10/04/2026
We are proud to share an exciting milestone: our latest research has been published in Nature Communications!
This achievement is the result of three years of work within the European Graphene-CORE3 project (Spear Head 5 – GRAPES), focused on the industrial development of perovskite/silicon tandem technology through the integration of advanced 2D materials—within the broader framework of the Graphene Flagship initiative.
This work stems from a strong joint effort between academia and industry. In particular, we acknowledge the collaboration between the Università di Roma Tor Vergata (CHOSE Centre for Hybrid and Organic Solar Energy ), the
Hellenic Mediterranean University (Institute of Emerging Technologies), and key industrial partners—most notably 3SUN (Enel), whose bifacial silicon heterojunction technology serves as the bottom cell in the tandem panels developed in this study.
In our research, we introduce an innovative approach based on a field-effect junction within the perovskite layer, enabled by advanced interface engineering and the use of Cl-terminated MXenes. The semi-transparent perovskite top modules achieve efficiencies exceeding 16% and are successfully integrated into large-area (0.2 m²) 4T tandem panels compatible with existing Si-HJT production lines.
Among the key outcomes:
🔹 Scalable 4T tandem architecture with industrial compatibility
🔹 Semi-transparent perovskite modules with >16% efficiency
🔹 Demonstration on 0.2 m² tandem panels
🔹 Power Generation Density (PGD) > 23 mW/cm² under 30% albedo conditions
🔹 Excellent outdoor operational stability
These results represent a concrete step toward the commercialization of tandem photovoltaics, highlighting the transformative potential of combining perovskites with silicon and 2D materials for efficient, scalable, and industrially viable solar technologies.
A sincere thank you to all collaborators and partners who made this possible. We look forward to continuing this journey toward more efficient, stable, and sustainable energy solutions.
In the following the link to the OA paper:
Perovskite/silicon tandem solar cells face challenges in efficiency and stability. Agresti et al. introduce a MXene-based surface dipole passivation to form a field-effect junction in semi-transparent perovskite modules, achieving efficiencies above 16% on 60 cm². Integrated four-terminal ta...
