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Press releases and news in brief

Here you can find the official press releases of the Institute of Solar Energy Research Hamelin and current news in brief as long as the are published in Englisch. Most of the press releases are issued in German and can be found in the German section of the site ("Aktuelles").


Silicon solar cell of ISFH yields 25% efficiency with passivating POLO contacts

Do. 01 Dez. 2016

The Lower Saxon' Institute for Solar Energy Research Hamelin (ISFH), an affiliated institute of the “Leibniz Universität Hannover” in collaboration with the Institute of Electronic Materials and Devices (MBE) of the “Leibniz Universität Hannover” achieved a solar cell efficiency of 25 %. This high efficiency was achieved with passivating POLO contacts for both polarities, which avoids the otherwise high recombination beneath the metal contacts. The contacts consist of a thin silicon oxide and a doped polycrystalline silicon layer. In the ongoing project the efficiency shall be further increased and complex process steps shall be substituted by industrial relevant processes.


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