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Portail > Offres > Offre UMR9001-NOELEB-002 - Etude des propriétés de conversion électromécanique de structures piézoélectriques à base de GaN - H/F

Investigation of the electromechanical conversion properties of piezoelectric systems based on GaN - M/W

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : jeudi 6 octobre 2022

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General information

Reference : UMR9001-NOELEB-002
Workplace : PALAISEAU
Date of publication : Thursday, September 15, 2022
Type of Contract : FTC Scientist
Contract Period : 9 months
Expected date of employment : 3 January 2023
Proportion of work : Full time
Remuneration : between 2889 and 4082 €
Desired level of education : PhD
Experience required : 1 to 4 years

Missions

the objective is to characterize the piezoelectric conversion properties of GaN-based systems using the AFM system equipped with an electrical module. The correlation between the mechanical, electrical and conversion properties of GaN systems will be carried out. The mechanisms of piezo-conversion established from AFM analyses will also be compared with macroscopic measurements taken on electromechanical measurement benches. These multi-scale measurements will allow an extended characterization of GaN piezoelectric systems.

Activities

Sample preparation with nano-micro-fabrication techniques
AFM measurements

Skills

Strong expertise in electrical AFM measurements
An experience in nano-micro-fabrication will be a plus

Work Context

The development of GaN-based piezoelectric generators relies on the system's ability to efficiently convert mechanical strain into an electrical signal. To develop efficient energy harvesters, it is essential to deeply characterize the piezoelectric properties of the system. In recent years, the use of an atomic force microscope (AFM) combined with an electrical module has offered the possible to carry out such characterizations, thus helping to improve the performance of generator devices.

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