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Portail > Offres > Offre UMR5635-DAMVOI-013 - Chercheur H/F Synthèse de semi-conducteurs bidimensionnels de haute qualité

H/F Synthesis of high quality two-dimensional semiconductors

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

Date Limite Candidature : mercredi 8 février 2023

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General information

Reference : UMR5635-DAMVOI-013
Nombre de Postes : 1
Date of publication : Wednesday, January 18, 2023
Type of Contract : FTC Scientist
Contract Period : 12 months
Expected date of employment : 13 February 2023
Proportion of work : Full time
Remuneration : between €2833 and €3257 gross monthly depending on experience
Desired level of education : PhD
Experience required : 1 to 4 years


2D materials (2DM), such as semiconducting transition metal dichalcogenides (TMD) or graphene exhibit remarkable electronic properties and strong light-matter interactions. 2DMs are also lightweight and sensitive nanomechanical systems that are electrically and optically controllable. The study of the physical properties of 2D materials is however limited by the quality of the original massive crystals. Almost all TMD crystals used for exfoliation are synthesized by chemical vapor transport (CVT) using a transport agent such as iodine. Measurements on TMD monolayers consistently revealed spatial inhomogeneity, disorder and defect densities (greater than 10^12 cm-2) and emission efficiency degradation.

The objective of the postdoctoral position will be to develop a new way of synthesizing TMD crystals (monolayer or bulk crystals) and to study their properties. The successful candidate will be part of a collaborative research project that aims to demonstrate original atomically thin opto-electro-mechanical devices.


The successful candidate will be responsible for the development of a new synthetic route for the synthesis of bulk TMD crystals and their subsequent exfoliation.
The specific tasks are:
- Synthesis of bulk crystals
- Perform physical characterization of samples
- Mechanically exfoliate the crystal in a monolayer regime by dry transfer
- Prepare van der Waals heterostructures using the deterministic dry transfer method.


We are looking for a motivated candidate with a documented academic background (PhD) and laboratory experience in the field of 2D crystals and in particular TMD. Experience in the field of crystal growth is highly desirable.
The candidate must be self-motivated and able to conduct rapid research and work independently in a team-oriented environment.

Work Context

The research will be carried out at the European Institute of Membranes (Institut Européen des Membranes, IEM, CNRS UMR5635, UM, ENSCM) of the University of Montpellier. IEM is a leading institute in the field of membrane science with excellent technical support and in-house facilities for membrane fabrication and characterization. The institute is affiliated with the University of Montpellier, and a member of the Pôle Chimie Balard, the Carnot Chimie Balard institute and the Labex CheMiSyst. Our group has dedicated state-of-the-art facilities to carry out the project.

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