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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.
Electrocaloric effects are large in a limited set of materials that display hysteretic first-order phase transitions. Here epitaxial SrTiO3 thin films are strain engineered to achieve anhysteretic second-order phase transitions, with electrocaloric effects enhanced by one order of magnitude over bulk.
Conventional iontronic pressure sensors suffer from signal drift and inaccuracy owing to creep of soft materials and ion leakage. Here the authors report a leakage-free and creep-free polyelectrolyte-elastomer-based iontronic sensor that achieves a drift rate two to three orders of magnitude lower than those of conventional iontronic sensors.
Single-crystal black phosphorus nanoribbons have been grown through chemical vapour transport, using black phosphorus nanoparticles as seeds. The nanoribbons orient exclusively along the zigzag direction and have good semiconductor properties that render them suitable for use as channel material in field-effect transistors.
Strong bulk van der Waals materials are fabricated by the compressive moulding of two-dimensional nanosheets near room temperature through water-mediated densification, providing an energy-efficient way for synthesizing various van der Waals materials and a potential for tailoring compositions.
Limited datasets hinder the accurate prediction of DNA origami structures. A data-driven and physics-informed approach for model training is presented using a graph neural network to facilitate the rapid virtual prototyping of DNA-based nanostructures.
Suppressed Dexter transfer is needed to achieve efficient and stable hyperfluorescence, but complex matrices must be involved. A molecular design strategy has been proposed where Dexter transfer can be substantially reduced by an encapsulated terminal emitter, leading to ‘matrix-free’ hyperfluorescence.
Restricting the directional segregation of mobile ions via strategic local ion confinement allows remarkable thermoelectric performance with better stability.
Cu2Se is of interest for thermoelectrics as it is environmentally sustainable and has a high figure of merit ZT; however, copper ion migration impacts device stability. Here a co-doping strategy that combines steric and electrostatic effects is shown to improve device stability as well as improving ZT to 3.
An intelligent DNA nanodevice, composed of DNA origami nanosheets and a thrombin-responsive DNA fastener, accurately delivers the appropriate dose of tissue plasminogen activator following activation by distinct thrombosis events.
Implants made from patient-derived lyophilized lymph nodes loaded with chimeric antigen receptor T cells improve T cell delivery and inhibit tumour recurrence.
The atomic reconstruction and stacking arrangement in twisted trilayer graphene with a range of varying twist angles are elucidated by four-dimensional scanning transmission electron microscopy, revealing the hierarchical moiré of moiré superstructures that govern the structural symmetry at different length scales.