Final Report Summary - PHOXNA (Photo-Induced Processes in oxalate network based nano-objects)
In a first step, the adaptation of nanochemistry methods (reverse-micelles technique) to this family of compounds, in order to obtain size-controlled particles has been performed. With [Ru(bpy)3][NaCr(ox)3] nanoparticles, the influence of size reduction on the energy migration process has been investigated. A size-dependent directional energy migration towards the nanocrystal’s surface has been evidenced. The preparation of functionalized nano-objects able to harvest the energy migrating at the surface, either by grafting complexes or by epitaxial growth of a different oxalate network shell on the surface, have been realized. The synthesis of core-shell nano-objects has been achieved. However, the core-to-shell energy transfer is not efficient in such systems. Therefore, the grafting of lanthanide complexes at the nanocrystal surface has been envisaged. Preliminary results suggest that this approach is a promising way to prepare functionnalized nano-objects.