In an attempt to get more insight into the way of formation of recently obtained unusual iodide-sulfide-nitride clusters Ln3I5(S2)(S2N2)(THF)10 (Ln = Nd (1), Dy (2)) and modify this synthesis reactions of dysprosium iodide-nitride with sulfur were carried out in various conditions. It was found ...

Indium-doped tin tellurides are promising and thoroughly investigated thermoelectric materials. Due to the low solubility of In2Te3 in SnTe and vice versa, samples with the nominal composition (SnTe)3-3x(In2Te3)x with 0.136 ≤ x ≤ 0.75 consist of a defect-rocksalt-type Sn-rich and a defect-spha...

Copper Indium Telluride films were deposited for the first time by the pulse electrodeposition technique at different duty cycles in the range of 6–50% at room temperature and at a constant potential of −0.66 V(SCE). The films exhibited single phase copper indium telluride. The grain size incre...

The electrochemical behaviour of Cu(II) ions has been investigated in acidic aqueous solutions in the presence of dicyanamide (dca), an anion frequently used as bridging agent in coordination polymers. The cyclic voltammograms recorded at a gold electrode have revealed two consecutive one electr...

Copper telluride thin films were deposited by pulsed laser deposition on Corning glass substrates using powders of Cu2Te as target. Films were grown at substrate temperatures ranging from room temperature to 300 °C. The structural, compositional and electrical properties were analyzed as a func...

Bi2Te3 nanotubes have been fabricated by a two-step process at room temperature in aqueous mediums. Nanocrystalline nickel nanotubes were synthesized by electroless deposition in ion track template membranes and they were employed as sacrificial materials to order to transform it into nanotubes ...

Copper telluride thin films were deposited on the glass substrates at different substrate temperatures viz., Room Temperature, 200, 300, 400 and 500 °C employing electron beam evaporation method. The effect of substrate temperature on the physical properties of copper telluride films was invest...

Within thermoelectric generators, the chemical diffusion of a contact material into the active thermoelectric material is a potential cause for degradation, which has rarely been discussed in literature. Frequently, this degradation phenomenon leads to major problems in developing new modules an...

The binary semiconductor materials Cu1.81Te and SnTe materials, without and with manganese (Mn2+) doping, were prepared by dropping a Cu-Sn-Te solution on a commercial glass substrate to fabricate a co-binary thin film. The characteristics, optical, and electrical properties of undoped and Mn2+-...

A stoichiometric Cu2ZnSnS4 film with the stannite structure and resistivity of 2 × 102 Ω · cm has been prepared by annealing polycrystalline quaternary films at 550°C, which are spray-deposited on glass substrates, in an argon gas flow containing H2S. Non-stoichiometric films consisting most...

Stannites are important contenders among thin-film solar cells due to their direct band gap and higher absorption coefficient. I2–II–IV–VI4 nanocrystals of Cu2ZnSnSe4 are stannite material with a near-optimum band gap of ∼1.5 eV. Semiconductor Cu2ZnSnSe4 nanorods were successfully prepared v...

This work reports the analysis of the vibrational properties of stannite–kesterite Cu2(Fe,Zn)SnS4 compounds that has been performed by Raman scattering measurements. The detailed analysis of the experimental spectra has allowed determining the frequency and symmetry assignment of the main and w...

The structural, electronic, and optical properties of wurtzite–stannite Cu2MgSi(SxSe1−x)4 alloys have been calculated based on Heyd–Scuseria–Ernzerhof (HSE) screened hybrid functional. The calculated band gap bowing parameter is 0.164 eV which may be a good reference for future research. Acco...

Here we report the application of stable stannite phase CuZn2AlS4 (CZAS) nanocrystals (NCs), prepared by using a facile hydrothermal approach, as electron acceptor and photo-active material in organic-inorganic hybrid solar cells, for the first time. The photovoltaic (PV) performance of devices ...

The multinary solid solution series of the chalcogenides kesterite–stannite and kuramite–stannite are studied by X–ray absorption fine structure spectroscopy. The oxidation state of iron is estimated from the near edge (XANES) spectra. For the kesterite–stannite series the Fe2+ state is foun...

Raman spectrum of Cu2CdSnSe4 quaternary semiconductor compounds with tetragonal stannite-type structure (space group I4¯2m), a material which has been recognized recently as a potential candidate for thermoelectric applications, has been studied. Most of the fourteen Raman lines expected for th...

The analysis of the vibrational properties of mechanochemically synthesized stannite Cu2FeSnS4 nanocrystals has been performed. X-ray diffraction (XRD) and Raman spectroscopy are techniques used to characterize the crystal structure and compositional purity of stannite Cu2FeSnS4 nanoparticles. T...

The analysis of the optical properties of mechanochemically synthesized stannite Cu2FeSnS4 nanocrystals has been performed using far-infrared spectroscopy. The Cu2FeSnS4 stannite nanocrystals were synthesized mechanochemically from elemental precursors Cu, Fe, Sn, and S. Milling time was 45, 60,...

Structural, electronic and optical properties of Cu2ZnGe(S/Se)4 semiconductor materials in their kesterite and stannite phase have been investigated using density functional theory (DFT) approach using full potential linearized augmented plane wave (FP-LAPW) method. Modified Becke-Johnson (mBJ) ...

The study of the thermoelectric performance of electrodeposited Pt nanoparticles-bismuth telluride nanocomposites (Pt/Bi2Te3) film is presented in this paper. An electrolyte solution containing nitric acid and bismuth-telluride ions was mixed with various concentrations of Pt nanoparticles. 1.0 ...