A Terahertz Polarizer Based on Multilayer Metal Grating Filled in Polyimide Film

Mao, Hongyan; Xia, Liangping; Rao, Xianhua; Cui, Hong‐Liang; Wang, Sijiang; Deng, Yunsheng; Wei, Dongshan; Shen, Jun; Xu, Hongmei; Du, Chunlei

doi:10.1109/jphot.2015.2511093

Cited by 21 publications

(3 citation statements)

References 15 publications

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“…This kind of structure needs particular care to be fabricated. Nevertheless, we think that it is feasible, according to the literature 26,27 . For instance, more complex arrangements are already fabricated: coral-like structures 28 , solar cells with nanostructured transport layers 29 , either the ETL 30 or the HTL 31 , creating a kind of nanorods for the transport layers that could be embedded in the perovskite material 32 , or by blading a coating 33 .…”

Section: Setup and Methodsmentioning

confidence: 99%

A monolithic nanostructured-perovskite/silicon tandem solar cell: feasibility of light management through geometry and materials selection

Elshorbagy

López-Fraguas

Chaudhry

et al. 2020

Sci Rep

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The use of several layers of different materials, taking advantage of their complementary bandgap energies, improves the absorption in multi-junction solar cells. Unfortunately, the inherent efficiency increment of this strategy has a limitation: each interface introduces optical losses. In this paper, we study the effects of materials and geometry in the optical performance of a nanostructured hybrid perovskite -silicon tandem solar cell. our proposed design increases the performance of both subcells by managing light towards the active layer, as well as by minimizing reflections losses in the interfaces. We sweep both refractive index and thickness of the transport layers and the dielectric spacer composing the metasurface, obtaining a range of these parameters for the proper operation of the device. Using these values, we obtain a reduction in the optical losses, in particular they are more than a 33% lower than those of a planar cell, mainly due to a reduction of the reflectivity in the device. This approach leads to an enhancement in the optical response, widens the possibilities for the manufacturers to use different materials, and allows wide geometrical tolerances.

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Section: Setup and Methodsmentioning

confidence: 99%

A monolithic nanostructured-perovskite/silicon tandem solar cell: feasibility of light management through geometry and materials selection

Elshorbagy

López-Fraguas

Chaudhry

et al. 2020

Sci Rep

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“…The THz anisotropy metamaterial is fabricated with the method of hard template support [23]. A polyethylene glycol terephthalate (PET) film with the thickness of 35 μm is chosen as the low-loss substrate.…”

Section: Structuresmentioning

confidence: 99%

Broadband Anisotropy in Terahertz Metamaterial With Single-Layer Gap Ring Array

et al. 2019

Self Cite

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To convert the polarization of terahertz waves pumped by a femtosecond laser in a terahertz time domain system, a broadband anisotropic metamaterial is proposed. The metamaterial is constructed with a single-layer gapped metallic ring array, which supports different resonant modes in orthogonal directions. With the aid of simulations and measurements, the anisotropy of the terahertz transmission is demonstrated and discussed. The experimental results of THz transmission in the metamaterial indicate that the anisotropic band is as wide as 0.56 THz, which accords well with our theoretical prediction.

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“…Due to the different structure, metal patch and aperture frequency selection surfaces can achieve total reflection or transmission near the frequency of the resonant unit, i.e., band-stop or band-pass characteristics, respectively. Terahertz FSS structures are widely used as filters [9,10,11,12], modulators [13,14,15], polarizers [16,17,18] and sensors [19,20,21]. In recent years, more and more developments have been made in phase change materials which can change the properties of materials through light, heat and electricity.…”

Section: Introductionmentioning

confidence: 99%

A broadband reconfigurable frequency-selective surface in terahertz band based on different metal-insulator transition temperature of VO<sub>2</sub>

Cheng,

Lin,

Chen

et al. 2023

IEICE Electron. Express

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In this paper, a broadband reconfigurable frequency-selective surface (FSS) in terahertz band based on different metal-insulator transition (MIT) temperature of vanadium dioxide (VO2) is proposed. By using different MIT temperature of VO2, the broadband reconfigurable design of the FSS is realized. The results show that the center frequency of the FSS is 2.15 THz and when the temperature is lower than 60 ℃ , the relative bandwidth is 74.19%. When the temperature is between 60℃ and 72℃, the relative bandwidth is 55.59%. Above 72℃, the relative bandwidth is 33.78%. The FSS has broad application prospects in other emerging terahertz fields such as terahertz regulation and communication.

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A Terahertz Polarizer Based on Multilayer Metal Grating Filled in Polyimide Film

Cited by 21 publications

References 15 publications

A monolithic nanostructured-perovskite/silicon tandem solar cell: feasibility of light management through geometry and materials selection

A monolithic nanostructured-perovskite/silicon tandem solar cell: feasibility of light management through geometry and materials selection

Broadband Anisotropy in Terahertz Metamaterial With Single-Layer Gap Ring Array

A broadband reconfigurable frequency-selective surface in terahertz band based on different metal-insulator transition temperature of VO<sub>2</sub>

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