Objective
Semiconductor nanocrystals, also known as quantum dots (QDs), are promising materials for a wide range of applications, including optoelectronics (display devices), optical bioimaging, solar cells and photocatalysis. Nevertheless, many QDs, such as CdS, contain toxic elements. ZnO or ZnS are environmental-friendly alternatives but their use is limited by their wide band gap, which prevents the absorption of visible light. Heterostructures made of ZnO core with ZnS shell (ZnO@ZnS) represent a promising solution to reduce the band gap. They can be prepared by sulfidation of ZnO nanocrystals. Nevertheless, mastering their design requires to control their defects, and notably the O and S vacancies, which are assumed to facilitate the exchange of O2− and S2− anions during sulfidation reaction. The IDEA project aims at determining the structure and the concentration of defects in ZnO@ZnS heterostructures through the development of advanced solid-state NMR experiments. Since the isotopes found in Zn(O,S) nanocrystals (17O, 67Zn and 33S) are extremely challenging to detect by NMR (quadrupolar nuclei with low gyromagnetic ratio and low natural abundance), we will develop innovative solid-state NMR methods relying on ultra-high-field NMR (up to 28 T), dynamic nuclear polarization (DNP), low-temperature (down to 30 K), and spin labelling strategies. The obtained NMR data for ZnO@ZnS heterostructures in combination with DFT calculations will provide unique information on the structure of their defects (vacancies, O/S substitution), their amount and distribution between the core and surface regions. These novel insights will be crucial to optimize the optoelectronic properties of these quantum dots in a rational way. Furthermore, this project will equip with unique research and outstanding competences, which will lay the foundation of my future career as a highly qualified scientist capable of starting an independent career.
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.
- natural sciences physical sciences electromagnetism and electronics optoelectronics
- natural sciences chemical sciences catalysis photocatalysis
- engineering and technology nanotechnology nano-materials nanocrystals
- 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.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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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) HORIZON-MSCA-2024-PF-01
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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.
75794 PARIS
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.