Amal Bouich

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Optoelectronic Characterization of CuIn(S,Se)2 Thin Grown by Spray Pyrolysis Method for Solar Cells

2018 6th International Renewable and Sustainable Energy Conference (IRSEC), 2018

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Optimization of Electrodeposition Time on the Properties of Cu2ZnSnS4 Thin Films for Thin Film Solar Cell Applications

Electrochemical deposition was used to create a quaternary CZTS (Cu2ZnSnS4) kesterite thin layer.... more Electrochemical deposition was used to create a quaternary CZTS (Cu2ZnSnS4) kesterite thin layer. An aqueous solution of CZTS was used to deposit a thin layer over Indium Tin Oxide. The effects of deposition time (variation) on CZTS thin films under ambient conditions were investigated in this study. Several available characterization systems were used to study the samples as they were produced. The polycrystalline description of the layer is inveterate by X-ray diffraction (XRD). The SEM as well as AFM study show that deposition time improved surface morphology and topography of CZTS thin films which increase several nm in grain size. Furthermore, depending upon the deposition duration, the optical study reveals an acceptable bandgap in a range of 1.44 to 1.71 eV. Characteristics of high-quality CZTS absorber layers for solar cell applications are discovered to be affected by deposition time variation. To check the effect of this bandgap variation (1.44 to 1.71 eV) on the performan...

Enhancing the stability and crystallinity of CsPbIBr2 through antisolvent engineering

Journal of Materials Science

All inorganic lead-based perovskites containing bromine-iodine alloys, such as CsPbIBr2, have ari... more All inorganic lead-based perovskites containing bromine-iodine alloys, such as CsPbIBr2, have arisen as one of the most attractive candidates for absorber layers in solar cells. That said, there remains a large gap when it comes to film and crystal quality between the inorganic and hybrid perovskites. In this work, antisolvent engineering is employed as a simple and reproducible method for improving CsPbIBr2 thin films. We found that both the antisolvent used and the conditions under which it was applied have a measurable impact on both the quality and stability of the final product. We arrived at this conclusion by characterising the samples using scanning electron microscopy, X-ray diffraction, UV–visible and photoluminescence measurements, as well as employing a novel system to quantify stability. Our findings, and the application of our novel method for quantifying stability, demonstrate the ability to significantly enhance CsPbIBr2 samples, produced via a static one-step spin c...

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Removal of Congo red from aqueous solution in single and binary mixture systems using Argan nutshell wood

Pigment & Resin Technology

Purpose Argan nutshell wood (ANW) has been used in this study as an agricultural solid waste to r... more Purpose Argan nutshell wood (ANW) has been used in this study as an agricultural solid waste to remove Congo red (CR) from an aqueous solution in single and mixture binary in the presence of methylene blue (MB) or crystal violet (CV). Design/methodology/approach The ANW was characterized by Fourier transform infrared and scanning electron microscope analysis. The effect of ANW dose (8–40 gL−1), contact time (0–180 min), pH of the solution (4–11) and CR dye concentration (100–500 mgL−1) on CR adsorption was studied in batch mode and evaluated by kinetic and isotherm models in a single system. In the binary system, the CR removal was studied from a CR + MB and CR + CV mixture with different percentages of dyes, ranging from 0% to 100%. Findings The pseudo-second-order and the Langmuir models could best describe the CR sorption onto ANW in a single system. In addition, in the case of the binary system, there is the appearance of a synergistic phenomenon between the CR and the other cat...

Shedding Light on the Effect of Diethyl Ether Antisolvent on the Growth of (CH3NH3) PbI3 Thin Films

JOM

Comparative study of binary cadmium sulfide (CdS) and tin disulfide (SnS2) thin buffer layers

Solar Energy

Enhanced optical and structural properties of V-doped binary SnS2 buffer layer

Solar Energy

Electrodeposited CdZnS/CdS/CIGS/Mo: Characterization and Solar Cell Performance

JOM

AMAL BOUICH,1,3,4 SHAFI ULLAH,1,2 HANIF ULLAH,1,2 MIGUEL MOLLAR,1 BERNABE´ MARI´,1 and MOHAMED EB... more AMAL BOUICH,1,3,4 SHAFI ULLAH,1,2 HANIF ULLAH,1,2 MIGUEL MOLLAR,1 BERNABE´ MARI´,1 and MOHAMED EBN TOUHAMI3 1.—Department of Applied Physics, Institute de Disseny i Fabrication, Universitat Polite`cnica de Vale`ncia, Camı ´ de Vera s/n, 46022 Vale`ncia, Spain. 2.—Electrical Engineering Department, FUUAST Khayaban-e-Suhrwardy, Islamabad 44000, Pakistan. 3.—Laboratory of Materials Engineering and Environment, University Ibn Tofail BP, 133-14000 Kenitra, Morocco. 4.—email: bouich.amal@gmail.com Copper indium gallium and di-selenium (CIGS) films have been successfully deposited by the electrodeposition technique. The as-deposited films were annealed at 450C for 40 min. The (CdS) and cadmium–zinc sulfide (CdZnS) used as buffer and window layer, respectively, were synthesized by the chemical bath deposition technique. The prepared samples were characterized for structure by x-ray diffraction. The morphology of the deposited films was analyzed by scanning electron microscopy. Atomic force microscopy and UV– Vis spectroscopy were used for surface roughness and optical properties. A typical solar cell structure consists of CdZnS–CdS and CIGS–Mo as window, buffer and absorber layer, respectively. The device performance was measured under AM 1.5 global spectrum for 1000 W/m2 irradiance, where the obtained efficiencies were in the range of 2–3%. Open-circuit voltage was 345 mV, short circuit current was 16.8 mA/cm2 and the fill factor was 38.18%.

Deposit on different back contacts: to high-quality CuInGaS2 thin films for photovoltaic application

Journal of Materials Science: Materials in Electronics

Cu(In,Ga)Se2 (CIGS) absorber layer for photovoltaic application was successfully deposited by dif... more Cu(In,Ga)Se2 (CIGS) absorber layer for photovoltaic application was successfully deposited by diferent substrate, indium tin oxide (ITO), fuorine-doped tin oxide (FTO) and molybdenum (Mo) after optimization of the operating parameters of the deposited flms. The structural, morphological, optical and electrical properties of the CIGS flms were analyzed by X-ray difraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The inter-planar distance between the planes is estimated at 0.36 nm. Atomic force microscopy (AFM) samples deposited on Mo had the highest level of 751 nm for roughness compared to other samples. High absorbance and low transmittance are observed for flms prepared with a shot interval energy of about 1.6 eV. Optical constants such as the refractive index (n), the extinction coefcient (k), the real part (εr) and the imaginary part (εi) of the dielectric constant were extracted from the data of absorbance/transmittance. The optoelectronic properties of this CuInGaS2 material make it advisable to use it for the manufacture of more efcient solar panels.

Optoelectronic characterization of CuInGa(S)2 thin films grown by spray pyrolysis for photovoltaic application

Applied Physics A

Influence of Fe Content in Binary SnS2 Synthesis by Hydrothermal Technique for Photovoltaic Application

ECS Journal of Solid State Science and Technology

Experimental, theoretical, and numerical simulation of the performance of CuInxGa(1-x) S2-based solar cells

Optik

Inorganic perovskites improved film and crystal quality of CsPbIBr2 when doped with rubidium

Journal of Materials Science: Materials in Electronics

Amal Bouich

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