News (photovoltaics)

The HeliaFilm façade at ENGIE (photo: Heliatek)

Solar films manufactured by the German company Heliatek (Dresden) have been installed on ENGIE Laborelec’s building in Linkebeek, Belgium. The HeliaFilm organic films have been incorporated into the façade and windows and will enable the testing of new solar technology systems.


The President of the Saxon parliament, Dr Matthias Rößler, received the EU Commissioner for budget and personnel, Günther H. Oettinger in Dresden. Together they visited Heliatek and got a view of the production facility. Dr Martin Pfeiffer, one of the Founders, and Dr Ralph Wichtendahl, vice Ppresident operations, shared the latest information on technical and sales developments of the company.

Back-side view of the solar cells (here on a larger wafers) with positive and negative contact. Front-side view without any shadowing contact (Photo: CSEM)

A team of EPFL and CSEM researchers in Neuchâtel, Switzerland, presents in Nature Energy a new astonishing method of creating crystalline solar cells with electrical contacts at the rear, suppressing all shadowing at the front. Thanks to the new inexpensive approach, the fabrication process is strongly simplified with efficiencies in the laboratory already surpassing 23%.

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