A wire bonding system attaches wires to a solar cell wafer. The wire bonding system includes a feed tube through which a wire is drawn. Rollers contact the wire through openings in the feed tube to facilitate movement of the wire. The wire bonding system includes a soldering heater tip and a wire cutter. The solar cell wafer is placed on a platform, which moves the solar cell wafer. The system has multiple lanes for attaching multiple wires to the solar cell wafer at the same time in parallel operations.

Local metallization of semiconductor substrates using a laser beam, and the resulting structures, e.g., micro-electronic devices, semiconductor substrates and/or solar cells, are described. For example, a solar cell includes a substrate and a plurality of semiconductor regions disposed in or above the substrate. A plurality of conductive contact structures is electrically connected to the plurality of semiconductor regions. Each conductive contact structure includes a locally deposited metal portion disposed in contact with a corresponding a semiconductor region.

Local patterning and metallization of semiconductor structures using a laser beam, e.g., micro-electronic devices, semiconductor substrates and/or solar cells, are described. For example, a method of fabricating a solar cell includes providing a substrate having an intervening layer thereon. The method also includes locating a metal foil over the intervening layer. The method also includes exposing the metal foil to a laser beam, wherein exposing the metal foil to the laser beam forms openings in the intervening layer and forms a plurality of conductive contact structures electrically connected to portions of the substrate exposed by the openings.

A method for manufacturing a solar cell string includes: providing a first adhesive layer, wherein the first adhesive layer includes N placement regions being used for N solar cells respectively; placing the N solar cells on the placement regions; laying first wires on a surface of at least one solar cell away from the first adhesive layer, and stretching the first wires across adjacent placement regions to electrically connect two adjacent solar cells; disposing a second adhesive layer on the surface of the at least one solar cell of the N solar cells away from the first adhesive layer, wherein the first wires are located between the second adhesive layer and the at least one solar cell; performing a pressing treatment to bond and fix the first adhesive layer, the first wires, the at least one solar cell of the N solar cells and the second adhesive layer.

Device for generating energy from ambient light A device for generating energy from ambient light, particularly sunlight, comprises a transparent panel (15, 16) having frontally a lateral entry surface (A) for ambient light and having laterally an exit surface which is optically coupled to a photovoltaic conversion device (250). An optically active photoluminescent structure (18) is arranged downstream of the entry surface, which is able and configured to emit emission radiation upon excitation by radiation incident thereon. The emission radiation propagates partially via the panel (15, 16) to the exit surface (U) and to the conversion device. The conversion device comprises an associated array of mechanically interconnected photovoltaic modules (200), each comprising one or more photovoltaic cells. The modules (200) are electrically connected between a first conductor (210) on an optically active frontal side and a second conductor (220) on an opposite, back side. Successive modules in the array overlap each other such that a first conductor of one module and a second conductor of a subsequent module make contact with each other.

The present invention relates to a colored tandem solar cell module, and more particularly, a high-efficiency thin-film colored tandem solar cell module which does not require separate photocurrent matching, implements a color without a separate color filter, and generates power with high efficiency. According to the present invention, it is possible to provide a colored tandem solar cell module including solar cells, which each include a bottom electrode having an inverse diode structure formed by sequentially stacking a first electrode, a first semiconductor layer, a second semiconductor layer, and a second electrode on a substrate, a light absorption layer formed on the bottom electrode, and a top electrode formed on the light absorption layer, thereby eliminating the need for photocurrent matching, implementing a color without a separate color filter, and improving efficiency.

A method for manufacturing a photovoltaic (PV) module includes: using a stringer to simultaneously solder at least two cell strings, and soldering an interconnecting bar at a predetermined position; performing electroluminescence (EL) inspection and appearance inspection/photoluminescence (PL) inspection on cells in the at least two cell strings to obtain cell images and cell inspection results; automatically soldering bus bars at heads and tails of the cell strings; placing the cell modules on front plate glass in sequence, and marking a suspicious cell; when a cell that needs to be repaired exists in the cell modules, sending a repair instruction, and delivering the front plate glass of carrying the cell modules to a repair workstation; at a stacking workstation, soldering together bus bars at tails of two adjacent cell modules; and performing EL inspection and appearance inspection/PL inspection.

A solar cell array comprised of one or more solar cells attached to a substrate, such as a pre-fabricated flex circuit, wherein: the substrate includes one or more insulating layers and one or more conductive layers patterned as one or more conductors for making electrical connections with the solar cells; and the substrate includes one or more decision points for removing or adding electrical continuity to the conductors, for customizing circuits of the solar cells to a desired dimension of the solar cells and a desired output voltage.

An embodiment of the present disclosure provides an encapsulant film and a manufacturing method thereof, and a solar cell module and a manufacturing method thereof. the encapsulant film is configured for a solar cell module, the solar cell module includes a plurality of welding strips, the encapsulant film includes a first region, an orthogonal projection of the first region on a surface where the solar cell module is located overlaps at least partially an orthogonal projection of at least one of the plurality of welding strips, and a film thickness of the first region is different from a film thickness of an other region of the encapsulant film. The solar cell module using the encapsulant film can reduce the amount of encapsulant used and fully protect the welding strip.

Embodiments of the present disclosure provide a solar cell module and a manufacturing method thereof. The manufacturing method includes: providing a solar cell string; arranging welding strips on a back surface of the solar cell string; arranging a first encapsulant material on a back surface of the welding strip, to form a first encapsulant material layer; on the back surface of the solar cell string, arranging a second encapsulant material in a local region corresponding to at least one welding strip, to form a second encapsulant material layer; and laminating to form a laminate member. The manufacturing method can reduce the thickness of the encapsulant film on the back surface of the solar cell, and reduce the distance between the back plate material and the solar cell string, and is capable to fully protect the welding strip.