Academic Journal
Ballistic conductance through porphyrin nanoribbons
| العنوان: | Ballistic conductance through porphyrin nanoribbons |
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| المؤلفون: | Deng, J-R, González, MT, Zhu, H, Anderson, HL, Leary, E |
| بيانات النشر: | American Chemical Society |
| سنة النشر: | 2024 |
| المجموعة: | Oxford University Research Archive (ORA) |
| الوصف: | The search for long molecular wires that can transport charge with maximum efficiency over many nanometers has driven molecular electronics since its inception. Single-molecule conductance normally decays with length and is typically far below the theoretical limit of G0 (77.5 μS). Here, we measure the conductances of a family of edge-fused porphyrin ribbons (lengths 1–7 nm) that display remarkable behavior. The low-bias conductance is high across the whole series. Charging the molecules in situ results in a dramatic realignment of the frontier orbitals, increasing the conductance to 1 G0 (corresponding to a current of 20 μA). This behavior is most pronounced in the longer molecules due to their smaller HOMO–LUMO gaps. The conductance-voltage traces frequently exhibit peaks at zero bias, showing that a molecular energy level is in resonance with the Fermi level. This work lays the foundations for long, perfectly transmissive, molecular wires with technological potential. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://doi.org/10.1021/jacs.3c07734 |
| DOI: | 10.1021/jacs.3c07734 |
| الاتاحة: | https://doi.org/10.1021/jacs.3c07734 https://ora.ox.ac.uk/objects/uuid:4566b6ee-fe31-47fb-bad3-d59003366477 |
| Rights: | info:eu-repo/semantics/openAccess ; CC Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) |
| رقم الانضمام: | edsbas.E531A733 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/jacs.3c07734 |
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