GRAUBY, Stéphane; BEN AMOR, Aymen; HALLAIS, Géraldine; VINCENT, Laetitia; DILHAIRE, Stefan

doi:10.3390/nano11051199

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GRAUBY, Stéphane
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

BEN AMOR, Aymen
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

HALLAIS, Géraldine
Centre de Nanosciences et de Nanotechnologies [C2N]

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Article de revue

Este ítem está publicado en

Nanomaterials. 2021-05-01, vol. 11, n° 5, p. 1199

MDPI

Resumen en inglés

Based on our previous experimental AFM set-up specially designed for thermal conductivity measurements at the nanoscale, we have developed and validated a prototype which offers two major advantages. On the one hand, we can simultaneously detect various voltages, providing, at the same time, both thermal and electrical properties (thermal conductivity, electrical conductivity and Seebeck coefficient). On the other hand, the AFM approach enables sufficient spatial resolution to produce images of nanostructures such as nanowires (NWs). After a software and hardware validation, we show the consistency of the signals measured on a gold layer on a silicon substrate. Finally, we demonstrate that the imaging of Ge NWs can be achieved with the possibility to extract physical properties such as electrical conductivity and Seebeck coefficient, paving the way to a quantitative estimation of the figure of merit of nanostructures.< Leer menos

Palabras clave en inglés

Nanowire

Thermal conductivity

Electrical conductivity

Imaging

DOI

http://dx.doi.org/10.3390/nano11051199

Proyecto ANR

Propriétés de la phase hexagonale 2H du Ge et Si - ANR-17-CE30-0014

Orígen

Importado de Hal

Centros de investigación

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798