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2D organic–inorganic hybrid lead halide perovskite films are fascinatingoptoelectronic materials for white-light emission and lasing applications.Here, it is demonstrated that nano-meter-thick films of perovskites can beformed at room temperature using Langmuir–Schaefer (LS) depositiontechnique. In situ X-ray measurements reveal a self-assembly process of the2D perovskite formation at the air–water interface. [...]

Al-alloys incorporating Mn, Cr and Zr, tailored forpowder bed fusion-laser beam processes with solubilitiesthree times equilibrium have recently beendeveloped that yield a high strength. Mn andCr-enriched precipitates that form during printingand heat treatment influence the material’s mechanicalproperties hence making it important to understandtheir kinetics. [...]

We have used in situ X-ray photoelectron spectroscopy to obtain information about the chemical state of a Fe single crystal catalyst upon addition of CO2 in the syngas feed duringFischer−Tropsch synthesis (FTS) between 85 and 550 mbar. We found that at certain temperatures, the ternary mixture of CO, CO2, and H2 yields a chemical state which is resemblant of neither the CO hydrogenation nor the CO2 hydrogenation reaction mixtures in isolation. [...]

The response of metal nanostructures to optical excitation leads to localized surface plasmon (LSP) generation with nanoscale field confinement driving applications in, for example,quantum optics and nanophotonics. Field sampling in the terahertz domain has had a tremendous impact on the ability to trace such collective excitations. [...]

One hindrance in transparent electronics is the lack of high-performancep-type transparent conductors (TCs). The state-of-the-art p-type TC, CuI, has aconductivity two orders of magnitude lower than n-type TCs like ITO. [...]

Vinylene-linked two-dimensional polymers (V-2DPs) and their layer-stacked covalent organic frameworks (V-2D COFs) featuring high in-plane π-conjugation and robust frameworks have emerged as promising candidates for energy-related applications. However, current synthetic approaches are restricted to producing V-2D COF powders that lack processability, impeding their integration into devices, particularly within membrane technologies reliant upon thin films. [...]