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37results about How to "Reduce annihilation" patented technology
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Condensed-ring compound and preparation method and application thereof
InactiveCN110698387AReduced bandgap widthPrevent backflowGroup 5/15 element organic compoundsSolid-state devicesOrganic electroluminescenceMaterials science
The invention discloses a condensed-ring compound and a preparation method and an application thereof. The condensed-ring compound has a structure represented by formula (I) or formula (II). The HOMOand LUMO energy levels of the fused-ring compound are completely separated, so that the energy gap width of the material is reduced, the three-wire energy level is improved, and the energy backflow from the object material to the main material is avoided to reduce the luminous efficiency; HOMO and LUMO energy levels are matched with adjacent materials, and the driving voltage is small. The devicehas large molecular structure size and good intramolecular conjugation, so it has good thermal stability, can avoid thermal decomposition of materials during film formation or use, avoids loss of material layer function, and improves luminous efficiency and luminous performance of the device. The invention also provides a preparation method of the fused-ring compound and its application as an organic electroluminescent material.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Decoration space peculiar smell purifying method and device
PendingCN107029527APurify thoroughlyReduce ozone concentrationGas treatmentDispersed particle separationPhotocatalytic reactionDecomposition
The invention discloses a decoration space peculiar smell purifying method and device and belongs to the technical field of air purification. The decoration space peculiar smell purifying method comprises the purifying process that peculiar smell in a decoration space enters a low-temperature plasma reactor to be treated and then enters a catalytic reactor, ultraviolet rays and a by-product ozone produced by the plasma reactor can strengthen the photocatalytic pollutant and intermediate product degradation process, residual ozone and nitric oxide and other by-products are removed through an efficient ozone decomposition catalyst, and meanwhile the peculiar smell in the decoration space is after-purified through an activated carbon layer and then is discharged into a room together with negative ions. The peculiar smell in a newly decorated room can be effectively treated, the ultraviolet rays and ozone produced by a low-temperature plasma can be also fully utilized to strengthen the photocatalytic pollutant and intermediate product degradation, the two processes complement each other's advantages, the energy utilization rate can be improved, and meanwhile the negative ions are released to actively purify an indoor air environment.
Owner:ACAD OF ENVIRONMENTAL PLANNING & DESIGN GRP CO LTD NANJING UNIV
Green light organic electroluminescence device
ActiveCN108011040AImprove efficiencyReduce roll-offSolid-state devicesSemiconductor/solid-state device manufacturingOrganic electroluminescenceVoltage
The invention discloses a green light organic electroluminescence device. The device includes a substrate, and a first electrode layer, a light emitting layer and a second electrode layer formed on the substrate in sequence. The light emitting layer includes body material and a green phosphorescence dye. The body material is thermal activation delayed fluorescence material (TADF) doped or not doped with cavity-type transmission material and the cavity-type transmission material. The mass ratio between the thermal activation delayed fluorescence material and the cavity-type transmission material is (0.1-100%):(99.9%-0%). The doping proportion of the green phosphorescence dye in the green phosphorescence dye is 0.5-10 wt%. According to the invention, Forster energy transfer is adopted for reducing TTA (Triplet State-Triplet State Annihilation), improving exciton utilization rate and further improving device efficiency and service life. The Delta E<ST> of the device provided by the invention is low (<0.3eV). The electron accepter stability is good and the torsion angle between accepters and donors is smaller and the radiative transmission rate is high. The single state S1 of the thermal activation delayed fluorescence material is lower than the single state S1 of a common subject and device drive voltage can be reduced effectively.
Owner:KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
Organic electroluminescent device and preparation method of organic electroluminescent device
ActiveCN102683608AImprove luminous efficiencyImprove luminous brightnessSolid-state devicesSemiconductor/solid-state device manufacturingOrganic electroluminescenceCathode ray
The invention discloses an organic electroluminescent device which comprises a transparent substrate layer, an anode layer, an organic electroluminescent structure and a cathode layer sequentially superposed. The transparent substrate layer is provided with a first surface and a second surface which are opposite to each other. The first surface is provided with convex lens-type convex parts arranged in array, and the second surface and the anode layer are superposed. The organic electroluminescent structure comprises an exciton balance layer and at least a luminescent layer superposed with the exciton balance layer. The organic electroluminescent device is high in luminescent efficiency and brightness and stable in luminescent efficiency and chromaticity coordinates. The preparation method of the organic electroluminescent device is simple in process, improves the production efficiency, reduces the production cost and is appropriate for industrialized production.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1
Metal complex and OLED (Organic Light Emitting Device) thereof
InactiveCN108530490AHigh thermal and chemical stabilityIncreased conjugated systemIndium organic compoundsSolid-state devicesChemistryIridium
The invention discloses a metal complex and an OLED (Organic Light Emitting Device) thereof, and relates to the technical field of organic photoelectric materials. The metal complex has a structure asshown in a formula (I), wherein an electron-rich dinitrogen coordination structure in the structure of the metal complex is beneficial for stabilizing central trivalent metal cations, and meanwhile,electron cloud distribution on metal iridium can also be affected, so that great influence to the photoelectric properties of a whole complex molecule can be generated; a quaternary ring formed by a ligand of the dinitrogen coordination structure and metal has stronger rigidity and is beneficial for reducing unnecessary vibration energy loss and realizing high-efficiency luminescence property. Byregulating substituent groups, the metal complex has better thermal stability and chemical property; by preparing the metal complex into a device and particularly using the metal complex as a doping material, the device has the advantages of low driving voltage and high luminous efficiency and is superior to a commonly used OLED.
Owner:CHANGCHUN HYPERIONS TECH CO LTD
Iridium complex and organic light emitting device thereof
InactiveCN108822154AImprove rigidityGood chemical stabilityIndium organic compoundsSolid-state devicesIridiumOrganic light emitting device
The invention discloses an iridium complex and an organic light emitting device thereof and relates to the technical field of organic photoelectric materials. The iridium complex is of a structure asshown in the formula (I). Due to an electron-rich double-nitrogen coordination structure in the iridium complex structure, trivalent metal cation in the center can be beneficially stabilized, and meanwhile, electron cloud distribution on the metal iridium can be affected, so that photoelectric properties of whole complex molecules can be greatly influenced; and in addition, a four-membered ring formed by ligand of the double-nitrogen coordination structure and the metal has rigidity, unexpected vibration energy loss can be favorably reduced, and high-efficiency light emission properties can beachieved. By adjusting substitution groups, the complex is good in thermal stability and chemical property. The iridium metal organic complex can be prepared into a device and can be particularly used as a doping material, and the device has the advantages of being low in driving voltage and high in light emission efficiency and is prior to conventional common OLEDs (Organic Light Emitting Devices).
Owner:CHANGCHUN HYPERIONS TECH CO LTD
Fused ring compound, preparation method and applications thereof
ActiveCN111039850AEffective combinationModerate transmission capacityGroup 5/15 element organic compoundsSolid-state devicesElectron holeElectron donor
The invention discloses a fused ring compound, a preparation method and applications thereof. The fused ring compound has a structure represented by a formula (I) or a formula (II). According to the invention, the main body part of the compound serves as a large electron donor center and is well paired with an electron withdrawing group, so that electrons and holes are transmitted in a balanced manner, and effective combination of the electrons and the holes is promoted; the transmission capability of carriers is moderate, so that disappearing caused by over-high carrier concentration is avoided; hOMO and LUMO energy levels are matched with adjacent materials, and the driving voltage is small, so that the service life is remarkably prolonged; and the fused ring compound has good thermal stability and an appropriate sublimation temperature, and can avoid the thermal decomposition of a material in a film forming or using process, avoid the function loss of a material layer, and improve the luminous efficiency and the luminous performance of a device. The invention further provides a preparation method of the fused ring compound, an organic electroluminescent device and applications of the organic electroluminescent device in a lighting device or a display device.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Organic compound and preparation method and application thereof
ActiveCN111072674AEasy injectionEasy transferOrganic chemistrySolid-state devicesHigh energyHeat stability
The invention provides an organic compound as well as a preparation method and application thereof. The organic compound has a structure as shown in a formula I, the organic compound has a relativelyhigh thermal decomposition temperature; the triplet state energy level is high; the energy level difference between HOMO and LUMO is relatively small; HOMO and LUMO energy levels of the compound withthe specific structure are matched with a hole transport layer and an electron transport layer; meanwhile, due to the specific three-dimensional configuration, material molecules cannot be stacked; annihilation caused by existence of high-energy excitons is reduced, the energy transfer efficiency is improved, the luminous efficiency is improved, the driving voltage is reduced, the light-emitting stability is relatively high, the color cast is effectively reduced, the thermal decomposition temperature is high, the thermal stability is relatively high, and the luminous efficiency and the luminous performance of the device are improved.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Hemispherical shell organic electroluminescence device with two luminescent layers and preparation method for device
ActiveCN102931357AReduce the starting voltageWidening the Collision Composite AreaSolid-state devicesSemiconductor/solid-state device manufacturingMixed materialsHole transport layer
The invention belongs to the field of photoelectric devices, and discloses a hemispherical shell organic electroluminescence device with two luminescent layers and a preparation method for the device. The hemispherical shell organic electroluminescence device with the two luminescent layers comprises a hemispherical shell base, wherein an anode layer, a p-type doped hole transport layer, an electron blocking layer, a blue luminescent layer, a green luminescent layer, a hole blocking layer, an n-type doped electron transport layer and a cathode layer are stacked on the internal surface of the hemispherical shell base in sequence. The hemispherical shell organic electroluminescence device is provided with the two luminescent layers with a subject and object doped structure, and a subject material is a bipolar subject material or a mixed material of hole transport and electron transport subject materials, so that the impact recombination zone of excitons can be expanded, triplet-triplet annihilation is avoided, and the starting voltage of the organic electroluminescence device is reduced.
Dibenzo-heterocyclic compound and preparation method and applications thereof
InactiveCN109651423ALower LUMO levelImprove hole transport abilitySilicon organic compoundsSolid-state devicesElectron injectionHigh energy
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD +1
Blue-light TADF (thermally activated delayed fluorescence) aromatic material containing carbazole dendrites, method for preparing warm white device from blue-light TADF aromatic material and application of blue-light TADF aromatic material
ActiveCN107236003AProper Electron Withdrawing CapabilityImprove rigidityGroup 5/15 element organic compoundsSolid-state devicesCarbazoleNitrogenous heterocyclic compound
The invention relates to a blue-light TADF (thermally activated delayed fluorescence) aromatic material containing carbazole dendrites, a method for preparing a warm white device from the blue-light TADF aromatic material and an application of the blue-light TADF aromatic material, relates to a TADF material, a preparation method and an application, and aims to solve the problems that the conventional TADF blue-light guest material is poor in unicity, low in blue light color purity and low in efficiency. The structural formula of the blue-light TADF aromatic material containing the carbazole dendrites is shown in the description. The blue-light TADF aromatic material containing the carbazole dendrites is prepared from nitrogen-containing heterocyclic compound dendrites as well as dibromo difluorobenzene. The blue-light TADF aromatic material containing the carbazole dendrites is applied to a TADF electroluminescent device as a host luminescent material or a guest luminescent material and is applied to a phosphorescent device or the warm white device as the host luminescent material. The blue-light TADF aromatic material containing the carbazole dendrites and the method for preparing the device can be obtained.
Owner:HEILONGJIANG UNIV
Condensed-ring aryl compound, organic electronic device, and application thereof
InactiveCN110872298AEasy injectionPrevent crystallizationOrganic chemistrySolid-state devicesArylDouble bond
The invention relates to a condensed-ring aryl compound, an organic electronic device, and an application thereof, wherein the condensed-ring aryl compound has the structure as the formula (I), wherein n is an integer of 0 to 5, X1, X2, Y1, Y2 are independently selected from a combination of a connecting bond, N and CR5, any one of the groups of R1 to R5 is independently connected to a ring A anda ring B via a single bond or a double bond, and / or, any adjacent two among the R1 to R5 form a ring C, being an electron-withdrawing ring, and the R1 to R5 are electron-withdrawing groups. The structure is a non-planar structure, so that annihilation due to high-energy exciton is reduced, and the positive electrode is promoted to inject a cavity into a cavity transport layer, and stack and crystallization of molecules in the cavity transport layer are avoided and service life of the device is prolonged. The main nuclear has a rigid structure, so that the stability of the device is enhanced. The substituent groups are electron-withdrawing groups, so that the compound has LUMO energy level of -4.6 to -6.0 eV. The compound can serve as a P-doping material.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Organic compound, preparation method and application thereof
ActiveCN110903280AEasy injectionEasy transferOrganic chemistrySolid-state devicesHigh energyOrganic compound
The invention provides an organic compound, a preparation method and application thereof. The organic compound has a structure shown as formula I in the specification, the organic compound has high thermal decomposition temperature, high triplet state energy level and small energy level difference between HOMO and LUMO, the HOMO and LUMO energy levels of a specific structure compound match a holetransport layer and an electron transport layer, at the same time, a specific three-dimensional configuration does not cause stacking of material molecules, reduces annihilation caused by the existence of high-energy excitons, improves the energy transfer efficiency, improves the luminous efficiency, and lowers the driving voltage, the organic compound has high luminous stability, effectively reduces color cast, has high thermal decomposition temperature and high thermal stability, and improves the luminous efficiency and luminous performance of devices.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Compound and preparation method and application thereof
InactiveCN110483533AEasy injectionEasy transferOrganic chemistrySolid-state devicesHigh energyHole transport layer
The invention relates to a compound and a preparation method and application thereof. The compound has any one of structures as shown in formulas (I) to (V), the HOMO energy level and LUMO energy level of the compound are respectively matched with a hole transport layer and an electron transport layer. Meanwhile, due to the specific three-dimensional configuration, molecular stacking of material molecules is avoided, annihilation caused by existence of high-energy excitons is reduced, the energy transfer efficiency is improved, the luminous efficiency is improved, the driving voltage is reduced, the glass-transition temperature of the compound is high, the film-forming property is good, and the device has high stability.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Organic electroluminescent device and display apparatus
PendingCN111883680AImprove performanceAchieve separationSolid-state devicesSemiconductor/solid-state device manufacturingDisplay deviceHost material
The embodiment of the invention provides an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode and a light-emitting layer arranged between the anode and the cathode, wherein the light-emitting layer comprises a first light-emitting layer body, a second light-emitting layer body and a middle light-emitting layer body arranged betweenthe first light-emitting layer body and the second light-emitting layer body. The first light-emitting layer or the second light-emitting layer comprises a guest material doped in a host material; thefirst light-emitting layer and the second light-emitting layer are used for forming an exciplex, and the exciplex and the guest material meet the conditions: S1(AEX)-S1(B) >=0.1 eV, and T1(AEX)-T1 (B)>=0.1 eV. According to the invention, the separation of a luminescence center and a recombination center is effectively realized, a non-radiation effect is reduced, a trap effect of a TADF material on charges is reduced, triplet exciton annihilation is reduced, efficiency roll-off is avoided, and device performance is improved.
Owner:BOE TECH GRP CO LTD
Phenanthroline-containing organic complex and organic light emitting device (OLED) thereof
InactiveCN108530488AEasy to prepareRaw materials are easy to getIndium organic compoundsSolid-state devicesIridiumOrganic light emitting device
The invention discloses a phenanthroline-containing organic complex and an organic light emitting device (OLED) thereof and relates to the technical field of organic photoelectric materials. An electron-rich diazo coordination structure in the complex structure is favorable for stabilizing the central trivalent metal cation and also influences the distribution of electron cloud on metal iridium, thereby generating great influence on photoelectric properties of whole complex molecules; and a four-membered ring composed of the ligand of the diazo coordination structure and metal has stronger rigidity, thereby being favorable for reducing unnecessary vibration energy loss and realizing efficient light emitting performance. By adjusting substituent groups, the complex has better thermal stability and chemical properties. The complex can be prepared into a device and especially can serve as a doping material, and the device shows the advantages of low driving voltage and high light emittingefficiency and is superior to an existing common OLED.
Owner:CHANGCHUN HYPERIONS TECH CO LTD
Organic small molecule electron transport material and preparation method and application thereof
ActiveCN107602553AReduce annihilationImprove stabilityOrganic chemistrySolid-state devicesElectron injectionBromine
The invention belongs to the technical field of electron transport materials and discloses an organic small molecule electron transport material and a preparation method and application thereof. The organic small molecule electron transport material has the structure shown in the formula I. The method comprises that (1) o-aminodiphenylamine and p-bromobenzoyl chloride as raw materials undergo a reaction to produce an open-loop intermediate product, (2) the open-loop intermediate product undergoes a ring-closure reaction to produce a ring-closed bromine-containing intermediate product, (3) in the catalytic system, the ring-closed bromine-containing intermediate product and bis(pinacolato)diboron undergo a reaction to produce a borate-containing product and (4) in the catalytic system, the borate-containing product and 3-bromo-1, 10-phenanthroline undergo a coupling reaction to produce the organic small molecule electron transport material. The organic small molecule electron transport material has good thermal stability and good electron injection performances, can improve the luminous efficiency and stability of the device and is prepared through a simple method.
Owner:SOUTH CHINA UNIV OF TECH
Compound and application thereof, and organic electroluminescent device containing compound
PendingCN112898325AStrong rigid structureRaise the LUMO orbital energy levelSilicon organic compoundsIsotope introduction to heterocyclic compoundsOrganic layerOrganic electroluminescence
The invention provides a compound and application thereof, and an organic electroluminescent device comprising the same, the compound has a structure of formula (I), and the compound is used as a material of a luminescent layer in the organic electroluminescent device; and the organic electroluminescent device comprises a first electrode, a second electrode and an organic layer between the first electrode and the second electrode, and the organic layer contains one or a combination of at least two of the compounds. According to the compound provided by the invention, the LUMO orbital energy level of the compound can be improved, direct injection of electrons is reduced, reverse intersystem crossing is facilitated, the luminous efficiency is improved, part or all hydrogen atoms in the compound are subjected to heavy hydrogenation, the molecular structure stability can be greatly improved, and the vibration coupling strength of molecules is reduced; therefore, the energy loss of molecular non-radiative transition is reduced, and the service life of the device is prolonged; and when the compound is applied to an organic electroluminescent device as a luminescent material, the efficiency roll-off of the device can be further reduced, and the service life of the device is prolonged.
Owner:BEIJING ETERNAL MATERIAL TECH
Tea processing equipment based on solar power generation and heating
InactiveCN108740084AMeet processing energy consumption needsAchieve self-sufficiencyLight-sensitive devicesPre-extraction tea treatmentEngineeringSlurry
The invention relates to tea processing equipment based on solar power generation and heating. The tea processing equipment comprises a tea processing chamber, wherein a roof of the tea processing chamber is composed of a plurality of sub-roofs connected transversely; the cross sections of the sub-roofs are in a scalene triangle shape; Solar photovoltaic panels are uniformly distributed on the south sides of the sub-roofs; the solar photovoltaic panels are based on dye sensitized solar batteries; the dye sensitized solar batteries comprise photo-anodes, counter electrodes, dye and electrolyte,wherein the photo-anodes comprise FTO substrates, light transmission layers are arranged on the surfaces of the FTO substrates, scattering layers are arranged on the surfaces of the light transmission layers, and the light transmission layers and the scattering layers are separately formed by screen printing light transmission layer slurry and scattering layer slurry; the light transmission layers comprise TiO2 hollow spheres, MnO2 nanoparticles, graphene and TiO2 nanoparticles; and the scattering layers comprise hollow Ni-TiO2 nano-sieves and TiO2 nanoparticles.
Owner:梧州井儿铺贸易有限公司
A kind of axene compound and its preparation method and application
ActiveCN110938085BImprove thermal stabilityGood film formingOrganic chemistrySolid-state devicesHole transport layerMaterials science
The present invention provides an axene compound, its preparation method and application, including the compound with the structure shown in formula I. The axene compound provided by the present invention has a non-planar structure (three-dimensional structure), and there is no stacking between molecules, which can reduce the annihilation generated by high-energy excitons, promote the anode to inject holes into the hole transport layer, avoid the generation of Joule heat, avoid The stacking and crystallization of the molecules in the hole transport layer can further improve the service life of the device; the axenene compound provided by the invention has good thermal stability and good film-forming property, which is also beneficial to improving the service life of the device.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
Condensed-ring aryl compound, organic electronic device, and application thereof
InactiveCN110872310AEasy injectionPrevent crystallizationOrganic chemistrySolid-state devicesCrystallographyAryl
The invention provides a condensed-ring aryl compound, an organic electronic device, and an application thereof. The compound has the structure represented as the formula (I) or (II), wherein X1, X2 and Y1 are independently selected from a combination of a connecting bond, N and CR6, the ring A and the ring B are in a conjugated structure, any one of the R1 to R4 and the R6 are independently connected to the ring A the ring B via a single bond or a double bond, and / or the any adjacent two among the R1 to R4 and the R6 form a ring C, being an electron-withdrawing ring, the R5 is selected from aconnection bond, R7-substituted or -non-substituted C6-C30 aryl groups, and R7-substituted or -non-substituted C2-C30 heteroaryl groups, and the R1 to R4, R6 and R7 are electron-withdrawing groups. The compound is free of intramolecular stacking and can prolong service life of the device, wherein the substituent groups are electron-withdrawing groups, and the compound has LUMO energy level of -4.6 to -6.0 eV. The compound can serve as a P-doping material.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
A kind of organic compound and its preparation method and application
ActiveCN110903280BEasy injectionEasy transferOrganic chemistrySolid-state devicesHigh energyHeat stability
The invention provides an organic compound and its preparation method and application. The organic compound has a structure shown in formula I. The organic compound has a high thermal decomposition temperature, a high triplet energy level, and a relatively small energy level difference between HOMO and LUMO. The HOMO and LUMO energy levels of small, specific-structured compounds match the hole-transport layer and the electron-transport layer. At the same time, the specific three-dimensional configuration prevents molecular stacking of material molecules, which reduces the annihilation due to the existence of high-energy excitons and improves Energy transfer efficiency, improve luminous efficiency, reduce driving voltage, have high luminous stability, effectively reduce color shift, and high thermal decomposition temperature, have high thermal stability, improve luminous efficiency and luminous performance of the device.
Owner:NINGBO LUMILAN NEW MATERIAL CO LTD
A green light organic electroluminescent device
ActiveCN108011040BExtend your lifeTake advantage ofSolid-state devicesSemiconductor/solid-state device manufacturingGreen-lightOrganic electroluminescence
Owner:KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
Blue-light thermally excited delayed fluorescent aromatic material containing carbazole dendrites and its preparation method and application of warm white light device
ActiveCN107236003BImprove rigidityAvoid annihilationGroup 5/15 element organic compoundsSolid-state devicesCarbazoleLuminescent material
A blue-light thermally excited delayed fluorescent aromatic material containing carbazole dendrites and a preparation method and application thereof for a warm white light device, which relate to a thermally excited delayed fluorescent material, a preparation method and an application. The purpose of the present invention is to solve the problems of poor uniformity of existing TADF blue light guest materials, low color purity and low efficiency of blue light. The structural formula of the thermally excited delayed fluorescent aromatic material containing carbazole dendrons is The blue-light heat-excited delayed fluorescent aromatic material containing carbazole branch is prepared from nitrogen-containing heterocyclic compound branch and dibromodifluorobenzene. The thermally excited delayed fluorescent aromatic material containing carbazole dendrites is used as a host luminescent material or a guest luminescent material in a thermally excited delayed fluorescent electroluminescence device, and as a host luminescent material in a phosphorescent device or a warm white light device. The invention can obtain the blue light thermal excitation delay fluorescent aromatic material containing carbazole dendrites and the preparation method of the devices thereof.
Owner:HEILONGJIANG UNIV
Double-emitting layer hemispherical shell-shaped organic electroluminescent device and its preparation method
ActiveCN102931357BReduce the starting voltageWidening the Collision Composite AreaSolid-state devicesSemiconductor/solid-state device manufacturingMixed materialsHole transport layer
The invention belongs to the field of photoelectric devices, and discloses a hemispherical shell organic electroluminescence device with two luminescent layers and a preparation method for the device. The hemispherical shell organic electroluminescence device with the two luminescent layers comprises a hemispherical shell base, wherein an anode layer, a p-type doped hole transport layer, an electron blocking layer, a blue luminescent layer, a green luminescent layer, a hole blocking layer, an n-type doped electron transport layer and a cathode layer are stacked on the internal surface of the hemispherical shell base in sequence. The hemispherical shell organic electroluminescence device is provided with the two luminescent layers with a subject and object doped structure, and a subject material is a bipolar subject material or a mixed material of hole transport and electron transport subject materials, so that the impact recombination zone of excitons can be expanded, triplet-triplet annihilation is avoided, and the starting voltage of the organic electroluminescence device is reduced.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1
Organic iridium-containing metal complex and organic light-emitting device thereof
InactiveCN108676035AImprove rigidityGood chemical stabilityIndium organic compoundsSolid-state devicesIridiumOrganic light emitting device
The invention discloses an organic iridium-containing metal complex and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. An electron-rich bis-nitrogen coordination structure in a complex structure is favorable for stabilizing a central trivalent iridium ion, a ligand of the bis-nitrogen coordination structure and a quaternary ring composed of metal have stronger rigidity, so that higher chemical stability and thermal stability are obtained, and the luminous efficiency of the complex is improved. The synthesis is simple and easy tooperate, and the organic iridium-containing metal complex can be applied to the organic light-emitting device as a light-emitting layer doped material, and can effectively solve problems of low luminous efficiency and high driving voltage in the organic light-emitting device. The iridium complex is prepared into a device, especially as a doped material, and the device exhibits the advantages of low driving voltage and high luminous efficiency, and is superior to existing OLED devices.
Owner:CHANGCHUN HYPERIONS TECH CO LTD
Substituted tricarbonyl chloride 2, 2', 4, 2'-terpyridyl rhenium (I) coordination compound, preparation method and functions thereof
InactiveCN102690292AImprove performanceSimple structureSolid-state devicesSemiconductor/solid-state device manufacturingCombinatorial chemistryChloride
The invention provides a substituted tricarbonyl 2, 2', 4, 2'- terpyridyl rhenium (I) coordination compound, a preparation method and functions thereof. The preparation method for the rhenium (I) coordination compound includes steps of preparing a ligand and preparing the coordination compound. The rhenium (I) coordination compound has the advantages that triplet state annihilation is reduced, charge carrier transmission performance is improved, and an organic light-emitting device made of the provided rhenium (I) coordination compound can be simplified in structure and improved in performance. The rhenium (I) coordination compound is simple in synthesizing, quite high in yield, easy to purify and stable in property in the air.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Substituted tricarbonyl chloride 2, 2', 4, 2'-terpyridyl rhenium (I) coordination compound, preparation method and application thereof
InactiveCN102690292BImprove performanceSimple structureSolid-state devicesSemiconductor/solid-state device manufacturingCombinatorial chemistryChloride
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Metal complex and organic electroluminescence device thereof
InactiveCN108892690AStructural rigidityReduced phosphorescence lifetimeIndium organic compoundsSolid-state devicesStructural formulaGlass transition
The invention discloses a metal complex and an organic electroluminescence device thereof, relating to the technical field of organic optoelectronic materials. A first ligand and an auxiliary ligand in a structural formula I (shown in the description) are capable of well stabilizing central metal atoms, and the first ligand and a second ligand respectively form a five-member ring configuration anda four-member ring configuration with the metal atoms, so that the metal complex has a relatively rigid structure, and the high-performance and high-efficiency phosphorescence emission is realized. By introducing a large-volume substituent group, the glass transition temperature and the thermal stability of the metal complex are respectively effectively increased and improved, and the film formation of a material is promoted. The organic electroluminescence device comprises a cathode, an anode and one or more organic matter layers, wherein at least one organic matter layer contains the metalcomplex. The organic electroluminescence device is relatively low in driving voltage, relatively high in luminous efficiency and luminance and has a relatively long service life.
Owner:CHANGCHUN HYPERIONS TECH CO LTD
Based on three-tier tio 2 Dye Cells with Composite Thin Films
ActiveCN108511197BImprove adsorption capacityReduce annihilationLight-sensitive devicesPhotovoltaic energy generationComposite filmOptoelectronics
The invention relates to a dye cell based on a three-layer TiO2 composite thin film, which comprises a photoanode, a counter electrode and an electrolyte, wherein the photoanode and the counter electrode are arranged oppositely, and the liquid electrolyte is sandwiched therebetween; the photoanode comprises an FTO conductive substrate; a TiO2 composite thin film is arranged on the surface of the FTO conductive substrate; the TiO2 composite thin film is arranged in a three-layer structure, and the photoanode FTO substrate is directed to the counter electrode direction; and the TiO2 composite thin film comprises a TiO2 underlayer composite thin film, a TiO2 interlayer composite thin film, and a TiO2 upper-layer composite thin film sequentially.
Owner:ANHUI ZHENGXIBIAOWANG NEW ENERGY CO LTD
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