Conductance Oscillations in a Graphene/Nanocluster Hybrid Material: Toward Large-Area Single-Electron Devices.

Godel, Florian; Mouafo, Louis Donald Notemgnou; Froehlicher, Guillaume; Doudin, Bernard; Berciaud, Stéphane; Henry, Yves; Dayen, Jean-François; Halley, David · Adv Mater · 2017

basic_science · Level V

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Abstract

Large assemblies of self-organized aluminum nanoclusters embedded in an oxide layer are formed on graphene templates and used to build tunnel-junction devices. Unexpectedly, single-electron-transport behavior with well-defined Coulomb oscillations is observed for a record junction area of up to 100 µm<sup>2</sup> containing millions of metal islands. Such graphene-metal nanocluster hybrid materials offer new prospects for single-electron electronics.