58results about How to "Good for film forming" patented technology

The invention discloses a fused ring thiophene organic photoelectric material and preparation methods and application thereof. The material is a compound. A first preparation method of the fused ring thiophene organic photoelectric material comprises the following steps of: respectively performing a condensation reaction of two raw materials and malononitrile under the action of a catalyst; and performing a Stille coupling reaction of two condensation products and the other raw material under the catalysis of an organic palladium catalyst to obtain the fused ring thiophene organic photoelectric material. A second preparation method of the fused ring thiophene organic photoelectric material comprises the following steps of: performing the Stille coupling reaction under the catalysis of the organic palladium catalyst; and then performing the condensation reaction of a coupling product and the malononitrile to obtain the fused ring thiophene organic photoelectric material. The fused ring thiophene organic photoelectric material is applied to the manufacturing of organic solar cell devices, organic field effect transistors, organic electroluminescent devices and the like. The material can be well matched with an emission spectrum of sunlight and has high photoelectric conversion efficiency, better thermal stability and environment stability, simple preparation methods and low process requirements.

The invention discloses a perylene tetracarboxylic diimide copolymer containing a dithieno quinoxaline unit as well as a preparation method and application thereof. The copolymer is shown in the specification. The preparation method comprises adding a perylene tetracarboxylic diimide dibromide and a 6,9-bis(tributyl tin)-dithieno[3,2-f:2',3'-h]quinoxaline derivative in an organic solvent, adding a catalyst, carrying out Stille coupling reaction at the temperature of 50-120 DEG C for 24-72 hours, and refining to obtain the copolymer. The copolymer disclosed by the invention can be applied to manufacture of polymer solar cell devices, organic field effect transistors, organic electroluminescent devices, organic light storage devices, organic nonlinear materials or organic laser devices. Thecopolymer disclosed by the invention has the advantages of good solubility, strong light absorbency and excellent charge transfer performance, the absorption range of the copolymer can extend to a near infrared region, and the sunlight utilization rate can be increased; and the preparation method has a simple synthesis route and a low process requirement.

The invention belongs to the field of photoelectronic materials, and discloses an organic semiconductor material containing dithienothiophene and thienopyrryldiketone units, and a preparation method and application thereof. The organic semiconductor material has the following general formula (I), wherein R1, R2 and R3 are respectively a C1-C20 alkyl group, and n is a whole number which is greater than 1 and less than or equal to 100. Compared with the prior art, the alkyl group is introduced to enhance the solubility and molecular weight of the product, thereby implementing a spin coating polymer or spin coating oligomer. Since the polymer formed by the thienopyrryldiketone monomers and thienothiophene monomers can form a very strong donor-receptor structure, the stability of the material is enhanced, and the band gap of the material can be easily reduced, thereby widening the sunlight absorption range and enhancing the photoelectric conversion efficiency.

The invention which belongs to the field of photoelectronic materials discloses a porphyrin-pyrrolopyrrole copolymer containing carbazole, a preparation method thereof and an application thereof. The structural formula of the copolymer is represented by formula (I); and in the formula (I), n is an integer between 1 and 100, and R1, R2, R3, and R4 are hydrogen, C1-C32 alkyl, phenyl, or C1-C32 alkylphenyl or alkyloxyphenyl. Groups which allow the solubility to be increased, such as alkyl, are introduced to a porphyrin-thiophenethiadiazole copolymer containing carbazole provided in the inventionat the 2-position and the 5-position to improve the solubility and the film forming ability of a material (the porphyrin-thiophenethiadiazole copolymer), and substituents at the 3-position and the 6-position are changed to regulate the light absorption range of pyrrolopyrrole dione, so the application range of the porphyrin-thiophenethiadiazole copolymer and pyrrolopyrrole dione in fields of organic solar cells and the like is enlarged; and simultaneously long chain alkyl is introduced to improve the solubility of the material.

The invention provides a copolymer containing dithieno (3,2-b:2',3'-d) thiophene-silole (2,3-b:3',2'-d) (diazosulfide) as well as a preparation method and an application of the copolymer. The copolymer provided by the invention is a copolymer P which has the general formula shown in the specification, wherein in the formula, R1 and R2 represent alkyl groups of C1 to C20; R3 and R4 represent H or alkyl groups of C1 to C20; n represents an integer between 1 and 100. The copolymer contains a new silole (2,3-b:3',2'-d) (diazosulfide) conjugation unit which has a high matching degree with solar spectrum and is of a plane conjugation structure at the same time, so that the charge carrier migration rate is high. Thus, the energy conversion efficiency is improved. A preparation method of the copolymer is simple and controllable. As a result, the copolymer provided by the invention has good application prospects in the fields of polymer solar cells, organic electroluminescent devices and other photoelectric materials.

The invention provides a copolymer containing dibenzothiophene-silole-di(diazosulfide) as well as a preparation method and an application thereof. The copolymer containing dibenzothiophene-silole-di(diazosulfide) is a copolymer P with the general formula as shown in the specification, wherein R1 and R2 are C1-C20 alkyls, R3 is H or C1-C20 alkyls, and n is an integer between 1 and 100 in the formula. The copolymer containing the dibenzothiophene-silole-di(diazosulfide) disclosed by the invention contains a new silole-di(diazosulfide) conjugated unit, is high in matching degree with a solar spectrum, and simultaneously is in a planer conjugate structure, and high in vector migration rate, the energy conversion efficiency is improved, and the preparation method is simple and controllable, and has a good application prospect in the photoelectric material fields such as a polymer solar cell, an organic light-emitting device and the like.