With this study for the first time effects of post annealing on morphological, structural, optical and electrical properties of spray pyrolyzed copper–indium–gallium–sulfide (CuInGaS2) thin films have been investigated. Pros-and-cons of conventional (CA) and rapid thermal annealing (RTA) have...

New single source precursors to hexagonal gallium sulfide (GaS) were investigated. Four organometallic compounds containing a Ga2S2 ring core, [R2Ga(μ-SSiR′3)]2 (R = Me, Et; R′ = Ph, iPr), were prepared and thermally decomposed to give chemically pure gallium sulfide. The decomposition temper...

Nanocrystalline gallium sulfide (Ga2S3) and indium sulfide (In2S3) have been prepared by a two-step process. The first step involves metathesis reaction of trimethyl gallium/indium ether adduct (Me3Ga/In·OEt2) with 1,2-ethanedithiol (HSCH2CH2SH) resulting in the formation of a polymeric precurs...

The paper describes the deposition of thin films of gallium sulphide on soda-lime glass substrates by thermal evaporation of chemically synthesized powders consisting of gallium sulphide and gallium oxyhydroxide from a Mo or Ta boat and the evolution of their compositional, structural and optica...

Gallium sulfide single crystal is a potential material for nonlinear optics. Due to its high non-linearity it can be used as a material for IR and THz frequency converters. In the present work GaS bulk crystals of precise stoichiometry and high quality were melt grown using vertical zone melting...

Gallium sulfide (GaxS) and copper gallium sulfide (CuxGaySz) were synthetized by atomic layer deposition (ALD), using copper acetylacetonate Cu(acac)2, hexakis(dimethylamino)digallium [Ga(NMe2)3]2 and hydrogen sulfide (H2S). Thanks to the compatibility of the CuxS and GaxS ALD windows, a supercy...

Over 100 new equiatomic ternary rare earth (R)-transition metal (T) silicides, germanides and gallides were synthesized and structurally analysed either by evaluating powder diffraction photographs or in the case of ScRhSi, ScPtSi, YNiSi, ScRuGe and PrPtGe by refining single-crystal diffraction ...

There is great interest in the medical application of the radioactive isotopes of the group IIIB elements gallium and indium. The design of radiopharmaceuticals labeled with gallium and indium is complicated by the fact that both metals form strong chelates with the plasma protein transferrin. D...

A new precipitation process is reported for the removal and recovery of gallium (III) from aqueous solutions using sodium di-(n-octyl) phosphinate. The complexes formed have low solubility in water and the ligand is easily regenerated, as previously reported for the precipitation of lead and zin...

Powdery photocatalyst has long been studied, yet its low reusability in suspension system is the bottleneck which hinders its large-scale application. An alternative method to overcome this drawback is developing magnetic recyclable composite. In this work, we prepared lanthanum-nitrogen co-dope...

The nano crystalline hexagonal strontium ferrite nanoparticles SrFe12O19 were synthesized successfully by chemical co-precipitation method. Thin films of strontium ferrite were prepared on glass substrate and characterized by various techniques such as XRD, SEM, TEM, EDS, UV-spectroscopy and FTI...

Powdery photocatalyst has long been studied in various aspects, yet its low recovery in suspension system is still the bottleneck which hinders its practical application. An alternative method to overcome this shortcoming is to develop magnetic recyclable ferrite-based hybrid photocatalyst. In t...

Separation of O2 from air to produce a high-purity stream of N2 is considered via a two-step solar thermochemical cycle based on aluminum-doped strontium ferrite reduction/oxidation reactions. The cycle steps encompass the (1) thermal reduction, driven by concentrated solar irradiation; and (2) ...

This work reports a detailed chemical looping investigation of strontium ferrite (SrFeO3−δ), a material with the perovskite structure type able to donate oxygen and stay in a nonstoichiometric form over a broad range of oxygen partial pressures, starting at temperatures as low as 250°C (reduct...

In this paper, we have studied the influence of Ce3+on the structural, magnetic and Mossbauer properties of Sr1- xCexFe12O19 (x = 0.0, 0.05, 0.1, 0.15, 0.2 and 0.25). We have synthesized Sr1- xCexFe12O19 using the sol – gel technique. We have investigated the structural and magnetic properties ...

An attempt of fluorine and chlorine substitution for oxygen in strontium ferrite SrFeO3–δ was undertaken in search of a new means of influence on the oxide properties. An uncontrollable removal of halogen-ions from oxides during synthesis was detected. Nevertheless, residual halogens were foun...

Strontium ferrite (SrFe12O19) and Strontium ferrite enwrapped polythiophene (SrF/PT) composites have been synthesized via sol-gel and in-situ emulsion polymerization techniques for the first time. The structural, morphological, magnetic, dielectric, and electromagnetic interference (EMI) shieldi...

Heat recovery can often go hand-in-hand with pollution control. An installation in Norway is described, where heat removed upstream of bag filters on a ferro-silicon plant is used to raise steam for electricity generation.

The effects of the introduction of iron or ferro-silicon particles on the graphitization of carbon mixes at relatively low temperatures are described. It is shown (i) that both iron and ferro-silicon materially accelerate the rate of graphitization and that ferrosilicon is more effective than ir...

Novel tempered resin bonded ferro-silicon nitride-corundum refractories containing 0 wt%, 15 wt% and 25 wt% ferro-silicon nitride were prepared respectively. Creep tests were performed under a load of 0.2 MPa at a temperature of 1300 °C for 50 h in air. The results showed that creep performance...