1725 results about "Photothermal conversion" patented technology

Provided is a laminated body (1) comprising a substrate (2) to be ground and a support (5), where the substrate (2) is ground to a very small thickness and can then be separated from the support (5) without damaging the substrate (2). One embodiment of the present invention is a laminated body (1) comprising a substrate (2) to be ground, a joining layer (3) in contact with the substrate (2) to be ground, a photothermal conversion layer (4) comprising a light absorbing agent and a heat decomposable resin, and a light transmitting support (5). After grinding the substrate surface which is opposite that in contact with the joining layer (3), the laminated body (1) is irradiated through the light transmitting support (5) and the photothermal conversion layer (4) decomposes to separate the substrate (2) and the light transmitting support (5).

A transfer substrate includes a support base which transmits laser light with a predetermined wavelength, a photothermal conversion layer provided on the support base, and a transfer layer provided on the photothermal conversion layer, the transfer layer including at least a luminescent layer. The photothermal conversion layer is composed of a first material and a second material having different absorptances with respect to the laser light.

A donor sheet for transferring an image pattern to an image receiving element by a thermal imaging process using laser beam, comprising a base having formed in order on the base a light-to-heat conversion layer, and a transfer layer containing an image component which is melted by heating due to an action of the light-to-heat conversion layer and transferred to the image receiving element in a patterned form, in which the image component of the transfer layer contains an ink-repellent or solvent-repellent compound in an optimized amount. Using the donor sheet, it becomes possible to produce an separation member such as partition pattern and black matrix of a color filter by a shortened manufacturing step with ease and accuracy at high contrast, and can impart excellent ink repellency to the separation member.

The invention discloses a solar water evaporation purification and decomposition device which comprises a water supply line, a float and heat insulation layer, an evaporation layer and a photothermalconversion and solute barrier layer which are connected in sequence from bottom to top. The water supply line enables water to pass through the float and heat insulation layer, and the water is pumpedinto the evaporation layer by virtue of a capillary action; solar energy absorbed by the photothermal conversion and solute barrier layer is converted into heat, and water is heated to be vaporized into water vapor from the evaporation layer; due to pore channel volatilization of the photothermal conversion and solute barrier layer, partial water vapor is decomposed to produce hydrogen and oxygen; since the photothermal conversion and solute barrier layer contains a hydrophobic part and is not infiltrated by water, the solar energy can directly heat a heat-absorbing material only, but not heat water, so that high photothermal conversion efficiency is realized; and meanwhile, the solute in the water is prevented from being separated out on the membrane, and sea water desalination, sewage purification and water decomposition can be realized. Due to the design of a hydrophilic / hydrophobic double-layer evaporation structure, the solar water evaporation purification and decomposition device with high photothermal conversion efficiency and high stability is obtained.

The invention relates to a method for preparing a light-to-heat conversion fabric. The light-to-heat conversion fabric uses the fabric as a matrix to attach photothermal nanomaterials to the surface of the fabric matrix. The method includes the following steps: dispersing the photothermal nanomaterials into a solvent to obtain light thermal nanometer material dispersion liquid; uniformly distributing the photothermal nanometer material dispersion liquid on the fabric substrate; drying to obtain light heat conversion fabric. The invention expands the photothermal nano-material from the solution to the surface of the fabric, has the characteristics of rapid temperature rise and high temperature rise, greatly improves the application range, simple operation, mild conditions, low cost, and the obtained photothermal conversion fabric has high photothermal efficiency , with good mechanical properties, it is expected to have great application value in the fields of winter heating, a new generation of solar thermal insulation clothing, new solar heating equipment and new solar desalination.

A low molecular weight full color organic electroluminescent device and a method to fabricate the low molecular weight full color organic electroluminescent device enable scale-up and mass-production of an organic electroluminescent device of high resolution by providing a donor film of a low molecular weight full color organic electroluminescent device, the donor film including a substrate film; a photothermal conversion layer formed on the upper part of the substrate film; and a transfer layer formed on the upper part of the photothermal conversion layer and formed of a low molecular weight material. A part of the transfer layer that is irradiated and heated by a laser is separated from the photothermal conversion layer according to a change of an adhesion force of the transfer layer with the photothermal conversion layer, while part of the transfer layer which is not irradiated by the laser is fixed to the photothermal conversion layer.

The invention relates to a method for preparing a solar selective heat absorbing paint by using a spinel type pigment as a light absorbent, which belongs to the field of solar heat utilization. The method comprises the steps of uniformly dispersing a nanoscale spinel type pigment as well as resin, a solvent and auxiliaries by using a ball milling method; and then adding a curing agent to obtain the solar selective heat absorbing paint. It is shown in the experiment that the paint is uniformly coated on a metal substrate by using a spraying method; and the solar selective heat absorbing paint obtained after being cured at room temperature shows higher solar energy absorption rate (0.93-0.95) and lower emissivity (0.18-0.30); and the photothermal conversion efficiency of a solar heat collector can be effectively improved; moreover, the coating has the advantages of good mechanical property, stronger weather resistance and service life of more than 45 years.

Provided is a laminated body (1) comprising a substrate (2) to be ground and a support (5), where the substrate (2) is ground to a very small thickness and can then be separated from the support (5) without damaging the substrate (2). One embodiment of the present invention is a laminated body (1) comprising a substrate (2) to be ground, a joining layer (3) in contact with the substrate (2) to be ground, a photothermal conversion layer (4) comprising a light absorbing agent and a heat decomposable resin, and a light transmitting support (5). After grinding the substrate surface which is opposite that in contact with the joining layer (3), the laminated body (1) is irradiated through the light transmitting support (5) and the photothermal conversion layer (4) decomposes to separate the substrate (2) and the light transmitting support (5).

Provided is a layered body including a substrate to be ground and a support, where the substrate may be ground to a very small (thin) thickness and can then be separated from the support without damaging the substrate. One embodiment is a layered body including a substrate to be ground, a joining layer having a curable acrylate polymer and a curable acrylate adhesion modifying agent in contact with the substrate to be ground, a photothermal conversion layer having a light absorbing agent and a heat decomposable resin, and a light transmitting support. After grinding the substrate surface which is opposite that in contact with the joining layer, the layered body is irradiated through the light transmitting layer and the photothermal conversion layer decomposes to separate the substrate and the light transmitting support.

A solar thermoelectric power generation system comprises a solar thermoelectric power generation system body, a concentrated solar device, a metal photothermal conversion device, a water circulating cooling system and a solar heat absorption coating. Sunlight and concentrated sunlight can irradiate on the metal photothermal conversion device which is coated by the solar heat absorption coating, the solar heat absorption coating converts light energy into heat energy, and then the heat energy is transmitted to the metal photothermal conversion device, the metal photothermal conversion device transmits the heat energy to a hot end of a thermoelectric power generation device, a cold end of the thermoelectric power generation device is cooled by the seawater or river water or lake water or pond water or underground water circulating cooling system, and the solar thermoelectric power generation system body which is composed of the hot end of the thermoelectric power generation device and the cold end of the thermoelectric power generation device can convert heat into electrical energy.

There are provided a laminate, a preparatory support, a laminate production method and a device production method which make it possible to successfully produce a thin device on a flexible substrate which is likely to bend or break. A laminate 1A includes: a support 2A; a photothermal conversion layer 3A; a light blocking layer 4A; an adhesive layer 5A; a flexible substrate 6A; and a device element 7A, wherein the support 2A can be detached from the other layers by irradiating the photothermal conversion layer 3A with light, and wherein the adhesive layer 5A is formed such that it covers the side surface of the light blocking layer 4A.

The invention discloses a solar photothermal conversion material and a preparation method thereof, wherein the method comprises the steps of: a light absorbing material, a water-soluble monomer, an initiator and a crosslinking agent are mixed and dispersed in water to obtain a reaction liquid; or the light absorbing material, a water-soluble polymer and the crosslinking agent are mixed and dispersed in the water to obtain a reaction liquid; the reaction liquid is adsorbed by a sponge, and gelatinized to obtain a hydrogel, and after several cycles of freeze-thawing, freeze-drying and dissolvingof the hydrogel in water until the hydrogel is saturated to swell, the solar photothermal conversion material is obtained. The porous property of a sponge material enhances the water absorption of the solar photothermal conversion material, and can solve the salt deposition problem, and the solar photothermal conversion material has self-cleaning property. In the solar photothermal conversion material, the light absorbing material ensures the light absorption of the solar photothermal conversion material, and the hydrogel material can reduce the latent heat required for evaporation of water,so that high photothermal conversion efficiency and high evaporation rate can be ensured.

The invention relates to a molybdenum oxide based nano photothermal conversion material and a preparation method thereof. The photothermal material is a MoO<3-x> nano material, wherein x is not less than 0 and not more than 1. The preparation method of the photothermal material comprises the following steps: adding H2O2 to elementary molybdenum, stirring the materials and then diluting the materials, thus obtaining a molybdenum precursor solution; adding a surfactant to the molybdenum precursor solution, stirring the mixture uniformly and then carrying out hydrothermal reaction and centrifugation, thus obtaining the molybdenum oxide based nano photothermal conversion material. The efficient molybdenum oxide based nano photothermal material is prepared by the simple, environment-friendly and cheap method provided by the invention and shows a huge application value in cancer treatment.

A donor film has a soft polymer film and a transfer layer to be transferred which is formed on the soft polymer film. When fabricating a patterned organic electroluminescent device using the donor film for thin film transfer, the transfer layer is transferred even with a small amount of energy due to good adhesion between the transfer layer of the donor film and an acceptor film, and multiple layers, such as organic small molecular and polymer layers in addition to a metal layer, may be simultaneously transferred, while eliminating a need of a photothermal conversion layer.

An analyzer characterized by comprising a chip and a detector, wherein the chip is an organic polymer member having a fine capillary through which a fluid sample or a fluid sample and a fluid reagent flow and can perform a chemical reaction on the sample in the capillary without using a separate weighing means, and the detector is a photothermal conversion detector for measuring a physical quantity change such as a refractive index change caused by a partial temperature change of the sample and the reagent by applying an excitation light to a substance to be measured produced by the chemical reaction, thereby providing a small analyzer excellent in chip waste-disposal, capable of analyzing inexpensively, simply and in a short time and being suitable for a POC analysis.

The invention relates to a solar selectivity absorbing coating which can prevent diffusion and have stable structure, belonging to the technical field of photothermal conversion utilization of solar energy; the absorbing coating, from top to bottom, sequentially comprises a metal substrate, an absorbing layer and a reflection reduction layer; the metal substrate is deposited by a first heat resistance diffusion layer which comprises TiC, TiN and TiCN; and the absorbing layer is deposited by a second heat resistance diffusion layer comprising TiN and Ti. The selectivity absorbing coating is generated by the spattering of a metal target in the gas. The solar selectivity absorbing coating has the beneficial effects that the thermal diffusion effect between coatings is effectively prevented, the structure is stable, the high-temperature resistance performance is good, the thermal efficiency is improved, the preparation method is simple and the production cost is low.

The invention relates to a polydopamine-coated nanometer composite photothermal reagent and a preparation method thereof and belongs to the technical field of function materials. The method is simple to operate and two coating methods are provided: firstly, inorganic nanometer particles or the surface of an assembly of the inorganic nanometer particles are directly coated with a polydopamine shell layer through the oxidative polymerization character of a dopamine monomer; and secondly, nanometer particles are synthesized and coated by one step by utilizing the reducibility and the oxidative polymerization character of dopamine, so that the trouble of synthesizing the nanometer particles in advance is prevented, operation is more simple, and a synthesis method has better green environmental protection character. Proved by experiments, after the nanometer particles are coated with the polydopamine shell layer, the biocompatibility, the physiological environment stability and the photothermal stability of the nanometer particles are greatly improved; by introducing a hydroxyl functional group and an amino functional group, the condition of further modifying a biological targeting matter or a loaded medicine is supplied for the nanometer particles; and in addition, as the polydopamine has the photothermal character, the photothermal conversion efficiency of a material coated with the polydopamine shell layer is improved.

The invention provides a rare earth upconversion nano crystal / silver difunctional composite nano material and a preparation method thereof as well as application thereof in preparation of medicine for treating tumour. The composite nano material can inhibit the growth of tumour tissue and can be used with anti-tumour medicine, thus improving medicine effect and achieving the aim of treatment; thecomposite nano material is difficult to decompose and has good light stability; damage to human body is less, the composite nano material can be taken as heat sensitizing agent and can absorb infrared light, the near infrared region (800-1200nm) is a transmission window of organism tissue, and damage of near infrared laser to human body is far less than that of laser in other wavebands, thus reducing damage to human body, being capable of being used as photothermal conversion agent and being superior when used for diagnosis and treatment on malignant tumour.

A thermal transfer donor element is provided which comprises a support, a light-to-heat conversion layer, an interlayer, and a thermal transfer layer. When the above donor element is brought into contact with a receptor and imagewise irradiated, an image is obtained which is free from contamination by the light-to-heat conversion layer. The construction and process of this invention is useful in making colored images including applications such as color proofs and color filter elements.

Provided is a laminated body comprising a substrate to be ground and a support, where the substrate may be ground to a very small (thin) thickness and can then be separated from the support without damaging the substrate. One embodiment is a laminated body comprising a substrate to be ground, a curable silicone adhesive layer in contact with the substrate to be ground, a photothermal conversion layer comprising a light absorbing agent and a heat decomposable resin, and a light transmitting support. After grinding the substrate surface which is opposite that in contact with the adhesive layer, the laminated body is irradiated through the light transmitting layer and the photothermal conversion layer decomposes to separate the substrate and the light transmitting support.

The invention provides photothermally-induced shape memory composite. The composite comprises a temperature-sensitive material and a photothermal conversion material distributed in the temperature-sensitive material, wherein the photothermal conversion material accounts for 0.1%-20% of the mass sum of the temperature-sensitive material and the photothermal conversion material. The photothermally-induced shape memory composite is obtained by curing a mixed dispersion liquid formed by the photothermal conversion material and the temperature-sensitive material. The photothermal conversion material in the phoththermally-induced shape memory composite stimulates the temperature-sensitive material by converting light into heat, so that the shape memory function of the composite is realized. The shape memory effect can be realized by exciting ultraviolet rays in a wider temperature range, and the photothermally-induced shape memory composite does not have high temperature dependency and is high in reliability, good in safety, convenient to operate and control, good in practicability and wide in applicability. The invention further provides a preparation method of the photothermally-induced shape memory composite. The preparation process is diversified, simple and suitable for various substrates.

Aspects of the invention can provide a patterning forming method capable of patterning a thin film by a simple and inexpensive device. The thin film can be provided on a base member including a photothermal conversion material that converts optical energy into thermal energy and light is radiated onto the base member to remove the thin film corresponding to a light-radiated region, such that the thin film is patterned.

The invention relates to a folate-targeted reduction sensitive drug-carrying polymer nano-micelle as well as a preparation method and application thereof. The delivery carrier is prepared by taking anamphiphilic triblock copolymer PCL-ss-PEG-ss-PCL as a material, and a chemotherapeutic drug adriamycin amycin and a photosensitizer indocyanine green are entrapped in a hydrophobic core of the micelle. Besides, phospholipid DSPE-PEG-NH2 with an active group is introduced into the preparation process, the DSPE end of the phospholipid has strong hydrophobic property and is inserted into the hydrophobic PCL core of the polymer micelle, the flexible hydrophilic PEG long chain exists on the outer surface of the micelle, FA with a targeting effect is connected to a PEG active distal end of the surface of the polymer micelle, and functions of active tumor targeting and reduction response drug release are integrated. The folate-targeted reduction sensitive drug-carrying polymer nano-micelle disclosed by the invention has the advantages of being small in particle size, high in dispersion property, high in drug loading capacity and encapsulation efficiency and excellent in photothermal conversion effect, can realize reduced trigger drug release, fluorescence imaging of tumor sites, tumor targeting drug delivery and chemotherapy-photothermal combination therapy and improve the tumor inhibition effect, and has wide application prospects in the targeted combination therapy aspect of tumors.

The invention relates to a pH / reduction dual-sensitive multifunctional nano-micelle for tumor chemotherapy and photothermal combined therapy and application of the pH / reduction dual-sensitive multifunctional nano-micelle. The pH / reduction dual-sensitive multifunctional nano-micelle is characterized in that a PCL-acetal-PEG polymer with pH sensitive characteristic, a PCL-ss-PEG-ss-PCL polymer withreduction sensitive characteristic and a phospholipid DSPE-PEG-NH2 with an active group are used as raw materials and are blended to prepare a pH / reduction intelligent responsive polymer nano-micelleas a carrier; a chemotherapeutic drug and a photosensitizer coat a hydrophobic core of the micelle; a casing is made of hydrophilic PEG and has the characteristic of long circulation and space stability; a folic acid targeting group is modified on the surface of the micelle by a covalent bond; the drug loading capacity is 4 to 10 percent, and the mass ratio of the chemotherapeutic drug to the photosensitizer is 0.5 to 2; the particle size is smaller than 200 nm. The pH / reduction dual-sensitive multifunctional nano-micelle disclosed by the invention has the advantages of good dispersity, smallparticle size, better photothermal conversion effect and high drug loading capacity and encapsulation efficiency; the effect of improving tumor suppression by tumor targeted administration, fluorescence imaging of a tumor site, pH / reduction triggered drug release and chemotherapy and photothermal combined therapy can be realized; the pH / reduction dual-sensitive multifunctional nano-micelle has a broad clinical application prospect in combined targeting therapy of tumors.

The invention discloses a solar thermal power generation system by thermoelectric conversion, comprising a sunlight-concentrating and receiving module, a solar tracking module, a photothermal-conversion module for absorbing sunlight then transforming sunlight into thermal energy and a combination of semiconductor thermoelectric module, the combination-type cooling module is under the semiconductor thermoelectric module. In the invention, TE module can directly convert solar thermal and waste heat to electricity without heat transfer medium, heat storage tank, turbine, and mechanical moving part, thus realizing small scale, compact system with high efficiency; Due to the adopting of low concentrating lens with tracking system and compound waste heat supplying module, thus reducing floor area and effectively improving temperature difference and power generating efficiency of the overall system. In comparison with that of traditional solar thermal power generation system, the new system kept the advantages, including: low investment and low maintenance cost. In comparison with that of solar cell power generation system, the system has the advantages: large power in small area and possible in stable output; furthermore a heating source apart from solar energy is introduced to guarantee the stable current supply.

The invention discloses a photothermal therapy probe based on a photothermal nanomaterial. The photothermal therapy probe comprises a cylindrical shell with a closed end, the photothermal nanomaterial arranged in the closed end in the shell, an optical fiber for illuminating the photothermal nanomaterial, and a temperature sensor close to the inner wall of the closed end of the shell. The shell is a hard material and provides the ability of the protection of internal devices and tissue puncture. An optical fiber guides laser into the internal part of a probe. The photothermal nanomaterial converts light energy into high-temperature heat energy, and the temperature sensor monitors and controls the terminal temperature of the probe. According to the photothermal therapy probe, the shell is filled with the photothermal nanomaterial, the light energy is converted into the heat energy, the probe reaches a tissue lesion part through minimal invasion, then through an efficient photothermal conversion mechanism of the photothermal nanomaterial, the killing of tumor and other disease tissue cells is implemented, and the photothermal therapy probe has the advantages of a simple structure, convenient operation, a small wound surface, efficient treatment and high accuracy.

The invention provides a photothermal conversion nanometer material. The chemical formula of the photothermal conversion nanometer material is AR1-x-yF4, wherein Ybx and Ery are doped in the AR1-x-yF4, A is at least one of Li, Na or K, R is at least one of Y, Gd, Lu, or Nd, x is less than or equal to 0.6 and greater than or equal to 0.01, and y is less than or equal to 0.1 and equal to or greater than 0.01; the particle size of the photothermal conversion nanometer material particles is within the wavelength range of 5-40nm. The photothermal conversion nanometer material can emit visible light with the range of 520-660nm under the excitation effect of the near infrared laser with the wavelength range of 750-1100nm, while a temperature rise of about 5-300 DEG C can be achieved, and since the ratio of the emission band with the wavelength of 525nm and emission band with the wavelength of 545nm in the emitted light and the temperature meet a good exponential relationship, the temperature detection function can be realized. The photothermal conversion nanometer material has the significant characteristics that the material can absorb near-infrared laser with the wavelength range of 750-1100nm and the photothermal conversion, upconversion luminescence and temperature detection functions are achieved simultaneously. Another object of the invention is to provide a preparation method and application method of the photothermal conversion nanometer material, and the preparation method is simple, easy to operate, free of pollution and low in cost.

The invention provides a solar photothermal and photoelectric frequency division utilization system, which comprises a condensing unit, a photothermal unit, a photoelectric unit and a heat recovery unit, wherein the condensing unit, the photothermal unit and the photoelectric unit are arranged from top to bottom in turn; the photothermal unit and the photoelectric unit are internally provided with a channel respectively, and are communicated by the channels; semiconductor nano fluid is contained in the channels; the flowing direction of the semiconductor nano fluid is from the photoelectric unit to the photothermal unit to cool the photoelectric unit, and photothermal and photoelectric frequency division is performed on sunlight passing through in the photothermal unit; the photothermal unit and the photoelectric unit are connected with the heat recovery unit through the respective internal channels to form a loop. By applying the solar photothermal and photoelectric frequency division utilization system, the working temperature of photovoltaic cells can be effectively reduced, the photothermal conversion efficiency of sunlight, photoelectric conversion efficiency and energy grade are improved, and the cost is reduced.

The invention relates to a preparation method of biocompatible photo-thermal response self-healing conductive hydrogel, which includes: preparing solution from N,N-dimethyl acrylamide monomer, potassium persulfate serving as initiator and N,N,N',N'-tetramethylethylenediamine serving as accelerator; then soaking graphene hydrogel into the monomer solution for solution displacement and standing; and finally, initiating polymerization reaction at the room temperature, so that the biocompatible photo-thermal response self-healing conductive hydrogel is prepared. The preparation method is simple in process, mild in reaction condition, short in reaction time and suitable for industrial production. The hydrogel uses the graphene as a three-dimensional network framework, the graphene is high in reduction degree, chemical stability, electric conductivity and mechanical strength and good in photothermal conversion effect, and the hydrogel shows good self-healing performance within the body temperature range and under near-infrared irradiation.