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The authors report subatomic precision in measuring the displacement of a nanowire. Such precision is achieved by employing deep-learning enabled analysis of single-shot scattering of topologically structured superoscillatory illumination.
Membranes formed from porous adsorbents can improve the economics of industrially difficult separations but require support materials that reduce gas permeance. Here an amorphous glassy foam membrane without a support is formed from ZIF-62 that shows high selectivity and permeance for CH4/N2 separations.
MOF membranes can present exceptional molecular-sieving properties, but lattice defects arising from incomplete cluster coordination can hinder this. Here a strategy for the elimination of lattice defects by increasing the ligand to secondary building unit ratio is proposed and demonstrated.
Activating CO2 to form methane is a potential strategy for energy decarbonization, but to activate CO2 typically requires high temperatures. Here a ruthenium oxycarbonate is presented that forms by carbon interstitial doping of RuO2, and this catalyst enables CO2 activation at 50 °C.
Employing terahertz nanoscopy, we image highly confined, in-plane anisotropic acoustic terahertz plasmon polaritons in monoclinic Ag2Te platelets placed above a Au layer, verifying a linear dispersion and elliptical isofrequency contour in momentum space.
Using direct laser writing with a nanosecond pulsed laser operating at above-bandgap photon energies, we demonstrate the selective formation of spin defects in photonic crystal cavities in 4H-silicon carbide and their in situ characterization.
Understanding lithium dynamics in solid-state electrolytes used for Li-ion batteries can be challenging. Using nonlinear extreme-ultraviolet spectroscopies, a direct spectral signature of surface lithium ions showing a distinct blueshift relative to the bulk absorption spectra is observed in a prototypical solid-state electrolyte.
Surface strain can be used in gas phase catalysis and electrocatalysis to control the binding energies of adsorbates on active sites, but in situ or operando strain measurements can be challenging. Coherent diffraction now allows strain inside individual Pt nanoparticles to be mapped and quantified under electrochemical control.
We report compact spin-valley-locked perovskite emitting metasurfaces where spin-dependent geometric phases are imparted into bound states in the continuum via Brillouin zone folding, simultaneously enabling chiral purity, directionality and large emission angles.
Understanding charge-compensating interactions and ionic dynamics in organic mixed conductors can be challenging. Operando NMR spectroscopy is now used to quantify cation and water movement during doping/dedoping in mixed conductor films.
Screw dislocations in α-iron move more easily in the presence of hydrogen, as evidenced by real-time imaging using quantitative transmission electron microscopy.
The authors demonstrate electrical on/off switching of interlayer interactions in tungsten diselenide/molybdenum disulfide heterobilayers, the phase diagram of which contains layer-dependent correlated regions that reveal the role of strong correlations in interlayer exciton dynamics.
Electronic compressibility measurements of twisted double-bilayer WSe2 reveal correlated insulators with spin-polaron charged excitations, as well as close competition between moiré bands at Γ and K valleys.
Alternative solid electrolytes with enhanced thermal and chemical stability are key for advancing lithium batteries. A soft solid electrolyte with improved stability and ionic conductivity, overcoming several limitations of conventional materials, is now reported.
Liquid water reforming of methanol is a promising method for on-demand hydrogen production. An atomic-level catalyst design strategy, using synergy between single atoms and nanodots, is now shown to demonstrate a high quantum efficiency for hydrogen production.
This work shows that by designing appropriate alloying elements in a body-centred-cubic high-entropy alloy, local chemical order and lattice distortion can be tuned, which influences the evolution of planar-slip bands, realizing pure-metal-like tensile ductility at gigapascal yield strength.
Soft porous crystals combine high crystallinity with structural transformability, potentially enabling applications. Here, an atropisomeric covalent organic framework is reported, which demonstrates different structural transformations upon exposure to different gases.
We synthesized stretchable electroluminescent polymers capable of reaching a near-unity theoretical quantum yield through thermally activated delayed fluorescence. Their polymers show 125% stretchability with 10% external quantum efficiency and demonstrate a fully stretchable organic light-emitting diode.
Employing an oxidation-activated charge transfer strategy to oxidize transition-metal dichalcogenides into transition-metal oxides, the authors imprint plasmonic cavities with laterally abrupt doping profiles and nanoscale precision demonstrating plasmonic whispering-gallery resonators.