Rapid synthesis of long calcium copper titanate (CCTO) nanorods was carried out by sequential annealing. CCTO thin films have been deposited on p-Si substrate by RF sputtering technique and afterwards, the samples were thermally treated using a preheated furnace by varying the annealing temperat...

Copper containing bismuth titanates with pyrochlore type structure were obtained by ceramic procedure over a wide range of compositions. The results of measurement of pycnometric density of the pyrochlores and of X-ray powder diffraction structure refinement point to the preference for copper at...

Layered cesium copper titanate as well as the unmodified cesium titanate Cs0.68Ti1.83□0.17O4 (□: vacancy) were synthesized by a solution-based approach. The insertion of small amounts of copper into the vacancies of Cs0.68Ti1.83□0.17O4 led to a significant red shift of the band gap energy fro...

Titanate nanotubes containing copper ions are interesting materials that exhibit efficient activity in the selective reduction of nitrogen monoxide and/or in the degradation of dyes. However, research seems to be less concerned about the interaction of these materials with various gas molecules....

Zinc stannate and composite zinc stannate/zinc oxide particles were synthesized by a precipitation method in aqueous media at room temperature. As synthesized particles were characterized by SEM, TEM and XRD. Photocatalytic degradation of 50 ppm phenol in water in the presence of as synthesized ...

Copper tin oxide, CuSnO3 (CSO), is an amorphous oxide semiconductor with a band-gap of 2.0–2.5 eV, and it is an attractive material for diverse applications such as transparent conducting oxides, transistors, and optoelectronic devices. In this study, we fabricated CSO thin films on fluorine-do...

The fabrication of p-n heterojunction diodes using semiconducting metal-oxides obtained from a solution-based method was investigated. Initially, n-type transparent cadmium stannate (Cd2SnO4) conducting films were deposited by the dip-coating method on glass substrates. The films were sintered i...

We report crystal growth of several rare-earth stannates RE2Sn2O7 (RE=Pr, Tb, Ho, Dy, Yb and Lu) using the flux technique. Different combinations of flux were tried, and a Na2B4O7-NaF (1.2:1) mixture was found to be suitable for crystal growth. X-ray diffraction and thermal characterisation data...

Experimental spectra for copper gallium (indium) ternary selenides (tellurides) crystals, measured in the 50–500 cm−1 frequency range, revealed four infrared-active modes. Spectral dependencies of refractive index and absorption coefficient were computed from reflectivity experiments. The frequ...

We report a study of copper indium gallium selenide (CIGS) thin film growth in the annealing process at temperature range from 120 °C to 600 °C. Thin films were prepared by sputtering metal precursors and subsequent selenization process. Surface morphologies of thin films were observed by usin...

Thin-film photovoltaic research based on ternary or quaternary absorber materials has mainly concentrated on copper (indium/gallium) diselenide, CuInxGa1-xSe2 (CIGS). This material has demonstrated exceptional energy conversion efficiencies. By altering the In/Ga ratio the band gap can be varied...

Conventional p-CuInSe2 absorbers for solar cells have been homogenously synthesized using multi-step process despite a narrow crystal phase region in the phase diagram and the existence of various secondary phases. In contrast, here we propose artificially-designed heterophasic blended copper in...

Copper selenide and indium telluride thin films were prepared by a vacuum evaporation technique. The as-deposited films were annealed in a vacuum at different temperatures and the influence on composition, structure and optical properties of copper selenide and indium telluride films was investi...

Copper indium sulpho selenide films of different composition were deposited by the pulse plating technique at 50% duty cycle (15 s ON and 15 s OFF). X-ray diffraction studies indicated the formation of single phase chalcopyrite copper indium sulpho selenide films. Transmission Electron Microscop...

Selenium nanoparticles with diameters of 100–400 nm are prepared via hydrazine-driven reduction of selenious acid. The as-prepared amorphous, red selenium (a-Se) particles were neither a stable phase nor were they colloidally stable. Due to phase transition to crystalline (trigonal), grey selen...

The Cu2Se–In2Se3 system comprises several copper indium selenide (CIS) compounds with solar-matched bandgaps along with the optimum properties of the CuInSe2 compound. This work investigates electrochemical growth of CIS films under various conditions, initially identified with cyclic voltammet...

Thin-film technologies have been part of the rapidly-expanding solar photovoltaics (PV) market for many years, led by cadmium-telluride (CdTe) and copper‑indium‑gallium-selenide (CIGS). However, their environmental impacts remain largely unknown, particularly considering state-of-the-art CIGS ma...

The aim of this study was to investigate the properties of concrete containing various quantities of copper indium selenide (CIS) solar module waste by replacing a certain part (up to 40%) of sand. The obtained results have shown that an increase in the content of solar module waste resulted in ...

Tributhyl phosphate (TBP) decomposition in supercritical water oxidation (SCWO) was performed with and without catalyst, at different temperatures ranging from 370 to 480 °C, and different reaction times. Ag2O, CuO, Fe2O3, MgO, and ZnO synthesized by supercritical water were examined in TBP dec...

Cobalt iron oxide (CoFe2O4) nanoparticles (CIO NPs) have been one of the most widely explored magnetic NPs because of their excellent chemical stability, mechanical hardness and heat generating potential. However, there is limited information concerning the interaction of CIO NPs with biological...