Redox‐Addressable Single‐Molecule Junctions Incorporating a Persistent Organic Radical**


Naghibi, Saman ORCID: 0000-0002-0799-9967, Sangtarash, Sara ORCID: 0000-0003-1152-5673, Kumar, Varshini J ORCID: 0000-0002-8472-2961, Wu, Jian‐Zhong, Judd, Martyna M ORCID: 0000-0003-2867-0922, Qiao, Xiaohang ORCID: 0000-0001-7801-4603, Gorenskaia, Elena ORCID: 0000-0002-2415-2645, Higgins, Simon J ORCID: 0000-0003-3518-9061, Cox, Nicholas ORCID: 0000-0002-7815-6115, Nichols, Richard J ORCID: 0000-0002-1446-8275 et al (show 3 more authors) (2022) Redox‐Addressable Single‐Molecule Junctions Incorporating a Persistent Organic Radical**. Angewandte Chemie, 134 (23).

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Abstract

<jats:title>Abstract</jats:title><jats:p>Integrating radical (open‐shell) species into non‐cryogenic nanodevices is key to unlocking the potential of molecular electronics. While many efforts have been devoted to this issue, in the absence of a chemical/electrochemical potential the open‐shell character is generally lost in contact with the metallic electrodes. Herein, single‐molecule devices incorporating a 6‐oxo‐verdazyl persistent radical have been fabricated using break‐junction techniques. The open‐shell character is retained at room temperature, and electrochemical gating permits in situ reduction to a closed‐shell anionic state in a single‐molecule transistor configuration. Furthermore, electronically driven rectification arises from bias‐dependent alignment of the open‐shell resonances. The integration of radical character, transistor‐like switching, and rectification in a single molecular component paves the way to further studies of the electronic, magnetic, and thermoelectric properties of open‐shell species.</jats:p>

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 10 May 2022 14:03
Last Modified: 07 Sep 2023 20:44
DOI: 10.1002/ange.202116985
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3154561
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