Epitaxial p-type thermoelectric perovskite oxides for integrated thermal energy harvesting

14 Apr 2024
Job Information

Organisation/Company

Ecole Centrale de Lyon (ECL)

Research Field

Technology » Materials technology
Physics

Researcher Profile

Recognised Researcher (R2)
Leading Researcher (R4)
First Stage Researcher (R1)
Established Researcher (R3)

Country

France

Application Deadline

21 May 2024 - 22:00 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Offer Starting Date

1 Oct 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Domaine et contexte scientifique / Scientific domaine and context

Thermal management has become of major importance on microelectronic platforms. Either device temperature has to be reduced or waste thermal energy could be harvested and converted into electricity to build autonomous devices. Thermoelectric (TE) materials allow reaching both objectives, by Peltier effect or by Seebeck effect, respectively [1]. TE materials are heavily doped semiconductors, and standard TE materials are based on Te (e.g. Bi2 Te3 ) [2], which are toxic, chemically unstable and expensive because of scarcity [3-4]. Oxides of perovskite structure (ABO3 ) are good alternative TE materials overcoming these issues since its chemical flexibility allows a wide range of doping and thus TE property optimization by cationic substitution [3-6]. Furthermore, they can contain low toxic and abundant elements [3,7], and allow proper advanced integration on Si-based microelectronic platforms by molecular beam epitaxy (MBE) for which the leading team has a long-term international recognized expertise [8].

 

Objectifs de la thèse / Job description

In order to overcome the current issues of this thematic, we propose to:

Develop promising p-type TE oxides of perovskite-structured solid-solutions by MBE at INL (partly based on ab-initio calculations from a collaboration with C. Adessi, ILM)

Study and optimize the global TE properties by doping, strain, defects, couplings, and interface strategies (physical properties partly measured in collaboration with S. Pailhès and V. Giordano, ILM)

Develop a sustainable technological process for the fabrication of a functional integrated TE micromodule (at INL, with the support of the Nanolyon technological platform).

 

Funding category: Contrat doctoral

PHD title: Electronique, micro et nano-électronique, optique et laser
PHD Country: France

Requirements
Specific Requirements

The candidate should have very good marks (average >12) and a strong background in solid-state physics and materials science. Knowledges/skills in solid-state chemistry, crystalline growth process, structural characterizations by diffraction and spectroscopy means, (thermo)electrical characterizations, as well as microfabrication tasks would be appreciated in addition. He/she should enjoy collaborative and experimental works, partly in cleanroom environment, within the group and with external collaborators. He/she should have summary skills with good communication abilities.

Additional Information
Work Location(s)

Number of offers available

1

Company/Institute

Ecole Centrale de Lyon (ECL)

Country

France

City

ECULLY

Geofield

Where to apply

Website

https://www.abg.asso.fr/fr/candidatOffres/show/id_offre/122859

Contact

Website

https://www.ec-lyon.fr/

STATUS: EXPIRED