About us
PH2OTOGEN aims to create a scalable device that uses sunlight to make clean hydrogen and other valuable products that can generate revenue for the overall system. The project, co-funded by the European Union and supported by the Clean Hydrogen Partnership and its members, gathers 8 partners from 5 countries.
8
Partners
5
Countries
42
Months
43
Deliverables
Latest news & upcoming events
2025-10-20 | Shared protocols, shared progress: collaboration at the heart of PH2OTOGEN
While CEA, FAU, and EPFL teams worked together at EPFL (left) to refine a scalable photocathode assembly process, HZB researchers were at DIFFER exchanging on photoanode development (right).
2025-06-27 | Scale up of the transparent, conducting, porous support
To demonstrate the PH2OTOGEN device concept, a robust, transparent, and porous substrate for the photocatalyst particles is needed. WP4 is dedicated to this task. SiO2 fibres, selected for their transparency and mechanical robustness, are processed to form a monolithic semi-transparent scaffold sheets over 100 cm² in area.
2025-06-26 | Organic photoabsorber layer of the photocathode
The PH2OTOGEN demonstrator uses a photoabsorber layer consisting of organic semiconductor materials to capture light in the H2-evolving photocatalyst sheet. The selected materials are typically used in organic solar cells.