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CEA Tech
PhD position - Sub-ppb detection using graphene nanomechanical resonators with optomechanical transduction
CEA Tech
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JOB DETAILS
Published: 8 days ago
Application deadline: Oct 31
Location: Grenoble, France
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PhD position - Sub-ppb detection using graphene nanomechanical resonators with optomechanical transduction

SL-DRT-19-0516

RESEARCH FIELD

Materials and applications

ABSTRACT

Combining ultimate surface-to-volume ratio, ultra-low mass and elevated Young's modulus, graphene rises as an optimal candidate for the next generation of ultra-low NEMS resonator dedicated to nano-gravimetric sensing. During this Ph.D., a prototype of a resonating graphene NEMS shall be fabricated and applied to mass sensing (being for gas or biological sensing). Current transduction techniques used for silicon NEMS are hardly adaptable to graphene resonators. Hence, the developement of these ultimate physics objects is currently hindered by lack of efficient transduction techniques. We aim, during this Ph.D. , at combining advantages offered by graphene resonator with an optomechanical transduction of its movement, so to demonstrate a sensor with the ability of sensing masses in the Dalton range or gaseous compounds concentration below the ppb limit. These resolutions are currently out-of-reach with current silicon NEMS technology

LOCATION

Département Composants Silicium (LETI)

Laboratoire Composants Micro-Capteurs

Grenoble

CONTACT PERSON

ALAVA Thomas

CEA

DRT/DCOS//LCMC

17 Rue des Martyrs 38000 GRENOBLE

Phone number: 0438780775

Email: thomas.alava@cea.fr

UNIVERSITY / GRADUATE SCHOOL

Université Grenoble Alpes

Electronique, Electrotechnique, Automatique, Traitement du Signal (EEATS)

START DATE

Start date on 01-09-2019

THESIS SUPERVISOR

HENTZ Sébastien

CEA

DRT/LETI/DCOS/SCMS/LCMC

17 rue des martyrs38054 Grenoble Cedex 9

Phone number: 0438782891

Email: sebastien.hentz@cea.fr

« The age limit is 26 years for PhD offers and 30 years old for post-doc offers. »

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