PhD Photochemistry and nanofabrication (M/F)
New
- FTC PhD student / Offer for thesis
- 36 month
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Photophysique et Photochimie Supramoléculaires et Macromoléculaires
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
91191 ST AUBIN
Contract Duration
36 month
Date of Hire
01/10/2026
Remuneration
2300 € gross monthly
Apply Application Deadline : 23 July 2026 23:59
Job Description
Thesis Subject
Nanopipette based optical sensors for tracking chemical gradients at the vicinity of catalytic nanoparticles
Your Work Environment
-The development of efficient redox catalysts which can retain activity under continuous operation is a key challenge for the development of stable water splitting schemes. However, most reactions involved in these systems, such as oxygen or hydrogen evolution, dramatically affect the local environment pH. This phenomenon becomes a major source of complexity for understanding the long-term nanocatalyst behavior and the associated deactivation mechanisms. Indeed, being activity dependent, the extent of local pH variation becomes highly heterogeneous, depending on size, shape and nanoenvironment of each nanoobject. As a result, there is a strong demand for the development of non-invasive methodologies, able to probe chemical gradients in the vicinity of individual nano objects in operando conditions.
In this PhD thesis, we plan to develop a series of new tools for probing chemical gradients in the vicinity of individual electrocatalytic particles. We propose to use nanopipettes as supports for molecular optical probes, using light activated mechanisms to localize the probes in the apex of the nanopipettes (Fig.1). This supported optical approach offers several advantages over existing methodologies: (i) fast time responses, (ii) small size, which be brought within close proximity of the nanoobject surface, (iii) inertness, only minimally affecting with the catalytic system. The work is supported by several preliminary results, including controlled surface modification with attoL precision, demonstration of pipette modification in the microscale, and preliminary demonstration pH dependent emission.
We are looking for a motivated M2 student with a background in physical chemistry or nanofabrication. Knowledge of basic scientific programming and interest for the development of original instrumentation would be a plus, but are not mandatory. The candidate will be expected to evolve in an international environment, and take part in emerging national (through interaction with the PEPR LUMA network) and European collaborations (Silesian University of Tecnology in Gliwice).
Constraints and risks
Risk associated to work in a chemistry lab and usage of laser sources
Compensation and benefits
Compensation
2300 € gross monthly
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR8531-VITBRA-007 |
|---|---|
| CN Section(s) / Research Area | Physical chemistry, theoretical and analytic |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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