131792 20260218073101.0 doi 10.1039/d3nr05122f sideral 137209 ART-2024-137209 eng (orcid)0000-0001-6189-1642 Escorihuela, Enrique Universidad de Zaragoza Large area arrays of discrete single-molecule junctions derived from host–guest complexes 2024 Access copy available to the general public Unrestricted The desire to continually reduce the lower limits of semiconductor integrated circuit (IC) fabrication methods continues to inspire interest in unimolecular electronics as a platform technology for the realization of future (opto)electronic devices. However, despite successes in developing methods for the construction and measurement of single-molecule and large-area molecular junctions, exercising control over the precise junction geometry remains a significant challenge. Here, host–guest complexes of the wire-like viologen derivative 1,1′-bis(4-(methylthio)-phenyl)-[4,4′-bipyridine]-1,1′-diium chloride ([1][Cl]2) and cucurbit[7]uril (CB[7]) have been self-assembled in a regular pattern over a gold substrate. Subsequently, ligandless gold nanoparticles (AuNPs) synthesized in situ are deposited over the host–guest array. The agreement between the conductance of individual mono-molecular junctions, appropriately chosen as a function of the AuNP diameter, within this array determined by conductive probe atomic force microscope (c-AFM) and true single-molecule measurements for a closely similar host–guest complex within a scanning tunneling microscope break-junction (STM-BJ) indicates the formation of molecular junctions derived from these host–guest complexes without deleterious intermolecular coupling effects. info:eu-repo/grantAgreement/ES/DGA/E31-23R info:eu-repo/grantAgreement/ES/MICINN/CTQ2017-84087-R info:eu-repo/grantAgreement/ES/MICINN/PID2019-105881RB-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2022-141433OB-I00 info:eu-repo/grantAgreement/ES/MICINN/RYC-2015-18471 info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131318B-I00 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.1 2024 PHYSICS, APPLIED 46 / 187 = 0.246 2024 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 53 / 147 = 0.361 2024 Q2 T2 CHEMISTRY, MULTIDISCIPLINARY 67 / 239 = 0.28 2024 Q2 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 142 / 461 = 0.308 2024 Q2 T1 1.245 2024 Nanoscience and Nanotechnology 2024 Q1 Materials Science (miscellaneous) 2024 Q1 9.9 2024 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-5380-6863 Barrio, Jesús del Universidad de Zaragoza Davidson, Ross J. Beeby, Andrew Low, Paul J. Prez-Murano, Francesc (orcid)0000-0002-4729-9578 Cea, Pilar Universidad de Zaragoza (orcid)0000-0001-9193-3874 Martin, Santiago Universidad de Zaragoza 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 16, 3 (2024), 1238-1246 Nanoscale Nanoscale 2040-3364 943843 http://zaguan.unizar.es/record/131792/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2024-12-20 1826104 http://zaguan.unizar.es/record/131792/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2024-12-20 oai:zaguan.unizar.es:131792 articulos driver 2026-02-17-20:26:00 ARTICLE