Meyer Burger (germany) Gmbh

Pasan Sa

Meyer Burger (switzerland) Ag

Meyer Burger Ag

Meyer Burger Gmbh

Pierre Papet

Hans-Peter Sperlich

Benjamin Strahm

Marcel Koenig

Rainer Grischke

Damien Lachenal

Derk Bätzner

Gunnar Köhler

Boris Legradic

Gunnar Koehler

Marcel König

Till Kössler

Giuseppe Citarella

Frank Wuensch

Charles Clerc

Emanuel Neto

Detlef Sontag

Patrick Volluz

Derk Baetzner

Walter Frammelsberger

Pierre-Rene Beljean

Heiko Mehlich

Bas Albers

Frank Wünsch

Mirko Mehlich

Jérôme Meixenberger

Pierre-René Beljean

Disclosed is a method to fabricate an interdigitated back contact photovoltaic device including: providing a substrate of a first-type doping being an n-type or a p-type doping; realizing on a back side a semiconducting doped structure including individual doped layers portions of the first type doping and a semiconducting doped structure of a second type; realizing a conductive layer on top of the semiconducting structure; realizing a patterned isolation resist layer having contact apertures and isolation apertures onto the conductive layer; further applying conductive pads to the contact apertures; and etching the conductive layer up to the second-type doped layer to realize trenches to electrically separate first type charge collecting structures from second type charge collecting structures. Also disclosed is an interdigitated back contact photovoltaic device as manufactured according to the disclosed method of fabrication, and a photovoltaic system including at least two interdigitated back contact photovoltaic devices.

Photovoltaic device and method for manufacturing the same

The present invention is directed to solar cell strings () for photovoltaic modules comprising (i) a string of solar cells () facing each other in opposite polarity and shingled in string direction with or without partial overlap of solar cells (); (ii) at least one elongated electrically conducting interconnect () extending in string direction from one side of one solar cell to the opposite side of the next solar cell () for mechanically and electrically connecting the positive and negative electrodes of the shingled solar cells () in string direction on the alternating top and bottom sides of the solar cells, and (iii) at least two adhesives, optionally thermoadhesive foils () covering the at least one elongated interconnect () and at least part of the top or bottom side of each solar cell that comprises the elongated interconnect, with the proviso that (a) there is no horizontal gap between shingled solar cells, (b) the adhesives () do not contact each other, do not extend beyond one solar cell, do not extend into the optional partial overlap of solar cells (), and at least partially cover and mechanically fixate the at least one interconnect () to the solar cells ().

Solar cell string for use in a photovoltaic module

A solar cell with a heterojunction is produced. A first amorphous nano- and/or microcrystalline semiconductor layer is formed on the front face of a crystalline semiconductor substrate to form front face emitter or a front face surface field layer. A second such layer is formed on the rear face of the substrate to form a rear face surface field layer or a rear face emitter. Electrically conductive, transparent front face and rear face electrode layers and a frontal metallic contact layer grid structure are formed. Surface selective frontal PECVD deposition forms an electrically non-conductive, transparent dielectric front face cover layer and with such a thickness to form a closed layer directly on deposition, without additional heat and/or chemical treatment, only on the areas surrounding the frontal contact layer grid structure but not on the frontal contact layer grid structure. Finally, a rear face metallization is formed.

Method for producing a solar cell, solar cell produced by this method and substrate carrier

The invention relates to a testing device for testing a photovoltaic device having an electrical contact area, the testing device comprising: a support base for supporting the photovoltaic device, the support base having a support surface for receiving the photovoltaic device, a measurement device, at least one electrical wire for temporarily establishing an electrical contact between the measurement device and an electrical contact area of the photovoltaic device, the electrical wire is a flexible wire being electrically conductive and arranged to receive the photovoltaic device between the support surface and the flexible wire, at least a portion of the flexible wire abuttingly adapts along its longitudinal extension against the electrical contact area of the photovoltaic device when the photovoltaic device is received by the support surface.

Testing device

Growing community of inventors

Hauterive, Switzerland

Pierre Papet