11 results about "Polymer photovoltaics" patented technology

This utility model relates to the field of spray painting equipment technology and discloses a spray painting device for polymer photovoltaic frames. The device includes a housing with supporting feet connected to both sides of its bottom. A hinged door is located at the front of the housing. A supporting base frame is located at the bottom of the housing. A partition plate is horizontally connected to the top of the housing, and a paint bucket is located on top of the partition plate. An inlet is located at the upper left end of the paint bucket, and the upper end of the inlet passes through the top of the housing. A stirring shaft is located inside the paint bucket, and the upper end of the stirring shaft passes through the top of the paint bucket and is connected to a first motor via a coupling. This utility model, by setting up a supporting base frame, a motor mounting base, a second motor, a second coupling, a transmission shaft, and a second bearing, utilizes the interaction between these components to achieve rotation of the polymer photovoltaic frame, improving the uniformity of the spray painting process and thus enhancing the spray painting effect and efficiency.

The application belongs to the field of organic photovoltaics, and relates to a kind of polymer photovoltaic material and its preparation method and application. Double bromide compound A and double side tin compound B are subjected to Stille cross coupling reaction under the action of palladium catalyst, and the polymer photovoltaic material is obtained. The polymer photovoltaic material prepared by the application has an ultra-wide absorption spectrum range from 300 nm to 1200 nm. Such material exhibits an ultra-wide spectral range and a high extinction coefficient, and embodies excellent light absorption capacity. The strong light absorption capacity of the polymer photovoltaic material prepared by the application will help to improve the device efficiency of organic photovoltaics and improve the energy conversion efficiency of the device. The polymer photovoltaic material prepared by the application provides reference value for the design of functional materials in many fields of organic photoelectricity and solar energy utilization and conversion.

This invention discloses a class of porphyrin-based A-D-A type polymer photovoltaic materials, their preparation methods, and applications. The invention utilizes a porphyrin-DPP system constructed through Sonogashira coupling, placing the donor unit at the center of the A-D-A structure. This A-D-A structure more effectively enhances the intramolecular push-pull electronic effect, promoting intramolecular charge transfer and thus significantly broadening and redshifting the light absorption range of the polymer. Furthermore, the A-D-A structure facilitates more ordered and compact intermolecular stacking, promoting the expansion of π-π conjugation and potentially increasing the carrier mobility of the material. This lays the material foundation for obtaining higher short-circuit current densities and fill factors in devices.

An inverted polymer photovoltaic cell (or solar cell) includes an anode;a first anodic interlayer (buffer layer) based on PEDOT:PSS [poly(3,4-ethylenedioxythiophene):polystyrene sulfonate];an active layer having at least one photoactive organic polymer as an electron donor and at least one electron acceptor organic compound;a cathodic interlayer (buffer layer);and a cathode. A second anodic interlayer (buffer layer) includes at least one heteropolyacid and, optionally, at least one amino compound is placed between the first anodic interlayer (buffer layer) and the active layer.The inverted polymer photovoltaic cell (or solar cell) shows good values of photoelectric conversion efficiency (power conversion efficiency—PCE) (η) and, in particular, a good level of adhesion between the different layers, more specifically between the active layer and the first anodic interlayer (buffer layer).

The present application relates to an organic photovoltaic polymer donor material, a preparation process and application, and belongs to the technical field of polymer photovoltaic materials. Three organic photovoltaic polymer donor materials with different molecular weights and narrow distribution are prepared by optimizing the post-treatment process of the crude product of the organic photovoltaic polymer donor material. By selecting a plurality of solvents with branching and steric hindrance for compounding, the polarity, steric hindrance effect and branching effect of the solvents are utilized to realize efficient separation of the three organic photovoltaic polymer donor materials with different molecular weights. The organic photovoltaic polymer donor material prepared by the present application has good photoelectric conversion efficiency, and the photoelectric conversion efficiency of the low-molecular-weight, medium-molecular-weight and high-molecular-weight organic photovoltaic polymer donor materials is higher than that of the organic photovoltaic polymer donor material without separation and purification.

The invention belongs to the field of organic photoelectricity, and discloses a preparation method and application of an anchoring self-assembly polymer semiconductor transmission layer material containing a crosslinking unit. The chemical structural formula of the anchoring self-assembly polymer semiconductor transmission layer material containing the cross-linking unit meets the general formula of the following formula 1 or formula 2, Ar1, Ar2 and Ar3 units are common aromatic ring units or heteroaromatic ring units, B2, B3 and common alkyl chain or alkoxy chain units, A2 is a common acid unit, linker is a cross-linkable group, the polymerization degree n is 5-300, x, y and z represent repetitive units, and n is a positive integer. 0 < x < 1, 0 < y < 1, 0 < z < 1, and x + y + z = 1. According to the invention, the cross-linking unit is introduced, so that the optimal form can be locked in a cross-linking network after being formed, and the optimal state can be kept in subsequent processing, device working and long-term use, so that the aging performance and environmental stability of the polymer photovoltaic device can be improved.

Inverted polymer photovoltaic cell (or solar cell) comprising: - an anode; - a first anode interlayer (buffer layer) based on PEDOT:PSS [poly(3,4-ethylenedioxythiophene):polystyrene sulfonate]; - an active layer comprising at least one photoactive organic polymer as electron donor and at least one electron acceptor organic compound; - a cathode interlayer (buffer layer); - an anode; wherein a second anode interlayer (buffer layer) comprising at least one heteropolyacid and optionally at least one amino compound is interposed between said first anode interlayer (buffer layer) and said active layer. Said inverted polymer photovoltaic cell (or solar cell) shows good values of photoelectric conversion efficiency (power conversion efficiency - PCE) (η) and, in particular, good levels of adhesion between the different layers, more particularly between the active layer and said first anode interlayer (buffer layer).

The invention relates to the field of photovoltaic materials, in particular to an ethylene-butylene polymer photovoltaic packaging adhesive film and a preparation method thereof. The invention provides an ethylene-butylene polymer photovoltaic packaging adhesive film which is prepared from the following raw materials in parts by mass: 100 parts of matrix resin, 0.5-3 parts of polybutadiene grafted silane, 0.1-2 parts of a free radical thermal initiator, 0.1-0.5 part of an assistant crosslinker, 0.2-2 parts of a coupling agent, 0.2-1 part of an antioxidant, 0.1-1 part of an ultraviolet absorbent, 0.1-1 part of a light stabilizer and 0.5-5 parts of a tackifier. According to the ethylene-butylene polymer photovoltaic packaging adhesive film provided by the invention, on the premise of ensuring the crosslinking degree of the adhesive film, the use amount of the assistant crosslinking agent is reduced, meanwhile, the mobility of the assistant in the adhesive film is reduced, and the light transmittance and cohesiveness of the adhesive film are ensured.

The invention provides a silane polymer, an adhesive film for packaging a photovoltaic module and application of the adhesive film. The silane polymer comprises a substance with a structural formula shown as a formula (I), and in the formula (I), R1 is methyl, ethyl or isopropyl; r2 is a cyclobutadienyl group, a cyclooctadiene group, a phenyl group or a naphthyl group; r < 3 > is a methacryloyloxy group, an aminopropyl group, a gamma-(2, 3-epoxypropoxy) propyl group or 1-olefin; in the formula (I), a is equal to 1-3, b is equal to 1-5, c is equal to 0-5, a + b + c is equal to 3-15, and a, b and c are all positive integers. When the silane polymer provided by the invention is used as a silane coupling agent to prepare a photovoltaic adhesive film, the aging resistance (damp heat / ultraviolet and the like) of the adhesive film obtained by using the polymer is improved.

The invention relates to an organic photovoltaic polymer donor material, a preparation process and application, and belongs to the technical field of polymer photovoltaic materials. Three organic photovoltaic polymer donor materials with different molecular weights and narrow distribution are prepared by optimizing a post-treatment process of a crude product of the organic photovoltaic polymer donor material. Various solvents with branching and steric hindrance are selected for compounding, and the polarity, steric hindrance effect and branching effect of the solvents are utilized to realize efficient separation of three organic photovoltaic polymer donor materials with different molecular weights. The prepared organic photovoltaic polymer donor material has good photoelectric conversion efficiency, and the photoelectric conversion efficiency of organic photovoltaic polymer donor materials with low molecular weight, medium molecular weight and high molecular weight is higher than that of organic photovoltaic polymer donor materials which are not separated and purified.

The utility model relates to the technical field of powder spraying devices, and discloses a powder spraying device for processing a polymer photovoltaic frame, which comprises a powder spraying chamber, a hook is arranged at the top in the powder spraying chamber, a chamber door is arranged on the front end face of the powder spraying chamber, an air pipe is arranged at the bottom in the powder spraying chamber, and a fan is mounted on the air pipe. An automatic lifting device is arranged on the left side of the powder spraying chamber, an electrostatic powder spraying gun is installed on the automatic lifting device, a powder supply barrel is arranged on the left side of the automatic lifting device, a high-voltage electrostatic generator is arranged above the powder supply barrel, and the powder supply barrel is connected with the electrostatic powder spraying gun through a powder supply pipeline. The cyclone separator, the dust removal box body, the conveying pipeline, the air filter screen, the activated carbon filter layer, the air pipe and the fan are arranged and are matched with one another, so that powder can be recycled, and resources are saved.