News & Views

Ion trapping in crystalline domains of electrochemical transistors can be used to create a device capable of both volatile and non-volatile operation.

An elastic conductive ink — which is made of conductive fillers suspended in an emulsified elastomer matrix — can be used to print three-dimensional elastic conductors.

By selectively engineering the surface roughness of micro-light-emitting-diode chips, and thus the strength of the van der Waals forces that bond them to a substrate, large-area displays can be created via a fluidic-assisted transfer method.

Multilayer hexagonal boron nitride can be synthesized over large areas and used to enhance mobility in graphene heterostructures, illustrating the potential of the material as an insulator in commercial two-dimensional electronics.

An acoustoelectric amplifier based on a three-layer heterostructure design could be used to create all-acoustic radiofrequency microsystems.

An embedded 3D printing technique — which uses an alginate–polyacrylamide hydrogel supporting matrix and a conductive silver–hydrogel ink — can be used to fabricate hydrogel electronic devices containing various different embedded circuits.

Two-dimensional semiconductors can be used as a channel material in gate-all-around nanosheet field-effect transistors.

By controlling ion-dynamic capacitance, electrolyte-gated transistors can be switched between different operating modes, providing flexible neural network implementations.

A compact and energy-efficient magnetoresistive random-access memory (MRAM) technology could help lower the power consumption of data storage and management.

High-electron-mobility transistors with a diamond coating on their top and side surfaces can effectively dissipate heat in high-power electronics applications.

A stretchable and conductive micrometre-thick elastic conductor, which has a controlled morphology of microcracks, can be used in on-skin and implantable sensor applications.

A reconfigurable device based on two-dimensional materials can function as both a transistor and a memory.

A flexible sensor interface integrated into different commercial face masks can be used to measure breathing patterns, skin temperature, physical activity and the fit of the mask itself.

Artificial synapses made of indium selenide can exhibit tunable temporal dynamics, which can be used to achieve multisensory fusion and multiple-timescale feature extraction in reservoir computing.

A hybrid superconducting optoelectronic circuit could be used to develop spiking neuromorphic networks that operate at the single-quantum level.