Objective
Quantum photonic integrated circuits are ideal platforms for quantum computation and communication. A long-standing issue in their realization is the lack of a deterministic quantum light source compatible with silicon. Indeed, planar self-assembled III-V quantum dots (QDs) –which provide high-performance quantum light sources (i. e. single photons)– can hardly be grown on Si, and also lack the positioning control necessary for efficient post-growth III-V-on-Si hybrid integration.
Nanowires (NWs), in contrast, are rod-shaped nanoscale semiconductors that can host intrinsically site-controlled III-V QDs and can even be grown on Si. However, QDs in NWs have yet to reach the performances of planar QDs, an issue that could be overcome by integrating QDs in NWs in photonic cavities. Such a solution is, at present, out of reach, because conventional creation of QDs during NW growth hinders their successful integration with cavities.
The NANOWHYR project will allow the integration of QDs in NWs with cavities by realizing an unprecedented post-growth creation of QDs inside NWs. The new method consists of the incorporation of hydrogen in III-V nitride NWs whose bandgap can be controllably modified by hydrogen. Subsequent hydrogen removal by scanning near-field illumination will permit tuning the bandgap of the NW in a nanoscale region. This will allow us to form a QD in that region with a widely tunable energy. The deterministic control of the QD position and energy is the key that will enable us to efficiently integrate the QD with: A) planar photonic cavities fabricated on Si and B) vertical NW cavities grown on Si. This will lead to the breakthrough of a site-controlled, electrically-driven, telecom-friendly single photon source in Si photonic circuits.
Moreover, this new strategy permits the modulation of semiconductor properties at the nanoscale, and it is thus expected to open new grounds in other research areas, such as photovoltaics and thermal energy converters.
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 semiconductivity
- natural sciences chemical sciences inorganic chemistry metalloids
- engineering and technology environmental engineering energy and fuels renewable energy solar energy photovoltaic
- natural sciences physical sciences theoretical physics particle physics photons
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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-2021-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.
00185 Roma
Italy
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.