Two-dimensional semiconductors have a valley degree of freedom that could be used as platform for future optoelectronic devices. The Hall effect, caused by electrons in different valleys having opposite Berry curvatures, is important making such devices, but has only been reported with plasmonic structures or at cryogenic temperatures, limiting practical application. Here we report the observat...

A new application area using a very simple alkali metal chalcogenide, disodium diselenide (Na2Se2), has been developed. The prepared alkali metal chalcogenide (disodium diselenide, Na2Se2) acts as an anionic exchange precursor (PbS to PbS-PbSe), a Se precursor for metal selenide nanoparticles (Ag to Ag2Se), and a MCC (FeO-MCC) depending on the type of colloidal nanoparticles.

Flexoelectricity in thin films has emerged as an effective electromechanical response owing to appealing scaling law and universal existence. However, current studies show limited out-of-plane converse flexoelectric effect (CFE) of ultra-thin transition metal dichalcogenides (TMDs) when compared their conventional in-plane piezoresponse. Here, we report flexoresponse atomically TMDs such molybd...

Layered transition-metal dichalcogenides have emerged as exciting material systems with atomically thin geometries and unique electronic properties. Pressure is a powerful tool for continuously tuning their crystal and electronic structures away from the pristine states. Here, we systematically investigated the pressurized behavior of MoSe2 up to ∼ 60 GPa using multiple experimental techniques ...

The paper highlights the results of anti-friction and anti-wear tests samples lubricating media containing a layered friction modifier - molybdenum diselenide. main variable test conditions are load on samples, volume concentration in oil, preliminary storage time composition before testing. evaluation criteria mass wear intensity, coefficient. Each eight cycles was implemented tribotechnical i...

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Rechargeable Mg batteries (RMBs) are a promising large-scale energy-storage technology with low cost and high safety, but the performance is limited by inferior kinetics of Mg-intercalation cathodes. In present study, an octylamine-supporting interlayer expanded molybdenum diselenide (e-MoSe2) synthesized used as cathode for RMBs, in comparison ordinary crystalline MoSe2. The octylamine molecul...

Abstract Two-dimensional semiconductors can be used to build next-generation electronic devices with ultrascaled channel lengths. However, need integrated high-quality dielectrics—which are challenging deposit. Here we show that single-crystal strontium titanate—a high- κ perovskite oxide—can two-dimensional using van der Waals forces. Strontium titanate thin films grown on a sacrificial layer,...