207results about How to "Improve light absorption capacity" patented technology

The embodiment of the invention provides a method and a device for sealing with frit and frit. The light absorption of the frit is improved, the reject ratio of an OLED substrate is reduced, and the quality of the OLED substrate is improved. The frit comprises sealing glass and filler, wherein the filler comprises an inorganic quantum dot material. The embodiment of the invention relates to the field of sealing technology.

The invention relates to a special-purpose low temperature solidification silver migration resistance laser etching conductive silver paste for a handset touch screen and a preparation method thereof. The conductive silver paste mainly comprises silver powder content 40-75%, high-molecular carrier content 20-50% and additive content 3-15%. The preparation method of the conductive silver paste comprises steps of high-molecular resin carrier preparation, conductive silver paste preparation and conductive silver paste post-treatment. The conductive silver paste has excellent silver migration resistance capability, the silver migration rate under the wet environment is greatly reduced, the conductive silver paste has excellent laser etching performance, intelligible patterns with line-width / line-space of 30mum / 30mum can be acquired through etching, the silver paste has excellent adhesive force on PET, ITO films, ITO glass and common glass, pencil hardness is above 4H, a lowest block resistance value can reach 20mohm / square@1mil, and the silver paste has excellent compatibility with insulation oil ink and a peelable blue plastic protective layer. The conductive silver paste molded through sintering under the low temperature is advantaged in that production cost is low, energy resources are saved, and the conductive silver paste without halogen is further environmental friendly.

The invention discloses a bismuth tungstate composite photocatalyst modified by a nitrogen-doped carbon quantum dot and a preparation method and application thereof. The composite photocatalyst is characterized in that bismuth tungstate is taken as a carrier, and is modified with the nitrogen-doped carbon quantum dot. The preparation method comprises the following steps: mixing bismuth nitrate, sodium tungstate and water, and stirring the mixture to obtain a bismuth tungstate precursor solution; mixing the bismuth tungstate precursor solution with a nitrogen-doped carbon quantum dot solution, and stirring the mixture to obtain a mixed solution; performing a hydrothermal reaction to obtain the bismuth tungstate composite photocatalyst. The composite photocatalyst has the advantages of environmental friendliness, high photo-induced electron-hole separating efficiency, high light absorbing efficiency, high photocatalysis activity, high photocatalysis stability and high corrosion resistance; the preparation method has the advantages of simple preparation process, low raw material cost, and easiness in controlling operation conditions. The composite photocatalyst is used for catalyzing degradation of antibiotic wastewater, and has the advantages of simple application method, high degrading efficiency and high repeatability, and has a very good practical application prospect.

The invention relates to a special ultralow temperature cured laser etching conductive silver paste for a mobile phone touch screen. The conductive silver paste mainly comprises the following components: 40%-75% of a conductive function phase, 6-15% of macromolecule resin, 15-35% of a solvent and 3-15% of an additive. The preparation of the silver paste comprises the steps of macromolecule regioncarrier preparation, conductive silver paste preparation and conductive silver paste post-processing. The conductive silver paste can be completely cured under the condition of an ultralow temperatureof 80-110 DEG C, the temperature is reduced by 20-50 DEG C compared with a curing condition of 130 DEG C of the existing conductive silver paste, and shrinkage, folding and deformation of a substratemembrane material during high-temperature curing are reduced. The paste has excellent laser etching performance, and a clear pattern with the line width / line spacing being 30 microns / 30 microns can be etched; the paste has good adhesion on PET, an ITO film, a silver nanowire conductive film, TIO glass and ordinary glass, the pencil hardness is above 2H, and the square resistance can reach up to 20m[Omega] / square@1mil. In addition, the conductive silver paste is sintered and molded at an ultralow temperature, low in production cost, energy-saving and free of halogen, thereby being an environment-friendly product.

In a spectroscopy module 1, a light detecting element 5 having a light passing hole 50 is used. Therefore, it is possible to prevent the relative positional relationship between the light passing hole 50 and a light detecting portion 5a of the light detecting element 5 from deviating. Moreover, the light detecting element 5 is electrically connected to a wiring 9 formed on a front plane 2a of a substrate 2 by face-down bonding, and a resin layer 79 is formed as an underfill resin between the substrate 2 and the light detecting element 5. Therefore, it is possible to improve the fixing strength between the substrate 2 and the light detecting element 5. Additionally, before the resin layer 79 is formed, a resin layer 78 is formed along a guide portion 77 that surrounds the passing hole 50. Thus, the resin layer 79 is prevented from penetrating into the light passing hole 50, which makes it possible to make a light be appropriately incident into the substrate 2.

The invention discloses a solar seawater desalination or sewage treatment method based on a carbon nano-tube film. The method comprises the following steps: using a carbon nano-tube vertical array which is directly prepared by adopting a chemical vapor deposition method as a raw material, and carrying out treatment to obtain a carbon nano-tube vertical array film having strong light absorption property and surface hydrophilicity; putting the hydrophilicity carbon nano-tube film on a to-be-treated water surface. Because the carbon nano-tube film can effectively absorb the light and light-thermal conversion can be carried out, so that the water can be quickly evaporated when a water body is heated, and the steam is condensed to obtain purified water. The technology has the characteristics of environmental protection, simple and convenient process, high light-thermal conversion efficiency, high water purification speed, good durability and the like, and has a wide application prospect.

The invention relates to a novel D-A'-PI-A polymer metal complex sensitizer (as shown in a formula I) taking 8-hydroxyquinoline derivative Cu (II) as an auxiliary electron acceptor, a preparation method of the sensitizer and application of the sensitizer to dye-sensitized solar cells. The sensitizer takes derivates of IDT (indacenodithiophene) or CZ (carbazole) as electron donors (D), 8-hydroxyquinoline derivative Cu (II) complexes serve as A' and pi bridges respectively, cyanoacrylate serves as an electron acceptor (A) and an anchor group, and Yamamoto polymerization is performed to obtain sensitizers PIDT-QCu and PCZ-QCu. The D-A'-PI-A sensitizer taking high-electrophilicity 8-hydroxyquinoline derivative Cu (II) complexes as the auxiliary electron acceptor A' is synthesized successfully. According to photovoltaic performance tests, the sensitizer is excellent in photovoltaic performance and thermal stability and has a promising application prospect.

The invention relates to a perovskite solar cell structure which sequentially comprises a cathode transparent conducting substrate, an electron transport layer, a perovskite layer, a hole transport layer and a metal anode. The electron transport layer is a titanium dioxide-coated metal particle core-shell layer. TiO2 coats the Au / Ag core-shell layer to directly serve as the electron transport layer, a special electron transport layer does not need to be manufactured additionally, and a preparation process is simplified. Light absorption by the perovskite layer is promoted by utilizing a plasmon enhancement effect of nano particles, and the light absorption effect of a solar cell is improved. According to the preparation method, the electron transport layer is prepared by adopting a solvent low-temperature process, the use of the steps such as high-temperature sintering in the prior art is avoided, the preparation process is further simplified, and the production cost is reduced. Due to the fact that TiO2 coats the metal particle core-shell layer to serve as the electron transport layer to be directly formed on the cathode transparent conducting substrate in solution rather than be formed through a spin coating process, the structure is more compact, and the electron transport effect is better.

The invention discloses a method for preparing monocrystalline silicon suede, which comprises the following steps of: 1) preparing 0.05 to 0.5 percent rough polishing solution from 45 percent aqueous alkali and deionized water in a thermostat with the temperature of between 75 and 85DEG C; 2) preparing 0.5 to 5 percent analytical pure alkali and 87 to 98.4 percent of deionized water into 45 percent aqueous alkali, and mixing the 45 percent aqueous alkali, 1 to 7 percent analytical pure isopropanol, 0.1 to 1 percent analytical pure sodium silicate and the rest deionized water into alkaline corrosion solution in the thermostat with the temperature of between 75 and 85DEG C; and 3) pre-cleaning a monocrystalline silicon piece for 1 to 6 minutes in the rough polishing solution, taking the monocrystalline silicon piece out, soaking in warm water, reacting for 10 to 30 minutes in the alkaline corrosion solution, taking the monocrystalline silicon piece out, washing with deionized water, anddrying. The prepared monocrystalline silicon suede has small-size and uniform pyramids, the light absorbing capacity of batteries is improved, the suede preparing reaction time is shortened, and the production cost is reduced.

The invention relates to the technical field of optics and micro Nano system, in particular to an ultra-fast detection structure for metal micro Nano superstructure surface plasma ploariton. The structure comprises Si base where a layer of silica is cultured. A lay of graphene film is provided on the layer of the silica and square shape metal Au is placed on the both sides of the graphene film and a layer of TiO is placed on the graphene film between the square shape metal Au. Globular metal Ag is provided on the layer of the TiO. A cover layer of the graphene film is provided on the globular metal Ag. A nanoscale gap is shown among the globular metal Ag. The invention solves the problems of being limited in sensitivity due to lack of photon-generated carriers brought by the photodetector made of the graphene and being low in transmission speed.

The invention discloses a variable-spacing anti-light curtain and a preparation method thereof. The variable-spacing anti-light curtain comprises a base material layer and a prismatic structure layerarranged on the outer surface of the base material layer, and is characterized in that a plurality of prisms which are parallel to one another in the horizontal direction and have triangular sectionsare arranged on the prismatic structure layer; the distances between the prisms are gradually increased from bottom to top; the upper side surfaces of the prisms are light absorption surfaces; and thelower side surfaces of the prisms are reflective surfaces and are coated with a reflective coating respectively. The distance of the prismatic structure layer in the longitudinal direction of the curtain is adjusted, the distance is gradually increased from bottom to top, the prisms below can be effectively prevented from shielding the prisms adjacent to the prisms above, and the reflecting surfaces of the prisms can completely play a role. According to the structural design, raw materials of the prismatic structure layer are saved, the manufacturing cost is reduced, on the premise that the same reflection area is maintained, the light absorption area is increased, the absorption rate of ambient light is additionally increased, interference of the ambient light is reduced, and the contrast ratio is increased.

The invention discloses a porous photo-thermal film with salt precipitation resistance and preparation and application thereof. Seawater-corrosion-resistant metal Ti nets with different pore diametersare used as substrate materials to obtain TiO2 / Ti porous films with different pore diameters through hydrothermal synthesis reaction and control of reaction time; then TiNx with a plasma resonance effect is loaded on the surface of the Ti nets through a desalination reaction, the light absorption rate is increased, then a hydrophobic TiNx / Ti porous photo-thermal film is obtained through hydrophobic modification, and salt is prevented from being separated out in the seawater desalination process. The nitriding measure is adopted for the TiO2 / Ti porous film, although the TiNx / Ti porous film obtained after nitriding has good light absorption performance, the hydrophobicity is poor, the TiNx / Ti porous film is hydrophobically modified, the stability is improved, and salt precipitation is simulated.

The invention provides a preparation method for reduced graphene oxide / polyurethane nanocomposite foam. The preparation method comprises the steps: mixing graphene oxide with an organic solvent to obtain a graphene oxide dispersion liquid; then mixing the graphene oxide dispersion liquid with polyether 330, polyethylene glycol, diisocyanate, triethanolamine, dibutyltin dilaurate, silicone oil and water, and then performing prepolymerization to prepare a prepolymer; enabling the prepolymer to foam to obtain graphene oxide / polyurethane nanocomposite foam; reducing the graphene oxide / polyurethane nanocomposite foam under microwave conditions so as to obtain reduced graphene oxide / polyurethane nanocomposite foam. The preparation method has the advantages that solar energy can be efficiently absorbed and converted into heat energy, uniform dispersion and stable loading of graphene oxide can be realized, and effective supply of underlying water to a surface vaporization area can be realized while heat conduction is reduced.

The invention discloses a 3D branch semiconductor nano heterojunction photoelectrode material and a preparing method thereof. The heterojunction photoelectrode material is compounded by CuO and ZnO, and is in a 3D branch structure. In the method, ZnO branch nanobars are synthesized on the CuO nanobars, a branch nano structure is realized, and a 3D branch semiconductor nano heterojunction photocathode is prepared, which effectively increases absorption for sunlight, thereby accelerating effective separation of an electron hole pair, further reducing composition thereof, promoting charge transmission, optimizing photoelectric conversion efficiency of a traditional single semiconductor electrode, and improving photolysis efficiency of water; in addition, the material has advantages of environment friendliness and low cost, and has good application prospect.

The invention provides a preparation method of a paraffin / Cu-Cu2O / CNTs photothermal conversion phase-change energy storage composite material. According to the method, copper, cuprous oxide and a carbon nanotube are taken as carriers of a phase-change material, and the phase-change material paraffin is coated to form a phase-change microcapsule. By adopting the method provided by the invention, not only is the heat conductivity of the paraffin phase-change energy storage microcapsule improved, but also the light absorption is obviously improved, in addition, the carbon nanotube with high heatconductivity and light absorption is added, so that the heat conductivity and the light absorption of the microcapsule are further improved, in addition, the preparation method is simple, the cost islow, the problem of leakage of the paraffin in the phase change is effectively solved, and the energy absorption and release speeds of the paraffin are effectively improved in the application of solarenergy storage.

The invention discloses a process for preparing a high-light-absorption-rate black ceramic film layer through micro-arc oxidation of the surface of a magnesium alloy. In an electrolyte solution with silicate or phosphate as a main salt, the magnesium alloy is subjected to micro-arc oxidation treatment by an alternating-current bipolar pulse power source. The electrolyte solution for preparing the high-light-absorption-rate black ceramic film layer through micro-arc oxidation of the surface of the magnesium alloy is simple in composition and easy to operate, and has less pollution to the environment; the prepared black ceramic film layer not only has the performance of good corrosion resistance and high light absorption rate, but also has good apparent decoration, and can satisfy practical application requirements.

The invention relates to the technical field of preparation of a surface micro-nano functional structure, in particular to a method for preparing a TiO2 multi-scale micro-nano composite structure on atitanium substrate. Firstly, a ultrafast laser is used for etching the surface of a pure Ti sheet in deionized water or absolute ethanol to prepare a first-level micro-structure, and ultrasonic cleaning is performed; then the surface of the laser-etched Ti sheet is subjected to gold film plating by magnetron sputtering; and finally, the Ti sheet after gold film plating is placed in a muffle furnace for heat treatment, a second-level nanostructure is prepared on the surface of the micro-structure to obtain the crystal type TiO2 multi-scale composite micro-nano structure.

The invention discloses a manufacturing method of a three-dimensional array grid-last type Si-NWFET (Silicon-Nanowire Field Effect Transistor) based on an SOI (Silicon On Insulator). The manufacturing method comprises the following steps of: alternatively growing silicon layers and germanium-silicon layers on the SOI, forming a fin-shaped active region, forming silicon nanowires in the fin-shaped active region, depositing amorphous carbon in a groove as a virtual isolating layer, then carrying out a grid-last process, and finally and simultaneously carrying out deposition on a groove isolating medium and an interlayer isolating medium. The manufacturing method disclosed by the invention has the advantages that due to existence of an oxygen embedding layer in the SOI, the isolating effect between a grid and an SOI substrate is effectively improved, and the adoption of the grid-last process is beneficial to the control of the profile of the grid and the electrical property of a device; the utilization of the amorphous carbon as the virtual isolating layer is beneficial to the control of the profiles of the grid and the grid groove; and in addition, the silicon-nanowire field effect transistor (Si-NWFET) structure is designed by adopting a three-dimensional array silicon-nanowire structure, so that the number of the nanowires is increased, and the current driving capability of the device is improved.

The invention relates to applications of a series of curcumin derivatives in the field of visible light-curing, wherein the curcumin derivatives are produced from a curcumin structural framework as abasis with modification of aromatic groups connected to two ends of acetylacetone. The curcumin derivatives have strong absorption in blue and green light zones and can serve as a photosensitizer which has effective electron transfer photosensitization effect on iodonium salt. A photo-initiation system composed of the curcumin derivatives and the iodonium salt photo-initiator can effectively induce photo-polymerization of cations and free radicals under a long-wavelength LED light source. Besides, the curcumin derivatives have excellent photo-beaching property and can be applied to the field of deep free radical photo-curing.

The invention discloses thermochromic glass. The thermochromic glass comprises anti-scratching film layers, protective glass layers, a thermochromic layer, arc-shaped rims, filling grooves, adhesion layers and shading gratings, wherein the thermochromic layer is designed in a center layer of the thermochromic glass, the protective glass layers are adhered to the upper and lower surfaces of the thermochromic layer, the anti-scratching film layers are adhered to the outer end surfaces of the protective glass layers, and the arc-shaped rims are designed at the outer ends of the left and right sides of the thermochromic glass and are filled with the adhesion layers. The thermochromic layer of the thermochromic glass is prepared by the steps of adding a small amount of silver sulfide into sodium aluminum borate glass as a photosensitizer, adding a trace amount of copper and cadmium ions as a sensitizer, preparing glass through fusion, carrying out thermal treatment at a proper amount to accumulate silver sulfide into particles; and the thermochromic layer is capable of effectively absorbing thermal radiation or long wave light, and light transmitting the thermochromic layer under burning sun becomes soft, shady and cool, so that the light blocking and absorbing capacities of glass are enhanced, and the hardness and the strength are enhanced.

The invention discloses an inorganic fusion cake for tempered glass inkjet printing ink. The inorganic fusion cake contains the following components in percentage by weight (100% in total): 25%-45% of SiO2, 15%-30% of ZnO, 10%-30% of Bi2O3, 5%-20% of B2O3, 1%-10% of K2O, 1%-10% of Na2O, 1%-10% of TiO2, 1%-10% of Li2O and 0.1%-10% of V2O5. The automotive tempered glass inkjet printing ink prepared from the inorganic fusion cake has high acid resistance and sun-shading capacity and can meet relevant national requirements on the acid resistance and sun-shading capacity of an automotive glass coating layer, the melting point of the inorganic fusion cake can be maintained in a tempered sintering temperature of 650-750 DEG C, and the tempered sintering step in the later period of the automotive tempered glass inkjet printing ink can be smoothly carried out. The invention further provides the automotive tempered glass inkjet printing ink prepared from the inorganic fusion cake, which can meet relevant national requirements on the acid resistance and sun-shading capacity of the automotive glass coating layer.

Solar energy has been used for generating electricity by using silicon based solar cells for years by mounting them on the outside surfaces of buildings. These cells have also been used for outdoor recreation, by mounting said silicon solar panels adjacent to a tent. To store the electrical energy produced by the silicon based cells, large, cumbersome battery systems were used. To provide needed working light inside of these solar powered building enclosures, the occupant needed separate light fixtures. This invention combines new light weight structurally flexible organic panels, said panels having three layers, said layers comprising an exterior solar photovoltaic layer, a middle layer of thin batteries and an interior layer of thin organic structurally flexible light emitting diode (“OLED”) film, said OLED's comprising the interior wall of said enclosure system. There is a microprocessor based circuit monitoring and management of the electrical energy produced, stored and used.

The invention discloses a surface plasmon enhanced InGaN / GaN multi-quantum well photoelectrode. A substrate is etached to form a nanorod structure penetrating through a p-GaN layer and going deep to amulti-quantum well active layer, and plasmon metal is filled in the position of the multi-quantum well active layer between nanorods. The invention also discloses an application of the electrode as aworking electrode of a solar photoelectrochemical cell, the produced solar photoelectrochemical cell and a production method of the solar photoelectrochemical cell. A top-down etching technology of aself-assembled Ni mask is adopted to regulate a distance between the plasma metal and the multi-quantum well in order to generate near field coupling, and the efficiency of generation and transportation of electron hole pairs on the surface of the multi-quantum well active region is effectively improved under the combined action of an electromagnetic field generated by the surface plasmon effectand a built-in electric field formed by the high doping concentration of the p-n region. The method is suitable for InGaN type photoelectrode materials with adjustable band gaps and matched with solarspectra.

The invention relates to a water-electrolytic hydrogen making integrated device for a perovskite solar cell and a manufacturing method for the integrated device. According to the integrated device and the manufacturing method, the perovskite solar photovoltaic cell is originally connected in series with a photochemical cell, and the perovskite solar cell is connected in parallel with the photochemical cell by utilizing the advantage of high output voltage of the low-band-series perovskite solar cell, so that water-splitting hydrogen making is performed without an external bias power supply, and direct energy conversion from solar energy to hydrogen energy is realized; during use, a low-band-series perovskite material can absorb short-wave sunlight and a wide-band-series photochemical cell material can absorb long-waveband sunlight, so that the utilization rate of the sunlight is effectively increased; and when the perovskite solar photovoltaic cell is manufactured, a TiO2-coated Au / Ag core-shell layer is directly used as an electron transmission layer without the need for additionally making a special electron transmission layer, so that a manufacturing process is simplified, the production cost is reduced, the light absorption of a perovskite layer is facilitated, and the light absorption effect of the solar cell is improved.

The invention provides a seawater evaporator for a light collecting solar seawater desalination device. The seawater evaporator comprises a transparent tube, a spill net, ceramic grains, fins and partition baffles; openings are respectively formed in the upper end and the lower end of the transparent tube; grooves are distributed in the inner surface of the transparent tube; the external diameterof each partition baffle is identical to the internal diameter of the transparent tube; a through hole is formed in the center of the partition baffle; a deflector hole is formed in the edge of the partition baffle; the spill net is mounted at the opening at the upper end of the transparent tube; the partition baffle is arranged in the inner chamber of the transparent tube; two adjacent layers ofpartition baffles, the upper layer of partition baffle and the spill net form a chamber; the volume of the chamber is decreased progressively in sequence from the top down; the fin is arranged on theupper end surface of each layer of partition baffle; and the ceramic grain is arranged on the upper end surface of each layer of partition baffle and put between the fins. The seawater evaporator achieves the seawater functionalization, also enhances the seawater light absorption function and the scale removal and inhibition function, can also be applied to the solar seawater desalination device,and improves the efficiency of using heat energy by the solar seawater desalination device.

The invention discloses a BiVO4 / N-doped CQD (carbon quantum dot) / Cu2O double Z type photocatalyst as well as a preparation method and an application thereof. The double Z type photocatalyst takes BiVO4 as a carrier which is modified with N-doped CQDs and Cu2O. The preparation method of the photocatalyst comprises the following steps: preparing a BiVO4 precursor solution, mixing the BiVO4 precursorsolution with an N-doped CQD solution for hydrothermal reaction, mixing the obtained product with Cu2(CH3COO)4(H2O)2, NaOH, glucose and water, and performing stirring to prepare the double Z-type photocatalyst. The double Z type photocatalyst has the advantages of high light absorption efficiency, high photoinduced electron-hole separation efficiency, high redox capacity, high photocatalytic activity and the like; the preparation method of the photocatalyst has the advantages of simple process, easily controllable conditions, simple and easily available raw materials, lower cost and the like.The double Z type photocatalyst can be used for degrading antibiotic wastewater, has the advantages of simple application method, high degradation efficiency and good reusability, and has good practical application prospect.

The invention discloses a porous carbon loaded titanium dioxide composite manufactured by utilizing ionic liquid / polyaniline and a method and an application thereof. The method comprises the following steps: preparing titanium dioxide collosol by using a sol-gel method, adding ionic liquid making up 1.0 wt%-8.0 wt%, and aniline making up 0.1 wt%-10.0 wt% of the collosol to the collosol, mixing uniformly, and adding oxidant to trigger the polymerization of aniline; still standing and ageing the collosol for 3-5 days, placing the collosol to a drying oven to dry at the temperature of 60-120 DEG C; calcining the obtained compound after milling in nitrogen atmosphere at the temperature of 450-850 DEG C for 30 min-2 h to allow polyaniline to be carbonized, so as to obtain the porous carbon loaded titanium dioxide composite. With the assist of ionic liquid, titanium dioxide and polyaniline are synthesized synchronously, and form a mutually cross-linked and penetrated special structure; the calcination in nitrogen atmosphere allows the polyaniline to be carbonized and titanium dioxide to sediment on a polymer residual carbon frame, and simultaneously realizes the nonmetal adulteration for titanium dioxide. The composite material manufactured by the method has stronger light absorption ability both in ultraviolet and visible light areas, and excellent photocatalysis property and well adsorptive property both in ultraviolet and visible light.

The invention discloses a novel UV-LED ultraviolet crosslinked polyethylene cable material and a preparation method thereof and relates to the technical field of chemical materials. Crosslinked polyethylene for ultraviolet radiation comprises, by weight, 100 parts of polyethylene, 0.1-0.3 part of free radical photoinitiator, 0.1-3.0 parts of polyfunctional group crosslinking agent, 0.1-3.0 parts of initiation adjuvant and 0.1-2.0 parts of composite antioxidant. Crosslinked polyethylene is quite suitable for ultraviolet radiation and forming ultraviolet crosslinked polyethylene, crosslinking degree of crosslinked polyethylene is increased, crosslinking time is shortened, and production efficiency is improved.

The invention discloses a polymer-coated gold nanoparticle chain compound, a preparation method and applications thereof, and belongs to the technology field of functional materials. Gold chain assemblies with various lengths are obtained through controlling the growth time of self-assembly gold chains or the quantity of electrolyte which triggers the chains to grow in the preparation method, and then the gold chain assemblies are coated with a polymer layer which is used for stabilizing the gold chain assemblies to improve the glue stability and laser irradiation stability of the gold chain assemblies. The compound has an excellent photo-thermal conversion property, and after being irradiated by a laser with a density of 3.5 W / cm2 and a wavelength of 808 nm for 5 minutes, the temperatures of nano compounds with average chain lengths of 2, 4, 6, 10 and 12 respectively raise by 48.4, 49.2, 50.3, 52.8 and 54.4 DEG C in an open system at the room temperature of 20 DEG C. The nano compound material is an excellent photo-thermal therapeutic agent.

The invention relates to a nano gold array surface-enhanced Raman chip, a preparation method thereof and application of the Raman chip and belongs to the field of rapid detection of pesticide residues. According to the preparation method of the chip, a nano gold array is formed by means of the assembling of the interface of nano gold; the array is transferred to the surface of a flexible filteringmembrane, the flexible filtering membrane with the array is dried and cut into a structure of a suitable size, so that the surface-enhanced Raman chip can be obtained; a solvent is added to the surface of a fruit or vegetable to be tested, so that pesticide residues are extracted into the solvent; and the chip is attached to the surface of the fruit or vegetable and is made to wipe the solvent, so that pesticide residue molecules are transferred to the surface of the chip through coordination, and then a Raman spectrometer is used to quantitatively measure the pesticide residue molecules on the chip. The chip of the invention has high surface strengthening capacity; the surface extraction method and coordination transfer method are adopted, and therefore, the introduction of the interference of the complicated matrixes of the fruit or vegetable to be tested can be effectively avoided, operation is simple and convenient, and the surface extraction method and coordination transfer method can be conveniently used for transferring the pesticide residues on the surface of the fruit or vegetable; and the chip and the portable Raman spectrometer can be used jointly to achieve the quantitative detection of the pesticide residues on the fruit or vegetable.