200results about "Light-sensitive devices" patented technology

There is disclosed a hybrid system for generating free energy from dam-water by integrating giant turbines with piezoelectric nanogenerators and solar cells. This three-in-one generator harnesses electrical energy from solar and mechanical energy. Strategically positioned large-scale turbines convert the kinetic energy of water flow into electrical energy. Concurrently, integrated piezoelectric nanogenerators transform mechanical stress from turbine operations into electrical energy via the piezoelectric effect. These nanogenerators function as self-charging hybrid supercapacitors (SCHSCs), featuring activated carbon (AC) electrodes and PVA-KOH-BTO electrolyte. Solar panels utilizing dye-sensitized solar cells (DSSCs) with TiO2 photoanodes, molybdenum disulfide (MoS2) counter electrodes, an iodine-based electrolyte, and dyes enhance energy conversion efficiency under varying solar conditions. The system efficiently generates electricity even under low-flow conditions, minimal sunlight, or when turbines are not operating at full capacity.

The invention discloses a method for preparing a porous Ti-based electrode through laser cladding composite electrochemical dealloying, which comprises the following steps: under an atmosphere protection device, preparing a copper-titanium alloy cladding layer on a substrate by adopting a laser cladding technology, cutting the cladding layer and the substrate to obtain a precursor alloy material, and preparing a porous Ti-based electrode on the precursor alloy material, and finally, carrying out electrochemical dealloying treatment on the precursor alloy material by adopting a corrosive agent, selectively dissolving the element copper, and finally obtaining the porous Ti-based electrode material. According to the method, two surface modification technologies of laser cladding and dealloying are combined, the coating and the matrix can be metallurgically bonded through the laser cladding technology, the interface resistance is low, the structure is compact, and machining is fast; according to the electrochemical dealloying, components with relatively high activity in the coating are selectively dissolved to form a porous structure; the electrochemical dealloying processing technology is simple, the generated porous structure has high porosity and large specific surface area, a large number of catalytic active sites can be provided, meanwhile, the components, the structure and the size are easy to adjust, and therefore different requirements are met.

The invention discloses a benzotriazole light conversion material, a preparation method and application of the benzotriazole light conversion material in preparation of a solar cell packaging film. When a light conversion packaging film formed based on the benzotriazole light conversion material is attached to an organic solar cell, a dye-sensitized solar cell, a crystalline silicon solar cell, a perovskite solar cell and a laminated cell composed of the perovskite cell and the crystalline silicon cell, the ultraviolet stability of the solar cell can be improved; and the power conversion efficiency of the solar cell can be maintained.

The application discloses a kind of gold nanoparticle loaded oxygen-doped ultrathin porous boron nitride film electrode and preparation method thereof, the preparation method includes the following steps: according to mass ratio 1:3-6:0.25-0.35, boric acid, urea, oxalic acid is prepared oxygen-doped ultrathin porous boron nitride, then gold nanoparticle is loaded oxygen-doped ultrathin porous boron nitride and coated on conductive substrate to form film electrode.The oxygen-doped ultrathin porous boron nitride film electrode loaded with gold nanoparticles prepared by the application has the advantages of large specific surface area, high electron-hole separation efficiency, fast electron transfer rate, etc., is a new type of film electrode with excellent photoelectric performance, meets the actual production demand, and has wide application prospect in photoelectrochemical field.The preparation method also has the advantages of simple process, easy operation, high preparation efficiency and low cost, and is suitable for large-scale preparation, which is beneficial to industrial application.

The invention provides a light conversion adhesive film for sunlight wavelength conversion and a preparation method thereof, the light conversion adhesive film comprises a compound of formula I and a substrate transparent to visible light, the definition of each group in the compound of formula I is described in the specification, and the mass fraction of the compound of formula I in the light conversion adhesive film is 0.001%-3%. The light conversion adhesive film can be used for a solar cell so as to enhance the efficiency and the stability of the cell.

To provide a composition for an electrolyte capable of suppressing gas generation during high-temperature storage, and to provide an electrochemical device, a secondary battery and a lithium ion secondary battery using the composition for the electrolyte.SOLUTION: The composition for an electrolytic solution contains a compound (A) represented by formula (A). (A) Rf1-O-CH2-CH2-O-R1 (wherein Rf1 is a fluoroalkyl group having 1 to 6 carbon atoms, and R1 is H, Li, Na, K or Cs); ) SELECTED DRAWING: None

The present invention relates to an unsymmetrical squaraine dye of formula (I) and process for the preparation thereof. The process includes dissolving a 3-cycloalkene-1,2-dione compound in acetone and aqueous HCl to afford a semisquaraine compound. The process includes refluxing the semisquaraine compound and phenyl carboxylic acid dissolved in solvent to afford the unsymmetrical squaraine dye. Further, the present invention relates to an electronic device with an enhanced device efficiency containing a dye of formula (I) co-sensitized with a squaraine dye.

Integrated photoelectrochemical capacitor based on bismuth vanadate BiVO4 and poly(3,4-ethylenedioxythiophene) (PEDOT) is characterized in that it comprises a BiVO4 layer, preferably with a thickness ranging from 70 to 1000 nm, deposited on fluorine-doped tin oxide (FTO) conductive glass on one side, and an electrochemically deposited PEDOT layer on FTO glass on the other side, wherein both FTO glass layers are bonded together on the non-conductive side using resin, preferably epoxy, and the conductive sides are connected using tape.

The present invention relates to a solar cell (1a) comprising a stack of porous layers, a support substrate (2) for supporting the stack, and a charge conducting medium (7) penetrating through the porous layers. The stack comprises a porous light-absorbing layer (3), a porous first conductive layer (4) including conductive material for extracting photo-generated 5 electrons from the light-absorbing layer, a porous counter electrode (6) including conductive material, and a separating layer (5) made of porous electrically insulating material and arranged between the conductive layer (4) and the counter electrode (6), and where the conductive layer (4) is arranged closer to the light-absorbing layer (3) than the counter electrode (6). The support substrate (2) is porous, and the charge conducting medium (7) is penetrating through the support substrate (2).

Presented herein is a voltaic cell containing light harvesting antennae or other biologically-based electron generating structures optionally in a microbial population, an electron siphon population having electron conductive properties with individual siphons configured to accept electrons from the light harvesting antennae and transport the electrons to a current collector, an optional light directing system (e.g., a mirror), and a regulator having sensing and regulatory feedback properties for the conversion of photobiochemical energy and biochemical energy to electricity. Also presented herein is a voltaic cell having electricity-generating abilities in the absence of light. Also presented herein is the use of the voltaic cell in a solar panel.

The invention relates to a preparation method of a polyacid modified CuMoSelectrode material, and belongs to the technical field of new energy materials and photoelectric conversion. According to the preparation method, an in-situ synthesis method is adopted, and SiW11Co is doped in a CuMoS material through a one-step solvothermal preparation technology; comprising the following steps: S1, dissolving sodium molybdate and thioacetamide in ethylene glycol, then adding SiW11Co into the solution for dissolving, finally adding Cu2O, and carrying out ultrasonic treatment on the mixed solution at room temperature for 10-15 minutes to obtain a uniform dark brown suspension; s2, continuously stirring for 5 minutes, transferring the precursor suspension into a high-pressure reaction kettle, and carrying out a solvothermal process for 22-24 hours; s3, the reaction kettle is cooled to the room temperature, a final product is centrifugally washed three times with deionized water and absolute ethyl alcohol respectively, then vacuum drying is conducted, and the SiW11Co / Cu2MoS4 composite material is obtained. By introducing a proper amount of SiW11Co, a rough structure is formed on the surface of CuMoS, the number of active sites is increased, the specific surface area is increased, and the catalytic performance and the stability are far better than those of a traditional CuS counter electrode and an unmodified CuMoS counter electrode.

This disclosure proposes a method for preparing a nitride photoelectrode with photoelectrocatalytic properties, comprising etching a nitride material with an irregular surface using an alkaline solution to obtain a nitride material with an irregular surface; and depositing a co-catalyst onto the nitride material with the irregular surface to obtain a nitride photoelectrode loaded with the co-catalyst.

Perovskite solar cells are provided that comprise a hole transport layer; an electron transport layer; and a perovskite layer between the hole transport layer and the electron transport layer, the perovskite layer comprising a perovskite and perovskite binding ligands, wherein the perovskite binding ligands each comprise an aryl group, a first perovskite binding group bound to the aryl group and bound to a first uncoordinated ion of the perovskite, a second perovskite binding group bound to the aryl group and bound to a second uncoordinated ion of the perovskite, wherein the perovskite binding ligands have a planar orientation relative to a surface of the perovskite between the first and second uncoordinated ions.

Disclosed is a compound having the following formula (1):as well as to the use of such as a dye sensitizer.Also disclosed is a dye sensitized solar cell including at least one compound of formula (I) as dye sensitizer.

A photoelectric conversion element (101) including a first electrode (2, 2a, 2b), a photoelectric conversion layer, and a second electrode (7, 7a, 7b). The photoelectric conversion layer includes a hole-transporting layer (6), and the hole-transporting layer (6) includes a tertiary amine pyridine compound and a secondary amine pyridine compound.

To provide a solar cell element in which the deterioration of a photoelectric conversion layer is suppressed without causing short-circuit due to etching.SOLUTION: A solar cell element includes a substrate 3, a first electrode 5a and a second electrode 5b formed apart from each other on the substrate 3, a photoelectric conversion layer formed in a region including the first electrode 5a and the second electrode 5b and including an electron transport layer 7a and an electron transport layer 7b, a perovskite layer 9a and a perovskite layer 9b, and a hole transport layer 11a and a hole transport layer 11b, a first back electrode 13a and a second back electrode 13b formed at positions respectively corresponding to the first electrode 5a and the second electrode 5b on the photoelectric conversion layer, and a connection electrode 15 connecting the first back electrode 13a and a part of the second electrode 5b, this part of the second electrode 5b and a part of the substrate 3 being exposed in a region where the photoelectric conversion layer does not exist and the first back electrode 13 and the second back electrode 13b do not exist.SELECTED DRAWING: Figure 8

The invention provides a preparation method of a composite material for a photo-anode, the photo-anode and a battery, the preparation method of the composite material comprises the following steps: (1) mixing citric acid, urea and ethylene glycol, stirring, heating, filtering and dialyzing, and freeze-drying a solution obtained after dialyzing to obtain carbon quantum dot powder; (2) dissolving thioacetamide and cobalt chloride pentahydrate into an aqueous solution of ethanol, adding the carbon quantum dot powder obtained in the step (1), stirring, carrying out hydrothermal treatment to obtain a precipitate, washing with absolute ethyl alcohol, and then centrifuging and drying to obtain carbon quantum dot doped cobalt sulfide powder; and (3) adding titanium dioxide and the carbon quantum dot doped cobalt sulfide powder obtained in the step (2) into an ethanol aqueous solution, stirring, carrying out hydrothermal treatment to obtain a precipitate, washing, centrifuging and drying to obtain a carbon quantum dot-cobalt sulfide-titanium dioxide composite material, namely the composite material for the photo-anode. According to the invention, higher photoelectric conversion efficiency is obtained.

An object of the present invention is to provide a composition for forming a carbon electrode capable of producing a carbon electrode suitable for production of a perovskite solar cell having more excellent photoelectric conversion efficiency, a carbon electrode capable of producing a perovskite solar cell having more excellent photoelectric conversion efficiency and a method for producing the same, a photoelectric conversion element having more excellent photoelectric conversion efficiency, a perovskite solar cell, and a method for producing a perovskite solar cell.SOLUTION: The content of the tin oxide particles is 3 to 24 mass% with respect to the content of the carbonaceous material, and the average particle size of the tin oxide particles is 2 to 200nm.SELECTED DRAWING: Figure 1

A photonic-organic electrochemical transistor (POECT), including a substrate, three terminals including a gate, a drain, and a source disposed over the substrate, wherein the space between the drain and the source forms a channel, and an electrolyte in fluid and electrical communication with the gate and the channel, wherein the channel is formed of a photoactive layer composed of donor-acceptor bulk-heterojunction interfaces.

The present invention relates to the field of photoelectrochemical conversion, and in particular to a microbial photoelectrochemical system, its construction method, and its application. The microbial photoelectrochemical system of the present invention comprises an anode chamber and a cathode chamber. The anode chamber is provided with an anode and a natural photosensitizer, and the cathode chamber is provided with a cathode and inoculated with a hybrid formed by combining microorganisms and a non-metallic photosensitizer. The anode chamber photosensitizer and cathode chamber hybrid are deposited on electrodes or discretely distributed in the electrode chamber. The microbial photoelectrochemical system of the present invention can achieve full-spectrum absorption of solar radiation and has excellent ability to generate and utilize photogenerated electrons and holes. It can be applied to fields such as water purification and low-molecular-weight hydrocarbon synthesis.

A photoelectric conversion element and a method for manufacturing the same are provided. [Solution] The photoelectric conversion element 1 has a first substrate 11 having optical transparency, a first electrode 12 arranged on the first substrate 11, a photoelectric conversion layer 20 containing semiconductor microparticles and dye molecules, a second electrode 32 that is the counter electrode of the first electrode 12, a second substrate 31 facing the first substrate 11 at a distance, a sealant 70 arranged between the first substrate 11 and the second substrate 31, and a carrier transport material that fills the area surrounded by the sealant 70, and is provided on the second substrate 31 side with a catalyst layer 40 and a porous layer 50 provided in contact with the catalyst layer.

The invention relates to an optical detector (110) for an optical detection, in particular, of radiation within the infrared spectral range, specifically, with regard to sensing at least one optically conceivable property of an object (112). More particular, the optical detector (110) may be used for determining transmissivity, absorption, emission, reflectance, and / or a position of at least one object (112). Further, the invention relates to a method for manufacturing the optical detector (110) and to various uses of the optical detector (110). The optical detector (110) comprises - an optical filter (114) having at least a first surface (116) and a second surface (118), the second surface (118) being located oppositely with respect to the first surface (116), wherein the optical filter (114) is designed for allowing an incident light beam (120) received by the first surface (116) to pass through the optical filter (114) to the second surface (118), thereby generating a modified light beam (122) by modifying a spectral composition of the incident light beam (120); - a sensor layer (128) comprising a photosensitive material (130) being deposited on the second surface (118) of the optical filter (114), wherein the sensor layer (128) is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor layer (128) by the modified light beam (122); and - an evaluation device (140) designed to generate at least one item of information provided by the incident light beam (120) by evaluating the sensor signal. The optical detector (110) constitutes an improved simple, cost-efficient and, still, reliable detector for detecting optical radiation, especially within the infrared spectral range, specifically with regard to sensing at least one of transmissivity, absorption, emission and reflectance. Hereby, the optical detector (110) is capable of effectively removing stray light as far as possible.

An energy storage device comprising a substrate comprising a groove having a first and a second face. A capacitor material in the groove. The first and the second face of the groove having a coat ofmetal. Wherein the coat of metal on the first face is not in electrical contact with the coat of metal on the second face.

A process for manufacturing a multi-cation perovskite layer (100) comprising: a) supplying a substrate (1) having a deposition face (2), b) deposition of a precursor solution comprising precursors including CsX, FAY, PbZ2, with X, Y and Z = I, Br, and an additive FACl, the molar ratio of cesium to lead being between about 4% and 22%, the molar ratio of FACl to lead being between 0.1% and 5%, and the perovskite layer (100) having a molecular formula of the form CsxFA(1-x+w)Pb(IyBr(1-y))3 with x between 0.04 and 0.22, y between 0 and 1 and w between 0.001 and 0.05, c) scanning the wet film (5) with an inert gas to crystallize the layer perovskite (100), and heat treatment such that the deposition face (2) has a temperature ranging from approximately 25°C to at least 80°C during step b). Figure for the abstract: Figure 2

A solar cell includes a first substrate, a first electrode layer, a first electron transport layer, a first photoelectric conversion layer, a first hole transport layer, a second electrode layer, a third electrode layer, a second electron transport layer, a second photoelectric conversion layer, a second hole transport layer, a fourth electrode layer, and a second substrate that are disposed in the order stated. The first photoelectric conversion layer includes a first perovskite compound, and the second photoelectric conversion layer includes a second perovskite compound. The first perovskite compound has a bandgap greater than a bandgap of the second perovskite compound.

The application discloses an ion gelatin hydrogel droplet-based light collection device and a preparation method and application thereof, relates to the technical field of light collection, and comprises an electrode module and a gelatin hydrogel functional layer which are sequentially arranged on a substrate module; the substrate module is a substrate sheet; the substrate sheet is any one of a flexible substrate sheet or a rigid substrate sheet; the electrode module is a metal electrode arranged on both sides of the gelatin hydrogel functional layer; and the gelatin hydrogel functional layer comprises ordinary hydrogel droplets and light-responsive hydrogel droplets. The light collection device can be prepared by using only a simple drop casting method, the device can be used for collecting various clean energy, realizes light collection and supports manufacturing of units with any size or shape, has the advantages of simple system, and still has output capacity after light is removed, and the difficulties of complex structure and poor biocompatibility in traditional light collection devices are solved.

The invention discloses a light collection device based on ionic gelatin hydrogel liquid drops and a preparation method and application thereof, and relates to the technical field of light collection, the light collection device comprises an electrode module and a gelatin hydrogel functional layer which are sequentially arranged on a substrate module; the substrate module is a substrate sheet, and the substrate sheet is any one of a flexible substrate sheet and a rigid substrate sheet; the electrode modules are metal electrodes arranged on the two sides of the gelatin hydrogel functional layer; the gelatin hydrogel functional layer comprises common hydrogel liquid drops and light response hydrogel liquid drops. The light collection device can be prepared only through a simple drop casting method, can be used for collecting and converting various clean energy sources, achieves light collection, supports manufacturing of units of any size or shape, has the advantage of being simple in system, still has the output capacity after illumination is removed, and solves the problems that a traditional light collection device is complex in structure and low in cost. The biocompatibility is poor, and the like.

This invention provides an artificial photosynthesis device that reconstitutes photosynthetic proteins, electron transport molecules, and oxidoreductases from purple bacteria and other organisms, and utilizes sunlight across a wide wavelength range, including near-infrared light. [Solution] The working electrode comprises a glass substrate 7, a transparent electrode 6a as a conductive substrate, a first lipid membrane laminated and fixed in a patterned region on the surface of the transparent electrode 6a, a second lipid membrane which is a fluid lipid membrane laminated in a region other than the first region on the surface of the transparent electrode 6a and contains photosynthetic protein 4a, photosynthetic protein 4b, photosynthetic protein 4c, photosynthetic protein 4d, photosynthetic protein 4e, electron transport molecule 3 and oxidoreductase, and an aqueous layer 5 in which at least the second lipid membrane is immersed. In the working electrode, electrons can be generated from light energy 8 in the second lipid membrane and electrical energy 9 can be extracted from the transparent electrode 6a.