The disclosure illustrates a ribbon like photovoltaic cell that is formed by first applying a thin layer of tungsten or other conductive, temperature resistant material on a base ribbon of high temperature resistant, and electrically non-conductive material. A thin coat of silicon up to several atoms...http://www.google.es/patents/US4383130?utm_source=gb-gplus-sharePatente US4383130 - Solar energy cell and method of manufacture
