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51results about How to "Delayed fluorescence" patented technology
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Light-emitting element, light-emitting device, display device, electronic device, and lighting device
ActiveUS20130306945A1Improve emission efficiencyReduce power consumptionSolid-state devicesSemiconductor/solid-state device manufacturingFluorescenceDisplay device
An object is to provide a light-emitting element which includes an exciplex being used as an energy donor capable of efficiently transferring energy to a substance exhibiting thermally activated delayed fluorescence. The exciplex comprises two kinds of substances and its singlet and triplet excited states are close to each other. Thus, by making light emission of the exciplex overlap with an absorption band on the longest wavelength side which corresponds to absorption by the substance exhibiting thermally activated delayed fluorescence, i.e., an energy acceptor, in a singlet excited state, it becomes possible to achieve efficient energy transfer from a singlet excited state of the exciplex to a singlet excited state of the substance exhibiting thermally activated delayed fluorescence, and it also becomes possible to achieve efficient energy transfer from a triplet excited state of the exciplex to a triplet excited state of the substance exhibiting thermally activated delayed fluorescence.
Owner:SEMICON ENERGY LAB CO LTD
Boron-containing organic light emission diode device and preparation method thereof
ActiveCN107507921AReduced singlet-triplet energy level differenceDelayed fluorescenceSolid-state devicesSemiconductor/solid-state device manufacturingElectron injectionTriplet state
Owner:JIANGSU SUNERA TECH CO LTD
Materials, method, and apparatus for detecting neutrons and ionizing radiation
InactiveUS20120241630A1Improve solubilityImprove radiation resistanceMeasurement with scintillation detectorsMaterial analysis by optical meansCalorescenceDiffusion
Embodiments of the invention provide a scintillator material, a scintillator system, and / or a method of detecting incident radiation using a scintillator material, or scintillator system, comprising a polymer material that comprises chromophores. Additional embodiments provide a scintillator material, scintillator system, and / or a method of detecting incident radiation using a scintillator material, or scintillator system, comprising a polymer material having one, two, three, or more, organic dyes dissolved therein wherein the polymer material having the one, two, three, or more dyes dissolved therein comprises chromophores. At least one of the dyes, termed the base dye, has a concentration in the range 0.5 to 3.5 mol / L. In a specific embodiment, the base dye has a concentration in the range 1.0 to 3.0 mol / L. This base dye concentration is high enough to achieve a substantial triplet-triplet state annihilation rate despite the negligible diffusion of the dye in the rigid polymer matrix.
Owner:NANOPTICS
Electroluminescence device based on boron-containing organic compound
ActiveCN110492006AImprove efficiencyExtend your lifeSolid-state devicesSemiconductor/solid-state device manufacturingOrganic light emitting deviceCharge carrier
The present invention relates to an electroluminescence device based on a boron-containing organic compound, wherein a main body material comprises a first organic compound and a second organic compound, the difference between a singlet state energy level and a triplet state energy level of the first organic compound is not greater than 0.2 eV, the singlet energy level of the second organic compound is greater than the singlet energy level of the first organic compound by more than 0.1 eV, and the triplet energy level of the second organic compound is greater than the triplet energy level of the first organic compound by more than 0.1 eV; the first organic compound and the second organic compound have the different carrier transport characteristics, wherein an object material is the boron-containing organic compound, the singlet energy level of the object material is lower than that of the first organic compound, and the triplet energy level of the object material is lower than that ofthe first organic compound. An organic light-emitting device prepared by the method has the characteristics of high efficiency and long service life.
Owner:JIANGSU SUNERA TECH CO LTD
Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device
ActiveUS20160126463A1Improve emission efficiencyImprove conversion efficiencyOrganic chemistrySolid-state devicesDisplay deviceEmission efficiency
Provided is a light-emitting element with high emission efficiency including a fluorescent material as a light-emitting substance. In a light-emitting element including a pair of electrodes and an EL layer between the pair of electrodes, a delayed fluorescence component due to triplet-triplet annihilation accounts for 20% or more of light emitted from the EL layer, and the light has at least one emission spectrum peak in the blue wavelength range. The EL layer includes an organic compound in which an energy difference between the lowest singlet excited energy level and the lowest triplet excited energy level is 0.5 eV or more. The EL layer includes a benzo[a]anthracene compound.
![Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device](https://images-eureka.patsnap.com/patent_img/92d21263-8c84-40ad-8565-dbd39a6fd1e3/US20160126463A1-20160505-D00000.PNG "Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device")
![Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device](https://images-eureka.patsnap.com/patent_img/92d21263-8c84-40ad-8565-dbd39a6fd1e3/US20160126463A1-20160505-D00001.PNG "Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device")
![Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device](https://images-eureka.patsnap.com/patent_img/92d21263-8c84-40ad-8565-dbd39a6fd1e3/US20160126463A1-20160505-D00002.PNG "Benzo[a] Anthracene Compound, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device")
Owner:SEMICON ENERGY LAB CO LTD
Organic light-emitting device taking exciplex as main body material
ActiveCN110492005AImprove stabilityReduce concentrationSolid-state devicesSemiconductor/solid-state device manufacturingSimple Organic CompoundsLight excitation
The invention relates to an organic light-emitting device taking an exciplex as a main body material, in particular to an organic light-emitting device containing the main body material and a fluorescent material, wherein the main body material comprises a first organic compound and a second organic compound, a mixture or an interface formed by the first organic compound and the second organic compound generates the exciplex under the condition of optical excitation or electric field excitation, and the emission spectrum of the formed exciplex and the absorption spectrum of the fluorescent doped material are effectively overlapped to form the effective energy transfer; the first organic compound and the second organic compound have the different carrier transport characteristics, wherein the fluorescent material is an organic compound containing the boron atoms. The organic light-emitting device prepared by the method has the characteristics of high efficiency and long service life.
Owner:JIANGSU SUNERA TECH CO LTD
Electroluminescent device based on exciplex system and matched with boron-containing organic compound
ActiveCN110492009AImprove stabilityReduce concentrationSolid-state devicesSemiconductor/solid-state device manufacturingSimple Organic CompoundsOrganic light emitting device
The invention relates to an electroluminescent device based on an exciplex system and matched with a boron-containing organic compound, wherein a subject material contains a first organic compound anda second organic compound, the difference between the HOMO energy level of the first organic compound and the HOMO energy level of the second organic compound is 0.2 eV or more, and the difference between between the LUMO energy level of the first organic compound and the LUMO energy level of the second organic compound is 0.2 eV or more. A mixture or an interface formed by the first organic compound and the second organic compound generates an exciplex under the excitation of the light or an electric field, the singlet energy level of the exciplex is higher than that of an object material, and the triplet energy level of the exciplex is higher than that of the object material. The first organic compound and the second organic compound have different carrier transport characteristics, andthe object material is the boron-containing organic compound. An organic light-emitting device prepared by the method has the characteristics of high efficiency and long service life.
Owner:JIANGSU SUNERA TECH CO LTD
Ortho-substituted thermally activated delayed fluorescence material and organic light-emitting device comprising same
PendingUS20180123049A1Delay fluorescenceReduce energy differenceGroup 4/14 element organic compoundsGroup 5/15 element organic compoundsFluorescenceBenzene
A thermally activated delayed fluorescent (TADF) material is provided. The TADF material has a form in which an electron donating group and an electron withdrawing group are connected to benzene and the electron withdrawing group is position in an ortho position to the electron donating group.
Owner:SAMSUNG DISPLAY CO LTD
Light-emitting element, light-emitting device, display device, electronic device, and lighting device
ActiveUS8994013B2Avoid concentrationAvoid positioningSolid-state devicesSemiconductor/solid-state device manufacturingFluorescenceDisplay device
An object is to provide a light-emitting element which includes an exciplex being used as an energy donor capable of efficiently transferring energy to a substance exhibiting thermally activated delayed fluorescence. The exciplex comprises two kinds of substances and its singlet and triplet excited states are close to each other. Thus, by making light emission of the exciplex overlap with an absorption band on the longest wavelength side which corresponds to absorption by the substance exhibiting thermally activated delayed fluorescence, i.e., an energy acceptor, in a singlet excited state, it becomes possible to achieve efficient energy transfer from a singlet excited state of the exciplex to a singlet excited state of the substance exhibiting thermally activated delayed fluorescence, and it also becomes possible to achieve efficient energy transfer from a triplet excited state of the exciplex to a triplet excited state of the substance exhibiting thermally activated delayed fluorescence.
Owner:SEMICON ENERGY LAB CO LTD
Method and system for detecting fluorescence from microarray disk
InactiveUS20070026532A1Improve signal-to-noise ratioDelayed fluorescenceBioreactor/fermenter combinationsBiological substance pretreatmentsFluorescent materialsPhysics
In a fluorescence detection method: each of one or more biological specimens is irradiated with excitation light while a substrate disk is rotated, where the one or more biological specimens are labeled with a fluorescent material and fixed on the substrate disk. Fluorescence which is emitted from each of the one or more biological specimens is detected when a predetermined time elapses since the biological specimen is irradiated with the excitation light.
Owner:FUJIFILM HLDG CORP +1
Organic light-emitting diode materials
InactiveUS20180212158A1High excitation statePromote degradationOrganic chemistrySolid-state devicesAcceptorMoiety
Described herin are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moeity D, each moiety D is covalently attached to either the moeity B or the moeity A, and each B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D and B are defined herein.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE
Lighting design of high quality biomedical devices
ActiveUS20100187440A1Increase rangeImprove reliabilityPhotometryLight guides with fluorescent dopantsEngineeringBiomedical equipment
The invention relates to a plurality of light sources to power a variety of applications including microarray readers, microplate scanners, microfluidic analyzers, sensors, sequencers, Q-PCR and a host of other bioanalytical tools that drive today's commercial, academic and clinical biotech labs.
Owner:LUMENCOR
Miazines deviate and application thereof
ActiveCN108285452ADelayed fluorescenceOrganic chemistrySolid-state devicesOrganic electroluminescenceOrganic chemistry
The invention discloses a miazines derivate and application thereof. The miazines derivate is provided with the structure shown as the formula (I), wherein R1, R2 and R3 are any one of alkyl groups with 1-60 carbon atoms, substituted and unsubstituted aromatic heterocyclic group, and substituted and unsubstituted aromatic ring groups. According to the miazines derivate, the key chemical structureand the like are improved, and the miazines derivate is used as an electroluminescence layer material to be used in an organic electroluminescence device. Compared with the prior art, the miazines derivate is capable of effectively solving the problems of low stability of a blue material in the organic electroluminescence device and low efficiency. The formula sees the description.
Owner:HUAZHONG UNIV OF SCI & TECH
Thermal active delay fluorescent material and light-emitting device made with same
InactiveCN108707103AStrong electron supply abilityStrong pull electron capabilityOrganic chemistrySolid-state devicesOrganic light emitting deviceTriplet state
The invention relates to a thermal active delay fluorescent material and a light-emitting device made with the same. The thermal active delay fluorescent material has molecular structure shown as formula (I) that is shown in the description, has very small triplet state-singlet state level differences, suitable molecular level, and good film stability, can provide thermal active delay fluorescenceand act as a light-emitting layer of an organic light-emitting device for the field of organic light emission.
Owner:VALIANT CO LTD
Thermally-activated delayed fluorescence materials and application thereof
InactiveCN108048076AHigh film stabilityAppropriate molecular massOrganic chemistrySolid-state devicesTriboluminescenceOrganic electroluminescence
The invention relates to thermally-activated delayed fluorescence materials and application thereof. The materials have a molecular structure as shown in a formula (I). The thermally-activated delayedfluorescence materials have very small triplet-singlet energy level difference, proper molecular energy levels and good film stability, can realize thermally-activated delayed fluorescence radiationand are applicable as light-emitting layers of organic electroluminescent devices to the field of organic electroluminescence.
Owner:VALIANT CO LTD
Compound having diazatriphenylene ring structure, and organic electroluminescent device
ActiveUS20160064676A1Stable thin-film stateImprove efficiencyGroup 4/14 element organic compoundsSolid-state devicesPhotoluminescenceFluorescence
A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of a general formula (1) having a diazatriphenylene ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.
Owner:KYULUX INC
Polycyclic aromatic amino compound
ActiveUS20200020859A1Excellent organic EL elementHigh energySolid-state devicesSemiconductor/solid-state device manufacturingOrganic electroluminescenceOrganic chemistry
By providing a novel polycyclic aromatic amino compound having an amino substituent and having a plurality of aromatic rings linked via a boron atom, an oxygen atom, or the like, for example, as in the following formula, a selection range of a material for an organic EL element is widened. In addition, by using the novel polycyclic aromatic amino compound as a material for an organic electroluminescent element, an excellent organic EL element is provided
Owner:SK MATERIALS JNC CO LTD +1
Thermal activation delaying fluorescent material and application thereof
InactiveCN108383847AOptimize spaceImprove stabilityOrganic chemistrySolid-state devicesOrganic electroluminescenceBiological activation
The invention discloses a thermal activation delaying fluorescent material and application thereof. The thermal activation delaying fluorescent material comprises two anthrone structure units and a low molecular weight organic electroluminescent material with two spiro-carbon centers; the material has a D-A type molecular structure and very small deltaEst; thermal activation delaying fluorescenceradiation can be realized; the material can be used as a luminescent layer of a low molecular weight organic electroluminescent device and is applied to the field of organic electroluminescence.
Owner:VALIANT CO LTD
Thermally activated delayed fluorescent materials and application thereof
InactiveCN108383854AIncrease steric hindranceHigh film stabilityOrganic chemistrySolid-state devicesTriboluminescenceTriplet state
The invention relates to thermally activated delayed fluorescent materials and an application thereof. A molecular structure of the materials provided by the invention has a very small triplet state-singlet state energy level difference, a suitable molecular energy level and good film stability; and thermal activation delay fluorescent luminescence can be realized, and the materials are used as aluminescent layer of an organic electroluminescent device to be used in the field of organic electroluminescence.
Owner:VALIANT CO LTD
Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device
ActiveUS10236448B2Improve emission efficiencyImprove conversion efficiencyOrganic chemistrySolid-state devicesDisplay deviceEmission efficiency
Provided is a light-emitting element with high emission efficiency including a fluorescent material as a light-emitting substance. In a light-emitting element including a pair of electrodes and an EL layer between the pair of electrodes, a delayed fluorescence component due to triplet-triplet annihilation accounts for 20% or more of light emitted from the EL layer, and the light has at least one emission spectrum peak in the blue wavelength range. The EL layer includes an organic compound in which an energy difference between the lowest singlet excited energy level and the lowest triplet excited energy level is 0.5 eV or more. The EL layer includes a benzo[a]anthracene compound.
![Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device](https://images-eureka.patsnap.com/patent_img/bc02e739-7c5b-4d86-bb5d-3dd3328f6635/US10236448-D00001.png "Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device")
![Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device](https://images-eureka.patsnap.com/patent_img/bc02e739-7c5b-4d86-bb5d-3dd3328f6635/US10236448-D00002.png "Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device")
![Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device](https://images-eureka.patsnap.com/patent_img/bc02e739-7c5b-4d86-bb5d-3dd3328f6635/US10236448-D00003.png "Benzo[a] anthracene compound, light-emitting element, display device, electronic device, and lighting device")
Owner:SEMICON ENERGY LAB CO LTD
Method and system for detecting fluorescence from microarray disk
InactiveUS7794661B2Improve signal-to-noise ratioDelayed fluorescenceBioreactor/fermenter combinationsBiological substance pretreatmentsFluorescent materialsPhysics
In a fluorescence detection method: each of one or more biological specimens is irradiated with excitation light while a substrate disk is rotated, where the one or more biological specimens are labeled with a fluorescent material and fixed on the substrate disk. Fluorescence which is emitted from each of the one or more biological specimens is detected when a predetermined time elapses since the biological specimen is irradiated with the excitation light.
Owner:FUJIFILM HLDG CORP +1
Thermally activated delayed fluorescent material and application thereof
InactiveCN108191867AIncrease steric hindranceHigh film stabilityOrganic chemistrySolid-state devicesHydrogen atomBiological activation
The invention discloses a thermally activated delayed fluorescent material and an application thereof, and belongs to the technical field of organic photoelectric materials. The thermally activated delayed fluorescent material has a structure shown in a formula I in the description, wherein R1, R2, R3, R4 and R5 independently represent one of a hydrogen atom, methyl and a cyano group, and at leastone of the R1, the R2, the R3, the R4 and the R5 represents the cyano group. The invention also discloses the application of the above thermally activated delayed fluorescent material. The material provided by the invention has a D-A type molecular structure and a very small deltaEst, can realize thermal activation delay fluorescence luminescence, and can be used as a luminescent layer of a smallmolecule organic electroluminescent device to be applied in the field of organic electroluminescence.
Owner:VALIANT CO LTD
Organic light-emitting device
ActiveUS20160087218A1Improve efficiencyImproved roll-off characteristicSolid-state devicesSemiconductor/solid-state device manufacturingDopantOrganic light emitting device
An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including a dopant, a first host, and a second host. The dopant is a delayed fluorescence emitting material, and a triplet energy of the first host, EH1(T1) and a triplet energy of the second host, EH2(T1) are each equal to or greater than a triplet energy of the dopant, ED(T1). The triplet energy of the first host, EH1(T1) is in a range of about 2.6 eV to about 3.1 eV.
Owner:SAMSUNG DISPLAY CO LTD
Material for organic electroluminescent device, light-emitting material, and organic electroluminescent device
ActiveUS20180108857A1Improve heat resistanceImprove efficiencyOrganic chemistrySolid-state devicesDopantPhotoluminescence
To provide a light-emitting material of a light emitting layer, particularly a dopant material or a host material of a light emitting layer emitting delayed fluorescence, or a material suitable for a hole blocking layer, as a material for an organic electroluminescent device having a high efficiency, and also to provide an organic photoluminescent device or an organic electroluminescent device having a high efficiency and a high luminance, particularly an organic EL device suppressed in the roll-off phenomenon, by using the material. A material for an organic electroluminescent device, containing a benzonitrile derivative of the following general formula (1), and an organic electroluminescent device containing a pair of electrodes and one layer or plural layers including at least a light emitting layer intervening between the electrodes, the organic electroluminescent device using the material.
Owner:KYULUX INC +2
Organic light-emitting device emitting delayed fluorescence
ActiveUS9431615B2Improve efficiencyImproved roll-off characteristicSolid-state devicesSemiconductor/solid-state device manufacturingDopantOrganic light emitting device
An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including a dopant, a first host, and a second host. The dopant is a delayed fluorescence emitting material, and a triplet energy of the first host, EH1(T1) and a triplet energy of the second host, EH2(T1) are each equal to or greater than a triplet energy of the dopant, ED(T1). The triplet energy of the first host, EH1(T1) is in a range of about 2.6 eV to about 3.1 eV.
Owner:SAMSUNG DISPLAY CO LTD
Materials, method, and apparatus for detecting neutrons and ionizing radiation
InactiveUS8993968B2Significant rateConstant controlMeasurement with scintillation detectorsMaterial analysis by optical meansCalorescenceDiffusion
Owner:NANOPTICS
Organic light-emitting element, and light-emitting material and fluorescent body used in same
ActiveUS20190348617A1High quantum yieldImprove stabilityOrganic chemistrySolid-state devicesOrganic light emitting deviceFluorescence
Disclosed is an organic light-emitting device using a compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer. The compound includes, for example, a compound represented by the general formula. X1 to X3 each represent O or S; R1 to R6 each represent nH or a substituent; n, n1 to n3 each represent an integer of 1 to 3.
Owner:KYUSHU UNIV +1
Compound having diazatriphenylene ring structure, and organic electroluminescent device
ActiveUS10032995B2Stable thin-film stateImprove efficiencySilicon organic compoundsGroup 5/15 element organic compoundsFluorescencePhotoluminescence
Owner:KYULUX INC
Thermal activation delayed fluorescent material and application thereof
InactiveCN108503630ADelayed fluorescenceIncrease steric hindranceOrganic chemistrySolid-state devicesTriboluminescenceOrganic electroluminescence
The invention relates to a thermal activation delayed fluorescent material and application thereof. The thermal activation delayed fluorescent material is of a molecular structure shown in a formula (I), and the molecular structure has very small triple-single energy level difference, proper molecular energy level and good thin film stability; the thermal activation delayed fluorescence radiationcan be realized, and the thermal activation delayed fluorescent material can be used as a light emitting layer of an organic electroluminescence device to be applied into the field of organic electroluminescence. (The formula (I) is shown in the attached figure).
Owner:VALIANT CO LTD
A thermally activated delayed fluorescent material and its application
ActiveCN108048077BAppropriate molecular massImprove thermal stabilityOrganic semiconductor materialsOrganic chemistryTriboluminescenceOrganic light emitting device
Owner:VALIANT CO LTD
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