Reference: PHY-DMPH-2015-10 (recall in all correspondence)

Laboratory in ONERA:
Topic: PHYSIQUE
Adress (centre ONERA): Châtillon
Department : MESURES PHYSIQUES
Team: Capteurs et MicroTechnologie
Tel.: 01.46.73.48.35
ONERA Responsible: Olivier Le Traon
Email: olivier.le_traon@onera.fr

PhD supervisor:
Name: Fabrice STHAL
Adress: ENSMM / FEMTO-ST – Besançon
Tel.: 03 81 40 28 31
Email: fsthal@ens2m.fr

Summary:

The vibration of a dielectric resonator (pure insulator, piezoelectric or ferroelectric materials) requires conductive electrodes deposited on its surface to obtain excitation and detection of movements. Metal electrodes of a few 100 nm thick are generally implemented to provide good electrical conductivity.

In the case of micro / nano resonators, these electrodes can be particularly intrusive and thus alter the intrinsic properties of the resonator (quality factor, residual stresses alter the frequency stability). This PhD thesis aims to study the potential of the new 2D-crystals (graphene dichalcogenide molybdenum (MoS2) or niobium (NbSe2) …), their electronic properties at atomic scale can be particularly relevant to the realization of non-intrusive electrodes.

External Collaborations: LEM, LPN, IEF

Ph.D. profile candidates

Requirements: M.Sc. degree (or equivalent)
Main skills: Micro & Nanotechnologies, Material Science, Mechanics, Physic