A near-field radiative heat transfer device
arXiv:1811.06485 · doi:10.1038/s41565-019-0483-1
Abstract
Recently, many works have experimentally demonstrated near-field radiative heat transfer (NFRHT) exceeding the far-field blackbody limit between planar surfaces. Due to the difficulties associated with maintaining the nanosize gaps required for measuring a near-field enhancement, these demonstrations have been limited to experiments that cannot be implemented into actual applications. This poses a significant bottleneck to the advancement of NFRHT research. Here, we describe devices bridging laboratory-scale measurements and potential NFRHT engineering applications in energy conversion and thermal management. We report a maximum NFRHT enhancement of ~ 28.5 over the blackbody limit with devices made of millimeter-sized doped silicon (Si) surfaces separated by vacuum gap spacings down to ~ 110 nm. The devices capitalize on micropillars, separating the high-temperature emitter and low-temperature receiver, manufactured within micrometer-deep pits. These micropillars, which are ~ 4.5 to 45 times longer than the nanosize vacuum spacing where radiation transfer takes place, minimize parasitic heat conduction without sacrificing device structural integrity. The robustness of our devices enables gap spacing visualization via scanning electron microscopy (SEM) prior to performing NFRHT measurements. Direct gap spacing characterization is critical for transitioning NFRHT research from laboratory-scale experiments to applications.
arXiv comment45 pages; 3 figures; 9 supplementary figures
References in corpus (3)
Cited by in corpus (42)
- Near-field Radiative Heat Transfer in Many-Body Systems
- Harnessing near-field thermal photons with efficient photovoltaic conversion
- Integrated near-field thermo-photovoltaics for on-demand heat recycling
- Twist-induced control of near-field heat radiation between magnetic Weyl semimetals
- Magnetic field effects in the near-field radiative heat transfer between planar structures
- Radiative heat transfer and radiative thermal energy for 2D nanoparticle ensembles
- Twist-induced Near-field Thermal Switch Using Nonreciprocal Surface Magnon-Polaritons
- Many-body effective thermal conductivity in phase-change nanoparticle chains due to near-field radiative heat transfer
- Perspective on Near-Field Radiative Heat Transfer
- Nonequilibrium Thermodynamics of Quantum Friction
- Coupled Charge and Radiation Transport Processes in Thermophotovoltaic and Thermoradiative Cells
- Normal Metal-Superconductor Near-Field Thermal Diodes and Transistors
- Extreme Near-Field Heat Transfer Between Gold Surfaces
- Wading through the void: Exploring quantum friction and nonequilibrium fluctuations
- Thin-film radiative thermal diode with large rectification
- Near-field radiative heat transfer between twisted nanoparticle gratings
- Near-field radiative heat transfer between one-dimensional magneto-photonic crystals
- Super-Planckian Radiative Heat Transfer between Macroscale Plates with Vacuum Gaps Down to 190 nm Directly Created by SU-8 Posts and Characterized by Capacitance Method
- Revisiting Submicron-Gap Thermionic Power Generation Based on Comprehensive Charge and Thermal Transport Modeling
- Surface-plasmon-enhanced near-field radiative heat transfer between planar surfaces with a thin-film plasmonic coupler
- Near-field radiative heat transfer between irregularly shaped dielectric particles modeled with the discrete system Green's function method
- Thermophotovoltaic energy conversion in far-to-near-field transition regime
- High-Performance Photonic Transformers for DC Voltage Conversion
- Super-Planckian Radiative Heat Transfer between Metallic Surfaces Due to Near-Field and Thin-Film Effects
- First-principles calculations of phonon transport across a vacuum gap
- Radiative thermal diode via hyperbolic metamaterials
- Temperature dependence of near-field radiative heat transfer above room temperature
- Unconventional Thermophotonic Charge Density Wave
- Wideband tunable infrared topological plasmon polaritons in dimerized chains of doped-silicon nanoparticles
- Normal heat diffusion in many-body system via thermal photons
- Resonant enhancement of the near-field radiative heat transfer in nanoparticles
- Extending the thermal near field through compensation in hyperbolic waveguides
- Near-field radiative heat transfer between shifted graphene gratings
- Effect of graphene grating coating on near-field radiative heat transfer
- Magnetic field control of the near-field radiative heat transfer in three-body planar systems
- Many-body interaction on near-field radiative heat transfer between two nanoparticles caused by proximate particle ensembles
- Residual surface charge mediated near-field radiative energy transfer: A topological insulator analog
- Near-field radiative heat transfer between a nanoparticle and a graphene grating
- Thermal discrete dipole approximation for near-field radiative heat transfer in many-body systems with arbitrary nonreciprocal bodies
- Favorable and unfavorable many-body interactions for near-field radiative heat transfer in nanoparticle networks
- Enhancing Near-Field Radiative Heat Transfer between Dissimilar Dielectric Media by Coupling Surface Phonon Polaritons to Graphenes Plasmons
- Near-field radiative heat transfer in the dual nanoscale regime between polaritonic membranes