1931 results about "Luminescent material" patented technology

The embodiments of the present disclosure provide a display panel, including: a base substrate, a first electrode layer, a luminescent material layer, a second electrode layer, an elastic lens layer and at least one light wavelength conversion layer arranged in sequence. The luminescent material layer is configured to emit an excitation light, the at least one light wavelength conversion layer is configured to convert the excitation light emitted from the luminescent material layer into light of a predetermined color, and the elastic lens layer is configured to converge the excitation light emitted from the luminescent material layer. The embodiments of the present disclosure further provide an electronic device and a method of manufacturing a display panel.

The invention belongs to the technical field of organic electroluminescent materials, and provides an iridium-containing heterocyclic phosphorescent doping material and an organic electroluminescent device.The doping material has a compound general formula shown in the formula I. Quinoline and a naphthalene ring are connected through silane or germane, and a silicon or germanium six-membered heterocyclic structure is formed. And reacting with iridium metal and a diketone monomer to obtain the iridium metal heterocyclic phosphorescent organic light-emitting material. The heteroatom silicon or germanium in the material can adjust molecular orbital HOMO and LUMO energy levels, and the polarity effect of heteroatoms promotes electron migration, reduces interface potential barriers and electron injection barriers, reduces carrier injection loss and improves carrier mobility, so that driving voltage is reduced, and the external quantum efficiency of a device is improved. In addition, the silicon or germanium heterocyclic ring has better rigidity, so that the overall stability of the structure is enhanced, and the rigid structure can prolong the service life of the device.

A spectrometer apparatus (110) and method of obtaining spectroscopy information about at least one object (112) are disclosed. The spectrometer device (110) comprises: at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light emitting diode (118) and at least one luminescent material (120) for converting primary light generated by the light emitting diode (118) into secondary light; ii. At least one broadband detector (128) for detecting detection light (130) within a spectral range at least partially comprising a spectral range of the primary light and the secondary light, the broadband detector (128) is configured to generate at least one primary detector signal upon detection of the detection light (130) within the spectral range of the primary light, where the broadband detector (128) is further configured to generate at least one secondary detector signal upon detection of the detection light (130) within the spectral range of the secondary light; and iii. At least one evaluation unit (136) for evaluating the primary detector signal and the secondary detector signal generated by the broadband detector (128), for determining responsivity information (137) about the broadband detector (128) from one of the primary detector signal or the secondary detector signal, and for deriving spectroscopy information about the object (112) from the other of the primary detector signal or the secondary detector signal by taking into account responsivity information (137) about the broadband detector (128).

The invention provides europium-doped silicate green fluorescent powder as well as a preparation method and application thereof, and belongs to the technical field of luminescent materials. The green fluorescent powder can generate narrow-spectrum green light with the peak value located at 532 nm under excitation of 450 nm blue light, the full width at half maximum is 46 nm, a white light LED device prepared based on the fluorescent powder has a 110% NTSC color gamut, and it is indicated that the green fluorescent powder has excellent application value in backlight display. The saturation threshold value of the fluorescent powder reaches 21.6 W / mm < 2 > under the excitation of 450nm blue laser, and the lumen at the moment reaches 1157.9 lm. The green fluorescent powder disclosed by the invention has the advantages of high luminous efficiency, narrow full width at half maximum, high light saturation threshold under blue laser excitation, high lumen efficiency and the like, and has application feasibility in the aspect of laser display.

The invention discloses fluorescent glass ceramic, a preparation method thereof and a luminescent device, and belongs to the technical field of luminescent materials. The fluorescent glass ceramic comprises glass powder and fluorescent powder, the glass powder comprises zinc borosilicate glass powder; the zinc borosilicate glass powder comprises the following components in percentage by mole: 5%-20% of SiO2, 10%-35% of B2O3, 20%-65% of ZnO, 0.3%-15% of P2O5, 2%-20% of RO and 0.1%-15% of R2O, RO is selected from at least one of MgO, CaO, SrO and BaO, and R2O is selected from at least one of Li2O, Na2O and K2O; the fluorescent powder comprises blue-green fluorescent powder; the emission peak wavelength of the blue-green fluorescent powder is 480-510 nm; based on the total mass of the glass powder and the fluorescent powder, the mass percentage content of the glass powder is 30-80%, and the mass percentage content of the fluorescent powder is 20-70%. The fluorescent glass ceramic is high in reliability and can be applied to high-power light emitting, a light emitting device formed by combining the fluorescent glass ceramic and a proper light source can provide an accurate azure light emitting effect, and the requirements in application scenes with harsh color requirements are met.

The invention belongs to the technical field of luminescence and display, and particularly relates to a D-A type green light TADF material and application thereof in OLEDs. The luminescent material comprises an oxygen bridge triphenylboron acceptor unit and oxygen bridge triphenylamine which are used as donor units, and a green light TADF material is constructed through simple coupling. The rigid large plane structure of the material limits rotation of a benzene ring, vibration relaxation of a condensed ring structure is reduced, and the photoluminescence efficiency as high as 90% is obtained. Research results show that the maximum emission peak of the device is 518 nm and the maximum external quantum efficiency (EQE) of the device is 37.8% under different doping concentrations when the OLEDs are processed by the solution, especially under the doping concentration of 5-100%, the electrogenerated emission peak change of the device is small, the EQE of 30% or above is kept, the excellent concentration quenching inhibition performance is shown, and the application prospect is attractive.

The invention relates to a preparation method of a terbium-doped gadolinium oxysulfide fluorescent material. The performance of the material is remarkably improved through an optimized high-temperature solid-phase method. According to the process, firstly, polyvinylpyrrolidone (PVP) and dopamine hydrochloride are used as a dispersing agent and a coating agent to prepare uniformly dispersed Gd2O3 and Tb4O7 oxide precursors, then through a fluxing agent system with the synergistic effect of boric acid and lithium carbonate and in combination with a low-temperature pre-sintering-medium-temperature vulcanization-high-temperature crystallization three-stage sintering process, grain aggregation and abnormal growth are effectively inhibited, and the Gd2O3 / Tb4O7 composite material is obtained. And finally, annealing in air to remove carbon impurities to obtain the superfine fluorescent powder with small particle size and narrow distribution. Experiments show that the particle size D50 of the fluorescent powder in the embodiment is 496-678 nm, the fluorescence decay life exceeds 1100 microseconds, the luminous intensity is high, the stability is excellent, and the fluorescent powder has wide application prospects in the fields of liquid crystal display, biomedicine and the like.

The invention provides a red light and infrared light-emitting compound based on a boron-nitrogen fused ring and application thereof. The invention provides a boron-nitrogen polycyclic aromatic hydrocarbon material of a fused naphthalene ring, and a specific strong electron withdrawing group is introduced to a boron atom para-position. Compared with a compound disclosed in the prior art, the compound provided by the invention introduces a strong electron withdrawing group to a boron atom para-position of boron-nitrogen polycyclic aromatic hydrocarbon of a fused naphthalene ring, so that the emission spectrum of the material can be subjected to significant red shift (red shift from a yellow light band to a red light band and even an infrared band), and red light and even infrared light emission with high luminous efficiency and a narrow band can be realized. An electroluminescent device prepared from the compound provided by the invention shows relatively high luminescent color purity and relatively excellent luminous efficiency, and can meet the requirements of current enterprise production on high-performance luminescent materials.

This application belongs to the field of luminescent materials technology, and particularly relates to a Mn 4+ Activated high-entropy fluoride red luminescent materials, their preparation methods, and applications. Including materials with the molecular formula A2X. 1‑y F6:yMn 4+ BX 1‑ y F6:yMn 4+ C3X 1‑y F6:yMn 4+ D2X 1‑y F7:yMn 4+ At least one luminescent material, wherein the A-site, C-site, and D-site are each independently selected from NH4. + Li + Na + K + 、Rb + Cs + (CH3)4N + At least one of the following: B site is selected from Ba and / or Zn; each luminescent material contains at least four metal elements at the X site, with the molar ratio of each metal element ranging from 5% to 35%, and y in each luminescent material independently satisfies 0 < y < 0.5. Through compositional design, the high-entropy fluoride matrix exhibits high disorder and large lattice distortion, which is Mn 4+ It provides a low-symmetry lattice environment, enhances radiative transitions, and significantly improves the luminescence efficiency and optical performance of various luminescent materials.

The invention belongs to the technical field of organic electroluminescence, and particularly provides an electroluminescent material and an organic electroluminescent device comprising the same, the electroluminescent material comprises a combination of a first organic compound and a second organic compound, the first organic compound has a structure as shown in a formula I, and the second organic compound has a structure as shown in a formula II; the second organic compound has a structure as shown in a formula II; through structural design of the first organic compound and the second organic compound, particularly introduction of a substituent group at a specific site, and synergistic compounding of the two organic compounds, the material has higher glass transition temperature Tg and excellent thermal stability while having excellent photoelectric properties and carrier transport properties. The electroluminescent material is used for the organic electroluminescent device, is especially suitable for a luminescent layer, and can effectively ensure the uniformity of a deposited film, so that the thermal stability of the device is excellent, and the high-temperature test life is remarkably prolonged.

The invention discloses a preparation method and application of a multimode luminescent cesium yttrium chloride lead-free perovskite luminescent material. In the specific synthesis process, firstly, precursor materials-cesium carbonate, yttrium carbonate and cerium acetate are dissolved in a mixed solution of glacial acetic acid and hydrochloric acid, and a precursor solution is obtained; then dissolving a certain amount of antimony acetate with acetonitrile to form an anti-solvent solution; and finally, adding the precursor solution into the anti-solvent solution to obtain the Sb / Ce double-doped cesium yttrium chloride lead-free perovskite luminescent material. During application, the Cs3YCl6 Sb and the Cs3YCl6 Sb / Ce luminescent materials are combined for use to form a pattern, and protected information can be decrypted through a specific excitation wavelength. According to the invention, the cesium yttrium chloride lead-free perovskite luminescent material capable of realizing multimode luminescence can be prepared in a short time.

The utility model provides a luminous organic silicon pad which comprises an organic silica gel layer, a base material layer and an anti-skid layer which are sequentially arranged from top to bottom, and the organic silica gel layer is formed by adding a luminous material into liquid silica gel. According to the utility model, the surface layer of the luminous organic silicon pad is made of the organic silica gel, so that the antifouling, hydrophobic, anti-skid and scratch-resistant properties of the luminous organic silicon pad can be improved, and the prepared organic silica gel layer can have the luminous property by adding the luminous material into the liquid silica gel, so that the luminous effect of the luminous organic silicon pad is improved. According to the invention, the discrimination of a user in a dark environment can be improved, and meanwhile, the use interestingness of the user can be improved.

The invention belongs to the field of luminescent materials, and relates to stimuli-responsive self-repairing fluorescent hydrogel. In particular to stimuli-responsive self-repairing fluorescent hydrogel as well as a preparation method and anti-counterfeiting application thereof. According to the method, firstly, hydrophobic anthryl fluorophore 9-anthracene methyl methacrylate is wrapped by an aggregate formed by a surfactant hexadecyl trimethyl ammonium chloride to form micelles, and then, a micelle solution and polymer monomers acrylic acid and zirconium chloride are subjected to free radical-initiated copolymerization to obtain the stimuli-responsive fluorescent hydrogel. The hydrogel has self-repairing capability and fluorescence stimulation response capability, and is expected to be applied to the fields of bionic intelligent materials and information.

The invention provides a light generating system (1000) comprising light generating devices (110,120,130), a luminescent material (200), a control system (300), optics (500), a polarization control system (600), a diffuser system (1710), and a light exit (1090); wherein: (I) each of the light generating devices (110,120,130) comprise a solid-state light source (10,20,30); the luminescent material (200) is configured to convert at least part of the device light received by the luminescent material (200) into luminescent material light (201): the diffuser system (1710) is configured to diffuse at least part of the device light received by the diffuser system (1710) into diffused device light (711); (II) the optics (500) comprise redirection optics (510); wherein the redirection optics (510) comprise polarization based redirection optics (PPBS1,PBS2) and dichroic based redirection optics (DBS1,DBS2); (III) a first dichroic redirection optics (DBS1) is configured to combine first device light (111) and second device light (121) received by the first dichroic redirection optics (DBS1); the polarization control system (600) is configured to control a polarization of device light propagating from the first dichroic redirection optics (DBS1) to the first polarization redirection optics (PPBS1) via the polarization control system (600); the first polarization redirection optics (PPBS1) is configured to direct device light received from the first dichroic redirection optics (DBS1), in dependence of its polarization, to one or more of (a) the luminescent material (200) via second dichroic redirection optics (DBS2) and (b) the diffuser system (1710) via second polarization redirection optics (PBS2); the second dichroic redirection optics (DBS2) is configured to direct device light received from the first polarization redirection optics (PPBS1) to the luminescent material (200) and to direct the luminescent material light (201) to the light exit (1090); the second polarization redirection optics (PBS2) is configured to direct the device light received from the first polarization redirection optics (PPBS1) to the diffuser system (1710) and to direct diffused device light (711) to the light exit (1090); and (IV) the control system (300) is configured to control a spectral power distribution of system light (1001) of the light generating system (1000).

The invention belongs to the technical field of organic electroluminescence, and particularly relates to a boron nitrogen-phosphorus oxygen skeleton fused series compound and an organic electroluminescence device.A phosphorus oxygen unit is introduced into a boron / nitrogen type multiple resonance thermal activation delayed fluorescence skeleton through a one-step phosphorus oxygen post-modification method, metal does not need to participate in the synthesis route, the yield is high, and the method is suitable for industrial production. A universal strategy is provided for expanding the structural diversity of an MR-TADF system, the provided multi-resonance type thermally activated delayed fluorescent material containing fusion of the boron, nitrogen and phosphorus oxygen frameworks has the characteristic of wide color gamut emission, and an organic electroluminescent device prepared by using the material as a luminescent material realizes wide color gamut and narrow spectrum TADF emission and has wide application prospects. And the electroluminescent device has relatively low efficiency roll-off, and is an organic luminescent functional material with good performance.

Provided is a light-emitting material with polycyclic ligand. The light-emitting material is a metal complex with polycyclic ligand and may be used as a light-emitting material in an electroluminescent device. While maintaining a very narrow FWHM, these novel metal complexes can better adjust the light-emitting color of the device, reduce the driving voltage of the device or maintain the driving voltage at a low level, improve device efficiency, greatly increase the lifetime of the device, and provide better device performance. Further provided are an electroluminescent device and a compound composition.

The invention belongs to the technical field of organic light-emitting materials, and particularly relates to a carborane derivative as well as a preparation method and application thereof. According to the invention, carborane with great application potential is combined with an imine structure which is widely applied to obtain a series of novel carborane imine compounds, so that the blank of carborane ketimine is filled, and the preparation method of the carborane imine compounds is obtained by research; nested carborane formed after boron removal of the compound has a good fluorescent effect and is expected to be used in the technical field of organic light-emitting materials.

The invention provides a glass / ceramic composite block luminescent material as well as a preparation method and application thereof, transparent glass glaze is applied to a SrAl2O4: Eu, Dy long-afterglow ceramic matrix, the transparent glass glaze forms a transparent glass layer to coat the surface of the SrAl2O4: Eu, Dy long-afterglow ceramic matrix through high-temperature sintering at 1180-1260 DEG C, and the glass / ceramic composite block luminescent material is prepared. The prepared glass / ceramic composite block luminescent material has excellent hydrolysis resistance and optical performance, can effectively solve the problem that SrAl2O4: Eu, Dy long-afterglow ceramic is easy to hydrolyze in a humid environment, and also has optical information storage capability, so that the application field of the glass / ceramic composite block luminescent material is further expanded, and the glass / ceramic composite block luminescent material has wide application prospects. The method has important technical value and application prospect.

An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first compound represented by a following formula, a second compound as a p-type host, and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan.

The invention belongs to the field of synthesis of luminescent materials, and relates to a preparation method and application of a zero-dimensional manganese-based hybrid halide nanofiber membrane with reversible photoluminescence and radiation luminescence conversion. The synthetic route is as follows: preparing a precursor from 4-dimethylaminopyridine (DMAP) and hydrochloric acid, then synthesizing zero-dimensional organic-inorganic metal chloride with manganese chloride hydrate (MnCl2. 4H2O) and anhydrous manganese chloride (MnCl2), further mixing the zero-dimensional organic-inorganic metal chloride with polyvinylidene fluoride (PVDF), and performing electrostatic spinning to obtain a nanofiber film; compared with the prior art, the stimuli-responsive reversible PL switch flexible fiber membrane prepared by adopting an electrostatic spinning technology has excellent stability and PL switch performance, and can show efficient PL and RL switching under external stimuli. Meanwhile, the flexible nanofiber film produced by the method has the advantages of one-step synthesis, quick response, repeatability, good portability and low cost, so that the flexible nanofiber film becomes a new application of molecular-level dynamic photonic devices for data storage, information security, optical logic gates, flexible X-ray imaging and the like.

The invention relates to the technical field of semiconductor display, in particular to a vehicle-mounted high-color-gamut QD-LED backlight display module which further comprises a high-color-gamut QD-LED lamp bead which serves as a lateral light source and is arranged on at least one side edge of a light guide plate. The high-color-gamut QD-LED lamp bead comprises a circuit board and a plurality of LED lamp beads welded on the circuit board, and the LED lamp beads are patch devices packaged by composite luminescent materials of green quantum dots and KSF fluorescent powder. The circuit board and the LED lamp beads on the circuit board are integrally packaged by a silica gel packaging layer, and the silica gel packaging layer is connected with the light guide plate through a light guide protection layer, so that the high-color-gamut QD-LED lamp beads and the light guide plate are integrated. Through multi-dimensional collaborative innovation, the problems of reliability, light quality, mechanical durability and the like are comprehensively solved, a vehicle-mounted display backlight solution which is ultrahigh in color gamut, high in brightness, high in uniformity, high in reliability and long in service life is created, and high commercial value and market prospects are achieved.

This invention provides a red-emitting borosilicate perovskite quantum dot glass and its preparation method, belonging to the field of solid-state luminescent materials. This invention obtains red-emitting borosilicate perovskite quantum dot glass through a self-crystallization method. The preparation process does not require annealing or heat treatment, is simple and energy-efficient, and can be mass-produced. Furthermore, the prepared red-emitting borosilicate perovskite quantum dot glass exhibits excellent temperature resilience. The results of the examples demonstrate that the red-emitting borosilicate perovskite quantum dot glass prepared by the method provided in this invention possesses excellent temperature resilience.

The application provides a manganese-activated antimony acid-based fluorescent powder and a preparation method and application thereof, and relates to the technical field of luminescent materials. 1‑ x Y x )3Li5Sb 2‑y O 12 :yMn, and 0 < x <= 0.3, 0.001 <= y <= 0.01. 3+ The Y 3+ can improve the luminous efficiency and thermal stability of the fluorescent powder, and the fluorescent powder can emit red fluorescence with a wave band of 650nm-770nm under near-ultraviolet light and blue light excitation.

A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a first element, a first reflective film, and an insulating film. The first element includes a first electrode, a second electrode, and a layer containing a light-emitting material; the layer containing a light-emitting material includes a region interposed between the first electrode and the second electrode; the first electrode has a light-transmitting property; and the first electrode has a first thickness. The first electrode is interposed between a region of the first reflective film and the layer containing a light-emitting material, and the first reflective film has a second thickness. The insulating film includes a first opening portion, and the first opening portion overlaps with the first electrode. The insulating film has a first step-like cross-sectional shape, and the first step-like cross-sectional shape surrounds the first opening portion. The first step-like cross-sectional shape includes a first step, and the first step is larger than or equal to a thickness obtained by adding the second thickness to the first thickness.

The invention belongs to the technical field of biosensors, and provides a tobacco mosaic virus (TMV) dual-mode biosensor as well as a preparation method and application thereof. The biosensor is composed of a dual-mode luminescent material Co / Ce-TCBPE (at) Ru (dcbpy) 32-COOH, a lateral flow chromatography LFIA flexible electrode, a TMV antibody Ab1, a TMV antibody Ab1 and a self-assembled micro electrochemical luminescence (ECL) sensor, and through qualitative and quantitative dual-signal output of vision and ECL detection, the TMV detection sensitivity and accuracy are remarkably improved. The detection range of the sensor is 0.1 pg / mL-100 ng / mL, the detection limit reaches 48.9 fg / mL, and the sensor has the advantages of simplicity and convenience in operation, quick response, high stability, dual signal guarantee and the like, is suitable for quick visual detection of plant diseases, and has a wide application prospect in agricultural detection.

The invention discloses a Tb < 3 + > activated niobate green stress luminescent material, and relates to the technical field of luminescent materials. The expression general formula of the mechanical luminescent material is (Ca2-xSrx) Nb2O7: yTb, x is greater than or equal to 0 and less than or equal to 1, and y is greater than 0 and less than or equal to 0.09; a high-temperature solid-phase method is adopted, and the preparation process comprises the following steps: 1) burdening; 2) grinding and drying; 3) sintering; and 4) grinding. The stress luminescent material provided by the invention has unique green stress luminescence after being radiated at 254 nm for 3 minutes, the spectral range of niobate stress luminescence is successfully expanded to a green area, the key problem that the existing niobate stress luminescent material has single luminescence color is solved, and the application potential of the material is remarkably improved; and the material shows excellent continuous luminescence performance, can continuously emit light for more than 5 minutes after an excitation light source is turned off, and has very wide application value in the fields of visual stress sensing, anti-counterfeiting encryption and the like.

The invention discloses an acridine-derived thermally activated delayed fluorescent material and an electroluminescent device thereof, and belongs to the technical field of organic luminescent materials. According to the fluorescent material, any electron withdrawing group is used as a receptor, an acridine derivative is used as a donor, nitrogen atoms of the acridine derivative are directly connected with the receptor, a dihedral angle between an electron donor and the electron receptor is increased, the dihedral angle is kept at an angle close to 90 degrees, meanwhile, the large-rigidity donor structure further reduces intramolecular vibration relaxation, and the fluorescence intensity is improved. In addition, HOMO delocalization can be further realized through side conjugation modification of acridine, so that large antiintersystem crossing rate and radiation decay rate are realized, the luminescence property of molecules is further improved, and the efficiency roll-off is reduced. The material provided by the invention can be used as an active material to be applied to organic electroluminescent devices.

A deuterated composition, a preparation method therefor, a light-emitting layer, and an organic light-emitting device, relating to the field of organic light-emitting materials. The deuterated composition comprises different deuterated compounds of a compound represented by formula I, wherein in formula I, Ar1 is selected from phenyl or naphthyl. For the different deuterated compounds of the same compound, the average deuteration rate of deuterium-exchangeable hydrogen atoms on Ar1 and anthryl is greater than 98%, and the average deuteration rate of deuterium-exchangeable hydrogen atoms on phenanthryl is 96%-98%. When the deuterated composition is used as a light-emitting material of organic light-emitting devices, the service lifetime of the devices is significantly prolonged.

This invention belongs to the field of luminescent materials technology, and discloses a green phosphor, its preparation method, and its application. The green phosphor has the chemical formula CaY. 1‑x GaO4:xCe 3+ Wherein, 0.02 ≤ x ≤ 0.2. The green phosphor of this invention, due to its specific composition, can be used not only in non-contact optical temperature measurement but also in indoor lighting. When applied to optical temperature measurement, it offers advantages such as rapid response, high resolution, high sensitivity, high temperature resistance, and no need for direct contact with objects. Furthermore, when mixed with blue LED chips and commercially available red phosphor, it can be used as a warm white LED device, which features low cost, stable performance, and good luminous effect.

The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; a first emitting part positioned between the first and second electrodes and including a first emitting material layer, a hole injection layer between the first electrode and the first emitting material layer and a first hole transporting layer between the hole injection layer and the first emitting material layer, wherein the hole injection layer includes a hole injection material, and the first hole transporting layer includes at least one of a first hole transporting material and a second hole transporting material, and wherein the first hole transporting material and the second hole transporting material are fluorene derivatives having different structures.