Photo- and charge-carrier-induced ion migration is a major challenge when utilizing metal halide perovskite semiconductors for optoelectronic applications. For mixed iodide/bromide perovskites, the compositional instability due to light- or electrical bias induced phase-segregation restricts exploitation of entire bandgap range. Previous experimental theoretical work suggests that excited state...

Abstract The miniaturization of electronic devices and the consequent decrease in distance between conductive lines have increased risk short circuit failure due to electrochemical migration (ECM). presence ionic contaminants affects ECM process. This work systematically investigates tin (Sn) bromide ions (Br ? ) range 10 ?6 M 1.0 M. Water drop test (WDT) was conducted two-probe semiconductor c...

Both high safety and low cost give aqueous rechargeable sodium-ion batteries (ARSB) the opportunity for application in stationary energy storage, but the low operating potential of the existing cathode materials limits its energy density. Here, we introduce a hydrothermal-assisted strategy to prepare the Na7V4(P2O7)4(PO4)/C nanorod and employ it as a novel high-property cathode material for ARS...

Ozone process has been widely used for drinking water treatment recently. In the oxidation process, bromate is formed by three pathways, i.e., the direct pathway, the direct-indirect pathway and the indirect-direct pathway. This study developed a method to calculate the percentage of these three pathways for bromate formation during O3 process and O3/H2O2 process. Two kinds of water, distilled ...

Bioactive glass nanoparticles (BGNPs) can be internalized by cells, allowing the intracellular release of dissolution products with therapeutic benefit. Different ions incorporated into network that promote angiogenesis via simulation hypoxia conditions and consequent activation pro-angiogenic genes. Here, novel monodispersed spherical dense BGNPs were obtained a modified Stober method SiO2–CaO...

The present study investigated NO3- and Br- contamination in groundwater of Arak aquifer, Markazi province, Iran. Correlation and factor analyzes were used to detecti nterrelations and sources of NO3- and Br- ion concentration and other physicochemical variables. No correlation was observed between NO3- and otherscontents, but a positive correlation was identified between Br-and other majorvari...