Laboratoire MOLTECH-Anjou

Projet FOGEL

 

 

Project Name: FOGEL (Two-component Functional organOGELs)


Partners: MOLTECH-Anjou (Angers, coordination) ; IMMM (Le Mans) ; IPCM (Paris 6) ; KTH (Stockholm)


Coordinator at MOLTECH-Anjou: M. Sallé


Team(s) involved: SOMaF, CIMI, SAMSON


Funding: ANR (Projet de Recherche Collaboratif, PRC) ; défi 3, axe 5  401 k€ (Angers 225 k€ )                                           

Starting: 01 Jan 2017


Website :


Graphical Abstract:

 

 

 

 

 

 

Abstract:


The FOGEL project ambitions to contribute to a better understanding of the phenomena guiding the structuring process of self-assembled architectures, based on a specific family of donor-acceptor two-component organogels. Organogels constitute a fascinating class of materials prepared through a bottom-up approach. These systems are indeed able to transduce a recognition phenomenon occuring at the molecular level, into a macroscopic network of well-defined one-dimensional entangled assemblies. These materials, based on the self-assembly of organic molecules (gelators) in a given solvent, have been subject to intensive studies, which are justified by reasonably simple syntheses of precursors, a good modularity and an easy implementation. Whereas they have been successfully applied in various areas, they suffer from several handicaps which have notably hampered their use in the rapidly expanding field of organic electronics (photonics). On the one hand, rationalization of the gelation capacity of a given system is extremely delicate; on the other hand, they rely on assemblies which present defects which strongly affect their performance for electronic applications.
In this context, spectacular breakthroughs were accomplished in the last few years, following an approach that is based on donor-acceptor (D-A) two-component organogels. The latter offer the possibility of combining both the intrinsic properties of both entities (e.g. optical / electronic), while relying on their D-A complementarity to generate a self-assembly by charge transfer. Based on recently highlighted results of the group, we propose to address a comprehensive study covering the various facets of this promising approach. It will allow primary studies for detection purposes (eg. explosives) as well as for charge transport (conductivity). Finally, these fundamental studies will be reinvested in developing new organogelators, in order to extend the scope of this innovative approach.