22 results about "Photon upconversion" patented technology

The present invention addresses the problem of providing: a photocurable resin composition that does not require full curing by heat; an adhesive, a sealing material, or a coating agent containing the photocurable resin composition; a cured product thereof; a semiconductor device or an electronic component containing the cured product; and a curing method, an adhesion method, a sealing method, and a coating method using a photocurable resin composition.　Provided are: a photocurable resin composition containing (A) a polymerizable compound, (B) a photopolymerization initiator, and (C) a photon upconversion material; an adhesive, a sealing material, or a coating agent containing the photocurable resin composition; a cured product thereof; a semiconductor device or an electronic component containing the cured product; and a curing method, an adhesion method, a sealing method, and a coating method using a photocurable resin composition.

The invention discloses a multiphoton up-conversion super-resolution microscopic imaging method based on microsphere super-lens enhancement, which utilizes the super-resolution advantage of a microsphere super-lens and the nonlinear response advantage of a lanthanide doped rare earth up-conversion nano material to reduce the saturation excitation power of the rare earth nano material. And super-resolution imaging under the condition of a low-magnification and low-numerical-aperture objective lens is realized. An example verifies that under the condition that system complexity is not increased, excitation powers of 455 nm and 808 nm radiation fluorescence of an up-conversion nano material are respectively reduced by 15.40 times and 23.44 times, fluorescence imaging resolutions of 455 nm and 808 nm can be respectively improved by 3.14 times and 3.6 times under a 10x 0.25 NA objective lens, and corresponding transverse resolution limits can respectively reach 358.20 nm and 480.02 nm, so that the fluorescence imaging resolution of the up-conversion nano material can be improved by 3.14 times and 3.6 times under a 10x 0.25 NA objective lens. The method has the advantages of simple imaging system, low cost and good imaging effect, and is of great significance to biological application research.

The present invention relates to a security seal with closure means (4, 5 or 4', 5') that comprises in at least a first portion (1a) of said body a material that allows identification and / or tracing and in at least a second portion (1b) of said body at least a second type of tracing material. The second portion (1b) is located close to the first portion (1a) when the security seal is in a closed position, the first and second tracing material being a mixture of one or more chemical components in different amounts and proportions that are, in and of themselves, detectable and identifiable by using instruments for detecting emitted fluorescent or non-fluorescent radiation with an electromagnetic spectrum range between 100 and 2000 nanometres of electromagnetic excitation range and / or by using laser light to measure the decay time of the luminosity of photoluminescent materials, using techniques such as photon upconversion.

Systems and methods for three-dimensional fabrication of nanoscale products via triplet-triplet annihilation photon upconversion are provided. Generally, an optical system can be utilized to impinge patterned light onto a resin. The resin can comprise components triplet-triplet annihilation photon upconversion and components for polymerization. The patterned light provided by the optical system can induce triplet-triplet annihilation photon upconversion to stimulate polymerization and thus curing the resin.

Provided are a photon up-conversion film, a photon up-conversion body, a laminate, and an energy conversion device, which are capable of high-efficiency up-conversion, and methods of producing the same. The photon up-conversion film according to an embodiment of the present invention includes a color-forming portion containing at least: a sensitizing component capable of absorbing light in a first wavelength region λ1; and a light-emitting component capable of radiating light in a second wavelength region λ2 including wavelengths shorter than those of the first wavelength region λ1. A relaxation time of the photon up-conversion film measured by a spin-echo method through use of time-domain nuclear magnetic resonance (pulse NMR) at 298 K is less than 210 ms.

Provided are a photonic up-conversion film, a photonic up-conversion body, a laminate, and an energy conversion device capable of high-efficiency up-conversion, and a method for manufacturing the same. The photonic up-conversion film of an embodiment of the present application has a color development portion that contains at least a sensitizing component capable of absorbing light in a first wavelength range λ1 and a luminescent component capable of emitting light in a second wavelength range λ2 shorter in wavelength than the first wavelength range λ1. With respect to the photonic up-conversion film, the relaxation time measured by the spin echo method using the time-domain nuclear magnetic resonance method (pulse NMR) at 298 K is less than 210 ms.

Provided are a photon up-conversion film, a photon up-conversion body, a laminate, and an energy conversion device which are capable of highly efficient up-conversion, and methods for producing the same. A photon up-conversion film according to an embodiment of the present invention is provided with a color-developing section that contains at least a sensitizing component capable of absorbing light in a first wavelength range [lambda] 1 and a light-emitting component capable of emitting light in a second wavelength range [lambda] 2 having a shorter wavelength than the first wavelength range [lambda] 1. The relaxation time of the photon up-conversion film as measured by a spin-echo method using a time-domain nuclear magnetic resonance method (pulsed NMR) at 298 K is less than 210 ms.

An upconversion film or device includes a dielectric layer, a gap electrode layer overlying the dielectric layer, and an upconversion material configured to upconvert infrared light to visible light. The gap electrode layer includes an array of discrete apertures between an array of discrete electrodes and a continuous electrode. Each discrete aperture is defined by a capacitive gap at least partially filled by the upconversion material, An example upconversion film includes capacitive gaps that are each less than nanometers. An example upconversion device includes an optically transparent electrode layer underlying the dielectric layer. An example infrared camera includes an imaging layer that includes an array of sensing elements, in which each discrete aperture is aligned with a sensing element. An example method of manufacturing an upconversion film includes forming a passivation layer on the array of discrete electrodes using atomic layer deposition to form the capacitive gap.

To provide a photon upconversion material that is practical and can be applied to solid films. [Solution] The photon upconversion material of the present invention is an acceptor compound having a π-conjugated condensed polycyclic structure containing at least one aromatic ring unit (where, one of the aromatic ring units is bonded to a group having a chain length of 4 atoms or more, such as sp 3 The compound comprises a carbon atom, a silicon atom bonded to a group having a chain length of 4 or more atoms, a nitrogen atom bonded to a group having a chain length of 4 or more atoms, or a boron atom bonded to a group having a chain length of 4 or more atoms, and a donor compound that imparts triplet energy to the acceptor compound.

To provide a photon upconversion material that is applicable to flow systems and has broad applicability.SOLUTION: A photon upconversion porous body of the present invention comprises a framework including a donor and an acceptor, and has through-holes, where the hole diameter is, for example, 0.1-100 μm.SELECTED DRAWING: None

The present invention generally relates to photon upconversion nanocapsules for 3D printing and other applications. For example, one aspect is generally related to nanocapsules that contain an upconversion material. Light, such as laser light, focused on a region of liquid containing nanocapsules may be upconverted by the upconversion material to produce wavelengths sufficient to cause polymerization of a polymerizable entity to occur. However, in contrast, although other regions may receive some light, that light may not be of sufficient focus or intensity to be upconverted, and thus, the polymerizable entity in those regions would generally not polymerize. In such a fashion, the extent of polymerization can be controlled, for example, by controlling where light is applied to the liquid. The light could be focused at arbitrary regions within the liquid, thus allowing true 3D-printing to occur. In addition, some embodiments of the invention generally relate to systems and methods for making or using such nanocapsules containing upconversion materials, products produced using such materials, kits including such materials, or the like.

To provide a photon up-conversion material suppressing deterioration of performance with time.SOLUTION: A photon up-conversion material includes: a sensitization component capable of absorbing light in a first wavelength region λ1; a light-emitting component capable of emitting light in a second wavelength region λ2 having a wavelength shorter than that of the first wavelength region λ1; and a dispersant. The dispersant includes a compound selected from among a phosphorus-based compound, a sulfur-based compound, a selenium-based compound, an arsenic-based compound and a tellurium-based compound. The photon up-conversion material includes, based on 100 pts.wt. of the compound, 1.0×10-5 to 10.0 pts.wt. of the sensitization component and 1.0×10-4 to 50.0 pts.wt. of the light-emitting component.SELECTED DRAWING: Figure 1

The present invention addresses the problem of providing: a curing method for a photocurable resin composition under atmospheric conditions by using a photon up-conversion mechanism, which achieves both surface curability and curability in deep portions of the photocurable resin composition; a bonding, sealing, and coating method using the curing method; and a cured product thereof.　Provided are: a curing method for a photocurable resin composition, the method including a step for simultaneously or sequentially irradiating a photocurable resin composition that contains a polymerizable compound with light having a wavelength of 500 nm or less and light having a wavelength of more than 500 nm, and polymerizing the polymerizable compound using at least a photon up-conversion mechanism under atmospheric conditions; a bonding, sealing, and coating method using the curing method; and a cured product thereof.

Provided is a photon upconversion material in which temporal performance degradation is suppressed. A photon upconversion material according to an embodiment of the present invention includes a sensitizing component capable of absorbing light in a first wavelength region λ1, a luminescent component capable of emitting light in a second wavelength region λ2 that is shorter than the first wavelength region λ1, and a dispersion medium, wherein the dispersion medium contains a compound selected from phosphorus-based compounds, sulfur-based compounds, selenium-based compounds, arsenic-based compounds, or tellurium-based compounds, the photon upconversion material contains, with respect to 100 parts by weight of the compound, 1.0×10-5 to 10.0 parts by weight of the sensitizing component and 1.0×10-4 to 50.0 parts by weight of the luminescent component.

The present invention addresses the problem of providing: a photocurable resin composition that is cured only by light irradiation and does not require full curing by heat; an adhesive, a sealant or a coating agent containing the photocurable resin composition; a cured product thereof; a semiconductor device or an electronic component containing the cured product; and a curing method, a bonding method, a sealing method, and a coating method using the photocurable resin composition.　Provided are: a photocurable resin composition containing (A) a maleimide compound, and (B) a photon upconversion material; an adhesive, a sealant, or a coating agent containing the photocurable resin composition; a cured product thereof; a semiconductor device or an electronic component containing the cured product; and a curing method, a bonding method, a sealing method, and a coating method using the photocurable resin composition.

To provide a photon upconversion film, a photon upconversion body, a laminate, an energy conversion device, and methods for manufacturing the same, which enable highly efficient upconversion. 【Solution means】The photon upconversion film according to an embodiment of the present invention includes a coloring part including at least a sensitizing component capable of absorbing light in a first wavelength region λ1 and a light emitting component capable of emitting light in a second wavelength region λ2 shorter than the first wavelength region λ1. The relaxation time measured by the spin-echo method using time-domain nuclear magnetic resonance (pulse NMR) at 298K of the photon upconversion film is less than 210 ms.

The invention relates to the technical field of organic photoelectric functional materials, in particular to a photon up-conversion material based on a metal-free photosensitizer and a covalent organic framework and a preparation method of the photon up-conversion material. The up-conversion material comprises a cyanine dye photosensitizer and a covalent organic framework, the cyanine dye photosensitizer is assembled on the surface of the covalent organic framework through a molecular anchor in the structural formula of the cyanine dye photosensitizer, and the photon up-conversion material based on the metal-free photosensitizer and the covalent organic framework is formed. According to the invention, through combination of a molecular anchor and a crystal engineering strategy, two core problems of interface transfer and bulk phase diffusion of excitons in solid TTA-UC are cooperatively overcome, and a brand new thought and an effective solution are provided for development of a high-performance solid upconversion material. According to the preparation method, the metal-free photosensitizer and the organic framework material are adopted, precious metal and heavy metal quantum dots are prevented from being used, better biocompatibility and environment friendliness are achieved, meanwhile, the preparation cost is reduced, and large-scale production is facilitated.

By using this photon upconversion porous body which has a skeleton part that includes a donor and an acceptor, and a through hole of, for example, 0.1 µm to 100 µm, UC light irradiation in a flow system becomes possible in various fields including a photochemical reaction in which UC light is used.

This photon upconversion composition including a naphthalene compound obtained by substitution with a substituent including at least one selected from a group consisting of an alkynyl group, a substituted silyl group, a benzene ring, a heterocyclic aromatic ring, a cyano group, and a halogen atom, is capable of efficiently converting excitation light into ultraviolet light at a low excitation intensity.

A photon upconversion composition containing a compound having a coumarin skeleton and not containing a heavy metal exhibits a high photon upconversion efficiency at a low excitation light intensity.

The application discloses an infrared light spot detection device, method and system, and belongs to the fields of optoelectronic detection, organic semiconductor devices and computer vision technology. The detection device is an up-conversion device with an organic thin film cascade structure, and is sequentially provided with an ITO transparent anode, an electron transport / hole blocking layer, an infrared photosensitive layer, an interconnection layer / electron blocking layer, a light-emitting layer, an electron transport layer, an electron injection layer and a cathode from top to bottom, and is packaged with an 8V-9V power supply module and a glass-glass ultraviolet curing adhesive sealing structure. The detection method irradiates the up-conversion device with infrared light spots, forms visible light intensity distribution through photon up-conversion, captures an image through a mobile terminal CMOS sensor, and then completes decoding, correction and quantization through an APP. The light spot area and power density are calculated based on the linear proportional relationship of a preset standard reference. The detection system is composed of the above device and the mobile terminal APP, realizes high-sensitivity detection of near-infrared and short-wave infrared band light spots, and can perform quantitative analysis on infrared light spots.

The invention provides an index modulation linear frequency modulation signal generation device which is characterized by comprising a dual-wavelength laser source (1), a wavelength division demultiplexer (2), a dual-parallel Mach-Zehnder modulator (3), a 90-degree electric coupler (4), an intermediate frequency signal source (5), an optical coupler (6) and a photoelectric detector (7). The invention also provides an index modulation chirp signal generation method. According to the invention, multi-order slope modulation and cyclic shift modulation are combined, and a high-frequency-band ultra-wideband index modulation LFM signal is output through a photon up-conversion technology. The generated signal has good robustness under the condition of strong Doppler frequency shift, and the communication rate can be further expanded at the same time.