Spray pyrolysis was used to deposit indium sulfide (In2S3) films, with or without silver doping. The films are polycrystalline, and the inclusion of Ag in In2S3 structure leads formation a solid solution, crystallite size order tens nanometers. exhibit semiconductive behavior, incorporation an increase charge carrier concentration, enhancing electrical conductivity films. small polaron hopping ...

We demonstrate non-degenerate photon-pair generation by spontaneous parametric down conversion in a silver gallium sulfide AgGaS$_2$ crystal. By tuning the pump wavelength, we achieve phase matching over large spectral range. This allows to generate idler photons mid-infrared range above 6 $\mu m$ wavelength with corresponding signal visible. Also, show photon pair broad bandwidth. These result...

    Introduction Epithermal deposits are usually found in association with near-surface magmatic-hydrothermal environments with volcanic rocks. According to studies, their formation depth is less than 1.5 km and the temperature for their formation is less than 300 ° C. Epithermal deposits are usually rich in gold to gold-silver and rich in silver and include low sulfide, medium sulfide and hig...

The unique opto-electronic properties coupled with small surface of silver nanoparticles have opened the door for their use in sensing applications. Silver are extensively used identification various health and environmentally hazardous pollutants such as heavy metal ions other harmful organic chemicals extremely low detection limits. In recent years, toxicity has further been reduced using gre...

The development of nanotechnology has accelerated the use silver nanoparticles (AgNPs) in household chemicals and accumulation Ag sewage treatment systems. application sludge products to soils raises concerns over safety function biogeochemical cycles soil belowground ecosystem. Here, we assess potential risk transfer under AgNPs exposure its effects on trophic nitrogen (N) through a animal foo...