Metasurface based broadband solar absorber

Katrodiya, Devang; Jani, Charmy; Sorathiya, Vishal; Patel, Shobhit K.

doi:10.1016/j.optmat.2018.12.057

Cited by 77 publications

(24 citation statements)

References 25 publications

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“…Therefore, a highly efficient light trapping technique is needed that can trap the maximum number of photons inside a thin absorbing layer. These light trapping techniques include: anti-reflection coating [7], photonic crystals [8], and metallic nanoparticles [9][10][11] that reduce the reflection losses at the top surface and decrease the transmission of photons at the rear surface.…”

Section: Introductionmentioning

confidence: 99%

Broadband Solar Energy Absorption in Plasmonic Thin-Film Amorphous Silicon Solar Cell

et al. 2019

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Improving the light absorption in thin-film solar cell is essential for enhancing efficiency and reducing cost. Here, we propose an ultra-broadband amorphous silicon solar cell based on a periodic array of titanium ring-shaped metasurfaces, which achieves more than 90% absorptance in the visible range of the solar spectrum. The surface plasmon resonance supported by the nanoparticles together with the resonance induced by the metal–insulator–metal Fabry–Perot cavity leads to this broadband absorption. The impact of various materials of functional layers and the geometric structure of the nanoparticle on absorption performance is discussed in detail, and super broadband resonance is achieved after optimization. Moreover, the optimized solar cell is tested for different solar incidence angles and it is found that the structure exhibits high absorption efficiency even at large angles. Thus, the proposed solar cell design may be beneficial for most of the photovoltaic applications.

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Section: Introductionmentioning

confidence: 99%

Broadband Solar Energy Absorption in Plasmonic Thin-Film Amorphous Silicon Solar Cell

et al. 2019

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“…In recent years, metamaterial based EM absorbers have been widely researched [ 1 , 2 , 3 ], which has demonstrated their potential usage in solar photovoltaic and thermophotovoltaic devices [ 4 ], spatial light modulation [ 5 ] and sensing applications [ 6 ]. Based on the range of light spectrum absorbed by the EM absorber, it can be categorized into two types: a narrowband EM absorber [ 7 ] and a broadband EM absorber [ 8 ]. Typically, the dimensions of the metasurfaces are far beyond the wavelength, which substitutes the need for bulk optics and they are therefore capable of nanoscale light manipulation [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Gas Sensor Based on Polyhexamethylene Biguanide Polymer Deposited on Silicon Nano-Cylinders Metasurface

Kazanskiy

Butt

Хонина

2021

Sensors

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In this paper, we have numerically investigated a metasurface based perfect absorber design, established on the impedance matching phenomena. The paper comprises of two parts. In the first part, the device performance of the perfect absorber—which is composed of silicon nano-cylindrical meta-atoms, periodically arranged on a thin gold layer—is studied. The device design is unique and works for both x-oriented and y-oriented polarized light, in addition to being independent of the angle of incidence. In the second part of the paper, a CO2 gas sensing application is explored by depositing a thin layer of functional host material—a polyhexamethylene biguanide polymer—on the metasurface. The refractive index of the host material decreases due to the absorption of the CO2 gas. As a result, the resonance wavelength of the perfect absorber performs a prominent blueshift. With the help of the proposed sensor design, based on metasurface, the CO2 gas concentration range of 0–524 ppm was detected. A maximum sensitivity of 17.3 pm/ppm was acquired for a gas concentration of 434 ppm. The study presented in this work explores the opportunity of utilizing the metasurface perfect absorber for gas sensing applications by employing functional host materials.

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“…Near‐perfect absorption plays a crucial role in achieving potential applications including sensing, imaging, solar cells, and radar absorbers. [ 9–13 ] Typically, designed metallic resonant units, known as metallic “atoms,” are used to generate resonances and achieve near‐perfect absorption in the terahertz (THz) band. [ 14 ] For instance, a coherent perfect absorber based on metallic structure and polyimide was reported with controllable dual‐band property.…”

Section: Introductionmentioning

confidence: 99%

Mie‐Resonance‐Based Metamaterials with Perfect Absorption in the Terahertz Frequency Range

Zhang

Pan

Qiu

2021

Physica Rapid Research Ltrs

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Metamaterials have opened up an approach for high‐performance terahertz wave absorption. Herein, Mie‐resonance‐based metamaterials are fabricated from Al2O3 microspheres with different sizes. A facile method is designed to prepare the arrays of spheres efficiently and precisely. The Al2O3‐microsphere‐array metamaterial constructed with 77 μm spheres achieves perfect absorption. The maximum absorption arrives at 99.98% and the bandwidth for absorption higher than 99% is 0.11 THz (from 1.57 to 1.68 THz). Mie resonance is verified to be the reason for the strong absorption with its size‐dependent property demonstrated experimentally and theoretically. An efficient and economical route is offered to construct metamaterial perfect absorbers in the terahertz band.

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Metasurface based broadband solar absorber

Cited by 77 publications

References 25 publications

Broadband Solar Energy Absorption in Plasmonic Thin-Film Amorphous Silicon Solar Cell

Broadband Solar Energy Absorption in Plasmonic Thin-Film Amorphous Silicon Solar Cell

Carbon Dioxide Gas Sensor Based on Polyhexamethylene Biguanide Polymer Deposited on Silicon Nano-Cylinders Metasurface

Mie‐Resonance‐Based Metamaterials with Perfect Absorption in the Terahertz Frequency Range

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