A new transistor with an atomically thin current-carrying channel that operates at ultralow supply voltages has been unveiled by a team of researchers in the US. The new device, which is made from a 2D semiconducting crystal and a bulk germanium substrate, can be switched on at just 0.1 V. It could be used to create extremely dense and lower-power integrated circuits, and could also form the basis of ultrasensitive sensors of biological molecules.

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