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A parity–time symmetric circuit that uses a switch-mode amplifier and current-sensing phase-delay feedback can wirelessly transfer around 10 W of power to a moving device with a nearly constant total efficiency of 92%.
Metal–semiconductor junctions formed between a transition metal ditelluride and monolayer molybdenum disulfide exhibit nearly ideal Schottky–Mott conditions.
A favourable scaling law for the magnetic state readout of CoFe/Pt nanostructure devices allows large spin Hall signals of 0.3 Ω at room temperature to be obtained, which could be useful in the development of spin-logic devices.
A three-dimensional circuit composed of eight layers of monolithically integrated memristive devices is built and used to implement complex neural networks, demonstrating accurate MNIST classification and effective edge detection in videos.
This Review Article examines the development of neural interfaces, which can provide a direct, electrical bridge between analogue human nervous systems and digital man-made devices, considering challenges and opportunities created with such technology.
A 3D printing technique that produces structures with programmable patterns of charged surface, allowing different functional materials to be deposited in pre-defined regions, can be used to create electronic devices with a single printing step.
Two-dimensional metallic WTe2 and MoTe2 layers can be combined with a semiconducting MoS2 monolayer to create metal–semiconductor junctions that are free from substantial disorder effects and Fermi-level pinning.
By embedding silver nanoparticles in the electron transport layer, solution-processed quantum-dot-based photodetectors with a high photon-to-electron conversion efficiency of 6.5% and a low turn-on voltage of 2.5 V can be created for use in infrared imaging applications.
A reconfigurable metasurface based on integrated optoelectronic pixels can be programmed by visible light to implement different electromagnetic functions.
A metal halide perovskite diode can switch between emission and detection modes, offering over 21% external quantum efficiency for light emission and a sub-picowatt limit for light detection.
A flexible microsystem that has an integrated coil to enable wireless energy transfer via inductive coupling can offer controlled locomotion using two catalytic micro-engines and controlled actuation using thermoresponsive micro-arms.
A solution-processed perovskite diode that functions as both optical transmitter and receiver can be used to build a monolithic pulse sensor and a bidirectional optical communication system.
A quantum point contact formed in the two-dimensional electron gas of a LaAlO3/SrTiO3 interface exhibits quantized conductance due to ballistic transport in a controllable number of one-dimensional conducting channels.
The electrical current-induced creation, motion, detection and deletion of skyrmions in ferrimagnetic multilayers can be used to mimic the behaviour of biological synapses, providing devices that could be used for neuromorphic computing tasks such as pattern recognition.