New project at Roltec: LEEMONS

At the end of 2024, based on an agreement concluded between Segton Advanced Technology (Segton ADT), Commissariat a l'Energie Atomique et Aux Energies Alternatives (CEA), International Solar Energy Researchcenter Konstanz Isc Ev (ISC Konstanz), Roltec sp. z o. o. and Communaute d' Universites et Etablissements Universite Bourgogne - Franche - Comte (UBFC), the LEEMONS (Low-Energy Electron Multiplication On Nanostructured Solar Cells) project was started.

What do we want to achieve?

The LEEMONS project will demonstrate a new technology – the electron multiplication phenomenon, which overcomes three fundamental thermal losses in photovoltaic cells by converting high-energy electrons into several lower-energy electrons.

This solution is compatible with 80% (probably 95%) of current PV production capacities, as well as future designs. Therefore, it requires minimal changes to current production lines, resulting in low capital investment. The LEEMONS project will produce prototype photovoltaic cells (PERC-based and heterojunction solar cells).

These integrated cells are expected to demonstrate increased energy conversion efficiency, thus opening up a new technological area that will help deliver both economic, social and environmental benefits.

What will be our role in the project?

The Roltec team will be responsible for the project's development of low-temperature metallization methods for silicon cells, numerical analysis and computer simulations of embedded nanostructures, and aging tests of the cells produced within the project.

In December 2024, a kick-off meeting for the Leemons project took place, where participants discussed the technical and organizational details of project implementation. Representatives from all consortium partners were present. Roltec was represented by its Technical Director, Dr. Marek Basta.