Patents by Inventor Karlheinz Jager

Karlheinz Jager has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5304499
    Abstract: A method of making pn CdTe/CdS thin film solar cells, in which a transparent TCO layer is deposited as a front contact on a transparent substrate in the form of inexpensive soda-lime glass, and is preferably provided with an ultra-thin indium layer, which is in turn coated with the CdS layer, wherein the thus coated substrate is brought to the CdTe coating at a temperature between 480.degree. C. and 520.degree. C., which is maintained during the ensuing rapid CdTe deposition using the close-spaced sublimation method with a preferred rate of deposition of 5 to 15 .mu.m/min in an inert atmosphere. The indium layer dissolves during this deposition and effects the necessary n-doping of the CdS layer, without an additional method step. Solar cells can be made in this way with high efficiency in an inexpensive method, suitable for mass production.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: April 19, 1994
    Assignee: Battelle-Institut e.V.
    Inventors: Dieter Bonnet, Beate Henrichs, Karlheinz Jager, Hilmar Richter
  • Patent number: 4495375
    Abstract: The function of the insulating film in MIS and SIS solar cells can also be fulfilled by a semiconductor with a sufficiently large energy gap. The doping of the quasi insulating layer guarantees good fill factors and short-circuit current densities also at a relatively high film thickness. For cadmium selenide solar cells with a quasi insulating film made of zinc selenide, copper is preferably used as a doping material.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: January 22, 1985
    Assignee: Battelle-Institut e.V.
    Inventors: Edmund Rickus, Karlheinz Jager