Tandem solar cells consisting of high bandgap cadmium telluride alloys atop crystalline silicon have potential for high efficiencies exceeding the Shockley-Queisser limit. However, experimental results have fallen well below this goal significantly because of non-ideal current matching and light trapping. In this work, we simulate cadmium zinc telluride (CZT) and crystalline silicon (c-Si) tand...

In this study, the effect of calcium (Ca) and erbium (Er) on microstructure, mechanical properties, corrosion behavior magnesium-zinc alloys is reported. The were prepared using disintegrated melt deposition (DMD) technique alloying additions as Zn, Ca, Mg-Er master followed by hot extrusion. Results show that addition Er has significantly reduced grain sizes Mg-Zn also when compared to pure ma...

New dental precious metal alloys for resin bonding without alloy surface modification were developed by adding base metals (In, Zn, or Sn). Before this, binary alloys of Au, Ag, Cu, or Pd containing In, Zn, or Sn were studied for water durability and bonding strength with 4-META resin. The adhesion ability of the binary alloys was improved by adding In equivalent to 15% of Au content, Zn equiva...

Single-source molecular precursors were used to synthesize II-VI compound semiconductor nanowires for the first time. Cadmium sulfide and zinc sulfide nanowires were prepared using cadmium diethyldithiocarbamate, Cd(S2CNEt2)2, and zinc diethyldithiocarbamate, Zn(S2CNEt2)2, respectively, as precursors in a gold nanocluster-catalyzed vapor-liquid-solid growth process. High-resolution transmission...

Leaded brass alloys with high zinc content are classified as dual-phase (?-??) alloys. For these alloys, ?-?? phase transformation induced by thermomechanical processing (TMP) is expected to play a significant role not only in the formation of ? and ?? phases uniformity lead particles but also development ?3 boundaries their variants phase. To assess such impact, current study has employed two ...

Biodegradable alloys and especially magnesium-based are considered by many researchers as materials to be used in medicine due their biocompatibility excellent mechanical properties. have applications the medical field particular obtaining implants for small bones of feet hands, ankles, or joints. Studies shown that Mg, Zn, Ca found significant amounts human body contribute effectively efficien...

Introduction The steam reforming of alcohols, particularly methanol and ethanol, presents a promising method of producing hydrogen. Due to its high activity at relatively low temperatures, Pd/ZnO has received attention as a methanol steam reforming (MSR) catalyst to produce H2 at very high CO2 selectivity. 1 Pd supported on most other materials dehydrogenates methanol to CO. Similarly, Co catal...

The present work presents new bactericidal coatings, based on two families of non-toxic, antimicrobial glasses belonging to B2O3-SiO2-Na2O-ZnO and SiO2-Na2O-Al2O3-CaO-B2O3 systems. Free of cracking, single layer direct coatings on different biomedical metallic substrates (titanium alloy, Nb, Ta, and stainless steel) have been developed. Thermal expansion mismatch was adjusted by changing glass ...