Room-temperature gating of molecular junctions using few-layer graphene nanogap electrodes.

Prins, Ferry; Barreiro, Amelia; Ruitenberg, Justus W; Seldenthuis, Johannes S; Aliaga-Alcalde, Núria; Vandersypen, Lieven M K; van der Zant, Herre S J · Nano Lett · 2011

basic_science · Level V

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Abstract

We report on a method to fabricate and measure gateable molecular junctions that are stable at room temperature. The devices are made by depositing molecules inside a few-layer graphene nanogap, formed by feedback controlled electroburning. The gaps have separations on the order of 1-2 nm as estimated from a Simmons model for tunneling. The molecular junctions display gateable I-V-characteristics at room temperature.

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