Abdelali Agdad

In this paper, we present the effects of annealing in a vacuum on the structural, electrical, thermoelectric, optical and properties of a glass/ITO (40 nm)/Cu (5 nm)/Ni (10 nm)/ITO (40 nm) multilayer prepared on glass substrates at room temperature using the Radio Frequency (RF) sputtering technique. The effect of annealing in a vacuum is investiga...

The effect of annealing temperature and atmosphere on structural, optical and electrical properties of indium tin oxide (ITO) thin films with a nanoscale thickness, grown on glass substrates by radio frequency sputtering, was investigated. X-ray diffraction, grazing incidence X-ray reflectivity, scanning electron microscopy, energy dispersive X-ray...

In this work, we study the effect of vacuum annealing and position of metal Cu on structural, optical, electrical and thermoelectrical properties of ITO/Cu/ITO multilayers prepared on glass substrates, at room temperature by Radio Frequency (RF) sputtering. ITO (80 nm)/Cu(5 nm)/ITO (80 nm) ICI(a) and ITO (150 nm)/Cu(5 nm)/ITO (10 nm) ICI(b) multila...

The copper cobalt tin sulfide Cu2CoSnS4 (CCTS) thin films are among the most promising materials for power conversion. We carried out a study on copper-cobalt tin sulfide thin films deposited via a simple route using the sol-gel spin-coating method. X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy dispersive analysis, and...

ITO/Ni/ITO multilayers were deposited on glass substrates by RF sputtering. These multilayers were annealed at temperatures between 200 and 500 °C, under two different atmospheres: nitrogen gas (N2) and vacuum. Optical measurements show that the films treated under nitrogen gas, have a higher average transmittance in the visible range, which reache...

The use of naturally extracted compounds as dye sensitizers is a very promising alternative for the manufacture of low-cost solar cells. These directly convert solar energy to electricity. In the present study, Aloe Latex Solid (ALS), which is an orange-yellow solid compound extracted from Aloe Vera leaves, was deposited on a TiO2 thin film (TiO2/A...

We have studied the structural, optical, electrical and thermoelectric properties of radio frequency (RF)-sputtered indium tin oxide (ITO) thin films, synthesized at room temperature on glass substrates. A target, containing 90 wt% of In2O3 and 10 wt% of SnO2, was used. The structure of ITO thin films was analyzed by x-ray diffraction (XRD) and x-r...

Indium tin oxide (ITO) films are widely used as transparent conducting electrodes in solar cells, gas sensors, and car windows because of their high electrical conductivity and good optical transparency in the visible region. In this work, ITO thin films were prepared by cathodic radio-frequency (RF) sputtering using an ITO target with 90% In2O3 an...

In this work, the morphological, optical, and structural properties of ZnS:Cr films deposited by RF-sputtering are examined for different RF-powers. For this, thin films (ZnS) and (ZnS:Cr) were deposited on glass and Si substrates. The deposition time was set at 90 min, and the RF power varied in the range of 100–200 W. X-ray indicated that all the...

Copper oxide nanowires (CuO NWs) were synthesized by thermally oxidizing copper foils at various heating rates. It has been shown that both monoclinic CuO and cubic Cu2O phases were grown on the copper surface with NW diameters of almost 200 nm for all samples. While NWs were shown to be dense for low heating rates, they end up being broken for qui...

Organic solar cells are considered to be the promising solar technology for the coming year because of their ease of manufacture. In the present study, the Aloe Latex as yellow orange Solid (ALS) collected from the leaves of Aloe Vera plant (aloe barbadensis miller) was used as a natural and cheap sensitizer thin film. The ALS powder was analysed u...

In this study, ZnTe thin films were prepared using the R-F sputtering technique. X-ray diffractogramme indicates that our samples are crystallized in a cubic phase with a F-43 m space group. The UV visible spectrophotometer confirms the surface homogeneity of the deposited films and also the similitude of the value of the optical band gap energy wi...