Autor según el artículo: Radu Ionescu; Umut Cindemir; Tesfalem Geremariam Welearegay; Raul Calavia; Zouhair Haddi; Zareh Topalian; Claes-Göran Granqvist; Eduard Llobet

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: IONESCU, SEPTIMIU RADU; Umut Cindemir; Tesfalem Geremariam Welearegay; CALAVIA BOLDÚ, RAÚL; Zouhair Haddi; Zareh Topalian; Claes-Göran Granqvist; LLOBET VALERO, EDUARD

Palabras clave: Monolayer-capped gold nanoparticles Dip-coating advanced gas deposition Schottky-diode chemical gas sensors

Resumen: 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.

Grupo de investigación: Microsystems and Nanotechnologies for Chemical Analysis

Áreas temáticas: Química Química Chemistry

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 0925-4005

Identificador del autor: 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

Fecha de alta del registro: 2016-09-19

Página final: 461

Volumen de revista: 239

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0925400516310711?via%3Dihub

DOI del artículo: 10.1016/j.snb.2016.07.182

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2017

Página inicial: 455

Tipo de publicación: Article Artículo Article