This PhD project, recently funded by the Jean-Marie Lehn foundation, aims at developing bio-inspired multifunctional nanocomposite materials with complex anisotropies (e.g. helical superstructures) combining steel-like mechanical properties and optical properties of interest (selective optical filtering). The present PhD work will focus on (i) the fabrication of hierarchical helical architectures made of cellulosic nanofibers and (bio-)polymers with tunable structural features (pitch, handedness) by combining layer-by-layer assembly and grazing incidence spraying and (ii) their structural and optical characterization using advanced characterization tools (e.g. SEM, UV-Vis spectroscopy, circular dichroism, Muller matrix polarimetry). Products that could be developed during this project are damage resistant optical filtering thin films, which will be competitive for future applications (e.g. counterfeiting protection, flexible displays).
Actualités
- Un polymère révolutionnaire pour le stockage de données
- Les sachets de thé commerciaux libèrent des millions de microplastiques lors de leur utilisation
- Un biofilm comestible pour prolonger la durée de vie des fruits
- Optimisation du recyclage des plastiques par robotique et IA
- Nouvelle génération d’écrans solaires : protection UV et refroidissement cutané