49 results about "Luminescent Agents" patented technology

The invention relates to the field of sensors, and discloses a solid electrolyte for ammonia gas detection, an electrochemical luminescence sensor, a preparation method and a detection method, and the solid electrolyte for ammonia gas detection comprises the following raw materials: a second electrolyte, a luminescent substance, an optional first electrolyte and an optional binder. The solid electrolyte for ammonia gas detection provided by the invention can realize ppb-level NH3 selective detection with high sensitivity, wide linear response range and low detection limit at room temperature for an electrochemical luminescence sensor for detecting ammonia gas. The electrochemical luminescence sensor for detecting the ammonia gas can be used for sensing the ammonia gas through a cyclic voltammetry method and a constant potential-luminescence technology, and ppb-level high-sensitivity and high-selectivity ammonia gas detection is realized.

This invention relates to a fully automated rapid silicate concentration detection method, comprising: S1, establishing a standard curve based on a silicate standard solution; S2, performing fully automated rapid silicate concentration detection based on the standard curve; S1 includes: S11, preparing the standard solution; S12, performing automatic sample injection and detection; S13, signal acquisition and processing; S14, fitting the standard curve; S15, verifying and storing the standard curve; S16, performing anti-interference verification, including: adding interfering substances to the standard solution to verify the reliability of the curve; S2 includes: S21, performing range calibration using the standard solution before sample measurement, setting the photomultiplier tube's high voltage value to V1 to achieve the standard measurement range; S22, preparing reagent A (2% ammonium molybdate), reagent B (4% dilute sulfuric acid), and reagent C (basic luminescent agent) required for fully automated rapid silicate concentration detection; S23, performing fully automated rapid silicate concentration detection based on the standard curve. A corresponding fully automated rapid silicate detector is also disclosed.

Provided is a light-emitting device with high reliability. The light-emitting device includes a first electrode formed on an insulating surface, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode, one of the first electrode and the second electrode is an anode, and the other is a cathode, the EL layer includes a light-emitting layer, a first layer, and a second layer, the first layer and the second layer are between the light-emitting layer and the cathode, the first layer is between the first electrode and the second layer, the second layer is between the first layer and the second electrode, the light-emitting layer contains a first light-emitting substance and a second light-emitting substance, the first light-emitting substance is a substance capable of converting triplet excitation energy into light emission, the second light-emitting substance is a fluorescent light-emitting substance, the light emission peak wavelength of the first light-emitting substance is shorter than the light emission peak wavelength of the second light-emitting substance, and the GSP_Slope of the second layer is greater than the GSP_Slope of the first layer.

The present invention relates to a system of at least two types of switchable capsule luminescent pigments, wherein the capsule luminescent pigments are polymer particles with a diameter of 0.1-1000 µm, each containing at least one luminescent substance and a photochemically switchable absorber, wherein a first type of capsule luminescent pigment comprises a first luminescent substance emitting in a first color in the VIS spectral range; a second type of capsule luminescent pigment comprises a second luminescent substance emitting in a second color in the VIS spectral range, wherein the first and the second color are different;and the two capsule luminescent pigments each comprise the same photochemically switchable absorber, wherein the photochemically switchable absorber has a first and a second switching state, and the absorption spectrum of the photochemically switchable absorber in the second switching state strongly overlaps with the excitation spectra of the first and the second luminescent substance. The present invention further relates to a switchable luminescent printing ink comprising a system of at least two types of switchable capsule luminescent pigments as described herein, and to a security document, preferably a banknote, with a switchable luminescent print comprising a system of at least two types of switchable capsule luminescent pigments as described herein.

A light-emitting device includes a first electrode over an insulating surface, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode. One of the first electrode and the second electrode is an anode, and the other is a cathode. The EL layer includes a light-emitting layer, a first layer, and a second layer. The first layer and the second layer are positioned between the light-emitting layer and the cathode. The first layer is positioned between the first electrode and the second layer. The second layer is positioned between the first layer and the second electrode. The light-emitting layer includes a first light-emitting substance and a second light-emitting substance. The first light-emitting substance is a substance capable of converting triplet excitation energy into light emission. The second light-emitting substance is a fluorescent substance. An emission peak wavelength of the first light-emitting substance is shorter than an emission peak wavelength of the second light-emitting substance. A GSP_Slope of the second layer is larger than a GSP_Slope of the first layer.

The present invention relates to a capsule luminescence pigment comprising a luminescent substance and a photochemically switchable absorber as a molecular switch, wherein the luminescent substance and the photochemically switchable absorber are dissolved and / or dispersed as separate molecules in a polymer particle, the luminescent substance has an energy transfer level relevant for luminescence, the photochemically switchable absorber has a first absorption spectrum in a first switching state and a second absorption spectrum in a second switching state, wherein the energy transfer level relevant for the luminescence of the luminescent substance falls significantly into an absorption band of the photochemically switchable absorber in the second switching state, so that significantly more intense luminescence of the luminescent substance occurs in the first switching state than in the second switching state of the photochemically switchable absorber.The present invention further relates to a switchable luminescent printing ink comprising a capsule luminescent pigment as described herein and to a security document, preferably a banknote, comprising an imprint with a first switchable luminescent printing ink as described herein.

A light-emitting device having favorable heat resistance is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the first anode and the cathode. The EL layer includes a light-emitting layer and a first layer. The first layer is positioned between the light-emitting layer and the cathode. The light-emitting layer and the first layer are in contact with each other. The light-emitting layer contains a first organic compound, a second organic compound, and a light-emitting substance. The first layer contains a third organic compound. The first organic compound and the third organic compound each have an electron-transport property. The second organic compound has a hole-transport property. The light-emitting substance emits red light. The first organic compound is represented by General Formula (G100). The third organic compound is represented by General Formula (G300).

A pneumatic vehicle tire which includes a sealant layer at least on the inner surface opposite the tread. The sealant layer has a radially inward-facing surface running in the axial direction substantially parallel to the belt package. Also provided is a process for detecting a pneumatic vehicle tire with a sealant layer and to a process for recycling a pneumatic vehicle tire with sealant. The sealant layer has at least one luminescent agent on its radially inward-facing surface. The tire is detected via the luminescent agent.

The invention discloses construction and application of a biosensor for triggering controlled release based on adjacent induced DNA strand displacement, and belongs to the technical fields of electrochemical luminescence, biological analysis and nano science. According to the invention, by integrating adjacent induced DNA strand displacement and controlled release strategies, the ultra-sensitive self-closing dual-mode biosensor taking the Au-Ag nanocluster as a luminous body is developed, and the ultra-sensitive self-closing dual-mode biosensor is used for trace detection of neuron-specific enolase. Due to the synergistic characteristic between the double metals, the Au-Ag nanocluster has high electrochemical luminescence (ECL) efficiency. Meanwhile, the reduction of S2O8 < 2-> is catalyzed by cyclic conversion between Fe < 2 + > / Mn < 3 + > and Fe < 3 + > / Mn < 4 + >, and a large amount of SO4 <-> is generated for ECL emission. The specific binding between the target antigen and the antibody can drive DNA strand displacement to open a blocked hole, so that the electrochemical probe falls off and the probe is quenched to release, the self-closing of an electrochemical signal and an ECL signal is realized, the detection sensitivity and accuracy of the sensor are effectively improved, and the sensor is suitable for immunoassay of various biomarkers.

The present invention relates to a system of at least two types of switchable capsule-luminescent pigments, wherein the capsule-luminescent pigments are polymer particles having a diameter of 0.1-1000 µm, each containing at least one luminescent substance and a photochemically switchable absorber, wherein a first type of capsule-luminescent pigment comprises a first luminescent substance emitting a first color in the VIS spectral range; a second type of capsule-luminescent pigment comprises the first luminescent substance and a second luminescent substance emitting a second color in the VIS spectral range, the first and the second colors being different from one another; and the two capsule-luminescent pigments each comprise the same photochemically switchable absorber, said photochemically switchable absorber having a first and a second switching state, wherein the absorption spectrum of said photochemically switchable absorber in the second switching state significantly overlaps the emission spectrum of the first luminescent substance. The present invention also relates to a switchable luminescent printing ink, comprising a system of at least two types of switchable capsule-luminescent pigments as described herein, and to a value document, preferably a banknote, having a switchable luminescent print that comprises a system of at least two types of switchable capsule-luminescent pigments as described herein.

The application relates to the technical field of organic photoelectric materials, in particular to a heterocyclic compound and an organic electroluminescent device thereof. The application provides a heterocyclic compound which has a higher triplet energy level than a light-emitting substance, proper HOMO and LUMO and good electron migration capacity, can improve the light-emitting efficiency of a device, reduce the driving voltage of the device and prolong the service life of the device, and is a kind of excellent OLED material.

The invention discloses an ionic elastomer photoelectric sensor based on triplet-triplet annihilation up-conversion and a preparation method of the ionic elastomer photoelectric sensor, and belongs to the technical field of functional materials and photoelectric sensing. The photosensitizer and the luminescence agent form a triplet state-triplet state annihilation up-conversion system. The preparation method comprises the following steps: respectively forming the ionic conductive phase and the optical active phase, mixing the ionic conductive phase and the optical active phase to form a homogeneous system, and curing and molding through photo-initiation polymerization. Under the optical excitation condition of a specific wave band, the ion elastomer can generate measurable electric signal output, so that conversion from an optical signal to an electric signal is realized. The flexible photoelectric sensor can be prepared by curing the material on the surface of an electrode, can work under the condition of no external bias voltage or low bias voltage, has the characteristics of good wavelength selectivity, excellent flexibility and stretchability and the like, and has an application prospect in the fields of wearable sensing and flexible electronics.

A scheme is presented for imaging a field of view (103) comprising a target (115) containing luminescent substances. A corresponding method (500) comprises setting (512-552) an analysis region (225; 260) to a portion of a luminescent image (205; 205F) surrounding a suspicious representation of the target (115) and segmenting (554-556) the analysis region (225; 260) into a detection zone (230d; 265d) of luminescent substances and a non-detection zone (230n; 265n); then displaying (558-586) the luminescent image (205; 205F) with the detection zone (230d; 265d) highlighted according to a validation indicator based on a segmentation quality. A computer program (400) for implementing the method (500) and a corresponding computer program product are also presented. Moreover, a corresponding system (100) is presented. Further presented are a surgical method, a diagnostic method and a therapeutic method based on the same scheme.

The application relates to the technical field of quantum dot materials, in particular to a high-stability quantum dot composite material and a preparation method thereof. Quantum dot microspheres are formed by coating Ag-In-Zn-S quantum dots with silica to form core-shell structure microspheres, then the quantum dot microspheres, polydimethylsiloxane and silica are blended in ethyl acetate, uniform fluorescent suspension is formed through ultrasonic stirring, then the fluorescent suspension is sprayed onto the surface of a substrate, and the composite material is obtained through drying. The green I-III-VI multi-component quantum dot microspheres are used as the light-emitting substance, the excellent light-emitting stability is realized by combining the microspherization with the hierarchical porous structure constructed on the surface of the substrate. The spraying process is simple in equipment, low in cost and green in environment protection. The obtained composite material not only has good light-emitting characteristics, but also effectively isolates water vapor, chemical corrosion and other harsh environments through the multi-scale hierarchical porous structure formed on the substrate, thereby excellent thermal stability, chemical stability and weather resistance are exhibited.

The present invention relates to a capsule luminescence pigment comprising a luminescent substance and a photochemically switchable absorber as a molecular switch, wherein the luminescent substance and the photochemically switchable absorber are dissolved and / or dispersed as separate molecules in a polymer particle, the luminescent substance has an excitation spectrum, the photochemically switchable absorber has a first absorption spectrum in a first switching state and a second absorption spectrum in a second switching state, the first absorption spectrum of the photochemically switchable absorber does not significantly overlap with the excitation spectrum of the luminescent substance, and the second absorption spectrum of the photochemically switchable absorber significantly overlaps with the excitation spectrum of the luminescent substance, so that in the first switching state significantly more intense luminescence of the luminescent substance occurs than in the second switching state of the photochemically switchable absorber.The present invention further relates to a switchable luminescent printing ink comprising a capsule luminescent pigment as described herein and to a security document, preferably a banknote, comprising an imprint with a first switchable luminescent printing ink as described herein.

Objects of the present invention are to provide: a light-emitting element having a long lifetime and good emission efficiency and drive voltage. One embodiment of the invention is a light-emitting element including, between an anode and a cathode, at least a stack structure in which a first layer, a second layer, and a light-emitting layer are provided in order from the anode side. The first layer includes a first organic compound and an electron-accepting compound. The second layer includes a second organic compound having a HOMO level differing from the HOMO level of the first organic compound by from −0.2 eV to +0.2 eV. The light-emitting layer includes a third organic compound having a HOMO level differing from the HOMO level of the second organic compound by from −0.2 eV to +0.2 eV and a light-emitting substance having a hole-trapping property with respect to the third organic compound.

The reliability of a light-emitting device is improved. Provided is a light-emitting device including a light-emitting layer between a first electrode and a second electrode. The light-emitting layer contains a light-emitting substance and a first organic compound. A difference between a sum of energy of the first organic compound in a ground state and energy of an oxygen molecule in a ground state and energy of a transition state formed by the first organic compound and the oxygen molecule is greater than or equal to 1.84 eV. A difference between the energy of the transition state formed by the first organic compound and the oxygen molecule and energy of an oxygen adduct of the first organic compound in a ground state is less than or equal to 0.87 eV.

Provided is a light-emitting device that has excellent characteristics. Also provided is a novel organic compound. The light-emitting device includes a first electrode, a second electrode, and a light-emitting layer, wherein: the light-emitting layer is located between the first electrode and the second electrode; the light-emitting layer includes a first organic compound and a light-emitting substance; and the first organic compound has deuterium in a partial structure that greatly contributes to a lowest triplet excited state.

The present invention relates to a system of at least two types of switchable capsule luminescent pigments, wherein the capsule luminescent pigments are polymer particles with a diameter of 0.1-1000 µm, each containing at least one luminescent substance and one photochemically switchable absorber, wherein a first type of capsule luminescent pigment comprises a first luminescent substance emitting in a first color in the VIS spectral range; a second type of capsule luminescent pigment comprises the first luminescent substance and a second luminescent substance emitting in a second color in the VIS spectral range, the first and second colors being different; and the two capsule luminescent pigments each comprise the same photochemically switchable absorber, wherein the photochemically switchable absorber has a first and a second switching state, and the absorption spectrum of the photochemically switchable absorber in the second switching state significantly overlaps with the emission spectrum of the first luminescent substance.The present invention further relates to a switchable luminescent printing ink comprising a system of at least two types of switchable capsule luminescent pigments as described herein, and to a security document, preferably a banknote, with a switchable luminescent print comprising a system of at least two types of switchable capsule luminescent pigments as described herein.

Objects of the present invention are to provide: a light-emitting element having a long lifetime and good emission efficiency and drive voltage. One embodiment of the invention is a light-emitting element including, between an anode and a cathode, at least a stack structure in which a first layer, a second layer, and a light-emitting layer are provided in order from the anode side. The first layer includes a first organic compound and an electron-accepting compound. The second layer includes a second organic compound having a HOMO level differing from the HOMO level of the first organic compound by from −0.2 eV to +0.2 eV. The light-emitting layer includes a third organic compound having a HOMO level differing from the HOMO level of the second organic compound by from −0.2 eV to +0.2 eV and a light-emitting substance having a hole-trapping property with respect to the third organic compound.

An analysis method includes: an inflow process of a solution containing a test object, a magnetic support on the surface of which a complex including an antibody labeled with a luminescent agent and recognizes the test object is formed, and a reaction aid to assist reaction of the luminescent agent in a flow cell; a process of capturing the magnetic support over a working electrode by a magnetic field; a process of making the luminescent agent illuminate by applying a voltage to the working electrode; and a process of measuring an amount of luminescence of the luminescent agent. The luminescent process includes: luminescence from action of a first neutral radical, produced from the reaction aid through a cation radical; and luminescence from action of a second neutral radical, produced not through a cation radical, on the luminescent agent. This increases the luminous efficiency of ECL and enhances detection sensitivity.

When laser-irradiation portions of N capillaries with capillary numbers n=1, 2, . . . , and N are arranged on a same plane, a laser-irradiation intensity of each capillary is denoted by L(n), and an output intensity of each capillary by a computer when a light emitting substance having an equal concentration exists inside each capillary is denoted by H(n), an absolute value of an average value of a second derivative of H(n) becomes smaller than an absolute value of an average value of a second derivative of L(n) for any refractive index n3 of a separation medium in a range of 1.33≤n3≤1.41 by digital correction by the computer, which changes according to the refractive index n3 (see FIG. 11).

The present invention provides a luminescent nanoparticle. The light-emitting nanoparticles have light-emitting stability and light resistance, and are low in biotoxicity. The light-emitting nanoparticles comprise a parent material and a light-emitting substance contained in the parent material, the parent material containing at least one cationic element selected from the group consisting of Ti, Si, Ca, Al, and Zr, and at least one anionic element selected from the group consisting of O and P, the concentration of the light-emitting substances in the parent material is such that the average distance between the light-emitting substances is 1.2 nm or more.

This utility model discloses a multi-color luminescent fluorescent toy, comprising a soft and translucent outer packaging bag and multiple inner packaging bags; the inner cavity of the outer packaging bag is divided into multiple independent receiving cavities by a separator strip; each receiving cavity is filled with an oxidizing liquid; the inner packaging bags are placed in each receiving cavity; each inner packaging bag is filled with a luminescent liquid or luminescent powder; the types of luminescent liquid or luminescent powder in each inner packaging bag are different, and by crushing the inner packaging bag, the luminescent liquid or luminescent powder reacts with the oxidizing liquid in the corresponding receiving cavity to emit light of the corresponding color; this utility model, by placing different types of luminescent liquid or luminescent powder in different receiving cavities of the outer packaging bag, allows the luminescent material (luminescent liquid or luminescent powder) to react with the oxidizing liquid after the inner packaging bag is crushed, producing light of multiple colors, and the soft outer packaging bag can be molded into different shapes according to actual needs, enhancing the toy's fun and visual effect.

Provided are a light-emitting device and a display device having good characteristics. A tandem light-emitting device includes a first light-emitting layer including a first light-emitting substance, a second light-emitting layer including a second light-emitting substance, both the first light-emitting substance and the second light-emitting substance being a TADF material, at least one of the first hole transport layer and the second hole transport layer contains an organic compound having a p-electron-rich heteroaromatic ring skeleton but not having a triarylamine skeleton, and the difference between the maximum peak wavelength in the emission spectrum of the first light-emitting substance and the maximum peak wavelength in the emission spectrum of the second light-emitting substance is 30 nm or less. The hue of light emitted by each of the first light emitting layer and the second light emitting layer is different from the hue of light emitted by the light emitting layer included in at least one of the plurality of adjacent light emitting devices.

A light-emitting device having favorable heat resistance is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the first anode and the cathode. The EL layer includes a light-emitting layer and a first layer. The first layer is positioned between the light-emitting layer and the cathode. The light-emitting layer and the first layer are in contact with each other. The light-emitting layer contains a first organic compound, a second organic compound, and a light-emitting substance. The first layer contains a third organic compound. The first organic compound and the third organic compound each have an electron-transport property. The second organic compound has a hole-transport property. The light-emitting substance emits red light. The first organic compound is represented by General Formula (G100). The third organic compound is represented by General Formula (G300).

The invention relates to a system consisting of at least two types of switchable encapsulated luminescent pigments, wherein the encapsulated luminescent pigments are polymer particles with a diameter of 0.1-1000 µm, each particle containing at least one luminescent substance and a photochemically switchable absorber; a first type of encapsulated luminescent pigment comprises a first luminescent substance which emits a first color in the VIS spectral range; a second type of encapsulated luminescent pigment comprises a second luminescent substance which emits a second color in the VIS spectral range, said first and second colors being different; and the two encapsulated luminescent pigments each comprise the same photochemically switchable absorber, said photochemically switchable absorber having a first and a second switched state, and the absorption spectrum of the photochemically switchable absorber greatly overlapping with the excitation spectra of the first and the second luminescent substance in the second switched state. The invention further relates to a switchable luminescent printing ink, comprising a system consisting of at least two types of switchable encapsulated luminescent pigments as described herein, and to a value document, preferably a banknote, having a switchable luminescent imprint, comprising a system consisting of at least two types of switchable encapsulated luminescent pigments as described herein.

The invention discloses an organic molecule with an ultrasonic activated luminescence property, a nanoparticle and application. The organic molecule comprises a porphyrin molecule, a cyanine molecule, a BODIPY molecule, an organic semiconductor polymer molecule containing a thiophene structure, an organic semiconductor polymer molecule containing a styrene structure and an anthracene derivative. According to the invention, through molecular structure screening, several kinds of organic molecules capable of emitting light through ultrasonic activation are used as illuminants, an amphiphilic polymer is used as a surfactant, and the nanoparticles capable of emitting light through ultrasonic activation are obtained through ultrasonic treatment. The invention also provides an application of the ultrasonic activated luminescence system in in-vivo imaging, the system takes an organic molecule with ultrasonic activated luminescence property as a luminescent substance, the ultrasonic activated luminescence system with near-infrared region emission can be constructed, and high-performance in-vivo imaging application is realized.

The invention discloses a sensing mechanism and method based on nano laser, and the method comprises the following steps: (1) selecting and matching a luminescent material which needs to meet the following conditions: the luminescent material is a marker capable of being used for luminescent sensing and also can be used as a gain medium of a nano laser; (2) energy level matching and optimization between all light-emitting molecules used in traditional sensing based on light-emitting signal intensity change as a nano laser gain medium and a surface plasmon structure; (3) obtaining a nano laser signal based on the surface plasmon array and the luminescent material system; and (4) the sensing based on the nano laser signal has higher sensitivity and resolution compared with the traditional sensing based on the intensity change of the light-emitting signal. The intensity of the nano laser in the invention is influenced by the intensity of the luminescent substance. The mechanism is disclosed for the first time, and compared with traditional luminous intensity sensing, nano laser has high sensitivity and resolution due to the ultra-narrow linewidth, and will play an important role in the future optical sensing technology.

The present invention relates to a capsule-luminescent pigment comprising a luminescent substance and a photochemically switchable absorber as a molecular switch, wherein the luminescent substance and the photochemically switchable absorber are dissolved and / or dispersed as separate molecules in a polymer particle, the luminescent substance having an excitation spectrum, and the photochemically switchable absorber having a first absorption spectrum in a first switching state and a second absorption spectrum in a second switching state, wherein the first absorption spectrum of the photochemically switchable absorber does not significantly overlap with the excitation spectrum of the luminescent substance and the second absorption spectrum of the photochemically switchable absorber does significantly overlap with the excitation spectrum of the luminescent substance, so that the luminescence of the luminescent substance is considerably more intense in the first switching state of the photochemically switchable absorber than in the second switching state of the photochemically switchable absorber. The present invention also relates to a switchable luminescent printing ink, comprising a capsule-luminescent pigment as described herein, and to a value document, preferably a banknote, comprising a print having a first switchable luminescent printing ink as described herein.