Project description
Simplifying the design of complex molecular structures for novel materials
Developing advanced materials for future technologies often requires complex and time-consuming synthesis processes. The ERC-funded PhotoFreeze project proposes a novel chemical method that simplifies this issue by combining dynamic covalent chemistry with conventional covalent synthesis. The core concept relies on using visible-light irradiation to ‘freeze’ dynamic nanographene-based polyimines into stable, highly conjugated structures. This approach should allow the rapid, one-pot creation of unique molecular architectures, such as graphene nanoribbons, conjugated macrocycles and covalent organic frameworks that are otherwise hard or impossible to produce. These materials show great promise for use in organic electronics applications.
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.
PhotoFreeze will be applied to synthesize various architectures including linear, helical, cyclic graphene nanoribbons, conjugated macrocycles and covalent organic framework. The methodology described here allows the synthesis of otherwise inaccessible or very tedious to prepare large and tuneable structures, and solves fundamental synthetic challenges. The proposed materials hold a great promise for novel high performances organic electronics and will be integrated into relevant devices, guiding the design of future n-type organic semiconductors.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology nanotechnology nano-materials two-dimensional nanostructures graphene
- natural sciences physical sciences electromagnetism and electronics semiconductivity
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2023-STG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
49035 Angers Cedex 01
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.