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Flexible piezoelectric nanosystems: physical study and electronic development of an integrated sensor matrix

Employeur : Université de Grenoble

Job Location

France : Grenoble

Publish date


Doctorat en:

Nanophysic, Electronics and systems engineering

Job Description:

The aim of the PhD thesis is to implement a matrix of flexible piezoelectric nanosensors, which enable the 3D reconstruction of a force or deformation field. The nanosensors based on GaN nanowires obtained by directed growth are fabricated and assembled at CEA. The candidate will tackle experimental aspects, which include the fabrication and the assembly of sensors and sensor networks (matrix) via controlled growth and deposition processes, first-level flexible electronic layers (interconnects), system integration on an object (mechatronics) and finally signal collection and processing through a dedicated reading electronics, to be designed based on the competences present in our laboratory. In parallel, the candidate will carry out studies at the fundamental level, such as investigating the mechanical transfer between the nanowire and its environment and its effect on the generated signal under deformation, or the study of the piezoelectric / pyroelectric coupling intrinsic to GaN nanowires. For this purpose, the candidate will have access to multi-physics simulation tools. Finally, investigations on the choice of materials and the characterisation thereof (structural, mechanical, thermal, optical, electrical) will be pertinent and may pursued. More generally, this PhD thesis will also provide the opportunity to develop applicable solutions in various fields such as deformation and impacts detectors for predictive maintenance, sensitive surfaces or electronic skin.

Practical Informations
D√©partement Syst√®mes Service Syst√®mes de Capteurs, √©lectroniques pour l'Energie Laboratoire Autonomie et Int√©gration des Capteurs  / Place : Grenoble / Start date of the thesis: 01/10/2018
University / Graduate School
Université Grenoble Alpes / Ecole Doctorale de Physique de Grenoble

Profil / Qualifications Requises

Master 2 in nanophysic with electronic and systems engineering or vice-versa: physic of solid, nanotechnologies, electronics architectures and programmation, testing and modelling (COMSOL)
Skills : physical modelling and development of analog and digital electronics


Contact person Elise SAOUTIEFF CEA Grenoble DRT/DSYS/SSCE/LAIC 17, rue des Martyrs 38054 Grenoble Phone number: +33 4 38 78 06 79 Email : [email protected]

[email protected]

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