A method for manufacturing a PV solar cells matrix array (SCMA) of mn PV solar cells that are interconnected both in parallel and and in series. The solar cells are interconnected by a flexible conductor foil, row by row, wherein each pair of adjacent rows of solar cells are conductively interconnected by a single flexible conductor foil. Hence, the SCMA of mn PV solar cells are inter connected by n-\ parallel and series connection conductors, that are preferably solder ready by either high temperature solder or by low temperature solder.

A solar cell module includes an upper substrate, a lower substrate opposite the upper substrate, a solar cell panel positioned between the upper substrate and the lower substrate, the solar cell panel including a plurality of solar cells which are arranged in a matrix form and are connected to one another through a wiring member, a passivation layer configured to package the solar cell panel, a frame configured to surround an outer perimeter of the solar cell panel, a connection terminal configured to connect two adjacent strings in the solar cell panel, and a cover member configured to cover the connection terminal.

The disclosure provides a solar cell and a back contact structure thereof, a photovoltaic module, and a photovoltaic system. The back contact structure includes a first doped region having an opposite polarity to a silicon substrate and a second doped region having a same polarity as the silicon substrate. An isolation region is arranged between the first doped region and the second doped region. The protective region arranged on the first doped region includes an insulation layer and a third doped layer having a same polarity as the second doped region. An opening is provided in the protective region to connect the first conductive layer to the first doped region. In the present invention, scratches caused by belt transmission in an existing cell fabrication process is resolved.

A solar cell module includes: two solar cells, each including: a first main face and a second main face; a first electrode on the first main face, comprising a bus-bar electrode having at least one of an opening portion, notch portion, and gap portion; and a second electrode on the first or second main face having a polarity opposite to that of the first electrode; a wiring member that electrically connects the first electrode of one solar cell to the second electrode of another solar cell; and an electrically conductive connection layer that contacts the wiring member and the first main face.

The present invention relates a photovoltaic module comprising 126, 138 or 150 back-contact half-cells. In an embodiment, the half-cells are divided into 3 groups of each 2 parallel strings with each string containing of the total number of half-cells. The module comprises an additional row of 6 back-contact half-cells, relative to known half-cell modules.

Method of manufacturing a single-side-contacted photovoltaic device (1), comprising the steps of: a) providing a photovoltaically-active substrate (3) defining a plurality of alternating hole collecting zones (3a) and electron collecting zones (3b) arranged in parallel strips; b) depositing a conductive layer (5) across said zones; c) depositing at least one conductive track (9) extending along at least part of each of said zones (3a, 3b); d) selectively forming a dielectric layer (7) on each of said zones (3a, 3b), so as to leave an exposed area free of dielectric at an interface between adjacent zones (3a, 3b); e) etching said conductive layer (5) in said exposed areas; f) applying a plurality of interconnecting conductors (11a, 11b) so as to electrically interconnect at least a portion of said hole collecting zones (3a) with each other, and to electrically interconnect at least a portion of said electron collecting zones (3b) with each other.

Provided is a wire transfer apparatus of a tabbing apparatus. A wire transfer apparatus of a tabbing apparatus according to the present invention includes: a first transfer gripper unit configured to grip a wire; a second transfer gripper unit disposed in parallel to the first transfer gripper unit and configured to grip the wire at a location spaced apart from the first transfer gripper unit together with the first transfer gripper unit; and a gripper transfer unit configured to transfer the wire while moving the first transfer gripper unit and the second transfer gripper unit.

Methods of fabricating solar cells using a metal-containing thermal and diffusion barrier layer in foil-based metallization approaches, and the resulting solar cells, are described. For example, a method of fabricating a solar cell includes forming a plurality of semiconductor regions in or above a substrate. The method also includes forming a metal-containing thermal and diffusion barrier layer above the plurality of semiconductor regions. The method also includes forming a metal seed layer on the metal-containing thermal and diffusion barrier layer. The method also includes forming a metal conductor layer on the metal seed layer. The method also includes laser welding the metal conductor layer to the metal seed layer. The metal-containing thermal and diffusion barrier layer protects the plurality of semiconductor regions during the laser welding.

A photovoltaic interconnect wire includes a conductive base strip with grooves provided thereon, and the grooves are linear and/or curved strip-shaped grooves (3) arranged obliquely to a longitudinal direction of the conductive base strip. An inclination angle of 15 to 75 is present between each linear strip-shaped groove and the longitudinal direction of the conductive base strip, and between a tangent line of any point on the curve of a curved-shaped groove and the longitudinal direction of the conductive base strip. The photovoltaic soldering strip increases an output power of a solar cell assembly by increasing the total reflection proportion. It also ensures soldering fastness by adjusting flat regions of the base strip. Effective cross section loss of the conductive base strip is reduced by adjusting the angle of each groove, so as to minimize the confluence efficiency loss of the soldering strip.

Active or functional additives are embedded into surfaces of host materials for use as components in a variety of electronic or optoelectronic devices, including solar devices, smart windows, displays, and so forth. Resulting surface-embedded device components provide improved performance, as well as cost benefits arising from their compositions and manufacturing processes.