Astrium Gmbh

Solarion Ag

Oc3 Ag

Frank Scholze

Horst Neumann

Johann Mueller

Hans Juergen Leiter

Hendrik Zachmann

Karsten Otte

Lutz Pistol

Hans Leiter

Johann Müller

An ion drive for a spacecraft, including a high-frequency generator for generating an alternating electromagnetic field for the ionization of a propellant and an acceleration system for the charge carriers, is provided. The ion drive includes a voltage source with which the high voltages that are necessary for the acceleration system can be derived from the currents and/or voltages generated by the high-frequency generator for generating the alternating electromagnetic field.

Ion drive for a spacecraft

The invention relates to a method and a device for producing a semiconductor layer. The problem addressed is that of increasing the deposition rate of the layer constituents and significantly improving the efficiency of a resulting solar cell. At the same time, the material costs are intended to be reduced. The problem is solved by virtue of the fact that, in a vacuum chamber, metal evaporator sources release Cu, In and/or Ga or the chalcogenide compounds, the latter are focused as metal vapor jets onto the substrate, and Se and/or S emerge(s) in an ionized fashion from a chalcogen low-energy wide-beam ion source and this beam is focused onto the surface of the substrate in such a way that it overlaps the metal vapor jets. A device for carrying out the method is described.

Method and device for producing a semiconductor layer

Growing community of inventors

Brandis, Germany

Frank Scholze