Efficient Light Management in Ultrathin Crystalline GaAs Solar Cell Based on Plasmonic Square Nanoring Arrays

Khan, Aimal Daud; Khan, Adnan Daud; Subhan, Fazal E.; Noman, Muhammad

doi:10.1007/s11468-019-00992-z

Cited by 10 publications

(6 citation statements)

References 36 publications

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“…The thickness of this layer is selected as tabs1 = 250 nm and a cluster of four metal nanoparticles of spherical shape, each having radius of Sn = 70 nm are inserted in a-Si layer to further improve the light absorption via plasmonic effect. The nanoparticles are made from aluminum (Al), which is a low cost and earth-abundant material, and it appears to be a rising star due to excellent plasmonic properties [18]. (iii) A second active layer made of c-Si having bandgap of 1.1 eV is added below the a-Si layer, to generate additional electronhole pairs by consuming the low frequency light energy, which is not absorbed in the top active layer.…”

Section: Simulation Modelmentioning

confidence: 99%

Improving the light absorption efficiency in thin-film plasmonic tandem solar cell

Ali

Amin

Khan

et al. 2021

J Opt

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Recently, thin-film solar cells have received much attention due to low production cost. However, such cells suffer from low efficiency due to which they cannot be used for practical applications. To cater this problem, we have numerically investigated thin-film tandem solar cells comprising of double active layers made of amorphous silicon (a-Si) and crystalline silicon (c-Si) of different energy bandgaps. The tandem cell is found to absorb large amount of solar photons compared to a single a-Si and c-Si solar cells. To further improve the absorption efficiency, we efficiently utilized the surface plasmon resonance (SPR) effect of plasmonic nanoparticles, which are deposited in the form of a square lattice in the top a-Si active layer. The absorption characteristics of the cell are enhanced and tuned by optimizing the material and size of the nanoparticles. Moreover, periodic disorders are incorporated, which allow mixing of plasmonic modes having different angular momenta, resulting in a super broadband light absorption from 300 to 1100 nm and yielding a short circuit current density of 33.917 mA/cm 2 in the active layers. The proposed plasmonic tandem cell can be advantageous for most of the photovoltaic applications.

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Section: Simulation Modelmentioning

confidence: 99%

Improving the light absorption efficiency in thin-film plasmonic tandem solar cell

Ali

Amin

Khan

et al. 2021

J Opt

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“…Thin-lm solar cells (TFSCs) are some of the most well-known photovoltaic systems, attracting great research attention due to their low cost and exible substrates. [1][2][3] However, when designing TFSCs, one of the main challenges is to effectively improve the absorption of incidence light over a wide range of wavelengths. A key technique for obtaining good light trapping and enhancing the efficiency of solar cells is to engineer the light behavior by using photonic crystals, 4 diffraction gratings, 5 anti-reection coatings, 6 surface texturing, 7 and metallic nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…A key technique for obtaining good light trapping and enhancing the efficiency of solar cells is to engineer the light behavior by using photonic crystals, 4 diffraction gratings, 5 anti-reection coatings, 6 surface texturing, 7 and metallic nanoparticles. 3,8 Plasmonic nanogratings among other structures show a substantial progress as they can be used either as an innovative back reector patterned on a metal mirror [9][10][11][12] and/or on transparent and conductive oxides (TCO), [13][14][15][16] to improve both the optical path length and optical absorption over a broad spectrum. The effective coupling between metallic nanograting modes and the incident light essentially presents an efficient light trapping developing from surface plasmon resonances and their resultant near-eld light concentration.…”

Section: Introductionmentioning

confidence: 99%

Efficient broadband light absorption in thin-film a-Si solar cell based on double sided hybrid bi-metallic nanogratings

et al. 2020

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“…A numerical optimization process, regarding both the material and the geometrical properties of the nanostructures, has been carried out, carefully analyzing the spectral pro les of the total re ectance and absorption rate, as well as the current density. The considered optimal device shows a remarkable rise of the solar cell performance, with a relative increase larger than 20% compared to other devices in the state of the art, like antire ection coatings (ARC) [26,27] and plasmonic nanoparticles [28][29][30]. Moreover, the considered geometry has been designed with intention of ease fabrication in contrast to other complex shapes like nanopyramids or nanocones.…”

Section: Introductionmentioning

confidence: 99%

Light Absorption Enhancement in thin Film GaAs Solar Cells Using Dielectric Nanoparticles

Chaudhry

Escandell

López-Fraguas

et al. 2022

Preprint

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Cost-effective and lightweight solar cells are demanded in strategic fields such as space applications or integrated-wearable devices, among others. A reduction of the thickness of the active layer, producing thin-film devices, has been a traditional solution for both requirements. However, this also reduces the efficiency of the device. For this reason, alternative strategies are being proposed. In this work, light trapping effects of an array of semiconductor nanoparticles located on the top surface of a thin-film GaAs solar cell are investigated to improve the optical absorption and current density in active layer, under the standard AM-1.5 solar spectrum. The numerical results are compared with other previous proposals such as an aluminum nanoparticle array, as well as conventional solar cells with and without a standard anti-reflective coating (ARC). The inclusion of semiconductor nanoparticles (NPs) shown an improved response of the solar cells at different angle of incidence in comparison to solar cell with an ARC. Furthermore, the efficiency was increased a 10% respect to the aluminum nanoparticles (NPs) architecture, and a 21% and a 30% respect to solar cells with and without ARC, respectively.

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Efficient Light Management in Ultrathin Crystalline GaAs Solar Cell Based on Plasmonic Square Nanoring Arrays

Cited by 10 publications

References 36 publications

Improving the light absorption efficiency in thin-film plasmonic tandem solar cell

Improving the light absorption efficiency in thin-film plasmonic tandem solar cell

Efficient broadband light absorption in thin-film a-Si solar cell based on double sided hybrid bi-metallic nanogratings

Light Absorption Enhancement in thin Film GaAs Solar Cells Using Dielectric Nanoparticles

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