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Combining fluorescence correlation spectroscopy and ultrafast spectroscopy, the sample-averaged dynamics of defects are studied with single-particle sensitivity in two-dimensional hexagonal boron nitride heterogeneous emitters.
High-phase-purity and stable 1T′-transition metal dichalcogenide monolayers are grown on 4H-Au nanowires by a facile and rapid wet-chemical method, enabling ultrasensitive surface-enhanced Raman scattering detection.
Ferroelectric phase stability is a pivotal challenge for fluorite-structure ferroelectrics. Using electron microscopy, a ferroelastically protected reversible polar-to-non-polar phase transition in ZrO2 is observed and the critical strain state to break the reversibility is measured.
The scientific community has become more aware of issues surrounding reproducibility. We should remain cognizant that as we develop better understanding we can revise our knowledge of a problem and scientific findings that are considered valid today might not be in the future.
Polaritonic losses, a root impediment to the many bounties of nanophotonics, may be evaded by resorting to the mathematics of synthetic frequencies offering ‘virtual’ gain.
Highly efficient matrix-free hyperfluorescent organic light-emitting diodes are constructed with remarkably supressed Dexter transfer utilizing narrowband blue emitters encapsulated with hopped alkyl chains.
Pentagonal polyhedral oligomeric silsesquioxane (POSS)-based giant atoms self-assemble into Frank–Kasper phases that have not been previously observed in soft-matter systems.
Better control over the quality of materials dissipates doubts about charge order in infinite-layer nickelates and indicates that a previously observed superstructure is probably a spurious effect related to other crystalline phases. This finding strengthens the similarities between nickelates and cuprates.
A light-induced polar electronic state is generated in Cr2O3; the symmetry reduction occurs on an ultrafast timescale, ruling out contributions from the lattice or spins.
Non-layered transition metal carbides (TMCs) and layered transition metal dichalcogenides (TMDs) can form various heterostructure configurations through chemical conversion. This Review highlights the progress in the fabrication and control of TMC/TMD heterostructures and the exotic properties arising from these interfaces.
Molecular materials for computing progress intensively but the performance and reliability still lag behind. Here the authors assess the current state of computing with molecular-based materials and describe two issues as the basis of a new computing technology: continued exploration of molecular electronic properties and process development for on-chip integration.
Noble gas atoms sandwiched in bilayer graphene are directly visualized with scanning transmission electron microscopy, revealing solid and liquid-like dynamics of two-dimensional cluster structures at room temperature under encapsulation.
Lack of local phase patterning in liquid crystal elastomers has hindered their broad implementation. The authors report a laser-induced dynamic crosslinking approach with allyl sulfide groups to achieve reconfigurable high-resolution patterning of multiple liquid crystalline phases in a single film.
Electrocaloric effects have not hitherto been experimentally studied at a phase transition created by strain. It is now shown that the continuous transition created by epitaxial strain in strontium titanate films greatly enhances electrocaloric effects over a wide range of temperatures, including room temperature.
Pre-intercalation with alkali-metal ions is attractive for accessing higher reversible capacity and improved rate performance in Li-ion batteries. Topochemical single-crystal transformations in a tunnel-structured positive electrode are used to clarify the effect of pre-intercalation in modifying the host lattice and altering diffusion pathways.