Micronas Gmbh

Micronas Holding Gmbh

Albert-ludwigs-universitat Freiburg

Leibniz-institut Fur Neue Materialien Gemeinnutzige Gmbh

Claas Müller

Reinhold Schwalm

Mirko Lehmann

Holger Klapproth

Ulrich K Sieben

Jochen Kerres

Yiannos Manoli

Dieter Urban

Peter William De Oliveira

Ingo Freund

Eduard Arzt

Gilbert Alexander Erdler

Holger Reinecke

Mirko Frank

Matthias Kuhl

Benedikt Bläsi

Elmar Kroner

Hannes Spiecker

Florian BÜSCH

Ebru Devrim Sam Parmak

Michael Nitsche

Mirko Dipl-Ing Frank

Gilbert Dipl-Ing Erdler

A resistive hydrogen sensor has at least two electrical connections and at least one resistance layer containing at least one suitable material for incorporating hydrogen, via which the electrical connections are connected to each other. The resistance layer adjoins at least one interface on a contact layer, which contains at least one chemical element from the fourth subgroup of the periodic table and/or carbon. The contact layer connected in series between the electrical connections to the resistance layer.

Resistive hydrogen sensor

The present invention pertains to a fuel cell with a storage unit () for storing hydrogen (H), with a proton conductive layer, which covers a surface of the storage unit (), and with a cathode () on a side of the proton conductive layer, which side is located opposite, wherein the storage unit () is directly coupled with an anode and/or the storage unit () is incorporated in a substrate () of a semiconductor. The storage unit () is preferably connected to the substrate () at least via a stress compensation layer ().

Fuel cell and process for manufacturing a fuel cell

A voltage supply has a plurality of voltage sources to supply output connections. To achieve closed-loop control of the output voltage at the output connections, a closed-loop control circuit is provided that has an actuating element for each voltage source, and each respective actuating element has a current path via which a connection of the respective voltage source can be connected to an output connection. Each actuating element has an actuating signal input for setting the electrical conductivity of its current path. The closed-loop control circuit has a closed-loop controller to which the output voltage and a desired voltage signal are supplied. When a deviation occurs between the output voltage and the desired voltage signal, the closed-loop controller interacts with at least one actuating signal input in order to reduce the deviation. The actuating signal inputs are connected to a control device that is designed in such a way, that the current path of at least one actuating element is enabled for control by the closed-loop controller if the output current that is drawn at the output connections is present in a predetermined value range assigned to the respective actuating element, and the current path is disabled if the output current that is drawn at the output connections does not lie in the predetermined value range.

Electrical voltage supply

Disclosed is a device for detecting at least one ligand contained in a sample that is to be analyzed. Said device comprises an optical waveguide, on the surface of which at least one ligand-specific receptor is directly or indirectly immobilized. The ligand bonds to said receptor during contact therewith. The inventive device comprises at least one optical source of radiation for injecting excitation radiation into the waveguide, the radiation being used for exciting emission of luminescence radiation in accordance with the bonding of the ligand to the receptor. At least one radiation receiver is integrated into the semiconductor substrate of a semiconductor chip so as to detect the luminescence radiation. The waveguide is integrated in a monolithic manner into the semiconductor substrate or is applied thereupon as a wave-guiding layer.

Device for the detection of at least one ligand contained in a sample that is to be analyzed

Growing community of inventors

Freiburg, Germany

Claas Müller