The PROOF project ends with an important achievement for the consortium.

The partner University of Freiburg with his institute FMF (Freiburg Materials Research Center) has manufactured a flexible module with an active area of 713 cm², based on PF2 (a polymer synthesized in the laboratories of the partner CNRS in Strasbourg), developed without the use of toxic solvents and whose architecture does not contain a rare element (Indium) (processes developed jointly by teams from the Icube laboratory, the University of Freiburg, and the Fraunhofer ISE). The module revealed a power conversion efficiency of 3.8% under one sun illumination. This performance, although encouraging, is not yet at the level of performance theoretically achievable with the materials used. The optimisation of the modules’ manufacturing parameters should make it possible to increase the conversion efficiency by almost a factor of two.

In a next step, a module of the same type will be integrated into a stand-alone skylight for industrial or commercial roofs by the partner company Soprasolar.

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