Objective
Quaternary dilute nitrides GaInPN and GaPAsN III-V alloys will be grown and characterized in view of elaborating tandem solar cells in which, the quaternary alloy will be lattice matched on a silicon substrate. With such alloys, by varying their composition, it is possible to decrease simultaneously the bandgap and the lattice constant, which is not possible with nitrogen free III-V alloys. The dilute nitrides will be grown by Metal Organic Vapour Phase Epitaxy and their aimed composition will be such that they will have both a bandgap around 1.7 eV and the silicon lattice constant. The materials elaborated will be characterized by X-ray diffraction, transmission electron microscopy, electrical and optical techniques. Their characteristics will be optimized for having electrical characteristics suitable for elaborating high efficiency tandem solar cells. A great attention will be paid on defects and impurity that could affect the electrical properties of the layers. In particular, carbon and hydrogen, issued from the precursors, that could be present in rather high concentration and that are suspected to play a negative role for the efficiency of the cells will be investigated. Tandem solar cells will be designed and elaborated and their characteristics will be optimized. Attention will be paid to anti reflection coatings compatible with the dilute nitrides.
Fields of science (EuroSciVoc)
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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.
Topic(s)
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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.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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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.
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Coordinator
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.