Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Fabrication of ultra-pure gold nanoparticles capped with dodecanethiol for Schottky-diode chemical gas sensing devices

  • Identification data

    Identifier: PC:1898
    Authors:
    Radu IonescuUmut CindemirTesfalem Geremariam WelearegayRaul CalaviaZouhair HaddiZareh TopalianClaes-Göran GranqvistEduard Llobet
    Abstract:
    DOI: 10.1016/j.snb.2016.07.182 URL: http://www.sciencedirect.com/science/article/pii/S0925400516310711 Filiació URV: SI
  • Others:

    Author, as appears in the article.: Radu Ionescu; Umut Cindemir; Tesfalem Geremariam Welearegay; Raul Calavia; Zouhair Haddi; Zareh Topalian; Claes-Göran Granqvist; Eduard Llobet
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: IONESCU, SEPTIMIU RADU; Umut Cindemir; Tesfalem Geremariam Welearegay; CALAVIA BOLDÚ, RAÚL; Zouhair Haddi; Zareh Topalian; Claes-Göran Granqvist; LLOBET VALERO, EDUARD
    Keywords: Monolayer-capped gold nanoparticles Dip-coating advanced gas deposition Schottky-diode chemical gas sensors
    Abstract: Ultra-pure monolayer-capped gold nanoparticles for chemical gas sensing devices were prepared by a novel two-step process: a physical vapour deposition technique was first employed to make dispersed ultra-pure size-controlled gold nanoparticles, and this step was followed by a coating process for functionalization of the gold nanoparticles with an organic ligand, specifically dodecanethiol. X-ray photoelectron spectroscopy proved that the nano-assemblies had high purity. Chemical sensing devices based on these nano-assemblies showed Schottky-diode behaviour. We believe this is the first observation of Schottky-diodes fabricated from nanomaterials based on metallic nanoparticles. Gas sensing experiments demonstrated that these devices were suitable for detecting volatile organic compounds.
    Research group: Microsystems and Nanotechnologies for Chemical Analysis
    Thematic Areas: Química Química Chemistry
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0925-4005
    Author identifier: 0000-0001-6211-0035; 0000-0001-8147-9778; 0000-0003-2553-946X; n/a; 0000-0001-9835-4795; n/a; n/a; 0000-0001-6164-4342
    Record's date: 2016-09-19
    Last page: 461
    Journal volume: 239
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0925400516310711?via%3Dihub
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1016/j.snb.2016.07.182
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2017
    First page: 455
    Publication Type: Article Artículo Article
  • Keywords:

    Sensors químics
    Monolayer-capped gold nanoparticles
    Dip-coating
    advanced gas deposition
    Schottky-diode chemical gas sensors
    Química
    Química
    Chemistry
    0925-4005
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