Abstract: An interconnection element extending along a first direction, the interconnection element including first and second ends opposite to each other, and first, second and third portions extending between the first and second ends, the first portion having a first planar surface oriented along a second direction perpendicular to the first direction, the second portion, distant from the first portion and from the second end the second portion having a second planar surface oriented along the second direction, and the third portion, between the first portion and the second portion, and having a circular cross-section.

Abstract: A photovoltaic string includes a plurality of photovoltaic shingle and a metallic connector; the shingle being glued in pairs, forming a plurality of overlapping surfaces, each overlapping surface having an overlap width, the metallic connector being glued or welded to an end shingle forming a transfer surface, the transfer surface having a transfer width greater than or equal to each of the overlap widths, the active surface of the end shingle preferably being greater than or equal to the active surface of an intermediate shingle.

Abstract: A photovoltaic cell includes an edge; an interconnection conductive track extending parallel to the edge to within 1.3 mm; and a plurality of electrodes, called “collection fingers”, extending parallel to each other and electrically connected to the interconnection track; the interconnection conductive track including a plurality of spaced-apart closed-contour conductive patterns, each closed-contour conductive pattern including a closed contour surrounding a portion of the first face.

Abstract: A photovoltaic cell includes a front face intended to be exposed to an incident radiation and a rear face opposite to the front face, the front face having a plurality of electrodes parallel with each other and forming collection fingers; an interconnection conductive track of width greater than the width of the collection fingers, extending parallel to an edge of the photovoltaic cell at less than 2 mm from the edge of the photovoltaic cell, the collection fingers being oriented with respect to the interconnection conductive track by an angle comprised between ?65° and 65°; and wherein a part at least of the collection fingers are interconnected by connection elements in the form of wires or ribbons arranged on the front face.

Abstract: Photovoltaic device includes a wafer, wherein it comprises a plurality of discontinuous first conductors oriented in a first direction, which conductors are interrupted in interconnection zones, and in that at least one second conductor electrically connects the first conductors to one another in the interconnection zones, and in that it includes at least one metal strip or braid fastened to at least one electrical conductor, this at least one metal strip or braid including fastening zones in which it is mechanically and electrically connected to an electrical conductor and non-connected zones in which the metal strip or braid is not mechanically fastened to an electrical conductor.

Abstract: Screen-printing system comprising a metal stencil (12), and a cloth (15) fixed to the entire periphery of said metal stencil (12) to form a trampoline assembly, characterized in that the cloth (15) fixed to the metal stencil (12) has at least one free end, in order to decrease or prevent deformation under the effect of a doctor blade (20).

Abstract: The invention concerns an organic light-emitting diode comprising a lower electrode (2) and an upper electrode (8), an electroluminescent organic layer (5), and at least one doped organic layer (3; 7) in contact with one of said electrodes. The invention is characterized in that the doping is carried out using an alkaline-earth element or lanthanide, and the diode is heat-treated at temperature preferably not less than 60° C. for more than one hour. The invention enables the lighting performance of the diode to be considerably improved.

Abstract: A method for producing a photovoltaic cell including the following successive steps: i) providing a substrate including a p/n photovoltaic junction, successively covered by a transparent conductive oxide layer, a first layer made from electrically insulating material and a second layer made from metallic material; ii) performing localised heat treatment by laser irradiation under conditions enabling the electrically insulating material and the metallic material to be made to react locally to form a seed layer, made from a metal-charged glassy compound, the seed layer being electrically connected to the p/n junction by way of the transparent conductive oxide layer; iii) performing removal of the second layer of metallic material; iv) performing formation of an electric contact on the seed layer by electrochemical deposition.

Abstract: A method for forming a photovoltaic cell including a stack of at least two semi-conducting layers doped according to opposite types of conductivity, the method including a) forming first patterns made of a first conducting material by printing on at least one of faces of the stack; b) forming second patterns made of an insulating material by printing on the at least one of the faces of the stack, such that the insulating material is in contact with at least one part of lateral surfaces of the first patterns and such that thickness of the second patterns is less than that of the first patterns; and c) forming at least one second conducting material by electrolytic deposition on at least the first patterns.

Abstract: A photovoltaic module has cells each having at least one collecting finger (2) oriented in a first elongation direction (D1) and at least one bus (3) oriented in a second elongation direction (D2) making at an angle to the first. At a zone (4) of electrical connection between the bus (3) and the collecting finger (2), the bus has at least one local enlargement (Le) of its width (Lb) along the first direction (D1). The ratio of the length (We) in the second direction (D2) of the local enlargement (Le) of the width (Lb) of the bus (3) to the width (Wd) of the corresponding collecting finger (2) in the second direction (D2) is strictly higher than one. The total width (Lt) of the bus at a local enlargement (Le) is strictly larger than the width (Lr) along the first direction of a metal strip (5) that electrically connects the cells.

Abstract: Method for printing on a wafer (1) by screen-printing, characterized in that it comprises the following steps: producing at least two first test-patterns (5a-5d) on the surface (4) of the wafer (1); printing at least four second test-patterns (6a-6d), distinct from the at least two first test-patterns (5a-5d), during printing on the surface (4) of the wafer (1) by screen-printing; measuring the actual distance obtained on the surface (4) of the wafer (1) between the first test-patterns (5a-5d) and the second test-patterns (6a-6d); comparing this actual distance with a theoretical distance in order to deduce therefrom the offset of the screen-printing screen (25) of the printing.

Abstract: Stencil for a screen-printing system, comprising slits (22, 23) in a central printing zone (13), forming a pattern to be printed, characterized in that it comprises one or more apertures (32) in a peripheral deforming zone (14), which apertures are intended to cause this peripheral deforming zone (14) to deform under the effect of a stress applied to the stencil while reducing deformation of the central printing one (13).

Abstract: Screen-printing system comprising a metal stencil (12), and a cloth (15) fixed to the entire periphery of said metal stencil (12) to form a trampoline assembly, characterized in that the cloth (15) fixed to the metal stencil (12) has at least one free end, in order to decrease or prevent deformation under the effect of a doctor blade (20).

Abstract: A photovoltaic device which includes: a) a substrate based on a crystalline semi-conductor material; b) a first electrode which includes at least one heterojunction made on one face, referred to as the rear face, of the substrate, where this heterojunction includes a layer based on a doped amorphous semi-conductor material; and c) a second electrode. The first and second electrodes are arranged on the rear face of the substrate according to an interdigitated combs design, and where the layer includes multiple portions of the doped amorphous semi-conductor material which are unconnected and spaced apart from each other.

Abstract: Stencil for a screen-printing system, comprising slits (22, 23) in a central printing zone (13), forming a pattern to be printed, characterized in that it comprises one or more apertures (32) in a peripheral deforming zone (14), which apertures are intended to cause this peripheral deforming zone (14) to deform under the effect of a stress applied to the stencil while reducing deformation of the central printing one (13).

Abstract: The present invention relates to a method for forming, on the surface of one of the sides of a silicon substrate, a fibrous layer having a mean lattice pitch of no more than 2 ?m, without requiring soaking. The invention also relates to devices, in particular photovoltaic cells, comprising a silicon substrate produced by means of such a method.

Abstract: Photovoltaic device includes a wafer, wherein it comprises a plurality of discontinuous first conductors oriented in a first direction, which conductors are interrupted in interconnection zones, and in that at least one second conductor electrically connects the first conductors to one another in the interconnection zones, and in that it includes at least one metal strip or braid fastened to at least one electrical conductor, this at least one metal strip or braid including fastening zones in which it is mechanically and electrically connected to an electrical conductor and non-connected zones in which the metal strip or braid is not mechanically fastened to an electrical conductor.

Abstract: Method for formation of at least one electrical conductor on a semiconductor material (1), characterized in that it comprises the following steps: (E1)—deposition by serigraphy of a first high-temperature paste; (E2)—deposition by serigraphy of a second low-temperature paste at least partially superposed onto the first high-temperature paste deposited during the preceding step.

Abstract: An organic light-emitting diode comprising a substrate, an organic light-emitting layer arranged between a first electrode and a transparent and semi-reflecting second electrode with a multilayer structure subdivided into: a first silver-based metallic layer in contact with the organic light-emitting layer, a second aluminum-based metallic layer, and a third dielectric layer, wherein the second metallic layer is inserted between the first metallic layer and the third dielectric layer of the transparent second electrode, the organic light-emitting layer comprises a doped sub-layer in contact with the first metallic layer of the transparent second electrode, and the thickness of the third dielectric layer is adjusted to limit the absorption by the first and second metallic layers of the light emitted by the diode.

Abstract: A metallization device configured to metallize a semiconductor device, including: a closed enclosure of variable volume configured to contain a metallization paste, a screen for screen printing forming a wall of the enclosure integral with the other walls of the enclosure, configured to be in contact with the semiconductor device during its metallization, and a mechanism applying uniform pressure over a mobile sealed wall of the enclosure opposite to the wall formed by the printing screen and reducing the volume of the enclosure. The volume reduction of the enclosure is configured to cause the metallization paste to uniformly pass through the printing screen.