Abstract: A method of fabricating multijunction solar cell including an upper solar subcell and having an emitter of p conductivity type with a first band gap, and a base of n conductivity type with a second band gap greater than the first band gap; a lower solar subcell disposed below the upper solar subcell having an emitter of p conductivity type with a third band gap, and a base of n conductivity type with a fourth band gap greater than the third band gap; and an intermediate grading interlayer disposed between the upper and lower solar subcells and having a graded lattice constant that matches the upper first subcell on a first side and the second solar subcell on the second side opposite the first side, and having a fifth band gap that is greater than the second band gap of the upper solar subcell.

Abstract: Apparatus, systems, and methods for designing photovoltaic panels are described herein. The photovoltaic panels are composed substrings of photovoltaic cells. The substrings of photovoltaic cells may be oriented in a horizontal fashion with respect to a layout of the photovoltaic panels. In the event of snow coverage, partial shading, mutual shading, and so forth, orienting the substrings of the photovoltaic cells in this manner enables those substrings which are disposed higher up in the photovoltaic panel to resume operation even while those substrings which are disposed lower down in the photovoltaic panel remain covered, shaded or otherwise blocked or impeded from functioning. Accordingly, the overall productivity of a photovoltaic panel designed as described herein is increased. Related apparatus, systems, and methods are also described.

Abstract: A stackable photovoltaic module including at least one photovoltaic element which is circumferentially surrounded by a frame. The frame has at least one projection and at least one recess which engage in one another when a first frame is arranged on a second frame. The frame consists of a plurality of frame elements which are connected by at least one connector.

Abstract: A semiconductor substrate, including a back surface having N-type conductive regions and P-type conductive regions. The N-type conductive regions are provided with first non-pyramidal texture structures, and the P-type conductive regions are provided with second non-pyramidal texture structures. A top surface of the first non-pyramidal texture structure is a polygonal plane, and a top surface of the second non-pyramidal texture structure is a polygonal plane. A one-dimensional size of the top surface of the first non-pyramidal texture structure is less than a one-dimensional size of the top surface of the second non-pyramidal texture structure. The one-dimensional size of the top surface of the first non-pyramidal texture structure is in a range of 5 ?m to 12 ?m. The one-dimensional size of the top surface of the second non-pyramidal texture structure is in a range of 10 ?m to 40 ?m.

Abstract: A receiver for solar concentrating systems including a container including at least one transparent wall configured to receive solar rays from a solar concentrator and defining at least one cavity housing, a conversion module configured to convert solar energy taken from the solar rays into thermal and/or electrical energy and housed within part of the cavity close to the wall and separated from the wall by a slot, and transparent optical gel housed within the cavity and configured to completely occupy at least the slot to shield the conversion module.

Abstract: A solar cell, a manufacturing method thereof, and a photovoltaic module. The solar cell includes: a semiconductor substrate including first and second surfaces opposite to each other; emitter and first passivation layer formed over the first surface; tunneling layer formed over the second surface; first doped conductive layer and retardation layer formed on the tunneling layer and corresponding to metallization region, the first doped conductive layer is located between the tunneling layer and the retardation layer; second doped conductive layer formed over the tunneling layer and covering the tunneling layer in non-metallization region and the retardation layer, the retardation layer is configured to retard migration of doped element in the second doped conductive layer to the first doped conductive layer; second passivation layer formed over the second doped conductive layer; and second electrode forming contact with the second doped conductive layer and first electrode forming contact with the emitter.

Abstract: The solar power generation system includes a string, an inverter, and primary and secondary shut-off devices. The primary shut-off device cuts off the string and the inverter in response to a first control signal. The secondary shut-off device cuts off a solar cell module group and another solar cell module or the inverter in response to a second control signal from the primary shut-off device. The secondary shut-off device includes a first secondary-device open-close unit in a first electric pathway, a semiconductor switching device disposed between the first secondary-device open-close unit and a solar cell module group, and a power supply unit having an anode-side terminal connected between a solar cell module group and the semiconductor switching device, which generates power to drive the third open-close unit. The semiconductor switching device enters an OFF state when power generated by the solar cell module groups falls below a predetermined threshold.

Abstract: A method for forming a hole transport layer on a surface of a substrate includes providing M target materials comprising inorganic hole transport materials and forming the hole transport layer on the surface of the substrate using magnetron sputtering. The hold transport layer at least comprises N consecutive sub-layers. M and N are integers and 2?N?M. One of the M target materials is a doped target material further comprising a doping material.

Abstract: A thermoelectric power generation device includes: a high-temperature plate having an upper face; a low-temperature plate having a lower face; a thermoelectric module disposed between the upper face and the lower face; a sealing portion disposed between the upper and lower faces, the sealing portion sealing the thermoelectric module at a circumferential portion of the upper face and a circumferential portion of the lower face; a first positioning portion disposed at the circumferential portion of the upper face; and a second positioning portion disposed at the circumferential portion of the lower face. The first positioning portion positions the sealing portion at the circumferential portion of the upper face, and the second positioning portion positions the sealing portion at the circumferential portion of the lower face.

Abstract: Provided are a solar cell, including: a semiconductor substrate, in which a rear surface of the semiconductor substrate having non-pyramid-shaped microstructures, the non-pyramid-shaped microstructures include two or more first substructures at least partially stacked on one another, and a one-dimensional size of the surface of the outermost first substructure is less than or equal to 45 ?m; a first passivation layer located on a front surface of the semiconductor substrate; first and second tunnel oxide layers located on the non-pyramid-shaped microstructures; first and second doped conductive layers located on a surface of the first and second tunnel oxide layers, the first and second doped conductive layer has different conductive types; a second passivation layer located on a surface of the first and second doped conductive layers; and electrodes formed by penetrating through the second passivation layer to be in contact with the first and second doped conductive layers.

Abstract: The solar cell includes a substrate having electrode regions and non-electrode regions alternatingly. The electrode regions have a first surface, the non-electrode regions have a second surface, and the first surface has a smaller roughness than the second surface. The solar cell further includes a first tunneling dielectric layer formed over the first surface, a first doped conductive layer arranged on a side of the first tunneling dielectric layer, a passivation layer formed over the second surface and the first doped conductive layer, and at least one first electrode. The at least one first electrode are arranged in the electrode regions, each of the at least one first electrode includes a connecting electrode formed over the electrode regions and multiple spot electrodes. The multiple spot electrodes are arranged below the connecting electrode and connected to the connecting electrode.

Abstract: [Problem]To propose a simplified configuration with which a solar power generation device can be easily and quickly assembled and installed and to propose a solar power generation device configuration with which the wind resistance is preferably more reduced. [Solution] The solar power generation device supporting frame integrated with a solar power generation panel is fixed to at least one of a plurality of supporting poles projected upward from an installation base surface, has a rod-like body appearance, and has a solar power generation panel integrally provided at least along the upper side curved surface thereof without being separated from the upper side curved surface. Preferably, the solar power generation device supporting frame integrated with the solar power generation panel is fixed to the supporting poles horizontally.

Abstract: An n-type material for thermoelectric conversion obtained by doping a p-type material for thermoelectric conversion with a dopant, the p-type material for thermoelectric conversion containing a carbon nanotube and a conductive resin, in which the dopant contains an anion that is a complex ion, an alkali metal cation, and a cation scavenger.

Abstract: Embodiments of the present disclosure relates to a photovoltaic module and a method for producing the photovoltaic module. The photovoltaic module includes a photovoltaic laminate and a junction box. The photovoltaic laminate includes a plurality of solar cells, at least one solder strip, a rear plate and a wiring member. The at least one solder strip is electrically connected with the wiring member. The junction box includes a bonding pad. The wiring member passes through an opening defined on the rear plate and abuts the bonding pad, and the wiring member is connected with the bonding pad by laser welding. A plurality of weld seams are formed in a welding region. Each weld seam extends from the wiring member towards interior of the bonding pad, and an extension depth of each weld seam in the bonding pad is not greater than 80% of a thickness of the bonding pad.

Abstract: A system composed of a photovoltaic module, itself composed of a multilayer housed in a frame and of at least one anti-vibration device that is able to be fixed with respect to the multilayer and in which the photovoltaic module as a whole has a total mass, a modal mass, and a natural frequency of vibration; the at least one anti-vibration device has: a mass, a natural frequency equal to a natural frequency of vibration of said photovoltaic module considered on its own, to within 15%, and a level of damping of the anti-vibration device considered on its own, equal to at least twice the level of damping of said photovoltaic module considered on its own.

Abstract: A solar tracking system comprises multiple solar panel modules forming a grid of solar panel modules, wherein the multiple solar panel modules are orientatable to a solar source independently of each other; and a control system configured to orient each of the multiple solar panel modules to the solar source independently of each other based on a performance model to optimize an energy output from the grid of solar panel modules, wherein the performance model predicts an energy output from the grid of solar panel modules based on a topography of the area containing the grid of solar panel modules and weather conditions local to each of the solar panel modules.

Abstract: The present invention relates to a solar cell manufacturing method, a solar cell manufactured thereby, and a substrate for a solar cell. The solar cell manufacturing method involves forming a separating portion for separating a substrate, which is for manufacturing the solar cell, into a plurality of pieces. The solar cell manufacturing method comprises: a step for preparing the substrate; a first substrate etching step for forming a first groove in one surface of the substrate; a second substrate etching step for forming a second groove inside the first groove; and a third substrate etching step for etching the substrate including the second groove, wherein the separating portion includes the first groove and the second groove.

Abstract: A thermoelectric conversion module includes a base material having heat insulation properties and carbon nanotube yarn that is helically wound around the base material, P-type parts and N-type parts are alternately arranged and are series-connected in an extension direction of the carbon nanotube yarn, one side part of a helix formed by the carbon nanotube yarn is formed as a heat reception part, and the other side part across the base material from the one side part is formed as a heat dissipation part, lengths of the P-type parts and lengths of the N-type parts are shorter than a length of a one-turn portion of the helix, and the P-type parts and the N-type parts are arranged such that respective one end parts are included in the heat reception part and respective other end parts are included in the heat dissipation part.

Abstract: There is a polymeric photovoltaic cell (or solar cell) with inverted structure having an anode; an anodic buffer layer; an active layer having at least one photoactive organic polymer as electron-donor and at least one electron-accepting organic compound; a cathodic buffer layer; and a cathode. The at least one photoactive organic polymer is selected from conjugated polymers comprising an anthraditiophenic derivative having a general formula (I): The polymeric photovoltaic cell (or solar cell) with inverted structure shows good values of power conversion efficiency (PCE) (?) and can be advantageously used in the construction of photovoltaic modules (or solar modules), either on a rigid support or on a flexible support.

Abstract: A multijunction solar cell including an upper first solar subcell having an emitter and base layers forming a photoelectric junction; a second solar subcell disposed under and adjacent to the upper first solar subcell, and having an emitter and base layers forming a photoelectric junction; and a third solar subcell disposed under and adjacent to the second solar subcell and having an emitter and base layers forming a photoelectric junction; wherein at least one of the base and emitter layers of at least a particular solar subcell from among the upper first solar subcell, the second solar subcell, and the third solar subcell has a graded band gap throughout at least a portion of thickness of its active layer adjacent to the photoelectric junction and being in a range of 20 to 300 MeV greater than a band gap in the active layer away from the photoelectric junction.