Theoretical study of multilayer ring metamaterial emitter for a low bandgap TPV cell

Jiang, Cancheng; Shan, Shiquan; Zhou, Zhijun; Liang, Lijiang; Huang, Hua‐Dong

doi:10.1016/j.solener.2019.10.074

Cited by 17 publications

(11 citation statements)

References 21 publications

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“…Jiang et al. 20 designed a multi-layer ring metamaterial structure which can reshape the thermal radiation to reach a spectral efficiency of 85.6% at 1600 K. These works prove the effectiveness of metamaterial structures in STPV systems, which provides important inspirations for the construction of space STPV system. However, current STPV studies focus on the utilization of AM1.5 near-ground solar energy, 21 which has different radiation distribution characteristics from AM0 space solar radiation (Blackbody spectrum).…”

Section: Introductionmentioning

confidence: 90%

Construction and performance analysis of a solar thermophotovoltaic system targeting on the efficient utilization of AM0 space solar radiation

Chen¹,

Shan²

2022

iScience

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Section: Introductionmentioning

confidence: 90%

Construction and performance analysis of a solar thermophotovoltaic system targeting on the efficient utilization of AM0 space solar radiation

Chen¹,

Shan²

2022

iScience

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“…The desired characteristics of the thermal emitter are prospectively determined by elaborate optical design. Recently, various thermal emitters have been investigated, including three-dimensional (3D) photonic crystals, , metamaterials, , and multilayer films. , Among them, 3D photonic crystals and metamaterials are attractive in improving spectral selectivity. However, the complex geometry and the complicated fabrication process give rise to high manufacturing costs of the emitters, and it is difficult to guarantee their thermal stability in long-term high-temperature service.…”

Section: Introductionmentioning

confidence: 99%

High-Selectivity Planar Thermal Emitter with a Stable Temperature over 1400 K for a Thermophotovoltaic System

Wang,

Wu,

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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A selective thermal emitter with superior thermal stability and perfect selective thermal emission in specific bands can facilitate the lifting of the thermophotovoltaic (TPV) energy conversion efficiency in TPV systems. Scalable planar selective thermal emitters with superior spectral selectivity and robust hightemperature stability are desired to meet the requirements of large-scale deployments of TPV systems. However, stably reradiating the available thermal photons at above 1273 K remains a significant challenge for selective thermal emitters. In this work, we demonstrated a high-selectivity planar thermal emitter based on the composite ceramic of ZrC and Al 2 O 3 . The prepared selective thermal emitter provides an emissivity of around 90% above the photon energy (0.6 eV) at 1423 K, a strong emission suppression effect below 0.6 eV, and superior thermal stability up to at least 1423 K. Therefore, the overall spectral efficiency can reach around 53%. Coupled with an InGaAs PV cell, the TPV system based on the selective thermal emitter demonstrates a predicted heat-to-electricity power conversion efficiency of 29.78% at 1423 K due to the matched spectral response of the emitter with the PV cell. Our work opens a new way forward for TPV systems based on planar selective thermal emitters.

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“…For a practical TPV emitter, the incident wave is not always the normal TM wave, requiring that the emitter should be spectrally selective for incident waves with different polarization modes and different incidence angles (Khodasevych et al, 2015;Kim et al, 2017;Sakakibara et al, 2019). Comparing with normal incidence, the spectral selectivity of the emitter decreases under oblique incidence, leading to a decrease in the overall efficiency of the TPV system (Ulaby et al, 2015;Jiang et al, 2019). Therefore, it is crucial to maintain the adaptability of the emitter's wide-angle and polarization method.…”

Section: Introductionmentioning

confidence: 99%

Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals

Cao

Cai²,

Zhang³

et al. 2023

Front. Energy Res.

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In this paper, a thermophotovoltaic (TPV) emitter that combines a one-dimensional photonic crystal with two-dimensional periodic nanoarray cavities was proposed. The Finite-Difference Time-Domain (FDTD) method was adopted to analyze the spectral emittance and its sensitivity to the emission angle for the proposed emitter. The results show that the main emission mechanisms of the emitter are Cavity Resonances (CRs), Fabry-Perot (FP) resonances, and Magnetic polaritons (MPs). In the convertible band of a TPV cell, CRs and FP resonances are coupled together to broaden the emitting bandwidth of the emitter. The cut-off wavelength of structural spectral emittance increases with depth and radius but decreases with a period. In addition, the spectral emittance is non-sensitive to the emission angle of less than 50°, highlighting the wide-angle stability of the composite structure. The proposed emitter has wide-angle adaptability and achieves a fine-tunning of bandgap wavelength while maintaining a good spectral selectivity. This work provides new insight into the design of the TPV emitter.

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Theoretical study of multilayer ring metamaterial emitter for a low bandgap TPV cell

Cited by 17 publications

References 21 publications

Construction and performance analysis of a solar thermophotovoltaic system targeting on the efficient utilization of AM0 space solar radiation

Construction and performance analysis of a solar thermophotovoltaic system targeting on the efficient utilization of AM0 space solar radiation

High-Selectivity Planar Thermal Emitter with a Stable Temperature over 1400 K for a Thermophotovoltaic System

Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals

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