5 documents found, page 1 of 1
The effects of annealing process on the characteristics of β-In2S3 powder in pe...
Timoumi, A.; Tiss, Belgacem; Zayoud, W.; Sharma, A.; Kraini, M.; Bouguila, N.; Moura, C.; Cunha, L.; Khirouni, K.Due to its significant expansion as a sustainable energy source, the investigation of thin-film-based solar cells is a very important field of research among materials scientists. Nowadays, CdTe based photovoltaic devices are developed using indium sulfide (In2S3) as potential material. This study reports the effect of the annealing temperature, up to 450 °C, on In2S3 physical properties, and the consequences f...
Influence of silver doping on physical properties of sprayed In2S3 films for so...
Tiss, Belgacem; Moualhi, Y; Bouguila, Noureddine; Erouel, M.; Kraini, M.; Alaya, Sahbi; Aouida, S.; Vázquez-Vázquez, C.; Moura, C.; Cunha, LuísA set of silver-doped indium sulphide (In2S3:Ag) thin films were deposited by spray pyrolysis technique, at 350 degrees C, to analyze the effects of the Ag doping on the physical properties of the films. Within the limits of the analyzed dopant concentration, X-ray diffraction (XRD) revealed the polycrystalline nature of the films, crystalizing in the beta-In2S3 cubic phase, regardless the level of doping. Both...
The effect of vacuum and air annealing in the physical characteristics and phot...
Tiss, B.; Benfraj, M.; Bouguila, N.; Kraini, M.; Alaya, S.; Cristea, D.; Croitoru, C.; Craciun, V.; Craciun, D.; Prepelita, P.; Velicu, I-L.; Tiron, V.Indium sulfide thin films, doped with silver, were synthesized by spray pyrolysis technique. These samples were subsequently annealed in air and in vacuum, at the temperature of 400 ◦C, for 2 h. This work reports the effect of the thermal treatments on the structure, morphology and optical characteristics of the films, but also the study of the photodegradation efficiency of methylene blue solution. The as-prod...
Electrical behavior and photocatalytic ativity of ag-doped in2S3 thin films
Tiss, Belgacem; Ben Fradj, A.; Bouguila, Noureddine; Cristea, Daniel; Croitoru, Catalin; Kraini, M.; Vázquez-Vázquez, C.; Cunha, Luís; Moura, C.Indium sulfide thin films with different amounts of silver doping were deposited by spray pyrolysis. The samples were tested as potential photocatalysts by degrading methylene blue (MB) dye aqueous solution under the effect of light. Samples were prepared using precursors with Ag/In ratios of 0 at.%, 4 at.%, and 6 at.%, corresponding to a measured and normalized Ag concentration in the films of 0.0 at.%, 1.4 at...
Electrical transport of sprayed In2S3:Ag thin films
Tiss, B.; Bouguila, N.; Kraini, M.; Khirouni, K.; Vázquez–Vázquez, C.; Cunha, L.; Moura, C.; Alaya, S.Silver doped indium sulfide (In2S3:Ag) thin layers were prepared by spray pyrolysis. The Ag concentration varies in the range of 0–6 at%. The X-ray diffraction (XRD) indicates the presence of cubic phase of β-In2S3 and the crystallite size values exhibit a maximum at an Ag concentration of 4%. In addition, morphological analysis by atomic force microscopy (AFM) shows that the film surface is continuous, compact...