Nukem Limited

Karl G Hackstein

Rudolf Hezel

Hans Huschka

Milan F Hrovat

Lothar Rachor

Thomas Schmidt-Hansberg

A solar cell (10) is proposed, particularly of silicon, having a semiconductive substrate (1) on one side of which an electrical field is provided by, for example, an MIS contact (1, 2, 3) to cause a separation of charge carriers generated by light energy. The minority charge carriers are drawn into the metal (3) of the MIS contact, whereas the majority charge carriers are discharged via ohmic contact zones (4) arranged on the opposite side of the semiconductive substrate. At least one passivation layer (5) is arranged on the semiconductive substrate between the ohmic contact zones, whereby the recombination velocity of the charge carriers in the area of the ohmic contact zones is considerably reduced.

Solar cell

For the longtime fixation of radioactive and toxic waste there are used molded bodies made of graphite with nickel sulfide as a binding agent. The molded bodies show especially good properties if the nickel sulfide is in the form of Ni.sub.3 S.sub.2.

Growing community of inventors

Hanau, Germany

Karl G Hackstein