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An acoustic resonator that uses a three-dimensional silicon fin and an atomic-layered hafnia-zirconia ferroelectric transducer can be integrated into chip-scale filter arrays to make adaptive switch-free spectral processors for wireless communication.
A thin elastic conductive nanocomposite that is formed by cryogenically transferring laser-induced graphene to a hydrogel film can be used to create multifunctional sensors for on-skin monitoring and cardiac patches for in vivo detection.
An artificial intelligence hardware approach that uses the adaptive reservoir computation of biological neural networks in a brain organoid can perform tasks such as speech recognition and nonlinear equation prediction.
A transfer technique that embeds a van der Waals interface of interest in a high-adhesion matrix can decouple the properties of the functional interface from the forces required for its fabrication, providing single-step material-to-device integration.
Processes to recapture and reuse organic electronic materials—including conductors, semiconductors and dielectrics—using non-toxic solvents allow flexible, wearable electronic devices to be recycled sustainably.
The mechanical properties of sheet-like devices can be transformed via thermal modulation from an elastic state suitable for smoothing out wrinkles formed during crumpling to a plastic state suitable for free-standing operation.
A spin–orbit torque efficiency of around 2.7 can be achieved in heterostructures based on the bismuthate BaPb1−xBixO3, which can be used to drive magnetization switching at current densities of 4 × 105 A cm−2.
Membranes made of metal-coated silicon nitride can be used to assemble van der Waals heterostructures without a polymer support layer, thus improving cleanliness and allowing assembly at more extreme temperature and vacuum conditions.
Through layer-by-layer mechanical peeling, the channel region of a multilayer black phosphorus transistor can be reduced to a monolayer thickness without degrading its lattice and while retaining a multilayer contact region.
A haptic interface that uses thermal, mechanical and electrotactile modes of stimulation to target different receptors in the skin can provide users with diverse haptic sensations, reproducing the tactile information of fine roughness, macro roughness, slipperiness, force and temperature.
Rhombohedral-stacked molybdenum disulfide with sliding ferroelectric behaviour can be used to create atomically thin ferroelectric transistors for computing-in-memory device applications.
Memristors based on electric-field-induced phase transitions between a semiconducting and conductive phase of molybdenum ditelluride can be improved by using stressed metal contacts to strain the material closer to the phase switching point.
An ultrasound patch that is based on multiple phased arrays of rare-earth-doped ceramic piezoelectric transducers on a stretchable substrate can be conformably attached to the surface of the body for a large field of view and operator-independent imaging of deep organs.
An in-memory computing chip for vector–matrix multiplication and discrete signal processing applications can be fabricated using floating-gate field-effect transistors based on monolayer molybdenum disulfide.
A spiking neural network that is based on event-driven vision sensors can be created using two parallel photodiodes of opposite polarities that output programmable spike signal trains in response to changes in light intensity.
Ising- and Potts-model-based simulated annealing can be performed with photon-detector-based neuron circuits and used to solve a range of optimization problems.
An effective-gate-voltage-programmed graded-doping method can be used to reconfigure a single-gate molybdenum ditelluride device to different states, including a polarity-switchable diode, memory, Boolean logic and artificial synapse.
A model that predicts the force behaviour for solid/liquid-dielectric multilayer stacks independent of actuator design, and solely based on the material properties, can be used to develop actuators that provide a steady force output under constant-voltage operation.
Five-stage ring oscillators that operate at frequencies of up to 2.65 GHz can be created using monolayer molybdenum disulfide field-effect transistors developed with a design-technology co-optimization process.
A ternary metallic alloy VS2xSe2(1–x) that has a tunable work function can be grown using chemical vapour deposition and used as contacts for two-dimensional semiconductors.