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Tunable Dot Platform for Controlling Electron Flow in Graphene

Power, Stephen orcid logoORCID: 0000-0003-4566-628X and Ildarabadi, Fereshte (2025) Tunable Dot Platform for Controlling Electron Flow in Graphene. ACS Applied Electronic Materials . ISSN 2637-6113

Abstract
We introduce an innovative graphene-based architecture to control electronic current flows. The tunable dot platform (TDP) consists of an array of gated dots, with independently adjustable potentials, embedded in graphene. Inspired by Mie theory, and leveraging multiscattering effects, we demonstrate that tailored current behavior can be achieved due to the variety of possible dot configurations. Optimization is performed using differential evolution, which identifies configurations that maximize specific objectives, such as directing or splitting an electron beam by tuning the angular dependence of scattering. Our results demonstrate the potential of the TDP to provide precise control over induced current flows in graphene, making it a promising component for next-generation electronic and electron optic devices.
Metadata
Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:Quantum Dots, Electron Scattering, Optimization, Differential Evolution, Graphene, ElectronOptics
Subjects:Physical Sciences > Nanotechnology
Physical Sciences > Physics
DCU Faculties and Centres:UNSPECIFIED
Publisher:American Chemical Society
Official URL:https://pubs.acs.org/doi/full/10.1021/acsaelm.5c01...
Copyright Information:Authors
Funders:Research Ireland
ID Code:31933
Deposited On:08 Dec 2025 15:23 by Stephen Power . Last Modified 08 Dec 2025 15:23
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