171 results about "Solar energy" patented technology

A luminescent solar collector is provided comprising a substrate and a light energy converter, such as a photocell, operatively connected thereto. The substrate is molded from a thermoplastic composition comprising a polymer and a fluorescent dye or quantum dot dispersed therein. The polymer comprises a polycarbonate unit and a polyester unit derived from the reaction of isophthalic acid, terephthalic acid, and resorcinol (ITR). In further embodiments, the substrate comprises two or more layers including a fluorescent layer and an overcoat layer. The fluorescent layer comprises the fluorescent dye or quantum dot and a polycarbonate polymer. The overcoat layer comprises the ITR unit. The substrate, in single layer or multiple layer form, has reduced haze levels over a prolonged period of time.

The invention provides a high strength organic / inorganic nano composite film layer materials and method for preparation, wherein the composition comprises 10-13% of titanate, 7-17% of silicane coupling agent, 0-6% of silicate ester, 40-65% of alcohol solvent and 1-4% of water. The preparation of the composition consists of using inorganic acid as catalyst, co-hydrolyzing titanate, silicate and silane coupling agent in dimethyl carbinol, coating the obtained paint by rotary, dipping or spraying methods onto the surface of the appliances, finally solidifying 1-3 hours at 135- 150 deg. C.

Disclosed is a porous electrode comprising a porous film (A) with through pores and an electrically conducting material selected from the group consisting of conductor and semiconductor, the porous film (A) having an average pore size d1 of from 0.02 to 3 μm and a porosity of from 40 to 90%, the electrically conducting material being filled in the through pores of the porous film (A). A dye-sensitized solar cell and an electric double layer capacitor including the porous electrode as a constituent are also disclosed.

Solar-powered lighting devices that may be portable and/or collapsible are described. The devices may include a housing including a first wall, a second wall, and one or more side walls between the first wall and the second wall, at least one solar panel to generate solar energy, and a rechargeable battery to store the solar energy generated. The devices may include a plurality of operating modes for controlling lights within the housing, and a microprocessor for controlling the operating modes.

A mounting system for supporting a plurality of photovoltaic modules on a sloped support surface, such as a sloped roof, is disclosed herein. The mounting system may include one or more support surface attachment devices, each support surface attachment device configured to attach one or more photovoltaic modules to a support surface; and one or more module coupling devices, each module coupling device configured to couple a plurality of photovoltaic modules to one another.

An optical sheet suitable for use in a laminate comprising at least one glazing component. The optical sheet comprises a non-metallic multi-layer optical film that has multiple optical layers, and can be, for example, a solar energy reflective film (e.g., an infrared radiation reflective film). The multiple layers are thermally and/or otherwise fused together along all, substantially all or at least a substantial portion of the peripheral edge of at least the optical film, so as to prevent or at least substantially reduce the occurrence or degree of delamination of the multiple layers along all, substantially all, or the substantial portion of the peripheral edge of the optical film. At least the optical film can be dimensioned such that, when bonded to a glazing component, all, substantially all or at least the substantial portion of the peripheral edge of at least the optical film is positionable so as to be co-extensive with or substantially co-extensive with a corresponding portion of the peripheral edge of the glazing component to which the optical sheet is to be bonded.

The invention discloses low-temperature conductive silver paste and a preparation method and application thereof. Silver nano wires and silver powder in conventional conductive silver paste are mixed to form novel low temperature conductive silver paste. The content of silver powder in conventional conductive silver paste is greatly reduced, and a few silver nano wires play good conductive effect. Conventional conductive silver paste requires circular silver particles which contact point-to-point to realize conduction, the silver nano wires can serially connect original silver particles, and the silver nano wires form a conductive network in a network shape. Conductive films, conductive switches, flexible print circuit boards, electromagnetic shields, potentiometers, wireless radio frequency identification systems and solar cells formed by the low-temperature conductive silver paste have better bending resistance performance.

The present disclosure passivates solar cell defects. Plasma immersion ion implantation (PIII) is used to repair the defects during or after making the solar cell. Hydrogen ion is implanted into absorption layer with different sums of energy to fill gaps of defects or surface recombination centers. Thus, solar cell defects are diminished and carriers are transferred with improved photovoltaic conversion efficiency.

A solar cell and a fabricating method thereof are provided. In the method of fabricating the solar cell, a p-type semiconductor substrate on whose light-receiving surface an anti-reflection coating is formed is loaded into a processing chamber. In this case, the p-type semiconductor substrate may be loaded on a substrate support of an apparatus of processing a plurality of substrates along the circumference of the substrate support, in the state where the back surface of the p-type semiconductor substrate faces upward. Then, a back surface field (BSF) layer having the characteristic of Negative Fixed Charge (NFC) is formed with AlO, AlN or ALON on the back surface of the p-type semiconductor substrate. At this time, the BSF layer may be formed by simultaneously injecting an Al source gas, a first purge gas, an oxidizing agent gas and/or a ntiriding agent gas, and a second purge gas through injection holes of individual gas injection units while relatively rotating the substrate support with respect to the shower head. Thereafter, a back surface electrode is formed on the BSF layer such that the back surface electrode is electrically connected to the BSF layer.

A solar powered LED portable light tower. A solar powered LED portable light tower may comprise: one or more photovoltaic modules, an adjustable masthead, one or more lamps, one or more batteries, an inverter, a controller, and a base. The lamps may be light emitting diodes. The controller may be configured to turn on and off and dim said one or more lamps, and preferably comprises a motion sensor. The portable light tower may also comprise a concrete ballast, fork lift option, and/or a trailer option.

The invention relates to a plating method for an anti-reflection film with high transmittance and low reflectivity, wherein the method is the key technology of window glasses and filters of digital cameras, and the technology can further be applied in fields of radiation protection glasses, thermal insulation glasses, window glasses, solar energy utilization and the like. The method comprises the following steps in vacuum plating equipment: (1) pumping vacuum; (2) heating; (3) cleaning ions (Ar and O2); (4) plating SiO2; (5) etching under full oxygen atmosphere (only introducing O2); (6) plating TiO2; and (7) etching under full oxygen atmosphere (only introducing O2), and repeated performing the steps of (4)-(7) until the film system is completed. According to the present invention, the transmittance of the anti-reflection film in the optical wavelength region of 400-700 nm is improved without improvement of vacuum plating equipment requirements, and the reflectivity is further reduced.

The invention discloses a warning vehicle used for road construction. The warning vehicle used for road construction comprises a bottom board. A tool cabinet is fixedly arranged at the top end on thebottom board. A fixing board is fixedly arranged at the top end of the tool cabinet. The side end of the fixing board is fixedly connected with a push handle. Four barrels are fixedly arranged in thepositions, close to the four corners, at the top end of the fixing board. Damping springs are fixedly arranged in the barrels. Sliding rods are fixedly connected to the top ends of the damping springsand inserted in the barrels. The top ends of the sliding rods are fixedly connected with a locating board. A U-shaped block is fixedly connected to the top end of the locating board. An air bag is arranged in the U-shaped block. By the adoption of the warning vehicle, solar energy can be converted into electric energy to be used by the warning vehicle, the warning vehicle can automatically inductlight intensity, the proper turn-on number of warning lamps can be controlled, energy is effectively saved, the positions of the warning lamps and lighting lamps can be vertically adjusted through the air bag, the height is convenient to control, a vehicle located in the farther position can see the warning vehicle, a larger area can be lighted, worker construction is convenient, and the air bagand the damping springs are further used for effectively preventing the warning vehicle from being crushed by an upper-air falling object.

The invention relates to a back contact solar cell string, a preparation method thereof, an assembly and a system. The back contact solar cell string comprises back contact solar cells and conductive members used for the electric connection of the back contact solar cells. An emitting electrode p+ region, an emitting electrode contact electrode arranged on the emitting electrode p+ region, a base electrode n+ region and a base electrode contact electrode arranged on the base electrode n+ region are alternately arranged on the back surface of the back contact solar cell. An emitting electrode insulating baffle layer arranged on the emitting electrode contact electrode and a base electrode insulating baffle layer arranged on the base electrode contact electrode are further arranged on the back surface of the back contact solar cell. The emitting electrode contact electrodes and the base electrode contact electrodes of adjacent back contact solar cells are electrically connected through the conductive members, and in this way, the back contact solar cell string is formed. The back contact solar cell string has the technical effects that welding for the serial connection between the cells is replaced by the insulating baffle layers and the conductive members, the process flow is simple, high precision welding equipment is not needed, and the filling factor of the assembly is improved.

Methods are used to develop and evaluate new materials and deposition processes for use as TCO materials in HJCS solar cells. The TCO layers allow improved control over the uniformity of the TCO conductivity and interface properties, and reduce the sensitivity to the texture of the wafer. In Some embodiments, the TCO materials include indium, zinc, tin, and aluminum.

A kind of illuminate device light controls multiple functions natural lamp with the natural wind energy and the solar energy generating electricity. It is at the outside of hollow hexangular base circular holder pipe makes the four-groove vertical revolving tray, inner gear mission, pillow, 100W DC generator, hexangular surface shape big lamp screen, solar energy battery plate, steady flow voltage regulator, charging bomb, light controller, and the energy-saving bulb connected in sequence assemble. The charging bomb inlet wire positive and negative electrode connect with the output positive and negative electrode line of the 100W DC generator and the solar energy battery plate and the charging bomb's output positive and negative electrode line connects with the energy-saving lamp supplying electricity among of them connecting the light controller in series. When there is the wind and the solar the 100W DC generator and the solar energy battery plate supply the electricity for the charging bomb at the same time; when there is no wind and solar the charging bomb supplies the electricity for the energy-saving lamp supplying electricity circuit. Among them it connects the light controller in series and the ray of light is strong so the light controller cuts the energy-saving lamp supplying electricity circuit automatically; at night there is no light so the light controller will turn on the energy-saving lamp supplying electricity circuit automatically.

The invention relates to a one-step copolymerization method for preparing an efficiently-selective carbon nitride photocatalyst based on energy environment backgrounds, and belongs to the field of carbon material science. The efficiently-selective photocatalyst serves as a simple pathway for acquiring complicated organic oxidation products, converting solar energy into chemical energy and storing the chemical energy, and a support is provided for sustainable utilization of energy, so that a mild and efficient photocatalyst is extremely sought. According to the method, 3, 3', 4, 4'-BTDA (benzophenonetetracarboxylic dianhydride) with long triplet lives is creatively introduced based on melem with a tri-s-triazine structure, conduction and valence band values of carbon nitride are adjusted, the triplet lives are prolonged, so that singlet oxygen is generated, and selective photocatalyst oxidation capacity of the carbon nitride is improved. The carbon nitride photocatalyst prepared by the method does not contain precious metals, is low in cost and simple to operate and solves the problem of application limit of the carbon nitride in the elective photocatalyst oxidation field, and batch production of the photocatalyst can be achieved.

The invention discloses a silicon wafer sorter, which belongs to the technical field of solar cells. The silicon wafer sorter includes a conveying part, a feeding part and a detecting part. The feeding part is used to supply a silicon wafer to the conveying part. The conveying part is used to convey the silicon wafer to the detecting stations of the detecting part for detection. The detecting partis used to carry out at least two types of detection among dirt detection, thickness detection, hidden crack detection, overall dimension detection, P/N-type detection and side defect detection on the silicon wafer. The problem of low production efficiency caused by the fact that the silicon wafer sorter can only complete a single detection in related technologies is solved, and the production efficiency of solar silicon wafers is improved.

According to embodiments of the invention, a glass paste composition for a dye sensitized solar cell includes a glass frit, an organic binder, and an organic solvent.

The invention discloses a protective shell of an electronic device with a charge-discharge function. The protective shell of the electronic device with the charge-discharge function comprises a base shell, wherein the electronic device is arranged on the base shell, a circuit board and a needle head connector are arranged on the base shell, and the needle head connector is in electric connection with the circuit board or is integrated on the circuit board. The protective shell of the electronic device with the charge-discharge function is capable of directly charging the electronic device through the needle head connector, capable of charging other equipment needing to be charged through the needle head connector, and capable of further supplying power to the electronic device through a charging battery in the protective shell. Solar energy is converted into electricity through a solar charging board, so that the lithium battery in the protective shell is charged or a battery inside the electronic device is directly charged, energy is saved, the protective shell is capable of meeting the non-stop usage requirement even under the condition that charging can not be carried out through a common power source, and therefore great convenience is brought to a user.

The invention discloses a photothermal evaporation surface, and a preparation method and an application thereof, and belongs to the technical field of solar photothermal utilization. The photothermalevaporation surface is formed by attaching porous microstructures, which are periodically arranged in an array, to the surface of a substrate, and every porous microstructure is a coffee ring-shaped structure formed by the accumulation of nanoparticles; and a micro-droplet generator is used to periodically arrange nanofluid droplets on the surface of the substrate in the array manner, and heatingis carried out to evaporate the droplets until dryness in order to form the coffee ring-shaped porous microstructures, periodically arranged in the array manner, on the surface of the substrate. The photothermal evaporation surface provided by the invention has a high photothermal conversion efficiency and can be repeatedly used, and the preparation method has the advantages of very small use amount of the nanofluid required for preparing the high-efficiency photothermal evaporation surface, low cost, and facilitation of industrial application.

The invention discloses a planar undoped heterojunction-perovskite laminated cell and a preparation method thereof, and relates to the technical field of solar cells. The cell comprises a perovskite top-layer solar cell and a heterojunction bottom-layer solar cell which are connected together, wherein the perovskite top-layer solar cell comprises a front metal electrode layer, a first transparentconductive oxide layer, a hole transport layer, a perovskite light absorption layer and an electron transport layer which are sequentially arranged from top to bottom; the perovskite light absorptionlayer comprises a perovskite layer A, a perovskite layer B and a perovskite layer C which are sequentially arranged from top to bottom; the forbidden band width of the perovskite layer A is 2.4 to 3.0ev; the forbidden band width of the perovskite layer B is 2.0-2.6 ev, the forbidden band width of the perovskite layer C is 1.9-2.2 ev; and the forbidden band widths of the perovskite layer A, the perovskite layer B and the perovskite layer C are sequentially reduced. The perovskite solar cell has the advantages that the photoelectric conversion efficiency exceeds 28%, the open-circuit voltage ishigh, and the generating capacity is increased.