Direct electrical transport measurement on a single thermoelectric nanowire embedded in an alumina template
| Autor: | Christophe Garagnon, Daniel Bourgault, Laurent Cagnon, Meriam Ben Khedim, Valerie Serradeil |
|---|---|
| Přispěvatelé: | Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Micro et NanoMagnétisme (MNM ), STMicroelectronics [Rousset] (ST-ROUSSET) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
[PHYS]Physics [physics]
Materials science Nanowire General Physics and Astronomy Nanotechnology 02 engineering and technology Overpotential 010402 general chemistry 021001 nanoscience & nanotechnology Thermoelectric materials 01 natural sciences 0104 chemical sciences Characterization (materials science) Electrical resistivity and conductivity Thermoelectric effect Physical and Theoretical Chemistry Thin film 0210 nano-technology Nanoprobing ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Physical Chemistry Chemical Physics Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2016, 18 (17), pp.12332-12337. ⟨10.1039/c6cp00972g⟩ |
| ISSN: | 1463-9076 1463-9084 |
| DOI: | 10.1039/c6cp00972g⟩ |
| Popis: | Electrical conductivity is a key parameter to increase the performance of thermoelectric materials. However, the measurement of such performance remains complex for 1D structures, involving tedious processing. In this study, we present a non-destructive, rapid and easy approach for the characterization of electrical conductivity of Bi2Te3 based single nanowires. By controlling the nanowire overgrowth, each nanowire emerges in the form of a micrometric hemisphere constituting a unique contact zone for direct nanoprobing. As nanowires need no preliminary preparation and remain in their template during measurement, we avoid oxidation effects and time-consuming processing. Electrical transport results show a low nanowire resistivity for compact nanowires obtained at low overpotential. Such values are comparable to bulk materials and thin films. This method not only confirmed its reliability, but it could also be adopted for other semiconducting or metallic electrodeposited nanowires. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|