17 May 2024
Job Information
- Organisation/Company
CNRS- Department
Centre Interdisciplinaire de Nanoscience de Marseille- Research Field
Chemistry
Physics
Technology- Researcher Profile
First Stage Researcher (R1)- Country
France- Application Deadline
6 Jun 2024 - 23:59 (UTC)- Type of Contract
Temporary- Job Status
Full-time- Hours Per Week
35- Offer Starting Date
1 Sep 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
Within the framework of this thesis, the studies will address several crucial aspects of the architecture of the envisaged systems:
- Type of nanocubes: particular attention will be paid to the diversity of types of nanocubes obtained chemically, starting with the use of classical silver and gold nanocubes (known-how in the team), then moving towards the development of new plasmonic systems with structures that can be activated or modified by light, or even combining plasmonic and magnetic aspects. The chemical synthesis of these nanocubes will be carried out using various colloidal synthesis approaches (hot injection, co-precipitation, polyol process, etc.).
- Type of surfaces on which nanocubes will be deposited: an initial phase will focus on magnetic or metallic surfaces, followed by the exploration of more complex systems, combining metallic materials and magnetic dielectrics (to explore gap resonances directly within magnetic cavities).
- Type of assemblies: different configurations of nanocube assemblies will also be studied. Initial studies will focus on disordered assemblies, obtained by various liquid deposition techniques (spin-coating, blade-coating, inkjet printing, Langmuir-Blodgett). Subsequently, ordered assemblies of NCs will be produced, from individual nanocubes arranged in periodic arrays, to multicubes entities to produce anisotropic shapes of interest. The development of complex structures based on magnetic nanocubes will also be considered at this stage.
- Type of characterisations: optical characterisations will be carried out both on dispersions in solution and on nanocubes assemblies on surfaces. For the surfaces, these analyses will be carried out both on a macroscopic scale, on samples of measurable size (mm²), and on single particle scale, with a correlation between the optical absorption and the morphology of the particle as seen by electron microscopy (SEM). Characterization of the magnetic responses will be carried out in collaboration with the German partner within the ANR-funded project.
Title : Title: Liquid synthesis of plasmonic nanocubes and study of their assembly on surfaces
Nanocrystals with plasmonic properties are central to many optical research activities. In this field, chemistry offers an assortment of tools that provide access to a variety of nanocrystals of controlled shapes and sizes, opening the way to precise manipulation of these optical properties. Chemical synthesis also provides stable solutions of nanocrystals that can be deposited on various surfaces using liquid deposition techniques, thus facilitating their integration into various applications at lower cost. Among the shapes accessible through the colloidal synthesis of plasmonic nanocrystals, nanocubes (NCs) stand out for their particular absorption modes and for the possibility of forming metal-insulator(optical cavity)-metal (NC) structures when deposited on suitable surfaces, making possible to obtain particularly efficient cavity resonances ("gap plasmon resonance"). By exploiting precise deposition techniques such as contact printing, it is even possible to create assemblies of nanocubes and thus develop new structures that are inaccessible by other means.
The subject of this thesis, funded by the Agence Nationale de la Recherche (French government agency), is part of the ANR-International Franco-German NanoPlasMag project, which aims to explore the interactions between the plasmonic and magnetic properties of nanomaterials. Plasmonics are at the heart of the research developments being carried out at the Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), while the magnetic studies are being carried out in collaboration with the German partner (HZDR). In this thesis, carried out at CINaM, the focus will be on the chemical synthesis and characterizations of controlled plasmonic nanocubes (O.Margeat - eq. FUN), as well as their precise manipulation and controlled assemblies on surfaces (B.Sciacca - eq. SUN). This work will contribute to our understanding of plasmonic-magnetic interactions and open new perspectives in this field.
Requirements
- Research Field
- Chemistry
- Education Level
- Master Degree or equivalent
- Research Field
- Physics
- Education Level
- Master Degree or equivalent
- Research Field
- Technology
- Education Level
- Master Degree or equivalent
- Languages
- FRENCH
- Level
- Basic
- Research Field
- Chemistry
- Years of Research Experience
- None
- Research Field
- Physics
- Years of Research Experience
- None
- Research Field
- Technology
- Years of Research Experience
- None
Additional Information
- Website for additional job details
https://emploi.cnrs.fr/Offres/Doctorant/UMR7325-VALSEV-116/Default.aspx
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Centre Interdisciplinaire de Nanoscience de Marseille
- Country
- France
- City
- MARSEILLE 09
- Geofield
Where to apply
- Website
https://emploi.cnrs.fr/Candidat/Offre/UMR7325-VALSEV-116/Candidater.aspx
Contact
- City
MARSEILLE 09- Website
http://www.cinam.univ-mrs.fr
STATUS: EXPIRED