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Recombination in Organic Photovoltaics: Impact of Morphology and Long-Range Non-Equilibrium Transport

Objective

The global transition towards clean energy requires new ways to generate electricity. One promising approach are organic bulk heterojunction (BHJ) solar cells. These devices are based on a phase-separated network of two organic materials and hold the potential to make solar power cheap and sustainable. However, there is still a lack of fundamental understanding in key areas. One important open question concerns the charge recombination. Although identified as main loss mechanism in BHJ solar cells, its underlying principles remain mysterious. ReMorphOPV comes to address these limitations by developing a new recombination model. The basic hypothesis is that a successful theoretical description must properly consider two key features of a BHJ blend: the complex nanoscale morphology and the dispersive type of charge transport. To account for both aspects, ReMorphOPV will make use of extensive kinetic Monte Carlo simulations with high spatial and temporal resolution. The proposed numerical approach includes most realistic assumptions on the nanostructure (domain size, phase purity, molecular miscibility etc.) and previously overlooked phenomena of charge transport, namely the non-equilibrium and long-range motion of carriers. The predictions of the simulations will be validated by experiments on different prototype material systems. A feedback loop between experiment and numerical model will be initialised to refine the theoretical description and define new parameterisations of the recombination rate that enable easy dissemination to other researchers. With such a model at hand, it will be possible to find design rules for organic solar cells with minimised recombination losses even at large thickness. These results are of great relevance for the photovoltaics community and will help to reinforce Europe's world-leading position in renewable energies.

Fields of science (EuroSciVoc)

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Programme(s)

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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.

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.

MSCA-IF-EF-ST - Standard EF

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) H2020-MSCA-IF-2017

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Coordinator

ABO AKADEMI
Net EU contribution

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.

€ 93 471,43
Address
DOMKYRKOTORGET 3
20500 ABO
Finland

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Region
Manner-Suomi Etelä-Suomi Varsinais-Suomi
Activity type
Higher or Secondary Education Establishments
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Total cost

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.

€ 93 471,97

Participants (1)

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