Enhancement of solar cells parameters by periodic nanocylinders

Abstract. In this study, the optimization of the surface plasmon resonance (SPR) sensor based on graphene-silver substrate was investigated. We simulated the refl ection spectrum that depends on the metal thickness and the number of graphene layers. The addition of a certain number of graphene layers based on the knowledge that silver oxidation decreases the sensitivity of the sensor improved the sensitivity S RI , while the detection accuracy decreased. To optimize the sensor performance, the investigation focused on monolayer graphene. Furthermore, genetic algorithms were used to optimize the SPR biosensor refl ection by adjusting the coeffi cients of the system, which are the incidence angle and metal layer thickness.

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“…-A bio-sensing layer n s = 1.33. We will use a generalized N-layer model [1,33,34], shown in Fig. 1b.…”

Section: The Relationship Is Given Bymentioning

confidence: 99%

Reflectivity optimization of the SPR graphene sensor

2018

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“…2. Multi-layer model system diagram [14,15] The system diagram help to have SPR curve and after that, calculate the reflectivity of the incident p-polarized light using the SPR curve. [16].…”

Section: Methodsmentioning

confidence: 99%

Silver Prism Interface Plasmon Resonance for Biosensor in Ir-Visible Spectrum Region

Kadhum

Mohammed

Alikan

et al. 2023

MSF

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The performance of a surface Plasmon resonance (SPR) sensor with silver film was demonstrated. The Kretschmann setup's evanescent field, which can activate the sensor. The sensitivity and FWHM of the SPR sensor drop as the thickness of the silver layer in the metallic film increases. Using water as a sensing medium, it can create a simulation model at various thicknesses of the silver layers placed on the semicircular glass prism D-ZLAF50 with a thickness of dAg = 10–80 nm. The proposed sensor can function at wavelengths of up to 600,700nm in the visible area and the infrared region at wavelengths of 900 & 1000 nm. Optimum sensitivity (S = 100–140) may be observed in the visible and infrared spectrum with thicknesses ranging from dAg = (10–80) nm , ∆n = 0.1. At silver layer thicknesses, the values of SPR dip length and FWHM are excellent (40–60 nm).

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“…In the recent years, considerable effort has been devoted to optimizing the shape, density and placement of the plasmonic absorbers [7][8][9][10][11][12]. Most studies have focused on Ag-based nanostructures, although Al [13][14][15][16] and In [16] nanostructures were also explored.…”

Section: Introductionmentioning

confidence: 99%

Enhanced coupling of broadband light into amorphous silicon via periodic nanoplasmonic arrays

et al. 2018

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Achieving enhanced coupling of solar radiation over the full range of the silicon absorption spectrum up to the bandgap is essential for increased efficiency of solar cells, especially thin film versions. While many designs for enhancing trapping of radiation have been explored, detailed measurements of light scattering inside silicon cells is still lacking. Here, we demonstrate experimentally and computationally that plasmonic-assisted localized and traveling modes can efficiently couple red and infrared radiation into ultrathin amorphous silicon (a-Si) layers. Utilizing patterned periodic arrays of aluminum nanostructures on thin a-Si, we perform specular and diffuse reflectivity and transmission measurements over a broad spectrum. Based on these results, we are able to separate parasitic absorption in aluminum plasmonic arrays from enhanced light absorption in the 200 nm thick amorphous silicon layer, as compared to a blank silicon layer. We discover a very efficient near-infrared a-Si absorption mechanism that occurs at the transition from the radiative to evanescent diffractive coupling, analogous to earlier surface-enhanced infrared studies. These results represent a direct demonstration of enhanced radiation coupling into silicon due to large angle scattering and show a path forward to improved ultrathin solar cell efficiency.

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Enhancement of solar cells parameters by periodic nanocylinders

Cited by 7 publications

References 27 publications

Reflectivity optimization of the SPR graphene sensor

Reflectivity optimization of the SPR graphene sensor

Silver Prism Interface Plasmon Resonance for Biosensor in Ir-Visible Spectrum Region

Enhanced coupling of broadband light into amorphous silicon via periodic nanoplasmonic arrays

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