32results about How to "Low ionization potential" patented technology

A nanowire light emitting device and a method of fabricating the same are provided. The nanowire light emitting device includes a first conductive layer on a substrate, a plurality of nanowires on the first conductive layer, each nanowire having a p-type doped portion and an n-type doped portion on both ends, a light emitting layer between the p-type doped portion and n-type doped portion, and a second conductive layer formed on the nanowires. The doped portions are formed by adsorbing molecules around a circumference thereof.

A nanowire light emitting device and a method of fabricating the same are provided. The nanowire light emitting device includes a first conductive layer formed on a substrate, a plurality of nanowires vertically formed on the first conductive layer, each of the nanowires having an n-type doped portion and a p-type doped portion, a light emitting layer between the n-type doped portion and the p-type doped portion, first and second conductive organic polymers filling a space corresponding to the p-type doped portion and the n-type doped portion, respectively, and a second conductive layer formed on the nanowires. The organic polymers dope the corresponding surface of the nanowires by receiving electrons from the corresponding surface of the nanowires or by providing electrons to the surface of the nanowires.

The invention discloses a boron film cathode of a neutron detector and a preparing method of the boron film cathode of the neutron detector. The boron film cathode of the neutron detector is detector cathode with good electrical properties and neutron sensitive performance. Conductive metal Al matrix is adopted for the cathode, and the surface of the cathode is coated with a neutron sensitive film. The neutron sensitive film comprises, by mass, 100 parts of boron powder, 15 parts to 25 parts of substance (the molecular formula of the substance is described in the instruction), 7 parts to 12 parts of curing agents and 30 parts to 40 parts of organic solvent. The boron film cathode of the neutron detector is simple in preparation, low in cost, high in adhesive force and good in uniformity, and the obtained detector is high in detection efficiency.

The present invention provides an organic electroluminescence device which: brings physical properties, that is, a low ionization potential, large band gap energy, high injection efficiency, and a high mobility into balance in an excellent manner; has high heat resistance; and shows high current efficiency and a long lifetime while maintaining good luminance/voltage characteristics and good current density/voltage characteristics, and a novel amine-based compound for realizing the device. The amine-based compound is of a specific structure containing a quinoxaline ring. The organic electroluminescence device includes an organic thin film layer composed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode. In the organic electroluminescence device, at least one layer of the organic thin film layer contains the amine-based compound alone or as a component of a mixture.

The invention discloses a triarylated amine and fluorene unit containing conjugated polymer as well as a preparation method and an application of the triarylated amine and fluorene unit containing conjugated polymer, relates to the triarylated amine and fluorene unit containing conjugated polymer and the preparation method and the application of the triarylated amine and fluorene unit containing conjugated polymer, and solves the technical problem of single performance of the conventional electrochromic material. The structural formula of the triarylated amine and fluorene unit containing conjugated polymer is shown in the description, wherein n is a positive integer. The preparation method of the triarylated amine and fluorene unit containing conjugated polymer is as follows: 1, synthesizing a triarylated amine monomer; 2, carrying out the suzuki reaction. The triarylated amine and fluorene unit containing conjugated polymer is applied to serving as the electrochromic material, electroluminescent material, the resistive memory material or the sensor functional material. The application range of the electrochromic material is expanded, an established fluorene-triarylated amine system fully combines the advantages of the triarylated amine and a fluorene unit and overcomes the defects of the triarylated amine and the fluorene unit, and the hole transfer capability is stronger, and the emission efficiency of a device is enhanced.

The invention belongs to the field of optoelectronic materials and discloses an organic semiconductor material containing metalloporphyrin-triphenylamine and a preparation method and application thereof. The organic semiconductor material containing metalloporphyrin-triphenylamine has a structural formula (I) shown in the specification, wherein in the formula, n is an integer from 1 to 100; R1, R2, R3 and R4 are H, C1-C32 alkyl, phenyl and alkylbenzene or alkoxy benzene containing one or more C1-C32; and M is a metal ion. The organic semiconductor material containing metalloporphyrin-triphenylamine has a wide light absorption range, thus improving the sunlight use ratio of the material. The material also has better heat stability and environmental stability. Besides, the preparation method is simple in process and easy to operate and control.

The invention provides a benzophenanthrene derivative and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. The provided benzophenanthrene derivative has excellent hole transport performance and high heat resistance stability, needle holes cannot be formed in a formed film easily and the formed film cannot be aged or deform easily, thefilm is applied to the organic light-emitting device as a hole transport material, the light-emitting efficiency of the device can be improved, the service life of the device is prolonged, and furthermore, the driving voltage of the device can be reduced. The provided benzophenanthrene derivative can further serve as a covering layer, and thus, the light-emitting efficiency of the device is improved.

The invention provides a voltage stabilizer for a direct-current/alternating-current high-voltage cable insulation material and a preparation method and application thereof. The voltage stabilizer has a structure as shown in a formula 1, the high-voltage cable insulation material with the voltage stabilizer introduced not only has excellent thermal performance and mechanical performance, but also can remarkably improve the electrical performance, and the crosslinking degree of the cable insulation material can be remarkably improved by adding the voltage stabilizer, the problems of poor compatibility with a base material polyethylene and easy migration can be effectively solved, and the voltage stabilizer is a universal voltage stabilizer with a cross-linking effect.

The invention relates to a conjugated polymer containing triarylamine and a fluorene unit and a preparation method and application of the conjugated polymer containing triarylamine and the fluorene unit, and solves the technical problem of single performances of the existing electrochromic material. The structural formula of the conjugated polymer containing triarylamine and the fluorene unit is as shown in the formula, wherein n is a positive integer. The preparation method of the conjugated polymer containing triarylamine and the fluorene unit disclosed by the invention comprises the following steps: 1, synthesizing a triarylamine monomer; 2, performing a Suzuki reaction. The conjugated polymer containing triarylamine and the fluorene unit disclosed by the invention is applied as an electrochromic material, an electroluminescence property material, a resistance memory material or a sensor functional material. The conjugated polymer containing triarylamine and the fluorene unit and the preparation method and application of the conjugated polymer containing triarylamine and the fluorene unit disclosed by the invention expand the application range of the electrochromic material, andan established fluorene-triarylamine system fully combines the advantages of triarylamine and the fluorene unit and overcomes the disadvantages of triarylamine and the fluorene unit, and has strongerhole transmitting capacity and enhances the emission efficiency of the device.

The invention discloses an organic electroluminescent compound. The general structural formula of the organic electroluminescent compound is as shown in a chemical formula 1 which is described in thespecification. The preparation method of the organic electroluminescent compound has the characteristics of simplicity and convenience in operation, low cost, environmental friendliness and the like.After the organic electroluminescent compound is applied as a light-emitting layer of an organic electroluminescent device to the organic electroluminescent device, the light-emitting efficiency of the device is improved, the service life of the device is prolonged, and the driving voltage of the device is reduced.

The invention provides a triphenylamine-benzodi(benzothiadiazole) containing copolymer, preparation and application thereof. The triphenylamine-benzodi(benzothiadiazole) containing copolymer is a compound P with a structural formula shown as the specification, wherein R1 and R2 are alkyl of C1-C20, R3 is H, alkyl of C1-C20 or alkoxy of C8, and n is an integer ranging from 1 to 100. The triphenylamine-benzodi(benzothiadiazole) containing copolymer contains a new benzodi(benzothiadiazole) conjugated unit, the absorption spectrum of the copolymer undergoes red shift and has a high matching degree with a solar spectrum. Meanwhile, with a planar conjugated structure, the copolymer provided by the invention has the advantages of high charge carrier migration rate and high energy conversion efficiency, simple and controllable preparation method, and has good application prospects in polymer solar cells, organic light-emitting devices and other photoelectric material fields.

The invention discloses a coated welding wire suitable for backing welding of nickel-saving austenitic stainless steel and a preparation method of the coated welding wire. The invention belongs to the technical field of welding materials. The invention aims to solve the technical problems that the working efficiency is low, the production cost is high and the welding quality is difficult to control due to the fact that the inner side of a pipeline must be filled with argon for protection in the existing method for carrying out backing welding on the nickel-saving austenitic stainless steel by adopting solid welding wire argon arc welding. The deposited metal of the coated welding wire comprises the following chemical components in percentage by mass: less than or equal to 0.05% of C, less than or equal to 0.90% of Si, 3.50%-5.00% of Mn, less than or equal to 0.020% of P, less than or equal to 0.020% of S, 15.00%-17.00% of Cr, 1.50%-2.50% of Ni, less than or equal to 0.55% of Mo, less than or equal to 1.50% of Cu, 0.10%-0.20% of N and the balance of Fe. The coated welding wire is composed of a coating and a stainless steel core wire, the coating is prepared from coating powder and sodium water glass, the coating powder is formed by mixing an arc stabilizer, a slag former, a lubricant and the balance of alloy powder, and the arc stabilizer is a mixture of potassium titanate and sodium carbonate. The welding wire is high in backing welding efficiency and low in cost.

The invention discloses an organic electroluminescent compound, a preparation method thereof and an organic electroluminescent device containing the organic electroluminescent compound. The structural general formula of the organic electroluminescent compound is as follows: the organic electroluminescent compound regulates the position or activity of a substituent group through coordination of a heterocyclic ligand, and in addition, an amine unit on the complex has lower ionization potential, better electron donating property and higher hole mobility; according to the organic electroluminescent compound, the driving voltage of a device can be reduced, the service life is prolonged, and the luminous efficiency is improved.

The invention relates to a copolymer material containing carbazole porphyrin-triphenylamine and a preparation method and application thereof. The copolymer material has a structural formula (III) shown in the specification, wherein n is an integral number of between 1 and 100; R1 and R2 are H or alkyl groups having 1 to 32 carbon atoms. In the copolymer material with the structural formula, the advantages of carbazole, porphyrin and triphenylamine compounds are fully utilized, so the copolymer material has the high energy conversion efficiency, and can be widely applied to fields of organic semiconductor materials, polymer solar cells, organic electrofluorescence, organic field effect transistors, organic laser storage, organic non-linear materials, organic laser and the like.

The invention belongs to the technical field of welding materials, and particularly relates to a flux-cored wire for surfacing wear-resistant alloy on the surface of a squeeze roller, the flux-cored wire comprises flux core powder and skin, and the flux core powder comprises the following chemical components: 15-18% of cesium carbonate powder with copper-plated surface, 8-12% of hydroxyl nickel powder, 6-8% of rutile powder, 2-3.5% of feldspar powder, 5-9% of silicon carbide whisker, 5-8% of manganese powder, 4-6% of silicon iron powder and the balance of FHT100. 25 reduced iron powder. Welding can be carried out under the plateau climate condition, electric arc combustion is stable, surfacing alloy components are uniform, and defects such as air holes, cracks and slag inclusion are avoided; the surfacing alloy is high in hardness and uniform in distribution, a hard phase is firmly combined with a matrix, and the phenomena of falling and cracking are avoided. The flux-cored wire is suitable for on-line hardfacing of the squeeze roller under the working conditions of mines and the like, prolongs the service life of a surfacing layer on the surface of the squeeze roller, and is an innovation in the aspect of flux-cored wires for surfacing wear-resistant alloy.

The invention relates to a hole organic electroluminescent compound as well as a preparation method and application thereof; the compound has the structural formula defined in the specification, wherein m and n are integers from 0 to 1 and are not 0 at the same time; the ring A and the ring B are adamantane and do not exist at the same time; X and Y independently represent a connection bond, -O-,-S-, -C(R3)(R4), -N(R5)-, -Si(R6)(R7)-, and at most one of X and Y is a connection bond; R1 and R2 are the same or different from each other, and are each independently hydrogen, deuterium, halogen, cyano, carboxyl, nitro, hydroxyl, amino, sulfonic acid group, sulfonyl, phosphate group, phosphoryl, silicon group and borane group; L1 and L2 are a link bond, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted three-membered-10-membered heteroaryl group; and R3, R4, R5, R6, R7, R8, R9, R10 and R11 are the same as or different from each other and are each independently a substituted or unsubstituted C1-C10 alkyl group. A device prepared from the compound provided by the invention has excellent current efficiency, low driving voltage and long service life.