Nukem Limited

Linn High Term Gmbh

Nukem Nuklear Gmbh

Jorg Worner

Gert Hewig

Bernd Schurich

Hans Huschka

Horst Linn

Egbert Brandau

Hans-Werner Schock

Alfred Chrubasik

Klaus Wetteborn

Norbert Lenck

Arnd Gutmann

Wolfgang Theisen

An apparatus for concentrating and solidifying a salt solution includes a vessel for containing the salt solution having an exposed surface, the vessel having a generally open upper portion, a cover for sealing the generally open upper portion of the vessel and having a generally hood shaped portion, the cover including at least one inlet conduit for admitting the salt solution to the vessel and a discharge conduit for vapor, and a magnetron for generating microwaves for heating the solution in the vessel. A microwave waveguide is disposed between the magnetron and the vessel and incorporates the cover, for directing microwaves from the magnetron into the vessel, the waveguide transitioning within the cover from the generally hood shaped portion into a horn having a variable cross-section and/or variable vertical spacing with respect to the vessel. This structure enables microwaves to be radiated directly onto the exposed surface of the salt solution in the vessel.

Apparatus for concentrating salt-containing solutions with microwave

A method and a device for cleaning in particular of oxide substrates is proposed, the substrates being extracted from a quantity of extremely pure water after pre-cleaning. The temperature of the substrate and the extraction velocity from the water are so selected that a water film extending from the water surface runs off evenly.

Device for cleaning in particular of disc-shaped oxide substrates

Disclosed is a method for producing an array of thin-film solar cells so that the individual solar cells are electrically connected in series. Individual solar cells are manufactured by depositing and structuring the layers required by each solar cell on a large-area substrate. According to the invention, a first electrode layer is structured before subsequent layers, including a semiconductive material layer and a second electrode layer, are deposited. Preferably, the structures of the subsequently deposited layers are determined by simultaneously applying material in paste form to the first electrode layer.

Method for producing thin-film solar cells in a series-connected array

A thin film solar cell is proposed, in which the surface of the semiconductor layer (20) facing the front contact (28) is designed as an inversion layer, which can be tunnelled through by the charge carriers electrons and holes.

Photovoltaic cell and method of making same

In order to provide an uncomplicated and economical front surface contact for photovoltaic cells (10) with good current discharge capability and high radiation permeability, the front surface contact (20) is composed of several layer (22, 24, 26) which are essentially unaligned with respect each other. The layers (22, 24, 26) are composed of different materials, which guarantes good ohmic coupling to the light incident semiconductor layer, good collection of free charge carriers in the semiconductor layer, and good discharge of same to a load device.

Photovoltaic cell and method for its fabrication

A contact system for thin film solar cells, which guarantees that charge carrier transport without a barrier layer takes place from the semiconductor layer facing the light source to the front contact in such a manner that, among others, long term negative influences by the front contact on the semiconductor layer will not take place. To this end the front contact is rendered passive against the semiconductor layer by modifying its chemical potential, at least in the actual contact area, to be matched to the chemical potential of the semiconductor layer, or by forming a chemically inert system acting as a reaction barrier between the front contact and the semiconductor layer.

Growing community of inventors

Grosskrotzenburg, Germany

Jorg Worner