scholarly journals Design and Optimization of the Antireflective Coating Properties of Silicon Solar Cells by Using Response Surface Methodology

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 721
Author(s):  
Yahia F. Makableh ◽  
Hani Alzubi ◽  
Ghassan Tashtoush
Keyword(s):  
Response Surface Methodology ◽  
Solar Cells ◽  
Response Surface ◽  
Zno Nanoparticles ◽  
Visible Spectral Range ◽  
Silicon Solar Cells ◽  
Antireflective Coating ◽  
Antireflective Coatings ◽  
Zinc Oxide Nanostructures ◽  
Design And Optimization

The design and optimization of a nanostructured antireflective coatings for Si solar cells were performed by using response surface methodology (RSM). RSM was employed to investigate the effect on the overall optical performance of silicon solar cells coated with three different nanoparticle materials of titanium dioxide, aluminum oxide, and zinc oxide nanostructures. Central composite design was used for the optimization of the reflectance process and to study the main effects and interactions between the three process variables: nanomaterial type, the radius of nanoparticles, and wavelength of visible light. In this theoretical study, COMSOL Multiphysics was utilized to design the structures by using the wave optics module. The optical properties of the solar cell’s substrate and the three different nanomaterial types were studied. The results indicated that ZnO nanoparticles were the best antireflective coating candidate for Si, as the ZnO nanoparticles produced the lowest reflection values among the three nanomaterial types. The study reveals that the optimum conditions to reach minimum surface reflections for silicon solar cell were established by using ZnO nanoparticles with a radius of ~38 nm. On average, the reflectance reached ~5.5% along the visible spectral range, and approximately zero reflectance in the 550–600 nm range.

Antireflective Coatings with Nanostructured TiO2 Thin Films for Silicon Solar Cells

2012 ◽  
Vol 21 ◽  
pp. 89-94 ◽  
Author(s):  
Elena Manea ◽  
Catalin Corneliu Parvulescu ◽  
Munizer Purica ◽  
Elena Budianu ◽  
Florin Comanescu
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Silicon Solar Cells ◽  
Antireflective Coating ◽  
Radiation Wavelength ◽  
Spectral Transmittance ◽  
Antireflective Coatings ◽  
Glass Substrates ◽  
Transparent Substrate

This paper presents the preparation and characterization of nanostructured TiO2 films designated to the integration of antireflective (AR) layers into the fabrication process of the silicon solar cells. The nanostructured titanium dioxide (TiO2) layers have been obtained by the anodization of the Ti layer deposited by sputtering technique on glass substrates and silicon wafers. The obtained TiO2 films were optically characterized using the Spectroscopic Ellipsometry (SE) and the values of the refractive index are in a range of 1.66-1.76 at 632 nm radiation wavelength. The transmittance of 90 nm TiO2 thin films deposited on transparent substrate, evaluated by the spectrophotometry method, is over 70%. The TiO2 band gap of 3.3 eV was evaluated from the spectral transmittance characteristic. Silicon solar cells with various AR coatings of TiO2, SiO2 and SiO2 - TiO2 have been fabricated. The optoelectrical characterization proved that the output maximum power (Pmax) for the solar cell with a 90 nm TiO2 layer is with 28% greater than Pmax for the solar cells with SiO2 as AR layer and with 15.5 % greater than Pmax for the solar cells having a two-layer antireflective coating of SiO2 - TiO2.

Antireflective and passivation properties of the photovoltaic structure with Al2O3 layer of different thickness

2018 ◽  
Vol 35 (3) ◽  
pp. 177-180 ◽  
Author(s):  
Barbara Swatowska
Keyword(s):  
Solar Cells ◽  
Base Material ◽  
Passivation Layer ◽  
Silicon Solar Cells ◽  
Optical Parameters ◽  
Antireflective Coating ◽  
Antireflective Coatings ◽  
Al2o3 Layer ◽  
Content Type ◽  
Different Thickness

Purpose The purpose of this study is to verify the possibility of applying alumina (Al2O3) as the passivation and antireflective coating in silicon solar cells. Design/methodology/approach Model of a studied structure contains the following layers: Al2O3/n+/n-type Si/p+/Al2O3. Optical parameters of the aluminium oxide films on silicon wafers were measured in the range of wavelengths from 250 to 1,400 nm with a spectrophotometer Perkin Elmer Lambda 900. The minority carrier lifetime at the start of the n-type Si base material and after each of the next technological process was analysed by a quasi-steady-state photoconductance technique. The electrical parameters of the solar cells fabricated with four different thickness of the Al2O3 layer were determined on the basis of the current-voltage (I-V) characteristics. The silicon solar cells of 25 cm2 area and 300 µm thickness were investigated. Findings The optimum thickness of alumina as passivation layer is 90 nm. However, considering also antireflective properties of the first layer of a photovoltaic cell, the best structure is silicon with alumina passivation layer of 30 nm thickness and with TiO2 antireflective coatings of 60 nm thickness. Such solution has allowed to produce the cells with the fill factor of 0.77 and open circuit voltage of 618 mV. Originality/value Measurements confirmed the possibility of applying the Al2O3 as a passivation and antireflective coating (obtained by atomic layer deposition method) for improving the efficiency of solar cells.

scholarly journals Design and optimization of Ag-dielectric core-shell nanostructures for silicon solar cells

AIP Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 097129 ◽  
Author(s):  
Feng-Xiang Chen ◽  
Xi-Cheng Wang ◽  
Dong-Lin Xia ◽  
Li-Sheng Wang
Keyword(s):  
Solar Cells ◽  
Silicon Solar Cells ◽  
Core Shell ◽  
Design And Optimization ◽  
Shell Nanostructures

Preparation and Optimization of Capsaicin-Loaded Chitosan Nanoparticles as Delivery Systems Using Box-Behnken Design

2020 ◽  
Vol 998 ◽  
pp. 277-282
Author(s):  
Narissara Kulpreechanan ◽  
Feuangthit N. Sorasitthiyanukarn
Keyword(s):  
Response Surface Methodology ◽  
Experimental Design ◽  
Response Surface ◽  
Functional Foods ◽  
Water Solubility ◽  
Chitosan Nanoparticles ◽  
Tween 80 ◽  
Limiting Factors ◽  
Design And Optimization ◽  
Chili Peppers

Capsaicin (CAP) is a pungent alkaloid of chili peppers that is obtained from chili peppers that has a variety of pharmacological activities and can be used in various areas, such as functional foods, nutritional supplements and medical nutrition. Capsaicin has important anticancer, antioxidant and anti-inflammatory properties that allow to be applied as treatment for several diseases. However, its lack of water solubility, as well as its poor oral bioavailability in biological systems, show limiting factors for its successful application. Recently, the formulation of capsaicin for food and pharmaceutical use is limited. Therefore, the present study emphasized on preparation of capsaicin-loaded chitosan nanoparticles (CAP-CSNPs) and design and optimization of the formulation using Box-Behnken experimental design (BBD) and response surface methodology (RSM). The capsaicin-loaded chitosan nanoparticles were prepared by o/w emulsification and ionotropic gelification. The optimized formulation of capsaicin-loaded chitosan nanoparticles had a chitosan concentration of 0.11 (%w/v), a Tween 80® concentration of 1.55 (%w/v) and a CAP concentration of 1 mg/mL and that it should be stored at 4°C. Box-Behnken experimental design and response surface methodology was found to be a powerful technique for design and optimization of the preparation of capsaicin-loaded chitosan nanoparticles using limited number of experimental runs. Our study demonstrated that capsaicin-loaded chitosan nanoparticles can be potentially utilized as dietary supplements, nutraceuticals and functional foods.

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