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30results about How to "Improving Phosphorescent Quantum Efficiency" patented technology

Organic electrofluorescent iridium complex material

The present invention is organic electrofluorescent iridium complex material in the structure as shown and with radical possessing great steric hindrance introduced to the ligand. The organic electrofluorescent iridium complex material has reduced influence on the light emitting efficiency of device caused by phosphorescence quenching and phosphorescence life one time lowered than available similar material.
Owner:SICHUAN UNIV

Preparation and mechanism research of efficient phosphorescent pure organic long-afterglow material

The invention belongs to the field of pure organic long-afterglow materials and in particular relates to preparation and mechanism research of an efficient phosphorescent pure organic long-afterglow material. The material has the characteristics that (1) the material is synthesized by two steps, the raw materials are cheap and the synthetic method is simple; (2) the synthesized material is long inafterglow service life and high in quantum efficiency; and (3) a policy of improving the phosphorescent quantum efficiency is provided as different halogen bonds are formed by isomerization. The material provided by the invention has a huge potential in the fields of organic electroluminescence devices and counterfeiting prevention. It can be expected that the organic light-emitting materials area type of novel long-afterglow materials with huge commercialized potential.
Owner:NANJING UNIV OF TECH

Phosphorescent polymer material as well as preparation method and application thereof

ActiveCN111848927AHigh phosphorescence quantum yieldEasy to prepareLuminescent compositionsPolymer chemistryPolymer thin films
The invention provides a phosphorescent polymer material as well as a preparation method and application thereof. The invention relates to the technical field of organic light-emitting materials and anti-counterfeiting materials; a pure organic polymer material having high-efficiency and long-service-life room-temperature phosphorescent property can be obtained, the phosphorescence service life isgreatly prolonged, the phosphorescence quantum efficiency is improved, the preparation is simple, the raw materials are cheap, and the stability is good. According to the method, non-radiative attenuation of various organic phosphorescent bodies is effectively inhibited through a compact three-dimensional epoxy polymer network, so that ultra-long service life and high quantum yield are realized in a polymer film at the same time; the absolute phosphorescent quantum yield of the prepared phosphorescent polymer material is 8.35% or above, and the phosphorescent lifetime is 2.28 s or above; andthe phosphorescent property retention time at room temperature is 7 s or longer. The phosphorescent polymer material provided by the technical scheme provided by the invention is suitable for the preparation process of the room-temperature phosphorescent material.
Owner:UNIV OF SCI & TECH BEIJING

Metal organic light-emitting material and application thereof in OLED (organic light-emitting diode) device

The invention relates to the technical field of organic electroluminescent display, particularly discloses a metal organic light-emitting material, and also discloses an application of the metal organic light-emitting material in an organic electroluminescent device. The metal organic light-emitting material provided by the invention has a structure as shown in the specification. The electroluminescent device prepared from the metal organic light-emitting material disclosed by the invention shows excellent performances of high purity, high brightness and high efficiency.
Owner:北京燕化集联光电技术有限公司

Blue ray organic electroluminescent material and preparation method and application thereof

The invention belongs to the field of photoelectric materials, and in particular relates to a blue ray organic electroluminescent material with the structural formula shown as P, wherein R is hydrogen atom or C1-C20 alkyl. The blue ray organic electroluminescent material has higher LUMO (lowest unoccupied molecular orbital) energy level and lower HOMO (highest occupied molecular orbital) energy level, is conducive to blue shift of material luminescent wavelength, and also has higher phosphorescence quantum efficiency and better dissolution properties and processing properties. The invention also provides a preparation method of the blue ray organic electroluminescent material and application of the blue ray organic electroluminescent material in organic electroluminescent devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Blue ray organic electroluminescent material and preparation method and application thereof

The invention belongs to the field of photoelectric materials, and in particular relates to a blue ray organic electroluminescent material with the structural formula shown as P, wherein R is hydrogen atom or C1-C20 alkyl. The blue ray organic electroluminescent material has higher LUMO (lowest unoccupied molecular orbital) energy level and lower HOMO (highest occupied molecular orbital) energy level, is conducive to blue shift of material luminescent wavelength, and also has higher phosphorescence quantum efficiency and better dissolution properties and processing properties. The invention also provides a preparation method of the blue ray organic electroluminescent material and application of the blue ray organic electroluminescent material in organic electroluminescent devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Ionic type phosphorescent Ag6Cu complex and its preparation method and use

InactiveCN105503949AStrong phosphorescent emissionHigh phosphorescent quantum yieldGroup 5/15 element organic compoundsSolid-state devicesArylHalogen
The invention relates to an ionic type phosphorescent Ag6Cu complex and its preparation method and use. The ionic type phosphorescent Ag6Cu complex has a structural formula of [Ag6Cu{HC(PPh2)3}2(C[triple-bond]CR)3{Ph2P(=X)X}3]<+>A<n->1 / n, wherein X represents the same or different groups of O, S and Se, R represents the same or different groups of aryl, heterocyclic aryl and -aryl-heterocyclic aryl, the heterocyclic aryl and aryl can be replaced through one or more substituents, the substituents are respectively selected from alkyl, alkenyl, alkynyl, alkyloxy, amino, halogen, halogenated alkyl and aryl, and A<n-> represents ClO<4->, PF<6->, SbF<6->, BF<4-> or SiF6<2-> and n is 1 or 2. The invention also relates to an organic light-emitting diode and its preparation method and use. The phosphorescent metal complex is a doped luminescent layer. The prepared organic light-emitting diode produces high performance organic electroluminescence and can be used for panel display.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Organic blue light electroluminescent material as well as preparation method and application of organic blue light electroluminescent material

InactiveCN104418907ALower LUMO levelImproved blue light emitting performanceIndium organic compoundsSolid-state devicesQuantum efficiencyHydrogen atom
The invention belongs to the field of photoelectric materials and particularly relates to an organic blue light electroluminescent material with the structural formula as shown in the figure p, wherein r is a hydrogen atom, c1-c20 alkyl or c1-c20 alkoxy. The organic blue light electroluminescent material has relatively high lumo energy level and relatively low homo energy level so as to be beneficial to blue shift of light emitting wavelength of the organic blue light electroluminescent material; and the organic blue light electroluminescent material also has relatively high phosphorescent quantum efficiency as well as relatively good dissolving property and processability. The invention also provides a preparation method of the organic blue light electroluminescent material and application of the organic blue light electroluminescent material to an organic electroluminescent device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Iridium complex containing benzimidazole structure and application thereof

ActiveCN112321647AReduce the tendency of high temperature thermal decompositionImprove thermal stabilityIndium organic compoundsSolid-state devicesIridiumOrganic electroluminescence
The invention relates to the technical field of organic electroluminescent display, particularly discloses a novel iridium complex containing a benzimidazole structure, and also discloses applicationof the iridium complex in an organic electroluminescent device. The iridium complex containing a benzimidazole structure provided by the invention has a structure as shown in a general formula (I). The iridium complex containing a benzimidazole structure is applied to an organic electroluminescent device as an organic electrophosphorescent material, and the prepared electroluminescent device showsexcellent performances of high purity, high brightness and high efficiency.
Owner:北京燕化集联光电技术有限公司

A long afterglow material and its preparation method and application

ActiveCN111154480BOvercome the defect of not being able to obtain afterglowSolution to short lifeImage data processing detailsCommerceQuantum efficiencyHeteroatom
The invention provides a long afterglow material and its preparation method and application. The long-lasting material is composed of carbon dots in the matrix, and is in a glassy state, and has the properties of fluorescence, delayed fluorescence and phosphorescence; the material has longer life, higher phosphorescence quantum efficiency, and better stability, and has been successfully fabricated from Heteroatom carbon dots have produced a metal-free afterglow material with a lifetime of up to 2682ms and a phosphorescent quantum efficiency of up to 17.5%. The present invention also provides a preparation method of the long afterglow material. The carbon dots and the matrix are subjected to one-step heat treatment to form a glassy state. The method has universal adaptability, and the obtained material has better phosphorescence effect, simple operation, low cost, It is green and environmentally friendly, has a wide range of applications, and can realize mass production. At the same time, the long afterglow material has achieved good results in the application of three-mode anti-counterfeiting technology and information encryption, and has broad application prospects in the field of optoelectronics, especially in the fields of anti-counterfeiting and information encryption technologies.
Owner:SOUTH CHINA AGRI UNIV

Thianthrene oxide-based yttrium complex phosphorescent luminescent materials and preparation methods thereof

The invention discloses thianthrene oxide-based yttrium complex phosphorescent luminescent materials and preparation methods thereof. The thianthrene oxide-based yttrium complex phosphorescent luminescent materials have general structural formulas shown in the description. The preparation methods comprise that an organic ligand containing a strong electron-withdrawing thianthrene oxide functionalgroup or other organic ligands and antimony trichloride undergo a reaction to produce a high electron injection transmission iridium complex phosphorescent material with phosphorescence quantum efficiency of 95% or more. The yttrium complex phosphorescent luminescent materials solve the problem that the traditional luminescent material has low phosphorescence quantum efficiency and weak electron injection transmission ability, and have an important application value in preparation of high performance organic light emitting diodes.
Owner:山西绿普光电新材料科技有限公司

Blue ray organic electroluminescent material and preparation method and application thereof

The invention belongs to the field of photoelectric materials, and in particular relates to a blue ray organic electroluminescent material with the structural formula shown as P, wherein R is hydrogen atom or C1-C20 alkyl. The blue ray organic electroluminescent material has higher LUMO (lowest unoccupied molecular orbital) energy level and lower HOMO (highest occupied molecular orbital) energy level, is conducive to blue shift of material luminescent wavelength, and also has higher phosphorescence quantum efficiency and better dissolution properties and processing properties. The invention also provides a preparation method of the blue ray organic electroluminescent material and application of the blue ray organic electroluminescent material in organic electroluminescent devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Blue ray organic electroluminescent material and preparation method and application thereof

The invention belongs to the field of photoelectric materials, and in particular relates to a blue ray organic electroluminescent material with the structural formula shown as P, wherein R is hydrogen atom or C1-C20 alkyl or C1-C20 alkoxy. The blue ray organic electroluminescent material has higher LUMO (lowest unoccupied molecular orbital) energy level and lower HOMO (highest occupied molecular orbital) energy level, is conducive to blue shift of material luminescent wavelength, and also has higher phosphorescence quantum efficiency and better dissolution properties and processing properties. The invention also provides a preparation method of the blue ray organic electroluminescent material and application of the blue ray organic electroluminescent material in organic electroluminescent devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Compound containing 1, 3-diketone ligand, application of compound and organic electroluminescent device

The invention relates to the field of organic electroluminescent devices, and discloses a compound containing a 1, 3-diketone ligand, application of the compound and an organic electroluminescent device. The compound has a structure as shown in Ir (LA) (LB) 2, LA has a structure as shown in a formula (IA), and LB is a structure as shown in a formula (IB), a structure as shown in LB310, a structure as shown in LB311, a structure as shown in LB312, a structure as shown in LB313 or a structure as shown in LB314. The compound containing the 1, 3-diketone ligand provided by the invention has the advantages of small synthesis difficulty and easy purification, has excellent luminescence performance when being used as an organic electrophosphorescent material, can prolong the service life of a device, can increase the solubility of the phosphorescent material, and can reduce the probability of triplet state-triplet state quenching.
Owner:BEIJING GREEN GUARDEE TECH

Organic electrophosphorescent light-emitting material and application thereof

ActiveCN112175016AReduce the tendency of high temperature thermal decompositionImprove thermal stabilityIndium organic compoundsSolid-state devicesOrganic electroluminescenceOrganic chemistry
The invention relates to the technical field of organic electroluminescent display, particularly discloses a novel organic electrophosphorescent light-emitting material, and also discloses an application of the novel organic electrophosphorescent light-emitting material in an organic light-emitting device. The organic electrophosphorescent light-emitting material provided by the invention has a structure as shown in a general formula (I) in the specification. The organic electrophosphorescent light-emitting material is applied to the organic light-emitting device, and the prepared light-emitting device shows excellent performances of high purity, high brightness and high efficiency.
Owner:北京燕化集联光电技术有限公司

Organic blue light electroluminescent material as well as preparation method and application of organic blue light electroluminescent material

The invention belongs to the field of photoelectric materials and particularly relates to an organic blue light electroluminescent material with the structural formula as shown in the figure p, wherein r is a hydrogen atom, c1-c20 alkyl or c1-c20 alkoxy. The organic blue light electroluminescent material has relatively high lumo energy level and relatively low homo energy level so as to be beneficial to blue shift of light emitting wavelength of the organic blue light electroluminescent material; and the organic blue light electroluminescent material also has relatively high phosphorescent quantum efficiency as well as relatively good dissolving property and processability. The invention also provides a preparation method of the organic blue light electroluminescent material and application of the organic blue light electroluminescent material to an organic electroluminescent device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Sulfur-containing organic electrophosphorescent luminescent material and application thereof

ActiveCN112341499AReduce the tendency of high temperature thermal decompositionImprove thermal stabilityIndium organic compoundsSolid-state devicesOrganic electroluminescenceOrganic chemistry
The invention relates to the technical field of organic electroluminescent display, particularly discloses a novel sulfur-containing organic electrophosphorescent luminescent material, and also discloses application of the sulfur-containing organic electrophosphorescent luminescent material in an organic electroluminescent device. The sulfur-containing organic electrophosphorescent luminescent material provided by the invention has a structure as shown in a general formula (I) in the description. The organic electrophosphorescent luminescent material is applied to an organic electroluminescentdevice, and the prepared electroluminescent device shows excellent performances of high purity, high brightness and high efficiency.
Owner:北京燕化集联光电技术有限公司

Compound containing 1, 3-diketone ligand, application of compound and organic electroluminescent device

The invention relates to the field of organic electroluminescent devices, and discloses a compound containing a 1, 3-diketone ligand, application of the compound and an organic electroluminescent device. The compound has a structure as shown in Ir (LA) (LB) 2, LA has a structure as shown in a formula (IA), and LB is a structure as shown in a formula (IB), a structure as shown in LB310, a structure as shown in LB311, a structure as shown in LB312, a structure as shown in LB313 or a structure as shown in LB314. The compound containing the 1, 3-diketone ligand provided by the invention has the advantages of small synthesis difficulty and easy purification, has excellent luminescence performance when being used as an organic electrophosphorescent material, can prolong the service life of a device, can increase the solubility of the phosphorescent material, and can reduce the probability of triplet state-triplet state quenching.
Owner:BEIJING GREEN GUARDEE TECH

Organic blue light electroluminescent material as well as preparation method and application of organic blue light electroluminescent material

The invention belongs to the field of photoelectric materials and particularly relates to an organic blue light electroluminescent material with the structural formula as shown in the figure p, wherein r is a hydrogen atom, c1-c20 alkyl or c1-c20 alkoxy. The organic blue light electroluminescent material has relatively high lumo energy level and relatively low homo energy level so as to be beneficial to blue shift of light emitting wavelength of the organic blue light electroluminescent material; and the organic blue light electroluminescent material also has relatively high phosphorescent quantum efficiency as well as relatively good dissolving property and processability. The invention also provides a preparation method of the organic blue light electroluminescent material and application of the organic blue light electroluminescent material to an organic electroluminescent device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

OLED (Organic Light Emitting Diode) device prepared by taking di (8-hydroxyquinoline) platinum as doped material

InactiveCN102856510AShort decay lifeHigh external quantum efficiency of the deviceSolid-state devicesSemiconductor/solid-state device manufacturingPhenanthroline8-Hydroxyquinoline
The invention discloses an OLED (Organic Light Emitting Diode) device prepared by taking di(8-hydroxyquinoline)platinum as a doped material, taking indium tin oxide (ITO) as transparent conductive film glass (an anode), taking N,N'-di(1-naphthyl)-N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine (NPB) as a hole transport material, taking 4,4'-di(9-carbazole)biphenyl (CPB) doped with di(8-hydroxyquinoline)platinum (Ptq2) as a main raw material, taking 2,9-dimethyl-4,7-biphenyl-1,10-phenanthroline (BCP) as a hole blocking material, taking 8-hydroxyquinoline (Alq3) as an electron transport material and taking aluminum / lithium fluoride as a cathode. According to the OLED device prepared by doping Ptq2 which serves as a phosphor material in the main raw material, the maximum electroluminescence wavelength is within a near-infrared area (700-850nm), and the OLED device has excellent electrical conductivity and stability.
Owner:无锡信怡微电子有限公司

Compound containing 1, 3-diketone ligand, application of compound and organic electroluminescent device

The invention relates to the field of organic electroluminescent devices, and discloses a compound containing a 1, 3-diketone ligand, application of the compound and an organic electroluminescent device. The compound has a structure as shown in Ir (LA) (LB) 2, LA has a structure as shown in a formula (IA), and LB is a structure as shown in a formula (IB), a structure as shown in LB310, a structure as shown in LB311, a structure as shown in LB312, a structure as shown in LB313 or a structure as shown in LB314. The compound containing the 1, 3-diketone ligand provided by the invention has the advantages of small synthesis difficulty and easy purification, has excellent luminescence performance when being used as an organic electrophosphorescent material, can prolong the service life of a device, can increase the solubility of the phosphorescent material, and can reduce the probability of triplet state-triplet state quenching.
Owner:BEIJING GREEN GUARDEE TECH

Blue light organic electroluminescent material, and preparation method and application thereof

The invention belongs to the field of photoelectric materials, and specifically relates to a blue light organic electroluminescent material. A structural formula (P) is shown in the description. In the formula, R represents alkoxy of C1-C20. The blue light organic electroluminescent material has a relatively high LUMO energy level and relatively low HOMO energy level, and is beneficial to blue shift of luminescent wavelengths of the material. The blue light organic electroluminescent material also has relatively high phosphorescence quantum efficiency, relatively good solubility and processability. The invention also provides a preparation method of the blue light organic electroluminescent material, and an application of the blue light organic electroluminescent material in an organic electroluminescent device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2
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