Picture 1 (IMAGE)

Singapore University of Technology and Design

Picture 1

Caption

An atomically thin bismuth is semiconducting in its monolayer form but can be transformed into a metal (or semimetal) when driven by an external pressure. A trilayer heterostructure composed of such pressure-driven metallic Bismuth and MoS2 can be harnessed to form a layer-selective Ohmic contact, in which electrical current can be switched to flow between two different MoS2 layers via an external electric field on demand.

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SUTD

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