Home > Research > Publications & Outputs > Phase-Coherent Charge Transport through a Porph...

Electronic data

  • 20220426_phase-coherent_pi_ms

    Accepted author manuscript, 1.41 MB, PDF document

    Available under license: CC BY: Creative Commons Attribution 4.0 International License


Text available via DOI:

View graph of relations

Phase-Coherent Charge Transport through a Porphyrin Nanoribbon

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>19/07/2023
<mark>Journal</mark>Journal of the American Chemical Society
Issue number28
Number of pages10
Pages (from-to)15265-15274
Publication StatusPublished
Early online date7/07/23
<mark>Original language</mark>English


Since the early days of quantum mechanics, it has been known that electrons behave simultaneously as particles and waves, and now quantum electronic devices can harness this duality. When devices are shrunk to the molecular scale, it is unclear under what conditions does electron transmission remain phase-coherent, as molecules are usually treated as either scattering or redox centers, without considering the wave–particle duality of the charge carrier. Here, we demonstrate that electron transmission remains phase-coherent in molecular porphyrin nanoribbons connected to graphene electrodes. The devices act as graphene Fabry–Pérot interferometers and allow for direct probing of the transport mechanisms throughout several regimes. Through electrostatic gating, we observe electronic interference fringes in transmission that are strongly correlated to molecular conductance across multiple oxidation states. These results demonstrate a platform for the use of interferometric effects in single-molecule junctions, opening up new avenues for studying quantum coherence in molecular electronic and spintronic devices.