Abstract: A solar cell covered with a transparent plate through a predetermined gap includes a flexible power generating layer which photoelectrically converts light incident thereon through the transparent plate, a resin layer covering a light receiving surface of the power generating layer, and an adhesion preventing layer covering the surface of the resin layer and facing the transparent plate through the gap. The adhesion preventing layer is made of an inorganic material and has a surface roughness Sz of 1 nm or more and 500 nm or less. Thus, the outermost surface of the solar cell is constituted by the adhesion preventing layer, so that no tack mark occurs even when partial contact occurs between the solar cell and the transparent plate which face each other through the gap. As a result, it is possible to prevent deterioration in appearance due to the tack mark.

Abstract: Object of the invention is to provide a new thin film device comprising at least one thin film cell, wherein the thin film cell comprises a first electrode, a photoactive layer and a second electrode, wherein the photoactive layer is arranged between the first and the second electrode, wherein at least one additional conductive line is arranged within an active area of the thin film cell and included in the photoactive layer and electrically interconnected with the first electrode and electrically insulated from the second electrode. Furthermore, the invention provides a method of forming a thin film device comprising at least one thin film cell, wherein the thin film cell comprises a first electrode, a photoactive layer and a second electrode and the photoactive layer is arranged between the first and the second electrode.

Abstract: Disclosed are a solar energy-salinity gradient energy synergistic power generation system and method by using concentrating beam splitting and waste heat recovery. A concentrating beam splitting photovoltaic power generation unit includes a light mirror, a liquid splitter, a bifacial solar cell, and a waste heat collecting tube; a waste heat recovery unit includes a multi-stage phase-change heat reservoir and a heat exchanger; a salinity gradient power generation unit includes first and second chambers, an ion-selective membrane, first and second electrodes; an electricity storage and control unit includes a battery pack and an inverter; and a water supply unit includes a seawater tank and a river water tank.

Abstract: A pressure-driven solar photovoltaic panel automatic tracking device includes a photovoltaic panel, a rotating shaft, a rotating wheel, a transmission component, a first counterweight, a second counterweight, a bellow tube, and a gas supply mechanism; the photovoltaic panel is fixed to the rotating shaft, the rotating wheel is fixed to the rotating shaft, the rotating wheel is provided with the transmission component, and both ends of the transmission component are respectively connected to the first counterweight and the second counterweight; the first counterweight is connected to the bellow tube, and the bellow tube is connected to the gas supply mechanism; and the bellow tube is expanded and contracted by controlling the gas supply mechanism, so that the first counterweight moves in the vertical direction, thereby driving the rotating wheel to rotate, so as to realize the automatic tracking of the sunlight by the photovoltaic panel.

Abstract: Systems and methods for providing a solar cell array with a reduced magnetic field are provided. The systems include a plurality of solar cells arrayed on a first surface side of a substrate. The solar cells are electrically connected to one another in series by a first conductor structure at least partially disposed on the first surface side of the substrate, forming a solar cell or supply circuit. A second conductor structure in series with the solar cell circuit is at least partially disposed on the second surface side of the substrate, forming a return harness. The supply circuit and the return harness define current paths that are opposite one another, and that are separated from one another by the substrate. The first and second conductor structures can be formed from conductive traces on the first and second sides respectively of the substrate.

Abstract: A photovoltaic device includes an electrically-conductive front contact layer; an electrically-conductive back contact layer, the back contact layer being intended to be situated further from a source of incident light than the front contact layer; and a semiconductor-based PIN junction having a substantially amorphous intrinsic silicon layer sandwiched between a P-type doped semiconductor layer and an N-type doped semiconductor layer. The layer of the PIN junction situated closest to the back contact layer is a silicon-germanium alloy layer including at least 2 mol % of germanium.

Abstract: Provided is a photovoltaic module, including: a substrate, at least one solar cell string and a packaging portion, wherein a bottom of the packaging portion has a packaging slot, the substrate and the at least one solar cell string are arranged in the packaging slot, the at least one solar cell string is arranged on a top surface of the substrate, a packaging gap is formed between a side surface of the substrate and a side surface of the packaging slot, a first packaging layer is arranged in the packaging gap, and the first packaging layer is configured to seal the packaging gap.

Abstract: A solar panel assembly includes a base having tubular bodies, a support unit including support frames connected between the tubular bodies and supporting rods extending upwardly from the supporting frames, a solar power panel disposed on the supporting rods, and a reflector plate disposed between the base and the solar panel to reflect light rays to a bottom surface of the solar panel. A solar power system includes a plurality of the aforesaid solar panel assemblies and multiple connectors.

Abstract: According to some embodiments, an electrical generating window comprises a first substrate layer, an anode layer disposed adjacent to the first substrate layer, a hole transport layer disposed adjacent to the anode layer, an active layer disposed adjacent to the hole transport layer, an electron transport layer disposed adjacent to the active layer, a cathode layer disposed adjacent to the electron transport layer, and a second substrate layer adjacent to the cathode layer. Two or more electron conveyance cylinders are disposed between the second substrate layer and the active layer.

Abstract: The problem is solved as follows: the photovoltaic thermal module consists of a photovoltaic module, on the rear side of which facing away from the sun a heat exchanger is located. The heat exchanger consists of at least one conduit through which heat transfer fluid flows. The conduits (which are optionally enlarged by heat transfer surfaces) are disposed at a distance from the photovoltaic module such that they are in good contact with the ambient air and also thermally conductively connected to the photovoltaic module. The surface area and the amount of heat exchange to the ambient air are increased by the main orientation of the surfaces of the heat exchanger running transversely to the PV module. As a result, a good flow of ambient air around both the heat exchanger and the rear side of the PV module is made possible. The PVT module is used, in particular, in combination with heat pumps for supplying heat to and/or cooling buildings.

Abstract: A panel connected body includes a plurality of flat panels arranged in a matrix of m rows and n columns, where m?3 and n?3; and a plurality of row-direction connection portions and column-direction connection portions which connect together panels that are adjacent in a row direction and column direction, respectively. A first type row satisfying relationships D1?2L and Dy?Dy?1?2L and a second type row satisfying relationships Dn?2L and Dy?Dy+1+2L are alternately included, where Dy is a length along the column direction of the column-direction connection portions in a y-th column, and L is a thickness of the panels. The relationship E?WC?L is satisfied, where WC is a length along the column direction of the panels and E is a length along the column direction of the row-direction connection portions.

Abstract: A device, comprising: a flexible carrier; a release layer that is formed on the flexible carrier; a releasable substrate formed over the release layer; and a semiconductor structure that is formed over the releasable substrate.

Abstract: A system for harvesting solar energy on a spacecraft includes a stiff substrate layer and a working layer disposed on the substrate layer to provide at least one of a photovoltaic or a reflective function. In a first operational state, the substrate layer is arranged as a tape spring to store potential energy which causes the substrate layer to uncoil and provide, in a second operational state, a photovoltaic module and/or a solar concentrator.

Abstract: Luminescent solar concentrators (LSCs) based on engineered quantum dots (QDs) are disclosed that include at least one lower band-gap energy LSC layer and at least one higher band-gap energy LSC layer. The higher band-gap energy LSC layer has a higher internal quantum efficiency (IQE) than the lower band-gap energy LSC layer. The lower band-gap energy LSC layer may broadly absorb the remainder of the solar spectrum that is not absorbed by previous layers. An external optical efficiency (EQE) of at least 6%, and in some cases, more than 10%, may be achieved by such LSCs.

Abstract: A dynamic isotope battery includes: a metallic canal; a housing, defining a chamber for accommodating a heat source and provided with a non-return valve, two opposite ends of the housing being communicated with two ends of the metallic canal respectively to form a closed circulation loop; a fuel cartridge fixedly disposed within the housing; a radioactive source contained in the fuel cartridge; a liquid metal provided in the circulation loop; a piezoelectric transduction component disposed on an inner surface of the metallic canal; a heat dissipation structure, provided at an outer surface of the metallic canal and spaced apart from the piezoelectric transduction component along an axial direction of the metallic canal; and an electromagnetic pump, provided at the metallic canal for driving circular flow of the liquid metal.

Abstract: Photovoltaic device with band-stop filter. The photovoltaic device includes an amorphous photovoltaic material and a band-stop filter structure having a stopband extending from a lower limiting angular frequency ?min?0 to an upper limiting angular frequency ?max where ?max>?min. The band-stop filter structure is arranged in the photovoltaic device relative to the photovoltaic material in order to attenuate electromagnetic radiations reaching the photovoltaic material with angular frequencies of ?* in the stopband, so that ?min<?*<?max. The angular frequencies ?* correspond to electronic excitations ??* from valence band tail (VBT) states of the amorphous photovoltaic material to conduction band tail (CBT) states of the amorphous photovoltaic material.

Abstract: To reach high efficiencies, thermophotovoltaic cells must utilize the broad spectrum of a radiative thermal source. One promising approach to overcome this challenge is to have low-energy photons reflected and reabsorbed by the thermal emitter, where their energy can have another chance at contributing toward photogeneration in the cell. However, current methods for photon recuperation are limited by insufficient bandwidth or parasitic absorption, resulting in large efficiency losses relative to theoretical limits. This work demonstrates nearly perfect reflection of low-energy photons (˜99%) by embedding an air layer within the TPV cell. This result represents a four-fold reduction in parasitic absorption relative to existing TPV cells. As out-of-band reflectance approaches unity, TPV efficiency becomes nearly insensitive to cell bandgap and emitter temperature. Accessing this regime unlocks a range of possible materials and heat sources that were previously inaccessible to TPV energy conversion.

Abstract: A free-space optical power beaming device may be configured to receive a light beam from an external source. The device may include a plurality of photovoltaic elements configured to convert light to electrical energy; a plurality of electrical charge storage elements, and a light reflector element configured to reflect a light beam toward one or more of the plurality of photovoltaic elements. Each electrical charge storage element may be coupled with at least of one of the plurality of photovoltaic elements and configured to store electrical energy output from the at least one of the plurality of photovoltaic elements. In some aspects a set of the plurality of photovoltaic elements may be configured in a tilted manner. In other aspects the light reflector element may be steerable to reflect a light beam toward one or more of the plurality of photovoltaic elements to provide a desired time-averaged light intensity distribution.

Abstract: Disclosed are a compound represented by Chemical Formula 1, a film, a photoelectric diode, an organic sensor, and an electronic device. In Chemical Formula 1, Ar1 and Ar2, Z, L1, L2, and R1 to R6 are the same as defined in the detailed description.

Abstract: A solar panel mounting system for forming a solar array includes longitudinal support rails mounted to a support structure such as a roof. A first solar panel disposed on the rails has a peripheral frame including a locking frame member with deformable clamping portion configured for slideably receiving a peripheral frame portion of an adjacent second solar panel. A pair of captive T-bolt sets passing through the clamping portion include T-bolts having locking heads and nuts frictionally engaged with the T-bolts to rotate the T-bolts. The heads are each inserted and rotationally locked into fastening channels of respective support rails. The second solar panel is inserted into the first panel clamping portion and the nuts are fully tightened producing a clamping action which locks the first and second panels together. Power/control cables may be routed inside covered cable compartments on rears of the panels for protection against rodent damage.