We present a comprehensive device model for Cu(In,Ga)Se2 (CIGSe) thin-film solar cells based on numerical SCAPS-1D simulations. The reproduces the experimentally determined current-voltage and capacitance-voltage characteristics of Rb-free reference device, sample that underwent an RbF-treatment, CIGSe/RbInSe2-stack. According to this model, in agreement with experimental findings, main consequ...

Porphyry-type deposits are the major sources of copper and molybdenum, flotation has been adopted to recover them separately. The conventional reagents used for depressing minerals, such as NaHS, Na2S, Nokes reagent, have potential emit toxic H2S gas when pulp pH was not properly controlled. Thus, in this study applicability microencapsulation (ME) using ferrous phosphate ions an alternative pr...

Cyclic voltammetry and potentiodynamic polarization analyses were utilized to investigate the mechanism kinetics of glycine leaching reactions for chalcopyrite. The effects pH (9–12), temperature (30–90 °C) concentration (0–2 mol/L) on corrosion current density, potential cyclic voltammograms investigated using chalcopyrite concentrate–carbon paste electrodes. Results showed that an increase in...

Abstract Chalcopyrite solar cells will have to play an important role mitigate the climate crisis, because of their particularly low carbon emissions. Doping in these semiconductors is due native defects and intentional alkali impurities. The recent progress efficiency has been made possible by post-deposition treatments with heavy alkalis. Tail states band gap distribution are main limitations...

The studied copper ore deposit is located in Miedzianka Mountain (Świętokrzyskie Mountains, central Poland). This was exploited from the 13th century to 1950s; therefore numerous historical adits are currently present. One of these Teresa adit (established 1805), consisting underground mining corridors and natural cave developed Upper Devonian limestones, partially transformed by works. Samples...

This review describes the historical development and current state of metals leaching and sulfide mineral biooxidation by the minerals industries. During the past 20 years commercial processes employing microorganisms for mineral recovery have progressed from rather uncontrolled copper dump leaching to mineral oxidation and leaching in designed bioheaps for oxidation of refractory gold ores and...

We present a study of order-disorder phenomena in the series of tetrahedral ordered vacancy compounds Zn1-xMnxGa2Se4 by means of time-of-flight neutron diffraction at high temperature together with dc magnetic susceptibility, Raman spectroscopy, differential thermal analysis and optical absorption experiments. Samples of nominal composition x = 0, 0.24, 0.5, 0.77 and 1 have been studied. An ord...

Abstract Chalcopyrite II-IV-V 2 semiconductors are promising materials in nonlinear optical, optoelectronic, and photovoltaic applications. In this work, pressure-tailored optical properties as well pressure-driven emergent superconductivity chalcopyrite ZnSiP reported via photoluminescence (PL) spectroscopy electrical transport experiments. During compression, the PL peak energy exhibits a pla...