108515 20230519145426.0 doi 10.1002/admi.202100876 sideral 124816 ART-2021-124816 eng Martín-Barreiro, Alba (orcid)0000-0001-6482-1121 Uncapped gold nanoparticles for the metallization of organic monolayers 2021 Access copy available to the general public Unrestricted Deposition of the top-contact electrode to create large-area electrode | monolayer | electrode junctions represents a contemporary challenge to the integration of molecular electronic phenomena into device structures. Here, a top contact electrode is formed on top of an organic monolayer over a large area (cm2) by two simple, sequential self-assembly steps. Initial self-assembly of 4,4′-(1,4-phenylenebis(ethyne-2,1-diyl))dianiline onto gold-on-glass substrates gives high-quality monolayers. The exposed amine functionality is subsequently used to anchor uncapped gold nanoparticles deposited in a second self-assembly step. These uncapped gold nanoparticles are prepared by thermolysis of lipoic acid stabilized gold nanoclusters and contain gold oxide (≈9%) that provides stability in the absence of an organic capping ligand. This two-step procedure results in full coverage of the monolayer by the densely packed gold nanoparticles, which spontaneously condense to give a semi-continuous film. The electrical properties of these junctions are determined from I–V curves, revealing uniform electrical response and absence of metallic short-circuits or evidence of damage to the underlying molecular monolayer. These promising electrical characteristics suggest that the deposition of uncapped gold nanoparticles on suitably functionalized molecular monolayers provides a path for the fabrication of molecular electronic devices using simple methodologies. info:eu-repo/grantAgreement/ES/DGA/E25-17R info:eu-repo/grantAgreement/ES/DGA/E31-20R info:eu-repo/grantAgreement/ES/DGA/E47-17R info:eu-repo/grantAgreement/EC/FP7/607602/EU/Hierarchical Self Assembly of Polymeric Soft Systems/SASSYPOL info:eu-repo/grantAgreement/ES/MCIU-FEDER/PGC2018-097583-B-I00 info:eu-repo/grantAgreement/ES/MCIU/PID2019-105408GB-I00 info:eu-repo/grantAgreement/ES/MCIU/PID2019-105881RB-I00 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.389 2021 MATERIALS SCIENCE, MULTIDISCIPLINARY 95 / 345 = 0.275 2021 Q2 T1 CHEMISTRY, MULTIDISCIPLINARY 48 / 180 = 0.267 2021 Q2 T1 1.421 2021 Mechanics of Materials 2021 Q1 Mechanical Engineering 2021 Q1 9.1 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Soto, Rogelio Chiodini, Stefano (orcid)0000-0002-8842-9324 García-Serrano, Aitor Universidad de Zaragoza Martín, Santiago Universidad de Zaragoza (orcid)0000-0001-9193-3874 Herrer, Lucia Universidad de Zaragoza (orcid)0000-0002-3576-5156 Pérez-Murano, Francesc Low, Paul J. Serrano, José Luis Universidad de Zaragoza (orcid)0000-0001-9866-6633 de Marcos, Susana Universidad de Zaragoza (orcid)0000-0002-7902-6005 Galban, Javier Universidad de Zaragoza (orcid)0000-0002-8973-5104 Cea, Pilar Universidad de Zaragoza (orcid)0000-0002-4729-9578 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 8, 18 (2021), 2100876 [10 pp.] Adv. mater. interfaces Advanced Materials Interfaces 2196-7350 1833057 http://zaguan.unizar.es/record/108515/files/texto_completo.pdf Versión publicada 2594968 http://zaguan.unizar.es/record/108515/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:108515 articulos driver 2023-05-18-14:12:59 ARTICLE