Investigation of quasi-periodic structures to increase the efficiency of thin-film silicon solar cells: A comparative study

Abbasiyan, Amin; Noori, Mina; Baghban, Hamed

doi:10.1016/j.solmat.2019.110129

Cited by 22 publications

(12 citation statements)

References 35 publications

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“…The FoM values obtained for the TiO 2 nanodisk structures in this work (~ 7%) are comparable to the ones (~ 5.9%) obtained with Si NC arrays directly structured on Si, when considering the same wavelength spectrum for the FoM. 3 Here we note that with additional conformal Si 3 N 4 coating on Si NC arrays 3 or using multilayer dielectric coatings, 21,24,27 broadband surface reflectance can be reduced to less than 1.5-3%. However, these approaches require either direct etching of the solar cell material and/or multiple process steps to fabricate the ARC coating.…”

Section: Solar-weighted Reflectance Of Structured Tio 2 Np-based Optisupporting

confidence: 80%

“… 1 Amongst metal oxides, TiO 2 is an interesting candidate due to its fairly high RI (n≈2.4–2.9) and transparency in the visible-NIR wavelength spectrum. 13 - 17 TiO 2 (nano)materials have been utilized in solar cell devices such as dye-sensitized solar cells, polymer-inorganic hybrid solar cells, quantum dot-sensitized solar cells, and perovskite solar cells, 13 heterojunction solar cells with electron-selective TiO 2 contact, 18 photo electrochemical water splitting, 19 as part of (graded-index) anti-reflection layer coating(s), 20 - 26 quasi-periodic multilayer ARCs, 27 light manipulation metasurfaces, 28 - 36 and for light extraction in light emitting diodes (LEDs) 37 - 39 .…”

Section: Introductionmentioning

confidence: 99%

“…utilized in solar cell devices such as dye-sensitized solar cells, polymer-inorganic hybrid solar cells, quantum dot-sensitized solar cells, and perovskite solar cells, 13 heterojunction solar cells with electron-selective TiO 2 contact, 18 photo electrochemical water splitting, 19 as part of (graded-index) anti-reflection layer coating(s), [20][21][22][23][24][25][26] quasi-periodic multilayer ARCs, 27 light manipulation metasurfaces, [28][29][30][31][32][33][34][35][36] and for light extraction in light emitting diodes (LEDs) [37][38][39] .…”

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confidence: 99%

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Embossed Mie resonator arrays composed of compacted TiO2 nanoparticles for broadband anti-reflection in solar cells

Visser

Chen

Désières

et al. 2020

Sci Rep

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Mie resonator arrays formed by embossing titanium dioxide (tio 2) nanoparticles (nps) from solution are investigated as optical coatings for anti-reflection applications. Compacted nanoparticle assemblies offer unique possibilities to tailor the effective refractive index (RI). Here, we demonstrate a simple table-top, low pressure, and low temperature method to fabricate structured optical coatings. TiO 2 nanostructures in the form of nanodisks support Mie resonances in the visible wavelength spectrum and exhibit strong forward scattering into the high index substrates, making them suitable as broadband anti-reflection coatings for solar cells. TiO 2 np-based nanodisk arrays are designed, fabricated, and characterized regarding their anti-reflection properties on Si, GaAs, and InP substrates and solar cells. Detailed finite-difference time-domain simulations are performed to optimize the tio 2 NP-based Mie resonator arrays for the broadband anti-reflection as well as to explain the measured reflectance spectra. The solar-weighted reflectance is used as a figure of merit (FoM). TiO 2 nanodisk arrays on Si show a FoM of ~ 7% in the 400-1,100 nm wavelength spectrum; similar values are obtained for GaAs and InP substrates. TiO 2 nanodisk arrays embossed directly on prefabricated planar single-junction Si, GaAs, and InP solar cells result in an appreciable increase (~ 1.3 times) in the short-circuit current densities. Recently, sub-wavelength dielectric Mie resonator arrays have been reported for applications such as omnidirectional broadband anti-reflection. 1,2 Si nanodisk arrays on Si substrates show low average surface reflectance over the visible-NIR wavelength region. 3 Surface reflection reduction 4-7 plays a major part in increasing the performance of solar cells. For inorganic semiconductor solar cell materials, e.g., Si and III-Vs, due to their high refractive indices (~ 3-4) the reflectance loss (~ 30-40%) is significant. To reduce this, the solar cell surface can either be structured directly or an additional (structured) optical coating can be used. Direct structuring of solar cells can degrade its performance due to process induced defects and surface recombination and invariably requires additional passivation procedures/coatings. Such issues become more significant for thin film solar cells (thickness of ~ 2 µm or less). These limitations may be overcome by depositing a structured optical layer instead. Anti-reflection coatings (ARCs) include commonly used traditional thin-film dielectrics (e.g., silicon dioxide (SiO 2) and silicon nitride (Si x N y)), metal nanoparticles, 8,9 and dielectric nanostructures 3,10,11. While thin film dielectrics are easier to fabricate, multilayers are often required to achieve broadband anti-reflection. Metallic nanoparticles suffer from parasitic absorption in the metal and the resonances are highly sensitive to the RI of the matrix below or around the nanoparticles. 12 High-index dielectric (e.g., Si) Mie resonator arrays placed on Si or substrates with similar refract...

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Section: Solar-weighted Reflectance Of Structured Tio 2 Np-based Optisupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Embossed Mie resonator arrays composed of compacted TiO2 nanoparticles for broadband anti-reflection in solar cells

Visser

Chen

Désières

et al. 2020

Sci Rep

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“…The Fibonacci sequence can be employed to introduce the quasiperiodic PnCs structures, which are utilized in this work. A Fibonacci structure can be created by aligning the two fundamental parts A and B side by side following the recursive rule, as shown in the following equation: 70,71 S n = S n −1 S n −2 , for n ≥ 2…”

Section: Structure's Design and Methodsmentioning

confidence: 99%

Periodic and quasi-periodic one-dimensional phononic crystal biosensor: a comprehensive study for optimum sensor design

et al. 2023

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“…The quasi-periodic PhCs structures that we used in this work can be introduced by layer sequences demonstrated in Eqs. ( 6 , 7 ) 31 , 54 : Simple Fibonacci, F(j): Generalized Fibonacci, FC(j, n): …”

Section: Materials and Mechanismmentioning

confidence: 99%

Ultra-sensitive gas sensor based fano resonance modes in periodic and fibonacci quasi-periodic Pt/PtS2 structures

Zaki

Basyooni

2022

Sci Rep

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Ultra-sensitive greenhouse gas sensors for CO2, N2O, and CH4 gases based on Fano resonance modes have been observed through periodic and quasi-periodic phononic crystal structures. We introduced a novel composite based on metal/2D transition metal dichalcogenides (TMDs), namely; platinum/platinum disulfide (Pt/PtS2) composite materials. Our gas sensors were built based on the periodic and quasi-periodic phononic crystal structures of simple Fibonacci (F(5)) and generalized Fibonacci (FC(7, 1)) quasi-periodic phononic crystal structures. The FC(7, 1) structure represented the highest sensitivity for CO2, N2O, and CH4 gases compared to periodic and F(5) phononic crystal structures. Moreover, very sharp Fano resonance modes were observed for the first time in the investigated gas sensor structures, resulting in high Fano resonance frequency, novel sensitivity, quality factor, and figure of merit values for all gases. The FC(7, 1) quasi-periodic structure introduced the best layer sequences for ultra-sensitive phononic crystal greenhouse gas sensors. The highest sensitivity was introduced by FC(7, 1) quasiperiodic structure for the CH4 with a value of 2.059 (GHz/m.s−1). Further, the temperature effect on the position of Fano resonance modes introduced by FC(7, 1) quasi-periodic PhC gas sensor towards CH4 gas has been introduced in detail. The results show the highest sensitivity at 70 °C with a value of 13.3 (GHz/°C). Moreover, the highest Q and FOM recorded towards CH4 have values of 7809 and 78.1 (m.s−1)−1 respectively at 100 °C.

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Investigation of quasi-periodic structures to increase the efficiency of thin-film silicon solar cells: A comparative study

Cited by 22 publications

References 35 publications

Embossed Mie resonator arrays composed of compacted TiO2 nanoparticles for broadband anti-reflection in solar cells

Embossed Mie resonator arrays composed of compacted TiO2 nanoparticles for broadband anti-reflection in solar cells

Periodic and quasi-periodic one-dimensional phononic crystal biosensor: a comprehensive study for optimum sensor design

Ultra-sensitive gas sensor based fano resonance modes in periodic and fibonacci quasi-periodic Pt/PtS2 structures

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