Chemical spray pyrolysis technique was used at temperature 250˚C with annealing 400C˚( for 1hour) to deposition tungsten oxide thin film different doping concentration of Au nanoparticle (0, 10, 20, 30 and 40) wt.% on glass substrate thickness about 100 nm. The structural electrical properties were investigated. structure shows that the films by x-ray diffraction (XRD) (250˚C) amorphous while h...

We examine the possibility of high temperature superconductivity from two-dimensional semiconductor without antiferromagnetic fluctuations. The weak coupling BCS theory is applied, especially where the Fermi level is near the bottom of the conduction band. Due to screening, the attractive interaction is local in k-space. The density of states(DOS) does not have a peak near the bottom of the ban...

We report that oxide composite electrodeposition can be used for the facile preparation of metal-doped BiVO4 photoelectrodes for photoelectrochemical water oxidation. The photoactivity of electrodeposition film was improved by the addition of a small amount of tungstic acid particles during the electrodeposition. These particles are incorporated in the deposit and finally generate tungstendoped...

UV-visible diffuse reflectance spectroscopy was used to probe the electronic structure and domain size of tungsten oxide species in crystalline isopolytungstates, monoclinic WO3, and dispersed WOx species on ZrO2 surfaces. UV-visible absorption edge analysis, CO2 chemisorption, and Raman spectroscopic results show that three distinct regions of WOx coverage on ZrO2 supports appear with increasi...

In this work, reaction center protein (RC) isolated from Rhodobacter sphaeroides purple bacteria was coupled with WO3(∙0.33H2O) via physical adsorption, where vectorial electron transfer (from RCs towards the inorganic carrier) demonstrated using flash kinetics and photoluminescence measurements. The efficiency of interaction between correlated to components’ surface charge at working pH struct...