65 results about "Deep blue" patented technology

The present invention relates to an organic electroluminescent device comprising an emitting layer B comprising two host materials, namely an n-type (electron transport) and a p-type (hole transport) host material, a thermally activated delayed fluorescence (TADF) material, and an emitter material exhibiting a narrow deep blue emission with a small full width at half maximum (FWHM) and an emission maximum of 440 nm to 475 nm. Furthermore, the present invention relates to a method for generating blue light using the organic electroluminescent device of the present invention.

1. The name of the product under this design: Cart (Deep Blue). 2. Purpose of this design product: used for storing or placing items. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. The name of the design product: cloth (deep blue dinosaur). 2. The use of the design product: clothing, clothing, bedding, curtains and other textiles. 3. The design points of the design product: in the pattern. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a flat product, omitting the left view, right view, top view, bottom view, rear view, and perspective view. 6. The design product is a four-sided continuous flat product with no limit.

The application belongs to the technical field of luminescent materials, and particularly relates to a binuclear platinum complex and application thereof. The binuclear platinum complex has the structure shown in formula (1), and when used in an OLED, especially in a blue light emitting region, the binuclear platinum complex exhibits enhanced phosphorescence quantum yield, good luminescence stability, high luminescence efficiency, and is suitable for use as an emitter material in OLED application. The metal platinum complex of the application can obtain an organic electroluminescent device with deep blue phosphorescence and improved luminescence efficiency, and the luminescent device has good thermal stability. The binuclear platinum complex has the advantages of narrow emission spectrum, high stability and high efficiency by adjusting the structure of the ligand around the metal center and the structure of the substituent on the ligand to control the photophysical properties, and has wide application prospects in many fields such as OLED display and lighting.

1. Name of the designed product: battery under shield (Changan deep blue S09). 2. Use of the designed product: protect the car battery. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

Disclosed is a heterocyclic compound containing boron and nitrogen. The compound adopts a novel heterocyclic structure containing boron and nitrogen, and can be used as a luminescent material, a host material, a charge blocking material, a charge transport material and the like in an electroluminescent device. The compound can provide a very narrow luminescent spectrum and realize high-saturation dark blue luminescence. An organic light emitting device and a compound formulation are also disclosed.

1. The name of the product under this design: Packaging bag (Cloud Deep Blue Laundry Detergent). 2. Purpose of this design product: used for packaging products. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. This design product is a flat product, and the left view, right view, top view and bottom view are omitted.

The invention provides a metal compound and application thereof. The metal compound has a structure as shown in a formula (I). When the metal compound is applied to an OLED (Organic Light Emitting Diode), especially in a blue light emission region, the metal compound shows enhanced phosphorescence quantum yield, is good in luminescence stability and high in luminescence efficiency, and is suitable for being used as an emitter material in OLED application, the metal complex can obtain an organic electroluminescent device with dark blue phosphorescence electroluminescence and improved luminescence efficiency, and the organic electroluminescent device is suitable for being used as an organic electroluminescent device. And the light-emitting device is good in thermal stability and has a wide application prospect in the fields of OLED display and illuminating lamps. # imgabs0 #

The invention provides a spiro-imidazole-like heat exciton luminescent material as well as a preparation method and application thereof. The structural formula of the heat exciton luminescent material is shown as a formula (1). According to the technical scheme, spiroimidazole is used as a receptor, and the molecular structure of a donor is changed to effectively construct an intramolecular hybridization localization state and a charge transfer state, so that a heat exciton channel is formed, and a novel dark blue light heat exciton material is obtained, which is different from currently reported thermal activity delayed fluorescence. The spiroimidazole-based heat exciton light-emitting material is used as a light-emitting layer to prepare a light-emitting device, and the performance is excellent, such as the color coordinate CIEult of the obtained tCz-SFI-based dark blue light device; 0.08, external quantum efficiency gt; and 10% of deep blue light devices.

The present application provides a polyboron-nitrogen derivative, a deep blue light-emitting device and a light-emitting apparatus, the polyboron-nitrogen derivative having a structure of formula (I), wherein R 1 , R 2 each independently represent a C1-C36 alkyl or aryl substituent; R 3 , R 4 , R 5 , R 6 , R 7 , R 8 each independently represent hydrogen or a C1-C36 substituent; the C1-C36 substituent is substituted in a single bond or in a ring; A1, A2 each independently represent oxygen, sulfur, selenium, a sulfoxide group, a sulfone group, a carbon substituent of a C1-C36 alkyl or aryl substituent, a nitrogen substituent of a C1-C36 alkyl or aryl substituent, or are not present. The polyboron-nitrogen derivative used in the present application has the characteristics of high light-emitting efficiency, high color purity, and suitability for solution process devices.

The invention relates to an organic compound, a light-emitting device and a display panel, the structural formula of the organic compound is # imgabs0, a deuterated aromatic ring is connected with benzanthracene and benzofurophenanthrene groups, when the compound is used as a main body material of a light-emitting layer, the compound has dark blue fluorescence emission, the light-emitting efficiency of the device can be improved, and the service life of the device can be prolonged.

The invention provides a pyrene and imidazole organic blue-light-emitting material, a preparation method and application thereof, and an organic electroluminescent device. The pyrenoimidazole organic blue-light-emitting material is an atypical donor-acceptor pyrenoimidazole organic blue-light-emitting small molecule material, and based on the concept of connection of two different pi conjugated groups, dark blue emission is constructed; a heat exciton mechanism is introduced, so that a reverse intersystem crossing (RISC) process can be promoted through relatively small delta EST, and high exciton utilization efficiency is realized; the pyrene and imidazole organic blue-light-emitting material disclosed by the invention has a good hole and electron injection function and has a bipolar transport characteristic; the pyrene and imidazole organic blue-light-emitting material overcomes the defects that traditional D-A molecules are low in excitation energy and long in light-emitting wavelength to a certain extent; non-doped and doped blue light OLEDs devices prepared from the pyrene and imidazole organic blue light material disclosed by the invention show relatively high device efficiency under high brightness.

The utility model discloses a school uniform coat, which relates to the field of clothes, and comprises a school uniform body, the school uniform body further comprises a first clothes body and a second clothes body, the first clothes body and the second clothes body are sewed, a collar is arranged at the top of the first clothes body, the collar and the first clothes body are sewed, and the front sides of the first clothes body and the collar are connected through a zipper. According to the utility model, the first garment body, the second garment body, the collar, the sleeves, the garment shoulders and the school badge are arranged, the first garment body and the sleeves are dark blue, the second garment body, the collar and the garment shoulders are light blue, the school badge is a white-bottomed dark blue character, and the school badge with the white-bottomed dark blue character is sewn on the dark blue first garment body, so that the school badge can be better highlighted; and deep blue and light blue are mixed and matched, so that the scattering and vigor flying of the students can be better shown, the collective recognition sense of the students can be enhanced, the styles and features of the schools can be conveniently shown, the identities of the students can be conveniently identified, and the trouble of dressing matching of the students can be reduced.

The invention provides a binuclear metal compound and application thereof. The binuclear metal compound has a structure as shown in a formula (I). When the binuclear metal compound is applied to an OLED (Organic Light Emitting Diode), especially in a blue light emission region, the binuclear metal compound shows enhanced phosphorescence quantum yield, is good in luminescence stability and high in luminescence efficiency, and is suitable for serving as an emitter material in the OLED application; according to the metal compound, the organic electroluminescence device with dark blue phosphorescence electroluminescence and improved luminous efficiency can be obtained, the thermal stability of the light-emitting device is good, and the metal compound has wide application prospects in the fields of OLED display and illuminating lamps. # imgabs0 #

The invention discloses a simple and low-cost preparation method of a dark blue organic light emitting diode material benzo [k] fluoranthene. The method comprises the following steps: by taking aryl halide as an initial raw material, activating the aryl halide and inorganic alkali under heating under the action of a catalytic system, carrying out DA reaction under the light irradiation under the synergistic catalysis of polycyclic aromatic hydrocarbon and a metal catalyst, and oxidizing by an oxidant to obtain the benzo [k] fluoranthene. Wherein the polycyclic aromatic hydrocarbon has an autocatalytic effect under illumination, and cooperates with metal halide as a reaction catalyst to activate carbon halogen bonds on halogenated aromatic hydrocarbon, so that the halogenated aromatic hydrocarbon and the polycyclic aromatic hydrocarbon are subjected to cycloaddition Diels-Alder reaction, and then aromatization is performed to obtain the target product benzo [k] fluoranthene. All raw materials involved in the synthetic route are cheap and easy to obtain, and expensive and dangerous chemical raw materials are avoided. The reaction is carried out under illumination, the condition is mild, compared with a traditional high-temperature reaction condition, the condition is better, and the green chemistry and sustainable development concepts are met.

The present invention relates to a metal platinum complex and its application. When used in OLEDs, especially in the blue light emitting region, the metal platinum complex exhibits enhanced phosphorescence quantum yield, good luminescence stability, and high luminescence efficiency. The complex is suitable for use as an emitter material in OLED applications. The metal platinum complex of the present invention can produce an organic electroluminescent device with deep blue electroluminescence and improved luminescence efficiency, and the light-emitting device has good thermal stability. The metal platinum complex of the present invention regulates its photophysical properties by adjusting the structure of ligands surrounding the metal center and the structure of substituents on the ligands. The complex has the advantages of a narrow emission spectrum, high stability, and high efficiency, and has broad application prospects in many fields of OLED displays and lighting.

1. Name of the product in this design: Cockpit Status Viewing Graphical User Interface for Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design feature of this product is its graphical user interface. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Design 1 is designated as the basic design. 6. Purpose of the graphical user interface: To view details of the vehicle's cockpit status. 7. Human-computer interaction methods of graphical user interface: Design 1 is the vehicle production details viewing interface of Deep Blue SL03 cockpit as the main view; Design 2 is the vehicle delivery details viewing interface of Deep Blue SL03 cockpit as the main view.

A method for synthesizing a variety of mixed-carbene iridium(III) complexes for use as phosphorescent emitters. Organic light-emitting diodes (OLEDs) based on these phosphorescent emitters have a high external quantum efficiency (EQE) on the order of 8.5 and 8.8%, with CIE coordinates on the order of (0.15, 0.09) and (0.15, 0.07), respectively. These properties render them useful for constructing efficient deep blue-emitting OLEDs.

This invention relates to the field of nanomaterials and photovoltaic devices, specifically a method for preparing ultrafine nickel oxide nanoparticles, comprising the following steps: weighing Ni(NO3)2·6H2O into a beaker, adding deionized water, preparing a nickel nitrate solution with a concentration of 3-5 mol / L, adding ammonia dropwise to the solution until the pH value of the solution is 9-10, obtaining a deep blue mixed solution; centrifuging the mixed solution with deionized water, repeating this process three times to obtain a uniform green colloidal precipitate; drying the colloidal precipitate in a freeze dryer for 6-24 hours, removing it, grinding it into powder, and calcining it in a muffle furnace to obtain black nickel oxide nanoparticles. The prepared ultrafine nickel oxide nanoparticles have small size and good solution dispersibility, and can be used to prepare flat and dense hole transport layer films, showing good application prospects in the field of perovskite solar cells.

The present invention relates to the technical field of the preparation of quantum dots, and particularly to a method for preparing deep blue light efficient narrow spectral band perovskite quantum dots. The present invention provides a method for preparing deep blue light efficient narrow spectral band perovskite quantum dots, comprising the following steps: mixing alkyltrimethylammonium bromide and N,N-dimethylformamide for the first time to obtain a soft template precursor solution; mixing cesium halide, lead halide, amino hydrobromide and N,N-dimethylformamide for the second time to obtain a perovskite quantum dot precursor solution; mixing the soft template precursor solution, the perovskite quantum dot precursor solution and an antisolvent, performing a precipitation reaction, and centrifuging and purifying and separating to obtain the deep blue light efficient narrow spectral band perovskite quantum dots. The perovskite quantum dots prepared by the preparation method exhibit ultra-high color purity and have extremely high fluorescence quantum yields.

The invention discloses a thermally activated delayed fluorescent material, a preparation method thereof and a luminescent device, and relates to the technical field of organic luminescent materials. The structural formula of the thermal activation delayed fluorescence material is shown in the specification, wherein R1 is H, tert-butyl or methyl, and R1 is located at any connectable position on a benzene ring; r < 2 >, R < 3 >, R < 4 > and R < 5 > are each independently H, tert-butyl or phenyl; a is an m-cyanophenyl group, a p-cyanophenyl group, a cyano group, or; representing a connection site; r6 is H or alkyl, R6 is located at any connectable position on a benzene ring, and M is O or N. The thermally activated delayed fluorescence material provided by the invention has relatively high fluorescence quantum yield and rapid reverse intersystem crossing rate, emits dark blue light, has the emission wavelength of 444-457 nm, is matched with a dark blue light MR material with a narrow-band emission characteristic, and has a wide application prospect. Therefore, the thermal activation delayed fluorescence material provided by the invention can be used as a sensitizer to realize preparation of a deep blue light super-fluorescence device.

This invention discloses a blue thermally activated delayed fluorescence (TADF) material, its preparation method, and its applications, belonging to the field of luminescent materials technology. Using a triazine unit as an electron acceptor and an organophosphorus-modified diphenyl acridine as an electron donor, a blue TADF luminescent material, TRz-POAc, was synthesized. Organophosphorus modification can effectively regulate the molecular twist angle, intermolecular interactions, and photophysical properties. The prepared TRz-POAc exhibits a molecular twist angle of 83.7°, with no significant π-π stacking between molecules, and a singlet-triplet bandgap (ΔEST) as low as 0.02 eV, enabling efficient reverse system crossing (RISC) processes. In doped devices, the maximum EQE reaches 22.26% with 20 wt% doping; in undoped devices, the maximum EQE is still as high as 21.00%, demonstrating excellent deep blue light emission performance and its application potential in undoped devices.

The invention relates to an organic compound, an organic electroluminescent device and a display panel, the structural formula of the organic compound is shown in the following general formula: # imgabs0 #: pyrene, benzanthracene and benzodibenzofuran are combined to construct a deuterium-substituted organic compound, and the organic compound can be used as a material of a blue light emitting layer. And longer device service life and deeper blue light emission can be realized.

The application discloses a kind of blue light organic semiconductor materials of aromatic and sila polybasic ring and preparation method and application thereof.The structural formula of the blue light organic semiconductor material is as follows: wherein, Ar1, Ar2 are function control group, and Ar3 is H or function control group.The present application connects different modification groups on the 4th position of naphthalene ring and the 2,3 position of diphenylnaphthosila six-membered ring to control the luminescence physical property and energy level characteristic of derivative thereof.The prepared luminescent material has high-efficiency blue or deep blue emission under solid state, and has significant aggregation-induced emission performance;The energy level structure of the material has good regulation characteristics, so as to adjust the electron / hole injection performance of the material, which is beneficial to the simplification of device structure;All materials have good stability and film-forming property, can be dissolved in organic solvent to form film by spin coating or vacuum evaporation, and device preparation process is flexible.

The invention provides an imidazolyl dibenzo [a, h] anthracene organic fluorescent small molecular material as well as a preparation method and application thereof. A molecular skeleton of the compound is composed of central imidazolyl 3, 10-di-tert-butyl dibenzo [a, h] anthracene (DBA) and imidazole ring C2 substitution units A and N1 substitution units B on the two sides, all of which are of symmetrical X-shaped line-plane conjugated structures, emit blue light or dark blue light in solution and film states, and have good solubility, luminous efficiency, thermal stability and carrier transport capacity. With TCTA as a host material and six materials as object dopants, preparing a blue light or dark blue light OLED device by adopting a solution spin-coating method; under the condition that a hole transport layer is not added, the six devices are pure in light color, high in external quantum efficiency (EQE), slow in efficiency roll-off and good in efficiency stability and have practical application value in the field of dark blue light OLEDs, and the two new materials subjected to position isomerization can provide a new direction for development of the dark blue light OLED devices based on N1 substituted imidazole derivatives.

The invention discloses a D-A type covalent organic framework material as well as a preparation method and application of the D-A type covalent organic framework material. The material is obtained through aldehyde amine condensation by using N, N ', N'-tetra (p-aminophenyl) p-phenylenediamine (TAPB) as a donor unit and 3, 6-bis (5-aldehyde thiophene-2-yl)-2, 5-bis (2-ethylhexyl) pyrrolo [3, 4-c] pyrrolo [3, 4-c] pyrrole-4 (2H, 5H)-diketone (DSZ) as an acceptor unit, and the material is of a two-dimensional layered porous structure, is dark blue and has reversible switching electrochromic performance from dark blue to nearly transparent color. According to the invention, a donor-receptor type covalent organic framework structure is constructed through TAPB and DSZ, and reversible color change from dark blue to nearly colorless in a near-infrared region is realized by using synergistic oxidation reduction of a D-A unit and charge transfer characteristics of a conjugated framework.

The present invention belongs to the field of new display materials, quantum dot materials, and discloses a carbon dot with deep blue light emission characteristics, as well as a preparation method and application. Preparation method: (1) Weigh perylene and PTCDA or perylene and propylene diamine as reaction precursors in a molar ratio of perylene:PTCDA / propylene diamine = (1-5) : 1; (2) Add ethanol sulfuric acid solution or DMF to the above reaction precursors and place them in a hydrothermal reactor for solvent thermal reaction; (3) After the solvent thermal reaction is completed, filter, centrifuge and dialyze the reaction solution, and finally dry it to obtain carbon dots. Application of the carbon dots with deep blue light emission characteristics in deep blue photoelectroluminescent diodes. The carbon dots developed by the present invention have deep blue light emission characteristics (emission peak ≤ 465 nm), can be used in deep blue photoelectroluminescent diodes, have broad application prospects, and have a simple preparation process and low cost. It is a convenient and environmentally friendly method for large-scale synthesis of carbon dots.

The present specification relates to a delayed fluorescence compound represented by chemical formula 1 and an organic light-emitting device comprising same, and achieves delayed fluorescence light sensitive hyperfluorescence properties by the use of a compound that exhibits deep blue properties and has a low singlet-triplet energy difference, and a fluorescence compound which, relative to conventional delayed fluorescence material, exhibits deep blue properties, has a narrow half-width, and has excellent color purity.

The present application relates to a kind of pyrene organic compounds, mixture, composition and organic electronic device.The pyrene organic compound has the structure shown in formula (I), has fluorescent emission with short wavelength of luminescence wavelength, shows deep blue fluorescent emission.The pyrene organic compound described in the present application is used as guest light-emitting material, in the light-emitting layer of organic electronic device, can effectively improve the luminous efficiency and lifetime of organic electronic device.

The present invention discloses a deep blue circularly polarized luminescent thin film, its preparation method and application, which are characterized by including the following steps: S1: Prepare an electrospinning precursor solution: Using chiral aromatic amine salt, alkylamine salt (or formamidine salt or cesium salt) and lead halide as perovskite precursor salts, oleylamine and oleic acid as small molecule ligands, and polymer as the spinning matrix, and using N,N-dimethylformamide as the solvent to prepare the spinning precursor solution; S2: Place the spinning precursor solution described in step S1 in an electrospinning instrument and equipment for spinning, so that quasi-two-dimensional perovskite grows in the polymer to obtain a deep blue circularly polarized luminescent thin film. The synthesis method of the present invention is simple, and the obtained thin film has enhanced circularly polarized luminescence performance. Moreover, the excellent deep blue circularly polarized luminescence performance of the thin film at room temperature also makes it have great potential in circularly polarized luminescence devices.