Abstract: 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.

Abstract: A photovoltaic device comprises a PIN structure in which a p-type hole transporting layer (2) is carried by a substrate (1) and a perovskite layer (3) and an n-type electron transporting layer (4) are arranged in sequence on the p-type layer. A light transmissive electrically conductive layer (9) is provided on top of the n-type electron transporting layer to form a light receiving top surface. Between the n-type electron transporting layer and the light transmissive conductive layer there is provided a structure comprising two inorganic electrically insulative layers (6, 8) having a layer of a conductive material (7) therebetween, wherein the two inorganic electrically insulative layers comprise a material having a band gap of greater than 4.5 eV and the layer of a conductive material comprises a material having a band gap of less than the band gap of the electrically insulative layers, wherein each electrically insulative layer forms a type-1 offset junction with the layer of conductive material.

Abstract: The present disclosure provides a perovskite solar cell comprising at least an electrode, an electron transport layer, a hole transport layer, a perovskite layer and a passivation layer. In the perovskite solar cell, the passivation layer may contain a passivator, the passivatormay comprise an aza fused bicyclic compound and/or an organic salt formed from the aza fused bicyclic compound and an acid, each fused ring in the aza fused bicyclic compound may be independently a five-membered or six-membered saturated ring, unsaturated ring or aromatic ring, the fused ring of the aza fused bicyclic compound may contain 1-5 nitrogen atoms, and the fused ring may be an unsubstituted ring or a ring substituted with one or two substituents having 1-3 carbon atoms.

Abstract: Embodiments of the present disclosure provide a solar cell and a solar cell module. The solar cell includes a first region and a second region, and further includes a substrate having a first surface and a second surface; a tunneling layer covering the second surface; a first emitter formed on part of the tunneling layer in the first region; and a second emitter formed on part of the tunneling layer in the second region and on the first emitter, a conductivity type of the second emitter being different from a conductivity type of the first emitter. The solar cell further includes a first electrode configured to electrically connect with the first emitter by penetrating through the second emitter; and a second electrode formed in the second region and configured to electrically connect with the second emitter.

Abstract: A photovoltaic, PV, module includes plural PV sections, each PV section including plural lamellas. A first lamella of the plural lamellas includes a back sheet, a first encapsulant material, a PV cell, a foldable material, a second encapsulant material, and a front sheet. The first encapsulant material bonds the PV cell to the back sheet, and the second encapsulant material bonds the PV cell to the front sheet. A first edge of the foldable material is sandwiched between the first and second encapsulant materials of the first lamella and a second edge of the foldable material is sandwiched between corresponding first and second encapsulant materials of a second lamella of the plural lamellas.

Abstract: Embodiments of the present disclosure provide a solar cell and a solar cell module. The solar cell includes a first region and a second region, and further includes a substrate having a first surface and a second surface; a tunneling layer covering the second surface; a first emitter formed on part of the tunneling layer in the first region; and a second emitter formed on part of the tunneling layer in the second region and on the first emitter, a conductivity type of the second emitter being different from a conductivity type of the first emitter. The solar cell further includes a first electrode configured to electrically connect with the first emitter by penetrating through the second emitter; and a second electrode formed in the second region and configured to electrically connect with the second emitter.

Abstract: In order to satisfy the demand of consumers regarding design attractiveness, an infrared-light-transmitting dark color ink is provided, the ink having a black appearance and attaining high design attractiveness and, despite this, having sufficient infrared-light-transmitting property. The infrared-light-transmitting dark color ink transmits near infrared light having wavelengths of 750-1,500 nm, and comprises a resin component and a pigment component that comprises both a brown pigment, e.g., a benzimidazolone pigment, and a phthalocyanine pigment.

Abstract: A bypass diode assembly includes a plurality of diodes and a plurality of interconnects coupled to the plurality of diodes. Functionality of the plurality of diodes to prevent current limiting of a solar cell string that the bypass diode assembly is coupled to is not dependent on back metal of solar cells of the solar cell string. Each interconnect includes one or more relief features. A first terminal of a first diode of the plurality of diodes is physically and electrically coupled directly to a first end of a first interconnect of the plurality of interconnects. A second terminal of a second diode of the plurality of diodes is physically and electrically coupled directly to a second end of the first interconnect. Also, a first end of a second interconnect of the plurality of interconnects is physically and electrically coupled directly to a first terminal of the second diode.

Abstract: An object of the present invention is to provide a compound that is useful as a hole transport material for providing a device for converting light into electricity that is capable of extracting current with high efficiency, and a device for converting light into electricity and a solar cell that include the compound in a hole transport layer and have favorable light/electricity conversion characteristics. The present invention provides a compound represented by the general formula (1) below. In the formula, R1 to R20 each represent a hydrogen atom, an alkoxy group having 1 to 20 carbon atoms, or the like, and Y represents an oxygen atom or CR21R22, where R21 and R22 each represent a nitrile group, an acyl group having 1 to 10 carbon atoms, or the like.

Abstract: Embodiments of the present disclosure provide a solar cell and a solar cell module. The solar cell includes a first region and a second region, and further includes a substrate having a first surface and a second surface; a tunneling layer covering the second surface; a first emitter formed on part of the tunneling layer in the first region; and a second emitter formed on part of the tunneling layer in the second region and on the first emitter, a conductivity type of the second emitter being different from a conductivity type of the first emitter. The solar cell further includes a first electrode configured to electrically connect with the first emitter by penetrating through the second emitter; and a second electrode formed in the second region and configured to electrically connect with the second emitter.

Abstract: 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.

Abstract: According to the embodiments provided herein, a method for forming a photovoltaic device can include depositing a plurality of semiconductor layers. The plurality of semiconductor layers can include a doped layer that is doped with a group V dopant. The doped layer can include cadmium selenide or cadmium telluride. The method can include annealing the plurality of semiconductor layers to form an absorber layer.

Abstract: An exemplary transparent tandem organic solar cell comprises a transparent substrate; a first transparent electrode disposed on a surface of the transparent substrate; and a series of interconnecting organic active layers disposed on a surface of the first transparent electrode. The series of organic interconnecting active layers comprise at least a front sub-cell that blocks ultraviolet wavelengths from passing through the front sub-cell; and a back sub-cell that blocks infrared wavelengths from passing through the back sub-cell. The solar cell further comprises a distributed Bragg reflector disposed on a surface of the back sub-cell, wherein the distributed Bragg reflector reflects unblocked infrared photons at an interface between the back sub-cell and the distributed Bragg reflector.

Abstract: A water producing system for a photovoltaic panel may include a moisture collection layer, a liquid transfer mat, and a moisture collection substrate. The moisture collection layer may collect moisture from condensation and direct moisture away from the photovoltaic panel. The liquid transfer mat may include a plurality of tubes through which a chilled heat transfer liquid passes. The moisture collection substrate may include a thermally conductive material. The chilled heat transfer liquid within the liquid transfer mat may absorb heat from the photovoltaic panel and from ambient air through the moisture collection substrate, thereby reducing a temperature of the photovoltaic panel and condensing water on the moisture collection substrate to produce water.

Abstract: A solar cell, and methods of fabricating said solar cell, are disclosed. The solar cell can include a first emitter region over a substrate, the first emitter region having a perimeter around a portion of the substrate. A first conductive contact is electrically coupled to the first emitter region at a location outside of the perimeter of the first emitter region.

Abstract: An arrangement includes a solar cell and a covering, wherein the covering covers the solar cell, at least on the side that is intended to be exposed to electromagnetic radiation of the sun. The covering has an electrochromic layer. The arrangement also has a control unit for controlling the electrochromic layer. The control unit is designed to control the transmittance of the electrochromic layer for electromagnetic radiation in a defined wavelength range by applying an electrical voltage to the electrochromic layer.

Abstract: A waste heat recovery system for a photovoltaic panel may include an open loop system and a closed loop system. The open loop system includes an electric insulator layer and a moisture collection layer. The moisture collection layer may collect moisture from condensation and to direct moisture away from the photovoltaic panel. The closed loop system may be positioned adjacent to the open loop system. The closed loop system may include a liquid transfer mat that has a plurality of tubes through which a liquid passes to absorb heat from the photovoltaic panel. The open loop system is configured to encourage heat transfer from the photovoltaic panel to the closed loop system.

Abstract: A photovoltaic device includes one or more features that taken alone or in combination enhance its efficiency. Some embodiments may comprise a tandem solar device in which a top PV cell is fabricated upon a front transparent substrate, that also serves as the top encapsulating substance. The top PV cell including the front encapsulating substance is then bonded (e.g., using adhesive) to a bottom PV cell in order to complete the tandem device. Using the same transparent, insulating element as both front encapsulating substance and a substrate for fabricating the top PV cell, obviates to the need to provide a separate structure (with resulting interfaces) to perform the latter role. For tandem and non-tandem PV devices, a Through-Substrate-Via (TSV) structure may extend through an insulating substrate in order to provide contact with an opposite side (e.g., back electrode). Embodiments may find particular use in fabricating shingled perovskite photovoltaic solar cells.

Abstract: A method for electrically conductively contacting an optoelectronic component having at least one protective layer, including: providing the optoelectronic component having the at least one protective layer with at least one busbar arranged below the at least one protective layer, forming at least one opening by at least one laser beam in the at least one protective layer, wherein at least one busbar arranged below the at least one protective layer is partly exposed, such that the at least one busbar is not damaged, introducing a low-melting solder into the at least one opening of the at least one protective layer, aligning and fixing an electrically conductive element that is flexible on a side of the at least one opening opposite the at least one busbar, and forming an electrically conductive connection element in the at least one opening.

Abstract: Solar trackers that may be advantageously employed on sloped and/or variable terrain to rotate solar panels to track motion of the sun across the sky include bearing assemblies configured to address mechanical challenges posed by the sloped and/or variable terrain that might otherwise prevent or complicate use of solar trackers on such terrain.