Print Email Facebook Twitter Robust organic radical molecular junctions using acetylene terminated groups for c-au bond formation Title Robust organic radical molecular junctions using acetylene terminated groups for c-au bond formation Author Bejarano, Francesc (Universitat Autònoma de Barcelona) Olavarria Contreras, I.J. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) Droghetti, Andrea (University of the Basque Country) Rungger, Ivan (National Physical Laboratory) Rudnev, Alexander (University of Bern; Russian Academy of Sciences A. N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS) Gutiérrez, Diego (Universitat Autònoma de Barcelona) Mas-Torrent, Marta (Universitat Autònoma de Barcelona) Veciana, Jaume (Universitat Autònoma de Barcelona) van der Zant, H.S.J. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) Burzuri Linares, E. (TU Delft QN/Afdelingsbureau; Instituto Madrilenõ de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia); Kavli institute of nanoscience Delft) Date 2018-02-07 Abstract Organic paramagnetic and electroactive molecules are attracting interest as core components of molecular electronic and spintronic devices. Currently, further progress is hindered by the modest stability and reproducibility of the molecule/electrode contact. We report the synthesis of a persistent organic radical bearing one and two terminal alkyne groups to form Au-C σ bonds. The formation and stability of self-assembled monolayers and the electron transport through single-molecule junctions at room temperature have been studied. The combined analysis of both systems demonstrates that this linker forms a robust covalent bond with gold and a better-defined contact when compared to traditional sulfur-based linkers. Density functional theory and quantum transport calculations support the experimental observation highlighting a reduced variability of conductance values for the C-Au based junction. Our findings advance the quest for robustness and reproducibility of devices based on electroactive molecules. To reference this document use: http://resolver.tudelft.nl/uuid:38c7b145-47d7-4315-af1f-002725b27f42 DOI https://doi.org/10.1021/jacs.7b10019 Embargo date 2018-07-07 ISSN 0002-7863 Source Journal of the American Chemical Society, 140 (5), 1691-1696 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 Francesc Bejarano, I.J. Olavarria Contreras, Andrea Droghetti, Ivan Rungger, Alexander Rudnev, Diego Gutiérrez, Marta Mas-Torrent, Jaume Veciana, H.S.J. van der Zant, E. Burzuri Linares, More Authors Files PDF jacs.7b10019taverne.pdf 2.22 MB Close viewer /islandora/object/uuid:38c7b145-47d7-4315-af1f-002725b27f42/datastream/OBJ/view