Two dimensional metallic photonic crystals for light trapping and anti-reflective coatings in thermophotovoltaic applications

Shemelya, Corey; DeMeo, Dante F.; Vandervelde, Thomas E.

doi:10.1063/1.4862180

Cited by 28 publications

(8 citation statements)

References 29 publications

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“…For example, at 1800 K radiation temperature, the efficiency of the nonoptimized Ge (InGaAs) cell increased from 5.68 (14.34) to 8.11% (20.23%), solely due to the application of ARC. A similar observation has been reported by Shemelya et al [62] and Sharma et al [63], where an efficiency improvement between 30 and 50% was achieved with the utilization of ARC. Additionally, the optical losses due to low absorption in the structure were reduced by optimizing the thickness of the absorber.…”

Section: The Ge and Ingaas Cells Performance Under Various Radiatisupporting

confidence: 88%

Performance of Ge and In_0.53Ga_0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

et al. 2021

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Section: The Ge and Ingaas Cells Performance Under Various Radiatisupporting

confidence: 88%

Performance of Ge and In_0.53Ga_0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

et al. 2021

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“…The selective emitters were generated with several techniques; grating structures using micro/nano-scale fabrication technique [36], magnetic polaritons [37], and metamaterials such as (i) epsilon-near zero [38], (ii) passivated platinum and alumina [17], and (iii) alternate tungsten and alumina [39]. There are several types of selective emitters that have been discussed in the literature, which are silicon carbide (SiC) [7], tungsten (W) [40], rareearth oxide [41], and photonics crystal (PhC) [42] [43]. Among the selective emitters, rare-earth oxide is an isolated ion, serves as the most popular candidate for selective emitter.…”

Section: B Tpv Emittermentioning

confidence: 99%

Recent Development of Thermophotovoltaic System for Waste Heat Harvesting Application and Potential Implementation in Thermal Power Plant

et al. 2020

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Rapid depletion of fossil fuels due to the growing demand for energy has resulted in a worldwide concern to improve energy conversion efficiency. Yet, the energy conversion of conventional fossil fuel power generation plants remains relatively low (less than 40%) and a huge amount of energy is wasted in the form of heat, leading to global warming issues. Recycling and recuperating even a small portion of energy losses could provide a huge impact on energy saving and minimize the reliance on fossil fuels. Thermophotovoltaic system appears to be a potential candidate to capture, recover, and convert waste heat energy into useful electricity. This paper presents an overview of the recent development of thermophotovoltaic technology for waste heat recovery applications. Each component in the thermophotovoltaic system including thermophotovoltaic generator/heat source, thermal emitter, spectral filter and thermophotovoltaic cells is vital and can be engineered to achieve a better heat-to-electricity conversion efficiency. Recently, researchers have shown great interest in near-field thermophotovoltaic systems where higher power intensity can be captured by the thermophotovoltaic cell, thus improving the overall system performance. Furthermore, the potential locations for energy scavenging in thermal power plants is investigated based on the on-site temperature measurement. In Malaysia, it is estimated that around 3,831 GWh of waste heat energy could be saved in operational thermal power plants. This review will contribute to the knowledge for future development thermophotovoltaic systems in waste heat recovery applications while summarizing the potential locations for energy scavenging in thermal power plants.

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“…First, unlike the tapering geometry for the adiabatic impedance matching that is commonly done by etching into the active material, which may increase surface recombination, the resonant antireflection can be achieved by simply coating the surface with nanoparticles without an etching process [29,33,46]. Second, the optical resonances might in addition provide light trapping functionalities [33,[46][47][48][49][50][51][52], might enhance the broadband antireflection performance indirectly, for example, by influencing the material dispersion [53], and might allow tenability of the spectral range of antireflection [54].…”

Section: Introductionmentioning

confidence: 98%

Sufficient condition for perfect antireflection by optical resonance at dielectric interface

Wang

Sandhu

et al. 2015

SPIE Proceedings

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Reflection occurs at an air-material interface. The development of antireflection schemes, which aims to cancel such reflection, is important for a wide variety of applications including solar cells and photodetectors. Recently, it has been demonstrated that a periodic array of resonant subwavelength objects placed at an air-material interface can significantly reduce reflection that otherwise would have occurred at such an interface. Here, we introduce the theoretical condition for complete reflection cancellation in this resonant antireflection scheme. Using both general theoretical arguments and analytical temporal coupled-mode theory formalisms, we show that in order to achieve perfect resonant antireflection, the periodicity of the array needs to be smaller than the free-space wavelength of the incident light for normal incidence, and also the resonances in the subwavelength objects need to radiate into air and the dielectric material in a balanced fashion. Our theory is validated using first-principles full-field electromagnetic simulations of structures operating in the infrared wavelength ranges. For solar cell or photodetector applications, resonant antireflection has the potential of providing a low-cost technique for antireflection that does not require nanofabrication into the absorber materials, which may introduce detrimental effects such as additional surface recombination. Our work here provides theoretical guidance for the practical design of such resonant antireflection schemes.

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Two dimensional metallic photonic crystals for light trapping and anti-reflective coatings in thermophotovoltaic applications

Cited by 28 publications

References 29 publications

Performance of Ge and In_0.53Ga_0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

Performance of Ge and In_0.53Ga_0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

Recent Development of Thermophotovoltaic System for Waste Heat Harvesting Application and Potential Implementation in Thermal Power Plant

Sufficient condition for perfect antireflection by optical resonance at dielectric interface

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Two dimensional metallic photonic crystals for light trapping and anti-reflective coatings in thermophotovoltaic applications

Cited by 28 publications

References 29 publications

Performance of Ge and In0.53Ga0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

Performance of Ge and In0.53Ga0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

Recent Development of Thermophotovoltaic System for Waste Heat Harvesting Application and Potential Implementation in Thermal Power Plant

Sufficient condition for perfect antireflection by optical resonance at dielectric interface

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Product

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Performance of Ge and In_0.53Ga_0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances

Performance of Ge and In_0.53Ga_0.47 as Thermophotovoltaic Cells under Different Spectral Irradiances