Near-field thermal radiation solar cell
Thermal radiation transfer between two objects separated by a subwavelength gap (near-field thermal radiation transfer) can be orders of magnitude larger than that in free space, which is attracting increasing attention with respect to both fundamental nanoscience and its potential for high-power-density and high-efficiency …
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One-Chip Near-Field Thermophotovoltaic Device Integrating a …
Thermal radiation transfer between two objects separated by a subwavelength gap (near-field thermal radiation transfer) can be orders of magnitude larger than that in free space, which is attracting increasing attention with respect to both fundamental nanoscience and its potential for high-power-density and high-efficiency …
High-injection effects in near-field thermophotovoltaic devices …
Similarly to the case of solar cells, the radiative behavior of the NF-TPV cell is the primary driver for the electrical performances of the devices. ... Review of near-field thermal radiation and ...
Review A short review of radiation-induced degradation of III–V ...
The radiation-induced degradation of PV-cells is due to the defects created by ions or nuclei particles that strike the solar cells'' wafers. The striking particles modify the crystal structure of the semiconductors by ionization or atomic displacements, see Fig. 2-(a). The latter is the most damaging degradation mechanism given that it ...
''Squeezing'' near-field thermal emission for ultra-efficient high …
ThermoPhotoVoltaics (TPV) 1,2,3,4 is a heat-to-electricity conversion mechanism, wherein Thermal radiation is absorbed by a semiconductor PhotoVoltaic (PV) cell. It is very favorable, as it ...
Solar Energy Materials and Solar Cells
Three-dimensional (3D) finite-difference time-domain (FDTD) method is used to obtain the structural dimensions and optical response. Periodic boundary conditions are established in both x-and y-directions, while perfectly matched layer (PML) conditions are set along the z-direction to avoid unphysical scattering boundaries and ensure …
Near-field radiative thermoelectric energy converters: a review
This Review covers the fundamentals of near-field thermal radiation, photon entropy, and nonequilibrium effects in semiconductor diodes that underpin device operation. The development and state-of-the art of these near-field converters are discussed in detail. ... Solar Energy Materials and Solar Cells, Vol. 33, Issue 3; DOI: …
Integrated near-field thermo-photovoltaics for heat recycling
We demonstrate a scalable near-field thermo-photovoltaic that allows us to control the heat flux through precise tuning of the distance between a hot suspended …
Broadening Near-Field Emission for Performance Enhancement in ...
Analysis of near field radiation among lithography-free metal-dielectric-metal perfect absorbers with a combined numerical method. ... Heat diffusion in nanoparticle systems via near-field thermal photons. International Journal of Heat and Mass Transfer 2023, 200, 123544. ... Solar Energy Materials and Solar Cells 2022, 238, 111556. https ...
Towards a near-field concentrated solar ...
Modeling of a near-field concentrated solar thermophotovoltaic (STPV) microsystem is carried out to investigate the use of STPV-based solid-state energy …
Integrated near-field thermo-photovoltaics for heat recycling
a Calculated spectral heat flux of thermal radiation absorbed by room-temperature germanium when the hot-emitter (aSi-Cr-W-Cr) is placed at near-field …
Near-Field Thermophotovoltaic Conversion with High …
These results highlight that near-field thermophotovoltaic converters are now competing with other thermal-to-electrical conversion devices and also pave the way for efficient photoelectric detection of …
Parametric characteristics and optimization of a near-field ...
Since near-field thermal radiation can greatly enhance the heat transfer intensity, there is a large amount of thermal energy dissipated in the cell. Vongsoasup et al. (2017) shows that when the radiation heat flux were 4.28 × 10 5 W/m 2, the heat flux dissipated reached 2.8 × 10 5 W/m 2 .
Xiaohu WU | Professor (Full) | Professor | Thermal Science
My main research interests include magneto-optical materials, metasurfaces, chiral response, and near-field radiative heat transfer between hyperbolic materials. If you are interested, please ...
Near-Field Thermophotovoltaic Energy Conversion: Progress and ...
One approach to significantly enhance POD is by maintaining a nano-scale gap between the emitter and PV cell to harness near-field thermal radiation [12][13][14][15][16] ... On a solar cell, the ...
Near-Field Thermophotovoltaic Conversion with High Electrical …
A huge amount of thermal energy is available close to material surfaces in radiative and nonradiative states, which can be useful for matter characterization or energy harvesting. Even though a full class of novel nanoengineered devices has been predicted over the last two decades for exploiting near-field thermal photons, efficient near-field …
Near-field radiative modulator based on α-MoO3 films
Colossal enhancement of near-field thermal radiation across hundreds of nanometers between millimeter-scale plates through surface plasmon and phonon polaritons coupling ... Near-perfect photon utilization in an air-bridge thermophotovoltaic cell. Nature, 586 (2020), pp. 237-241. Crossref View ... A multi-junction-based near-field solar ...
Hot Carrier-Based Near-Field Thermophotovoltaic …
Near-field thermophotovoltaics (NFTPV) is a promising approach for direct conversion of heat to electrical power. This technology relies on the …
Enhancement in the multi-junction thermophotovoltaic system based on ...
The multijunction near-field TPV system improves system performance from three aspects: (1) A multi-junction TPV is the only way to recover the out-of-band photons (Lu et al., 2018a, Lu et al., 2018b) and the InAs/GaInAsSb tandem cell is employed to broaden the available spectrum.(2) Evanescent waves are recovered through near …
Nanogap near-field thermophotovoltaics | Nature Nanotechnology
Theoretical proposals 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 suggest that near-field (NF) effects 13, 14, 15, 16, 17, 18 that arise in nanoscale gaps may be leveraged to …
MODELING OF NEAR-FIELD CONCENTRATED SOLAR …
tunneled to the PV cell by near-field radiation. The second is the near-field thermal radiation power transfer from emitter to PV cell, which incorporates fluctuation dissipation theorem to find out the effect of near-field radiation. The third is the modeling of PV cell to find out the photocurrent generated corresponding to
Modeling of coupled spectral radiation, thermal and carrier transport ...
Near-field radiation has been widely shown to greatly boost the electrical power of thermophotovoltaic (TPV) cells. However, there is a lack of theoretical analysis exploring the important ...
Phys. Rev. Applied 19, 037002 (2023)
The authors review the physics of near-field thermal radiation, and assess theoretical and experimental advances in predicting and validating near-field …
Publications – Arizona State University μετα Thermal Radiation …
Google Scholar. ResearchGate. ORCID. Submitted. To be updated; 2022. Sabbaghi,* P., Qing, N., and Wang,* L.P., 2022, "Near-Field Thermophotovoltaic Energy ...
Thermal radiation at the nanoscale and applications
There has been a paradigm shift from the well-known laws of thermal radiation derived over a century ago, valid only when the length scales involved are much larger than the thermal wavelength (around 10 μm at room temperature), to a general framework known as fluctuational electrodynamics that allows calculations of radiative …
Enhanced thermal radiation conversion in a GaSb/GaInAsSb …
With experimentally-available, GaSb lattice-matched Ga x In 1-x As y Sb 1-y and InAs 0.91 Sb 0.09 alloys, thermal radiation conversion achieved by Ga x In 1-x As y Sb 1-y /InAs 0.91 Sb 0.09 dual-junction cell has been systematically studied. Following two-step optimization, it is shown that the dependence of optimum structure and its …
Hot Carrier-Based Near-Field Thermophotovoltaic …
Near-field thermophotovoltaics (NFTPV) is a promising approach for direct conversion of heat to electrical power. This technology relies on the drastic enhancement of radiative heat transfer (compa...
Integrated Near-Field Thermophotovoltaic Device …
Here, we experimentally demonstrate a one-chip near-field TPV device overcoming the blackbody limit, which integrates a 20-μm-thick Si emitter and an InGaAs PV cell with a subwavelength gap (<140 …
Effectiveness of multi-junction cells in near-field …
Thermophotovoltaic (TPV) energy converters hold substantial potential in converting thermal radiation from high-temperature emitters into electrical energy through photovoltaic (PV) cells, offering applications ranging from …
One-Chip Near-Field Thermophotovoltaic Device …
Thermal radiation transfer between two objects separated by a subwavelength gap (near-field thermal radiation transfer) can be orders of magnitude larger than that in free space, which is attracting …
(PDF) Effectiveness of multi-junction cells in near-field ...
A common method to significantly enhance POD is maintaining a sub-micron vacuum gap between the emitter and PV cell to leverage the near-field thermal radiation.
Thermal radiation
Thermal radiation is the emission of electromagnetic waves from all matter that has a temperature greater than absolute zero. [5] [2] Thermal radiation reflects the conversion of thermal energy into electromagnetic energy.Thermal energy is the kinetic energy of random movements of atoms and molecules in matter. It is present in all matter of nonzero …
[PDF] Modeling of Near-Field Concentrated Solar …
Modeling of a near-field concentrated solar thermophotovoltaic (STPV) microsystem is carried out to investigate the use of STPV-based solid-state energy conversion as a high power density MEMS power generator. Near-field radiation can be realized between two closely separated surfaces (i.e. order of radiation wavelength), …
Effects of near-field photon tunneling on the performance of …
If near-field thermal radiation effects are not considered, the maximum efficiency will increase monotonously with reducing d. ... General temperature dependence of solar cell performance and implications for device modelling. Prog Photovoltaics Res Appl, 11 (2003), pp. 333-340. View in Scopus Google Scholar
Phys. Rev. Applied 19, 037002 (2023)
This review examines the latest progress in theoretical and experimental explorations of near-field thermophotovoltaic (NF TPV) systems. We begin by …
Near-Field Thermophotovoltaic Conversion with High …
A huge amount of thermal energy is available close to material surfaces in radiative and nonradiative states, which can be useful for matter characterization or energy harvesting. Even though a full class …
Effectiveness of multi-junction cells in near-field …
Thermophotovoltaic (TPV) energy converters hold substantial potential in converting thermal radiation from high-temperature emitters into electrical energy through photovoltaic (PV) cells, offering applications ranging from solar energy harvesting to waste heat recovery. Near-field TPV (NF-TPV) devices, focused on enhancing power output density …
High-injection effects in near-field …
Similarly to the case of solar cells, the radiative behavior of the NF-TPV cell is the primary driver for the electrical performances of the devices. ... Review of near-field thermal radiation and ...
Integrated Near-Field Thermophotovoltaic Device …
Near-field thermal radiation transfer overcoming the blackbody limit has attracted significant attention in recent years owing to its potential for drastically increasing the output power and conversion …