Article
Optics
Wenwen Liang, Zhiheng Zheng, Lei Wang, Wei Yu
Summary: This paper proposes a near-field radiative thermal switch made of silicon and graphene-covered silicon dioxide plates, and explores its potential applications and optimization strategies in micro/nanoscale thermal management by calculating thermal transmission modes under different parameters.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2021)
Article
Materials Science, Multidisciplinary
Y. Liu, M. Antezza, Y. Zheng
Summary: This study proposes an intelligent radiative thermostat that combines passive radiative cooling and near-field radiative thermal diode for temperature regulation at room temperature. The results show that the system can effectively modulate the temperature and stabilize it within a controllable range.
MATERIALS TODAY PHYSICS
(2022)
Article
Thermodynamics
Xiaohu Wu, Ceji Fu
Summary: The study found that by modulating through relative rotation, near-field radiative heat transfer between different hyperbolic materials can achieve a higher modulation contrast, providing a new approach for designing high-performance near-field radiative modulators.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Materials Science, Multidisciplinary
Lin Jing, Zhuo Li, Hakan Salihoglu, Xiu Liu, Sheng Shen
Summary: This study demonstrates a tunable thermal rectification effect at the nanoscale by tuning the separation between nanostructures, providing new pathways for designing contactless smart thermal modulation devices.
MATERIALS TODAY PHYSICS
(2022)
Article
Thermodynamics
Jihong Zhang, Bo Wang, Congying Li, Xiyuan Li
Summary: In this study, a theoretical enhancement of near-field thermal radiation between stacked arrangement of graphene sheet and Bi2Se3 slab is reported, due to the coupling of hyperbolic phonon polaritons and surface plasmon polaritons. It is found that tuning the chemical potential of graphene and the thickness of Bi2Se3 film can efficiently modulate the near-field thermal radiation, which may be helpful for microscale and nanoscale energy saving and radiative cooling applications.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Bo Wang, Jihong Zhang, Congying Li
Summary: In this theoretical study, a three-body near-field radiative heat transfer (NFRHT) system is investigated, where the heat transfer can be tuned by changing the vacuum gap and the chemical potential of graphene. The results of this study provide theoretical guidance for experimental and practical applications of near-field thermal radiation and are significant for temperature control in NFRHT structures.
RESULTS IN PHYSICS
(2022)
Article
Thermodynamics
Yue Yang, Bin Li, Yizhi Hu, Hao Wang, Xianglin Tang, Lei Wang, Yonggang Zhu
Summary: A thermal stabilizer utilizing negative thermal expansion and near-field thermal radiation sensitivity has been proposed in this study, which can self-regulate heat flow to maintain stability regardless of external temperature fluctuations. Numerical results demonstrate that this design significantly reduces heat flow fluctuations, providing an effective solution for the stability of thermal circuits.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Andrew Butler, Christos Argyropoulos
Summary: Passive radiative cooling is an important technology in renewable energy research, and this study presents a stretchable radiative cooling design that can significantly reduce the radiated power through mechanical strain, enabling efficient adaptive thermal control of various objects.
APPLIED THERMAL ENGINEERING
(2022)
Article
Physics, Multidisciplinary
Stephen Sanders, Lauren Zundel, Wilton J. M. Kort-Kamp, Diego A. R. Dalvit, Alejandro Manjavacas
Summary: The study presents a theoretical framework for describing the temporal dynamics of radiative heat transfer in ensembles of nanostructures using an eigenmode expansion. The results reveal fundamental principles governing the thermalization of collections of nanostructures.
PHYSICAL REVIEW LETTERS
(2021)
Article
Thermodynamics
Minggang Luo, Junming Zhao, Linhua Liu
Summary: The near-field radiative heat transfer in nanoparticle systems is still not well understood and existing theories cannot be directly applied to systems with a large number of particles. To address this issue, researchers derived a continuum-scale governing equation from the particle-scale formulation and obtained a new formula for the radiative thermal conductivity tensor, which can be used to calculate the thermal conductivity in arbitrary multi-dimensional particulate systems with many-body interactions.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Review
Physics, Multidisciplinary
Jinlin Song, Qiang Cheng, Bo Zhang, Lu Lu, Xinping Zhou, Zixue Luo, Run Hu
Summary: Near-field radiative heat transfer, governed by evanescent waves, provides a platform for understanding the transport behavior of nonradiative photons and potential applications in energy harvesting and thermal management at the nanoscale. In nature, heat transfer often involves multiple bodies rather than just two, with mutual interactions between objects playing a crucial role in practical applications. Significant advancements in many-body NFRHT have been made in the past decade, revealing unique heat transport phenomena and applications.
REPORTS ON PROGRESS IN PHYSICS
(2021)
Article
Engineering, Environmental
Si-Yuan Liao, Xiao-Yun Wang, Hai-Peng Huang, Yu-Ying Shi, Qiao-Feng Wang, You-Gen Hu, Peng-Li Zhu, Rong Sun, Ching-Ping Wong, Yan-Jun Wan
Summary: Flexible and intelligent vanadium dioxide/cellulose nanofiber shielding composites were designed and fabricated, showing a controllable electromagnetic response based on the reversible metal-to-insulator transition characteristic of vanadium dioxide by thermal stimuli. The composites demonstrated tunable shielding effectiveness in the frequency range of 8.2-12.4 GHz and the ability to control wireless transmission. Additionally, they exhibited outstanding near-field shielding performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Qijun Ma, Xue Chen, Qisen Xiong, Leyong Jiang, Yuanjiang Xiang
Summary: The nonreciprocal surface modes in Weyl semimetal and the nonreciprocal photon occupation number on a graphene surface can be used to manipulate the nonreciprocal near-field energy transfer. In this study, the researchers investigated the near-field radiative heat flux transfer between a graphene heterostructure supported by a magnetic WSM and a twist-Weyl semimetal (T-WSM). They found that the transfer of near-field radiative heat flux can be caused by nonequilibrium fluctuations induced by drift currents. Furthermore, the interaction between nonreciprocal surface modes and the nonreciprocal photon occupation number in graphene allows for flexible manipulation of the near-field heat flux size and direction.
Article
Thermodynamics
Ming-Qian Yuan, Yong Zhang, Shui-Hua Yang, Cheng-Long Zhou, Hong-Liang Yi
Summary: In this work, the authors theoretically demonstrate a pathway for highly efficient near-field thermal rectification using nonreciprocal hyperbolic surface plasmon polaritons (NHSPPs) supported by a drift-biased graphene grating. They achieve theoretical rectification ratios over 88.67, which is a significant improvement compared to a drift-biased graphene sheet. The authors also discuss the influence of the grating's filling ratio and the height of the particles on near-field radiative heat transfer. They find that the rectification ratio and heat flux can be adjusted by controlling the height of the particles. The authors state that this work provides an idea for the thermal management of micro- and nanoscale devices.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Multidisciplinary
Julian Barnett, Lukas Wehmeier, Andreas Hessler, Martin Lewin, Julian Pries, Matthias Wuttig, J. Michael Klopf, Susanne C. Kehr, Lukas M. Eng, Thomas Taubner
Summary: Chalcogenide phase change materials can reversibly switch between non-volatile states with vastly different optical properties, enabling novel active nanophotonic devices. In this study, infrared scattering-type scanning near-field optical microscopy (SNOM) and Kelvin probe force microscopy (KPFM) were used to investigate four states of laser-switched Ge3Sb2Te6 with nanometer lateral resolution. The research found that SNOM is sensitive to differences between crystalline and amorphous states, while KPFM has higher sensitivity to changes introduced by melt-quenching.
Article
Optics
Shihao Zhang, Kun Zhou, Qiang Cheng, Lu Lu, Bowen Li, Jinlin Song, Zixue Luo
Review
Physics, Multidisciplinary
Jinlin Song, Qiang Cheng, Bo Zhang, Lu Lu, Xinping Zhou, Zixue Luo, Run Hu
Summary: Near-field radiative heat transfer, governed by evanescent waves, provides a platform for understanding the transport behavior of nonradiative photons and potential applications in energy harvesting and thermal management at the nanoscale. In nature, heat transfer often involves multiple bodies rather than just two, with mutual interactions between objects playing a crucial role in practical applications. Significant advancements in many-body NFRHT have been made in the past decade, revealing unique heat transport phenomena and applications.
REPORTS ON PROGRESS IN PHYSICS
(2021)
Article
Thermodynamics
Mengting Si, Qiang Cheng, Lin Yuan, Zixue Luo
Summary: This study proposed a high-speed imaging technique to visualize the combustion process of a single coal particle, revealing that the particle mainly underwent the release and combustion of volatiles during the combustion process, resulting in the production of soot. The soot exhibited varying levels of production at different stages of combustion, with the highest production occurring in the middle stage.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Applied
Kun Zhou, Lu Lu, Bowen Li, Qiang Cheng
Summary: This study proposes a method to achieve active tunability of phonon dispersion and spontaneous emission by combining multilayer graphene and hexagonal boron nitride on a specific functional substrate. The results show that the phase change of Ge2Sb2Te5 substrate has a significant impact on the hyperbolic phonon polaritons in hBN layer, leading to actively tunable spontaneous emission. Additionally, introducing graphene into the hBN/GST system enables the tuning of hyperbolic plasmon-phonon polaritons within and outside the reststrahlen bands of hBN, providing a potential route to enhance phonon dispersion and spontaneous emission in hyperbolic materials.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
Lu Lu, Kun Zhou, Bo Zhang, Bowen Li, Zixue Luo, Jinlin Song, Qiang Cheng
Summary: We theoretically investigate the magnetic-field control of near-field radiative heat transfer between two liquid crystal-based magneto-optical metamaterials, finding that a relatively weak magnetic field can control the heat flux due to the Freedericksz transition of liquid crystal. With the increase of the magnetic field, the magneto-optical response of InSb leads to a more pronounced thermal modulation, with intrinsic and magnetization-induced hyperbolic modes and dipole resonances playing dominant roles in near-field radiative heat transfer. Different aggregation forms of particles and volume filling fractions are discussed for their influences on heat transfer, providing an alternative practical and feasible solution for modulation of near-field radiative heat transfer.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Optics
Jingbo Qi, Jinlin Song, Bo Zhang, Zixue Luo, Qiang Cheng
Summary: This study proposes a magnetically tunable dual-band terahertz absorber that can dynamically adjust the absorption peaks by changing the intensity and rotation angle of a magnetic field. The absorption intensity of the absorber can reach 99% within a moderate magnetic field range.
Article
Chemistry, Multidisciplinary
Lu Lu, Bo Zhang, Han Ou, Bowen Li, Kun Zhou, Jinlin Song, Zixue Luo, Qiang Cheng
Summary: This study investigates the near-field radiative heat transfer (NFRHT) between graphene/hexagonal boron nitride (hBN) systems and demonstrates the NFRHT enhancement effects. The NFRHT enhancements are three times and six times higher than the blackbody limit for graphene/hBN heterostructures and graphene/hBN/graphene multilayers, respectively. The analysis suggests that these enhancements are consequences of the coupled surface plasmon polaritons (SPPs) of graphene and hyperbolic phonon polaritons (HPPs) of hBN.
Article
Thermodynamics
Bo Zhang, Lu Lu, Jinlin Song, Zixue Luo, Qiang Cheng
Summary: This study theoretically investigates the active control of near-field radiative heat transfer between two multilayered metamaterials consisting of two types of magneto-optical materials, graphene and InSb. The study found that active control of the heat transfer can be achieved by applying an external magnetic field and adjusting the chemical potential of graphene. The results show that the heat flux can be significantly enhanced by changing the magnetic field and the chemical potential of graphene, demonstrating the potential for active control of near-field radiative heat transfer.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Optics
Lu Lu, Bo Zhang, Bowen Li, Jinlin Song, Zixue Luo, Qiang Cheng
Summary: Magneto-optical materials have the potential to actively control near-field radiative heat transfer under weak magnetic fields. This study investigates the NFRHT between dual MO graphene/InSb core-shell nanoparticles-based metamaterials and provides insights into the physical mechanisms and applications of magnetic field-controlled devices.
Article
Optics
Kun Zhang, Bo Zhang, Jinlin Song, Zixue Luo, Qiang Cheng
Summary: In this study, we investigate the near-field radiative heat transfer (NFRHT) between a graphene/SiC core-shell (GSCS) nanoparticle and a hexagonal boron nitride (hBN) plate numerically. By applying a compressive strain to the hBN plate, the hyperbolic modes can be tuned. This allows for the active control of NFRHT by coupling and decoupling the hyperbolic phonon polaritons (HPPs) of hBN and the high-frequency localized surface resonance (LSR) of GSCS nanoparticle. We also predict a thermal rectification ratio of up to 13.6 by combining the effect of the chemical potential of graphene shell on NFRHT. This work enriches the phonon-polariton coupling mechanism and facilitates dynamic thermal management at the nanoscale.
