Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Thin film


Structural and Morphological Investigation of Cr2O3/WO3Oxides Films Composite Using Modified Spray Pyrolysis Technique

Zena A. Salman; Farhad M. Othman; Alaa A. Abdul-hamed

Engineering and Technology Journal, 2019, Volume 37, Issue 10A, Pages 435-441
DOI: 10.30684/etj.37.10A.9

Cr2O3/WO3 oxides film composite was successfully synthesized via advanced controlled chemical spray pyrolysis deposition technique using two nozzles. Two solutions of tungstic acid and chromium chloride was sprayed separately at various ratios of (W: Cr) at the same time on a silicon substrate at 500 °C, the film then heat-treated at 400 °C for the 60s. The crystal structure, microstructure and morphology properties of prepared films were studied. Based on characterization techniques, crystallized Cr2O3/WO3 mixed oxides films were investigated by X-ray diffraction after the annealing process, with film thickness of about 500 nm. The SEM and AFM revealed that rough and porous microstructures of Cr2O3/WO3 were formed. The obtained microstructure has been known as one of the most effective microstructures due to having high surface area particularly in gas detection applications

Fabrication of Tio2 and V2o5 Thin Films by Powder Coating Technique

Mohammed S. Hamza; Alaa Aladdin; Shatha Kazem

Engineering and Technology Journal, 2013, Volume 31, Issue 16, Pages 3194-3202

Titanium dioxide (TiO2) and vanadium oxide (V2O5) in different mixing percentage
(100, 50, 0)% from them powders as thin film on substrate of glass .the coating
thickness was ( 0.37 ±0.03 μm ).
Thin films were inspection by microphotographs with scanning electron microscopy
(SEM) and x-ray diffraction (XRD).
The results showed that thin films was prepared crystalline and also the compound
(tio2, v2o5), and the structure was regular and smooth.