📋 Tender Overview
Light-Frozen Dynamic Covalent Synthesis Of Organic Semiconducting Materials
Funded Under
European Research Council (Erc)
Total Cost
€ 1 500 000,00
Eu Contribution
€ 1 500 000,00
Coordinated By
Universite D~Angers
France
Objective
Designing the materials of tomorrow requires the development of conceptually different synthetic methodology. Creating large conjugated molecular scaffolds often requires many synthetic steps, hindering their exploration and the discovery of new organic semiconductors.
PhotoFreeze is a synthetic methodology that combines the best features of dynamic covalent chemistry and conventional covalent synthesis. With this novel chemical approach, a wide range of new functional materials will be developed, namely underrepresented electron-poor organic semiconductors, studied for their important optoelectronic properties. These materials have become essential to the development of organic electronic devices such as Organic Light Emitting Diodes (OLEDs), Organic Solar Cells (OSCs) or Organic Field Effect Transistors (OFETs) among others.
The key advantage of PhotoFreeze is that a complex dynamic covalent library of nanographene-based polyimines in exchange can be quickly and irreversibly frozen by visible-light irradiation via photocyclization. Such reaction retains and even strengthens the electronic conjugation between the starting materials. This method holds a great promise in the development of a wide variety of imide-based complex conjugated molecular architectures. By varying the reactants stoichiometry, composition, geometry and reaction conditions, a specific target molecule can be prepared in a one pot-sequence.
