Stock Photo - Germany, Gelsenkirchen, The Laboratory and Service Center (LSC) of the Fraunhofer Institute for Solar Energy Systems. With a silver paste the wafer front and back of the contacts may be printed. - GELSENKIRCHEN, GERMANY, 26/06/2013

Stock Photo: Germany, Gelsenkirchen, The Laboratory and Service Center (LSC) of the Fraunhofer Institute for Solar Energy Systems. With a silver paste the wafer front and.

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