Institut Charles Sadron News
Titre : Constructing complex multilayer stacks from sustainable materials with anisotropic properties
Responsable : Felix Olivier (PECMAT)
Description du projet
Among all methods available for the preparation of multifunctional nanostructured composite materials, Layer- by-Layer (LbL) assembly, is currently one of the most simple and versatile nanofabrication method. Recently, we have assembled isotropic and anisotropic transparent wood-inspired nano-composite materials with mechanical properties challenging even medium quality steel. The combination of LbL assembly with grazing incidence spraying (GIS) extends our approach toward the preparation of complex (e.g. helical) multilayer films in which the composition and orientation of anisometric nano-objects like nanocelluloses can be controlled independently in each layer. These helical stacks exhibit pronounced chiroptical responses probed by circular dichroism (CD) spectroscopy and Mueller-matrix spectroscopic ellipsometry (MMSE). The goal of this internship is to study the preparation of nanocellulose-based composite materials using different deposition methods (dipping, spray-assisted, GIS, ...) and various surface analysis techniques (ellipsometry, AFM, …) and their optical and mechanical properties. The performance of these materials will be determined by advanced optical (UV- vis spectroscopy, CD spectroscopy, and MMSE) and mechanical (nanoindentation and tensile tests) characterization tools as a function of their composition and structure, the orientation of reinforcing agents, and the experimental conditions.
Informations complémentaires
We are looking for a highly motivated master 2 student having a formation in physical chemistry, chemical engineering or materials science and preferably with skills and/or interests in the following areas: materials, physical chemistry, thin layers, polymers and surfaces. Please address your application (CV, motivation letter, copy of recent grades) to Olivier Félix (olivier.felix@ics- cnrs.unistra.fr) and Pelinsu Demir (pelinsu.demir@ics-cnrs.unistra.fr).
Fin de l'offre : 01/01/2026
Lien externe : /
M2 Internship proposal FELIX 2025-2026.pdf