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AI-Driven Discovery of Stable Wide Band Gap Perovskite Materials for Perovskite-Silicon Multi-Junction Solar Cell

Project description

AI-accelerated identification of stable wide-bandgap perovskites

Wide-bandgap perovskites are semiconductor materials with high-energy bandgaps. When used in tandem solar cells (layered with commercially available silicon cells), they enable more effective use of the solar spectrum to surpass standard efficiency limits. Long-term operation stability is a persistent challenge. With the support of the Marie Skłodowska-Curie Actions programme, the Perov-AccTEST project aims to address this by replacing traditional trial-and-error experimentation with a machine learning-guided framework. Targeted screening of diverse perovskite formulations will be supported by machine learning-assisted generation of composition-quality maps. The long-term stability of predicted compositions under intensified stress conditions will be assessed with high-throughput optical characterisation. The best candidate will be integrated into multi-junction perovskite-silicon solar cell prototypes.

Objective

The conversion of solar energy into electricity is critical for reducing carbon emissions and expanding renewable energy generation. Photovoltaic (PV) technologies offer a compelling solution for grid-connected and building-integrated applications. Among emerging materials, halide perovskites have shown exceptional promise for next-generation PV devices. In particular, wide bandgap halide perovskites, when integrated in tandem with commercially available silicon solar cells, are revolutionizing the solar industry. These multi-junction architectures enable significantly higher power conversion efficiencies by more effectively harvesting the solar spectrum.
However, the long-term operational stability of wide bandgap perovskites remains a key bottleneck in advancing perovskite–silicon tandem technologies. Traditional trial-and-error approaches to materials discovery are slow and labor-intensive, limiting progress. This project proposes a machine learning–guided closed-loop experimental framework to accelerate the identification of stable wide bandgap perovskite compositions. The workflow integrates robotic synthesis, high-throughput optical characterization, rapid data analysis, and predictive modeling to efficiently navigate complex multi-dimensional composition spaces.
In Phase I, a Materials Acceleration Platform (MAP) will be deployed to screen diverse perovskite formulations. Machine learning algorithms will generate composition–quality maps, enabling targeted exploration without exhaustive testing. In Phase II, an Accelerated Testing Platform (ATP) will be used to evaluate the long-term stability of ML-predicted compositions under intensified stress conditions. Multiple samples will be tested in a high throughput manner to identify robust candidates. The most stable composition will then be advanced for integration into multi-junction perovskite–silicon solar cell prototypes.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

FORSCHUNGSZENTRUM JULICH GMBH
Net EU contribution
€ 217 965,12
Address
WILHELM JOHNEN STRASSE
52428 JULICH
Germany
Region
Berlin Berlin Berlin
Activity type
Research Organisations
Links
Total cost
No data