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Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers
Gold nanoparticle monolayers provide convenient templates to study charge transport in organic molecules beyond single junction techniques. Conductance is reported to increase by several orders of magnitude following immersion of alkanethiol-stabilized gold nanoparticle monolayers in a solution cont...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5238686/ https://www.ncbi.nlm.nih.gov/pubmed/28144553 http://dx.doi.org/10.3762/bjnano.7.196 |
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author | Reissner, Patrick A Tisserant, Jean-Nicolas Sánchez-Ferrer, Antoni Mezzenga, Raffaele Stemmer, Andreas |
author_facet | Reissner, Patrick A Tisserant, Jean-Nicolas Sánchez-Ferrer, Antoni Mezzenga, Raffaele Stemmer, Andreas |
author_sort | Reissner, Patrick A |
collection | PubMed |
description | Gold nanoparticle monolayers provide convenient templates to study charge transport in organic molecules beyond single junction techniques. Conductance is reported to increase by several orders of magnitude following immersion of alkanethiol-stabilized gold nanoparticle monolayers in a solution containing conjugated thiol-functionalized molecules. Typically, this observation is attributed to molecular exchange. Less attention has been paid to the role of the solvent alone. Here, we report on an increase in conductance of dodecanethiol-stabilized gold nanoparticle monolayers on Si/SiO(2) by an average factor of 36 and 22 after immersion in pure ethanol (EtOH) and tetrahydrofuran (THF), respectively. Analysis by scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS) reveals a solvent-induced decrease in lattice constant of close-packed monolayers. We compare the conductance of the monolayer after molecular exchange with two different oligophenylenes to shed light on the respective contribution of the solvent-induced structural change and the molecular exchange itself on the conductance increase. |
format | Online Article Text |
id | pubmed-5238686 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-52386862017-01-31 Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers Reissner, Patrick A Tisserant, Jean-Nicolas Sánchez-Ferrer, Antoni Mezzenga, Raffaele Stemmer, Andreas Beilstein J Nanotechnol Full Research Paper Gold nanoparticle monolayers provide convenient templates to study charge transport in organic molecules beyond single junction techniques. Conductance is reported to increase by several orders of magnitude following immersion of alkanethiol-stabilized gold nanoparticle monolayers in a solution containing conjugated thiol-functionalized molecules. Typically, this observation is attributed to molecular exchange. Less attention has been paid to the role of the solvent alone. Here, we report on an increase in conductance of dodecanethiol-stabilized gold nanoparticle monolayers on Si/SiO(2) by an average factor of 36 and 22 after immersion in pure ethanol (EtOH) and tetrahydrofuran (THF), respectively. Analysis by scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS) reveals a solvent-induced decrease in lattice constant of close-packed monolayers. We compare the conductance of the monolayer after molecular exchange with two different oligophenylenes to shed light on the respective contribution of the solvent-induced structural change and the molecular exchange itself on the conductance increase. Beilstein-Institut 2016-12-23 /pmc/articles/PMC5238686/ /pubmed/28144553 http://dx.doi.org/10.3762/bjnano.7.196 Text en Copyright © 2016, Reissner et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Reissner, Patrick A Tisserant, Jean-Nicolas Sánchez-Ferrer, Antoni Mezzenga, Raffaele Stemmer, Andreas Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
title | Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
title_full | Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
title_fullStr | Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
title_full_unstemmed | Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
title_short | Solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
title_sort | solvent-mediated conductance increase of dodecanethiol-stabilized gold nanoparticle monolayers |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5238686/ https://www.ncbi.nlm.nih.gov/pubmed/28144553 http://dx.doi.org/10.3762/bjnano.7.196 |
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