cloaks have been demonstrated using bilayer or multilayer composites, but the effect of interfacial thermal resistance (ITR) has been ignored. This study experimentally demonstrates an ITR-free thermal cloak made of a single material, eliminating the disturbance caused by ITR. The design is inspired by equivalent thermal conductivity and achieves cloaking effect in steady-state and transient cases.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Zhan Zhu, Xuecheng Ren, Wei Sha, Mi Xiao, Run Hu, Xiaobing Luo
Summary: Thermal metamaterials with adaptive thermal cloaking effects have been studied, allowing for changes in thermal conductivity by adjusting the angular velocities of rotating layers rather than the configuration or constituent materials. This approach improves practicality and real-time application while providing insights for enhancing thermal cloaking effects in the future.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
Hongying He, Weixiang Peng, Hortense Le Ferrand
Summary: This study develops a modular design principle to create bulk thermal metamaterials for thermal rectification at the macroscale. By tuning the microstructural design, the thermal metamaterials can break the symmetry of heat transfer and exhibit either convergent or divergent thermal states. These materials show promise for improved thermal management.
ADVANCED MATERIALS
(2023)
Article
Thermodynamics
Tiancheng Han, Xiuli Yue, Kaihuai Wen, Junyi Nangong
Summary: Transformation theory has provided a novel design methodology for metamaterials, but the experimental realization and performance of transformation-based metamaterials face significant challenges. This study proposes a monolayer thermal meta-device that can function as an invisible sensor or cloak by utilizing scattering cancelling method, showing excellent thermodynamic performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Gaole Dai, Jun Wang
Summary: In the past two decades, the control of physical fields, such as light or acoustics fields, has greatly advanced through the use of transformation media. However, the study of transformation media in thermal convection has been limited due to the complexity of the governing equations. This work demonstrates the validity of using transformation media in thermal convection and provides a foundation for the development of various metadevices in both thermal and flow fields.
Article
Multidisciplinary Sciences
Fuyang Tay, Youming Zhang, Hongyi Xu, Honghui Goh, Yu Luo, Baile Zhang
Summary: By ingeniously designing the geometry of the fluid channel, a fluid-flow cloak without the need for metamaterials has been experimentally realized. The cloak cancels the scattering effect of the obstacle and recovers straight streamlines in the fluid flow. This work sheds new light on conventional fluid control and may find applications in microfluidic devices.
NATIONAL SCIENCE REVIEW
(2022)
Article
Chemistry, Multidisciplinary
Jinxiang Li, Kevin F. MacDonald, Nikolay Zheludev
Summary: Nanomechanical photonic metamaterials exhibit thermal motion-induced fluctuations in optical properties, which can be controlled by light to tune metamaterial transmission. This tuning mechanism provides active control for photonic devices and serves as the basis for various types of sensors.
Article
Nanoscience & Nanotechnology
Yongkang Gong, Kang Li, Nigel Copner, Heng Liu, Meng Zhao, Bo Zhang, Andreas Pusch, Diana L. Huffaker, Sang Soon Oh
Summary: The proposed electrically controlled thermal emitter based on nanophotonic engineering with layered metamaterials demonstrates significantly enhanced emissivity in the broad infrared wavelengths and optical features of a strong photonic bandgap. The electrically driven metamaterial devices are optically and thermally stable at temperatures up to 800K with an electro-optical conversion efficiency of approximately 30%, providing a novel alternative for cost-effective, compact, low glare, and energy-efficient infrared heating.
Article
Chemistry, Multidisciplinary
Yishu Su, Ying Li, Tianzhi Yang, Tiancheng Han, Yuguo Sun, Jian Xiong, Linzhi Wu, Cheng-Wei Qiu
Summary: Janus metamaterials, metasufaces, and monolayers have gained significant attention in nanophotonics, but achieving a diffusive Janus metadevice has been challenging. A path-dependent thermal metadevice is proposed, which can exhibit three distinct thermal behaviors under different heat flow directions. This strategy may provide a new dimension for multifunctional metamaterial devices in the thermal field.
ADVANCED MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yisong Bai, Chuanbao Liu, Yang Li, Jinxu Li, Lijie Qiao, Ji Zhou, Yang Bai
Summary: Mechanical metamaterials provide a feasible approach for achieving customized mechanical and thermal deformation. These metamaterials, constructed with curved bimaterial strips, can exhibit programmable and anisotropic thermal deformation through coding the unit cells. The fabricated metamaterials are verified experimentally and show unusual deformation modes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jun Guo, Guoqiang Xu, Di Tian, Zhiguo Qu, Cheng-Wei Qiu
Summary: This article reports a method for creating passive ultra-conductive heat transport using natural materials. By regulating the local thermal resistance through vertical thermal transport channels, the experimental results demonstrate high heat conductivity without the need for additional energy input. These findings have significant potential in the field of thermal management.
ADVANCED MATERIALS
(2022)
