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Reference : UMR7374-NICNOU-010
Workplace : ORLEANS
Date of publication : Monday, November 09, 2020
Scientific Responsible name : Christine VAUTRIN-UL (ICMN Orléans) and Sylvie CONTRERAS (L2C Montpellier)
Type of Contract : PhD Student contract / Thesis offer
Contract Period : 36 months
Start date of the thesis : 1 February 2021
Proportion of work : Full time
Remuneration : 2 135,00 € gross monthly
Description of the thesis topic
The objective of this subject is to develop a new generation of water pollutants microsensors network based on the association of CVD graphene and Molecular Imprinted Polymer (MIP). By coupling the properties of the graphene in terms of conduction, robustness, electrochemical sensitivity and the MIP selectivity, the consortium wants to design a lab-on-chip for the detection of a wide scope of micropollutants highlighted in the Water Frameworks Directive. This thesis takes place within the ANR project MIGRASENS between two SMEs, DSA Technologies (Orleans) and Annealsys (Montpellier) and two academic labs, L2C (Montpellier) and ICMN (Orleans).
The student will be involved in the production of graphene with Annealsys, its Raman and AFM characterisation, then the lithographic development of the single-detection µsensor platform. At this stage, electrochemical characterisations will be carried out using ICMN's portable potentiostat, which will be housed at L2C for the required duration. The second year of the doctorate will in principle be spent at ICMN, where the student will work on the electropolymerization of MIP on graphene and the development of electroanalytical methods.
In parallel with the experimental work, the phD student will have to ensure a bibliographical survey on the overall subject.
A more fundamental research of the project will consist in studying the electroactivity of graphene using the electrochemical microscope (SECM) and the XPS spectroscopy in order to establish defect-electrochemical property correlations of graphenes.
Valuation of works: The phD student will have to write at least two articles in peer-reviewed scientific journals and present his or her works in national and international conferences.
Sadriu, I.; Bouden, S.; Nicolle, J.; Vautrin-Ul, C.; et al.; Talanta 2020, 207, 120222) .
Landois, P.; Decams, J.-M.; Contreras, S.; et al.; Phys. Chem. Chem. Phys. 2017, 19 (24), 15833–15841, DOI:10.1039/c7cp01012e.
Directive européenne : Directive 2013/64/UE; 2013; Vol. OJ L.
The missions will be on two different labs:
The laboratory Interface Confinements Materials and Nanostructures, (ICMN) UMR 7374 CNRS - University of Orleans. Within the ICMN laboratory, the PhD student will integrate the sensors Team in which he/she will develop his research.
The laboratory Charles Coulomb laboratory – Montpellier University, in the Quantum Transport & New 2D Systems” Team.
At the ICMN, the PhD student will be able to rely on the laboratory's characterization tools: XPS, an Infra-Red spectrometer, a conductivity measurement apparatus and an AFM. He/she will also be trained on the SECM tool coupled to the AFM in order to be able to carry out fundamental studies of the electrochemical activity of graphene at the scale of ten nanometers.
The PhD student will interact with all the partners of the ANR project which includes two SMEs, DSA Technologies (Orleans) and Annealsys (Montpellier) and two academic laboratories, L2C (Montpellier) and ICMN (Orleans). Their multidisciplinarity will provide a global view of the chain from graphene production to its integration in a multi-detection Lab-on-Chip prototype.
The co-direction of the thesis will be ensured by two directors: one from ICMN (Orleans) and the other from L2C (Montpellier), with periods of several months on both laboratories ICMN (Orleans) and L2C (Montpellier) over the duration of the thesis.
In each lab, the PhD student will have, as privileged interlocutors, the participants in the project, i.e. at the ICMN, two lecturers, a CNRS research fellow, a design engineer and a technician, and at L2C: a lecturer, a research engineer and an assistant engineer. At each lab, the phD student will have access to university and CNRS infrastructures (restaurant, CAES works council ...) and will have a desk and a laptop computer.
The travel expenses of the doctoral student will be covered up to a maximum of one return trip per period. Accommodation expenses will be paid by the doctoral student.
Constraints and risks
The contrat, planned to begin on 1st February 2021 could be delayed in case of COVID health measures.
The PhD student will share his working time between the ICMN (Orleans) and the L2C (Montpellier).
The doctoral thesis will be attached to the doctoral school EMSTU of the University of Orleans. The PhD student will be able to follow part of the courses at the University of Montpellier after prior validation by the EMSTU doctoral school of the University of Orleans and its supervisors.
This experimental part requires the use of chemicals and the use of spectroscopic techniques based on radiation.
Very good university degree (Diploma/Master) in Physics, Chemistry or another closely related field, with research experience (internship) in an academic laboratory or R&D department.
Very good level in English and in French language: Good oral and written communication skills (French/English) are expected to write reports and articles in scientific journals. We are looking for a candidate able to get involved in his or her project with autonomy and a strong motivation for scientific aspects and environmental application.
Very good communication and project management skills: The subject of this doctoral position is part of a project between four partners spread over two different regions, it is essential that the candidate has good communication and project management skills. The PhD student will be expected to keep the four partners informed and will participate in the organization of consortium meetings. The doctoral student will have to adapt quickly to different work environments, to different regions, to different teams and to a multidisciplinary subject.
Good knowledge of material science, in spectroscopy Raman, XPS, IRTF and in AFM
Practical experience with electrochemistry (cyclic voltammetry for example) and/or graphene material and/or characterization techniques as Raman, or XPS or AFM or SECM techniques and/or electronic (lithography, signal processing)
Kindly submit your completed application (including cover letter, detailed CV, Bachelor and master diplomas, a one-page summary of the last internship, the transcript of the two last study years, two references (who may be contacted).
Scientific excellence and extensive professional networking opportunities
Social benefits in conformity with the provisions of the Collective Agreement of CNRS
The deadline for sending applications is: 30 November 2020.
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