Rec Solar Pte. Ltd.

Institutt for Energiteknikk

Cenate as

Martin Kirkengen

Erik Sauar

Arve Holt

Hallgeir Klette

Trygve Mongstad

Ornulf Nordseth

Thomas Preston

Jan Petter Maehlen

Asbjorn Ulvestad

Hanne F Andersen

Werner Filtvedt

ØRnulf Nordseth

Jan Petter MÆHLEN

Method for producing a powder comprising particles () comprising amorphous, micro- or nano-crystalline Silicon nitride. The method comprises the steps of supplying a reactant gas () containing Silicon, and a reactant gas () containing Nitrogen, to a reaction chamber () of a reactor (), and heating said reactant gases () to a temperature in the range of 510° C. to 1300° C. which is sufficient for thermal decomposition or reduction of the reactant gases () to take place inside the reaction chamber () to thereby produce a powder of amorphous, micro- or nano-crystalline particles () comprising Silicon nitride (SiNx) in which the atomic ratio of Silicon to Nitrogen is in the range 1:0.2 to 1:0.9. The produced powder of particles () may be used to produce a film, an electrode, such as an anode, for a battery, such as a Lithium ion battery.

Method for producing a silicon nitride powder and battery comprising the powder

A rear contact heterojunction solar cell and a fabricating method. The solar cell comprises a silicon substrate having a passivating layer and an intrinsic amorphous silicon layer. At a back side of the intrinsic amorphous silicon layer, an emitter layer and a base layer are provided. Interposed between these emitter and base layers is a separation layer comprising an electrically insulating material. This separation layer as well as the base layer and emitter layer may be generated by vapor deposition. Due to such processing, adjacent regions of the emitter layer and the separating layer and adjacent regions of the base layer and the separating layer partially laterally overlap in overlapping areas in such a way that at least a part of the separating layer is located closer to the substrate than an overlapping portion of the respective one of the emitter layer and the base layer.

Solar cell and method for producing same

Growing community of inventors

Oslo, Norway

Martin Kirkengen