Influence of ozone supply mode and aeration on photocatalytic ozonation of organic pollutants in wastewater using TiO and ZnO nanoparticles.

Photocatalytic ozonation, which combines the effects of lighting and ozonation, has been shown to enhance the decolorization and degradation of organic pollutants in wastewater. Dye solutions with concentrations of 10 ppm for both methylene blue and methyl orange dyes were used. The influence of ozoneation on the performance of photocatalytic activity of TiO and ZnO nanoparticles for the removal of organic dyes from aqueous solutions was investigated.

Fabrication and characterization of a porous ZnO flexible UV photodetector on fiberglass and the electrode dimensions effect.

In this study, three flexible metal-semiconductor-metal ultraviolet photodetectors are fabricated on the FR4 fiberglass substrate based on the porous zinc oxide by radiofrequency sputtering. Their copper electrodes were created by printed circuit board, a simple and cheap method. Here, the effect of porosity on the photodetector parameters is discussed.

The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode.

In this study, the effect of electrode shape difference on the height of the Schottky barrier and the electric field in flexible photodiodes (PDs) has been investigated. For this purpose, three different electrode designs were prepared on three flexible FR4 layers that were coated with Zinc Oxide (ZnO). The printing circuit board (PCB) method was used to create these copper electrodes.

Bandgap and refractive index estimates of InAlN and related nitrides across their full composition ranges.

III-Nitride bandgap and refractive index data are of direct relevance for the design of (In, Ga, Al)N-based photonic and electronic devices. The bandgaps and bandgap bowing parameters of III-nitrides across the full composition range are reviewed with a special emphasis on InAlN, where less consensus was reached in the literature previously. Considering the available InAlN data, including those recently reported for low indium contents, empirical formulae for InAlN bandgap and bandgap bowing parameter are proposed.

Scintillation and bit error rate analysis of a partially coherent flat-topped array laser beam in maritime and terrestrial non-Kolmogorov atmospheric environments on a slant path.

In this paper, on the basis of the extended Huygens-Fresnel principle, a semi-analytical expression for describing the on-axis scintillation index of a partially coherent flat-topped laser beam through non-Kolmogorov maritime and terrestrial atmospheric environments on a slant path is derived. Consequently, by using the log-normal intensity probability density function, the bit error rate (BER) is evaluated. The effects of source factors (such as wavelength, order of flatness, and beam width) and the non-Kolmogorov turbulent atmosphere parameters (such as the Kolmogorov inner scale, the spectral power-law exponent, and the turbulence structure constant) on propagation behavior of the scintillation index, and hence on the BER, are studied in detail.