Disclosed is a method for attaching an interconnector of a solar cell panel, including moving the interconnector, unwound from a winding roll, in a processing direction, and attaching the interconnector to a solar cell. In the moving, the interconnector, which is wound around the winding roll, is unwound so as to pass through one end of the winding roll in a longitudinal direction.

An optoelectronic device including at least one of a solar device, a semiconductor device, and an electronic device. The device includes a semiconductor unit. A plurality of metal fingers is disposed on a surface of the semiconductor unit for electrical conduction. Each of the metal fingers includes a pad area for forming an electrical contact. The optoelectronic device includes a plurality of pad areas that is available for connection to a bus bar, wherein each of the metal fingers is connected to a corresponding pad area for forming an electrical contact.

Apparatus for the industrial wiring and final testing of photovoltaic concentrator modules, consisting of a module frame, a lens disc, a sensor carrier disc and an electrical line routing arrangement, comprising the following features: a) a laser contact-making device for the contactless connection of connecting lines between the individual sensors and of connecting elements and of collective contact plates, wherein the line routing arrangement on the sensor carrier disc as basic structure has, in each case, five CPV sensors connected in parallel, and these parallel circuits are connected in series, b) a device for testing electrical properties, wherein a specific voltage is applied to CPV sensors themselves, and the light emitted by them via the lenses is detected and assessed, c) a device for testing tightness of finished concentrator modules, wherein compressed air is applied to the modules in the interior and the emission of compressed air is checked.

An improved method for interconnecting thin film solar cells to form solar cell modules is provided, the method comprising using a flat metallic mesh formed from a thin metallic strip to provide a current collection grid over a thin film solar cell. The method is particularly useful for forming interconnections between thin film solar cells deposited on flexible substrates. The rectangular cross sectional shape of the mesh elements provides an increased area of electrical contact to the solar cell compared to the small tangential area provided by elements of circular cross section. Mesh elements can be made higher rather than wider to improve conductivity without proportionally increasing shading loss. Various coatings can be applied to the mesh to improve its performance, provide corrosion resistance, and improve its cosmetic appearance.

Methods and apparatus for manufacturing a conductive thin film are provided. In one arrangement, compositions of nanowires having different mean aspect ratios are mixed together and applied as a layer on a substrate. In other arrangements a single composition of nanowires is processed in order to increase an aspect ratio variance and the processed composition is applied as a layer on a substrate. The layers thus applied provide an improved balance of electrical conductivity to transparency and are expected to provide improved isotropy in the inplane conductivity.

Disclosed is a method for attaching an interconnector of a solar cell panel. The method includes forming a first interconnector-jig coupling by fixing a plurality of first interconnectors to a jig, locating the first interconnector-jig coupling over a working table, fixing the first interconnectors and a first solar cell to each other, separating the jig from the first interconnectors, and attaching the first interconnectors to the first solar cell by applying heat to the first interconnectors and the first solar cell, which are thereby fixed to each other.

A flexible solar module strand manufactured by a method including providing a first conveyor track for applying flexible solar cells; guiding the first conveyor track around two or more deflecting means; providing individual flexible solar cells; applying the individual solar cells to the first conveyor track; deflecting the first conveyor track by guiding the first conveyor track over a first one of the deflecting means; separating the first conveyor track from the at least one deflected solar cell strip in such a manner that the solar cells are released, with their respective first or second sides facing the first conveyor track, from the first conveyor track; and applying the at least one deflected solar cell strip to a first film web in such a manner that the solar cells are oriented, with their respective first or second sides separated from the first conveyor track, away from the first film web.

Embodiments of the present disclosure provide a solar cell string, a solar cell module, a manufacturing apparatus and a manufacturing method thereof. The solar cell string includes at least two solar cells including first and second solar cells adjacent to each other; front and back surfaces of each of the at least two solar cells are respectively provided with a grid line, and the grid line on the front surface is connected with the grid line on the back surface by a solder strip, the first and second solar cells have an overlapping region, and the overlapping region is provided with a buffer pad covering at least one side surface of the solder strip located in the overlapping region, and the buffer pad is formed by a pad which is pre-arranged in the overlapping region and melted at high temperature.

A PV module is formed having an array of PV cells, where the cells are separated by gaps. Each cell contains an array of small silicon sphere diodes (10-300 microns in diameter) connected in parallel. The diodes and conductor layers may be patterned by printing. A continuous metal substrate supports the diodes and conductor layers in all the cells. A dielectric substrate is laminated to the metal substrate. Trenches are then formed by laser ablation around the cells to sever the metal substrate to form electrically isolated PV cells. A metallization step is then performed to connect the cells in series to increase the voltage output of the PV module. An electrically isolated bypass diode for each cell is also formed by the trenching step. The metallization step connects the bypass diode and its associated cell in a reverse-parallel relationship.

A string-forming system is described. The string-forming system may include at least a first cell-lifting mechanism and a second cell-lifting mechanism that can automatically arrange a set of strips of a photovoltaic structure into a cascaded formation. During operation, a controller can cause the first cell-lifting mechanism to lift a first strip from a first platform, and can cause the second cell-lifting mechanism to lift, from the first platform, a second strip that may follow the first strip on the first platform. The controller may then activate a first shifting actuator of the first cell-lifting mechanism or a second shifting actuator of the second cell-lifting mechanism to place a leading edge of the second strip above a trailing edge of the first strip.