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Título: | Towards a metallic top contact electrode in molecular electronic devices exhibiting a large surface coverage by photoreduction of silver cations |
Autor: | Martín, Santiago CSIC ORCID; Ballesteros, Luz M.; González-Orive, Alejandro; Oliva, Hugo; Marqués-González, Santiago; Lorenzoni, Matteo; Nichols, Richard J.; Perez Murano, Francesc X. CSIC ORCID ; Low, Paul J.; Cea, Pilar CSIC ORCID | Fecha de publicación: | 2016 | Editor: | Royal Society of Chemistry (UK) | Citación: | Journal of Materials Chemistry C 4(38): 9036-9043 (2016) | Resumen: | In this contribution the photoreduction of silver ions coordinated onto a Langmuir-Blodgett monolayer is presented as an effective method for the deposition of the top contact electrode in metal/monolayer/metal devices. Silver cations were incorporated from an aqueous AgNO sub-phase of Langmuir films of 4,4′-(1,4-phenylenebis(ethyne-2,1-diyl))dibenzoic acid upon the transference of these films onto a metallic substrate. Subsequent irradiation of the silver-ion functionalized Langmuir-Blodgett films with 254 nm light results in the photoreduction of silver cations to produce metallic silver nanoparticles, which are distributed over the organic monolayer and exhibit a surface coverage as large as 76% of the monolayer surface. Electrical properties of these metal/monolayer/metal devices were determined by recording I-V curves, which show a sigmoidal behaviour indicative of well-behaved junctions free of metallic filaments and short-circuits. The integrity of the organic monolayer upon the irradiation process and formation of the silver top-contact electrode has also been demonstrated through cyclic voltammetry experiments. | Versión del editor: | https://doi.org/10.1039/c6tc03319a | URI: | http://hdl.handle.net/10261/148258 | DOI: | 10.1039/c6tc03319a | Identificadores: | doi: 10.1039/c6tc03319a issn: 2050-7526 |
Aparece en las colecciones: | (ICMA) Artículos (IMB-CNM) Artículos |
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coveragephotoreduction.pdf | 4,41 MB | Adobe PDF | Visualizar/Abrir |
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