234results about How to "Improve luminous performance" patented technology

The invention relates to a method for improving luminous intensity of a plant by introducing an exogenous caffeic acid synthesis pathway. A TAL gene and a P450 gene are introduced into a plant body to obtain a remarkable effect of increasing the expression quantity of caffeic acid. Due to the fact that introduction of the TAL gene and the P450 gene promotes deamination of the L-DOPA, the accumulation amount of the L-DOPA is increased, and then the expression amount of caffeic acid in the plant is effectively increased. Based on the pathway, the synthesis of fluorescein in the plant is increased, so that the luminous intensity of the plant is enhanced.

The invention relates to the technical field of concrete, in particular to luminous pervious concrete and a preparation method thereof. The luminous permeable concrete is prepared from the following raw materials in parts by mass: 280-300 parts of cement, 870-900 parts of interval grading coarse aggregate, 70-80 parts of modified luminous powder, 30-40 parts of fly ash, 4-6 parts of a water reducing agent, 20-30 parts of a water repellent agent, 30-40 parts of epoxy resin, 3-5 parts of a silane coupling agent and 90-100 parts of water, and the interval grading coarse aggregate is prepared by mixing coarse aggregate with a small particle size of 4.95-9mm and coarse aggregate with a large particle size of 12.5-10mm according to a mass ratio of 1: 2; the surface of the modified luminescent powder is coated with silicon dioxide sol, and sodium borate is added for heat-resistant treatment. The light-emitting water-permeable concrete has compressive strength and water permeability, the light-emitting property is stable, and the hydrophobic and oleophobic corrosion resistance in the concrete is good.

The invention relates to the technical field of display, and particularly provides a display panel, a display device and a preparation method of the display panel, and the display panel comprises a substrate and an isolation structure; the isolation structure is located on one side of the substrate and comprises a supporting part and a crown part, the crown part is located on the side, back to the substrate, of the supporting part, the side, back to the crown part, of the supporting part is a first surface, the side, back to the supporting part, of the crown part is a second surface, and an isolation opening is formed in the isolation structure; the end, close to the isolation opening, of the crown part inclines towards the direction close to the substrate, the isolation opening comprises a first opening, a second opening and a third opening, and the distance between the orthographic projection of the end, close to the first opening, of the first surface on the substrate and the orthographic projection of the end, close to the first opening, of the second surface on the substrate is a first length; the distance between the orthographic projection of one end, close to the second opening, of the first surface on the substrate and the orthographic projection of one end, close to the second opening, of the second surface on the substrate is a second length; the distance between the orthographic projection of one end, close to the third opening, of the first surface on the substrate and the orthographic projection of one end, close to the third opening, of the second surface on the substrate is a third length, the first length is not smaller than the second length, and the second length is not smaller than the third length.

The invention relates to the technical field of photoelectric materials, in particular to a rare earth doped perovskite quantum dot and a preparation method thereof. The preparation method of the rare earth doped perovskite quantum dots comprises the following steps: mixing and dissolving a lead source, a rare earth source and a solvent to obtain a mixed solution; wherein the lead source and the rare earth source do not contain halogen; reacting the mixed solution with excessive halogenated aliphatic amine precursors to obtain a reaction intermediate solution; the reaction intermediate solution reacts with a fatty acid cesium precursor, and the rare earth doped perovskite quantum dots are obtained after cooling. The preparation method of the rare earth doped perovskite quantum dots is good in controllability, low in requirements for reaction conditions and equipment and high in repetition rate, and the prepared rare earth doped perovskite quantum dots are good in luminescence performance and stability.

The present invention relates to a novel compound having excellent carrier transport capability, light emission capability, and thermal stability, and an organic electroluminescent device having improved characteristics such as light emission efficiency, driving voltage, and lifespan by including the compound in one or more organic material layers, and to an organic electroluminescent device.

The invention belongs to the technical field of 3D printing and flexible high-hydrophobicity self-luminous life jackets, and particularly relates to a flexible high-hydrophobicity self-luminous life jacket and a preparation method thereof. A self-luminous waterborne polyurethane emulsion of a hydrophobic modified energy-storage long-afterglow luminescent material is synthesized, the prepared self-luminous waterborne polyurethane emulsion is used for coating and post-processing a thermoplastic polyurethane elastomer (TPU) flexible life jacket part formed by SLS, and a luminous coating permeates into micro-gaps in the surface of the TPU part and is attached to the surface. And a firmly attached self-luminous coating is formed after curing, so that the hydrophobic property of the TPU life jacket product is obviously improved, and the self-luminous function in a dim and dark environment is also realized. The problems that a traditional fluorescent material is low in luminous intensity, incapable of continuously emitting light, poor in water resistance and the like are solved, and excellent high-hydrophobicity self-luminous performance is obtained on the premise that the original SLS forming process characteristics of the TPU life jacket are not changed and the mechanical property of the TPU life jacket is reserved.

The invention provides a red laser based on a perovskite structure and a preparation method thereof, and belongs to the field of semiconductor quantum dot lasers. The red light laser sequentially comprises a reflecting layer, a P-surface electrode, a hole transport layer, a perovskite active layer, an electron transport layer and an N-surface electrode from bottom to top, the reflecting layer is formed by alternately stacking HfO2 layers and SiO2 layers; the hole transport layer is formed by doping a scandium element into nickel oxide; and the perovskite active layer is a CsPbBr12 / PbSe heterojunction layer. According to the laser, the carrier transmission efficiency of the perovskite quantum dots in the active area is improved, and the output power and efficiency of the red laser are improved; an F-P cavity mode is used as a resonant cavity, and the output power of a laser beam is improved by increasing oscillation in a working medium. The red light laser has the advantages of being simple in structure, simple in preparation method, good in heat dissipation, high in luminous efficiency, high in photoluminescence intensity, low in threshold current, high in output power and the like.

The invention provides a europium ion doped titanate compound as well as a preparation method and application thereof, and relates to the technical field of rare earth luminescent materials. The chemical formula of the titanate compound provided by the invention is K2Ti6O13: xEu < 3 + >, the titanate compound is in a monoclinic system. A proper amount of Eu < 3 + > ions are doped in K2Ti6O13, so that the prepared rare earth fluorescent powder has higher color rendering index and quantum yield, and the luminescent property of a white light LED can be greatly improved; as K2Ti6O13 has good electrochemical performance and relatively high conductivity, the rare earth fluorescent powder provided by the invention can also be used in the fields of illumination, display, photocatalysis and energy storage. And on the other hand, the preparation method provided by the invention is simple in process, mild in condition, convenient for large-scale production and wide in development and application space.

The invention discloses a naphthalenone derivative and an electroluminescent device based on the naphthalenone derivative, and belongs to the technical field of organic luminescent materials and semiconductors. The naphthalene benzophenone derivative is used as a bipolar main body material to be applied to a luminescent layer of an OLED (Organic Light Emitting Diode) device, and a relatively wide carrier recombination region can be formed while holes and electrons are effectively balanced, so that the luminous efficiency of the electroluminescent device is greatly improved, the starting voltage and the energy consumption are reduced, and the service life of the electroluminescent device is prolonged.

The neon lamp strip comprises a light-emitting assembly, a first rectangular transparent silica gel sleeve, a rectangular diffusion silica gel sleeve and a second rectangular transparent silica gel sleeve. The light-emitting assembly comprises a first FPC board and a second FPC board. A plurality of first lamp beads arrayed in the length direction of the first FPC board are arranged on the upper surface of the first FPC board, and a plurality of second lamp beads arrayed in the length direction of the second FPC board are arranged on the lower surface of the second FPC board. The first lamp beads and the second lamp beads are distributed in an up-down staggered mode. Four diffusion silica gel sheets which are distributed in a matrix are embedded in the tube wall of the first rectangular transparent silica gel sleeve; wherein two of the diffusion silica gel sheets are obliquely arranged, and the inclined surfaces of the diffusion silica gel sheets face the first lamp bead, and the other two diffusion silica gel sheets are obliquely arranged, and the inclined surfaces of the diffusion silica gel sheets face the second lamp bead. The neon lamp strip can emit light from four sides and can effectively reduce the area of a dark area, so that the neon lamp strip is uniform in brightness from four sides, and the light-emitting effect is effectively improved.

The utility model discloses a rectum indicator capable of emitting light, which belongs to the field of rectum indicators and comprises a tube body, an indicating head for sealing the corresponding end of the tube body is formed at one end of the tube body, the outer surface of the indicating head is in smooth transition with the end of the tube body, and a sealing cover plate is arranged at one end, far away from the indicating head, of the tube body; a built-in battery and an LED lamp strip are arranged in the tube body, and the two ends of the LED lamp strip are connected to the positive electrode and the negative electrode of the built-in battery. The outer side of the sealing cover plate is provided with an LED switch used for controlling the LED lamp strip to be turned on and turned off. The LED lamp strip is arranged in the tube body in the length direction of the tube body, and the tube body where the lamp strip is located is made of semi-transparent materials. The rectum indicator has the advantages that the light-transmitting tube body is arranged, the LED lamp strip is arranged in the light-transmitting tube body in the length direction, the LED lamp strip emits light in the tube body through the built-in battery, and the obtained rectum indicator is simple in structure, convenient to operate and good in indication effect.

The invention discloses a boron-containing condensed ring carbon free radical compound, a preparation method thereof and application of the boron-containing condensed ring carbon free radical compound in preparation of organic electronic devices, especially in organic light-emitting diodes. The invention also relates to an organic electronic device, in particular an organic light-emitting diode, containing the compound containing the boron-containing condensed ring carbon free radicals according to the invention, and application of the organic electronic device and the organic light-emitting diode in display and illumination technologies. By optimizing the structure of the device and changing the concentration of the boron-containing condensed ring carbon free radical compound in the matrix, the optimal device performance can be achieved, the OLED device with high efficiency, high brightness and high stability can be conveniently realized, and a better material option is provided for full-color display and illumination application.

The invention discloses a garnet-structured near-infrared luminescent scintillator, and the preparation method of the scintillator adopts an improved high-temperature solid phase method, and successfully prepares a Cr < 3 + > and Sb < 3 + > doped scandium gallium garnet scintillator through the process steps of batching, grinding, pre-sintering, high-temperature sintering, re-sintering and the like. Specifically, an oxide precursor is accurately mixed according to a stoichiometric ratio, and is sintered under a high-temperature condition (the sintering temperature is 1400-1600 DEG C). In the process, the crystal structure of the material is gradually formed, and meanwhile, doping ions are promoted to be uniformly doped into crystal lattices of the scandium gallium garnet by controlling the sintering time and temperature. In the crystal growth process, the local electronic environment in crystal lattices is optimized through selection and ion doping of A-site ions, and efficient transfer of excited state energy from a matrix to a light-emitting center is promoted. Under the processes of pre-sintering, high-temperature sintering, re-sintering and the like, doped ions in the crystal are distributed more uniformly, the formation of a non-radiative recombination center is reduced, and the luminous efficiency and the stability of the scintillator are improved.

The invention discloses a thin film and a preparation method thereof, a photoelectric device and a display device. The preparation method of the thin film comprises the steps that a first film layer is provided, and the first film layer comprises oxide particles; performing atmosphere treatment on the first film layer to obtain a thin film; wherein gas used in the atmosphere treatment comprises hydrogen sulfide gas, the volume fraction of the hydrogen sulfide gas is smaller than or equal to 10%, and through the atmosphere treatment of the low-concentration hydrogen sulfide gas, defects in the oxide particles in the first film layer can be passivated, and the vulcanization degree can be accurately regulated and controlled; therefore, the material stability and the performance stability of the thin film can be improved, and meanwhile, the thin film can have relatively good carrier mobility.

The invention discloses a semi-polar gallium nitride-based LED based on an in-situ SiNx insertion layer. According to the structure of the semi-polar gallium nitride-based LED, an AlN buffer layer, a u-GaN layer, the SiNx insertion layer, a u-GaN layer, an n-GaN layer, a multi-layer quantum well structure, a p-GaN layer and a p +-GaN layer are sequentially deposited on a sapphire substrate from bottom to top. According to the method, the silicon nitride (SiNx) intermediate layer is inserted through in-situ growth, and the growth mode of converting 3D into 2D is combined, so that the crystal quality of the semipolar (11-22) GaN template is improved, and the pressure stress on the sapphire substrate of the semipolar (11-22) GaN template can be effectively released; the method has good expansibility for large-area growth of the semi-polar GaN-based LED, and a possible solution is provided for large-scale manufacturing of the long-wavelength LED.

The invention discloses a long-life room-temperature phosphorescent material based on polyphosphazene and application thereof. The phosphorescent material is obtained by functionalizing tripolyphosphazene and doping the functionalized phosphor with a polyvinyl alcohol matrix. The functionalized phosphor obtained by functionalization of the tripolyphosphazene comprises THMD, THDD, THMOD or THDOD. The invention also discloses a phosphorescent film prepared from the phosphorescent material. The phosphorescent film shows excellent luminescence performance, high transparency and good processing performance. The film is applied to a flexible electronic device and a fingerprint recording technology, the doped film has extremely high mechanical flexibility and transparency, large-area preparation can be realized without generating cracks, and the application field of an organic long-life room-temperature phosphorescent material is expanded.

The invention provides a sky-green light source LED packaging device, and belongs to the technical field of luminescent materials. The azure light source LED packaging device comprises a light-emitting substrate, wherein the light-emitting substrate comprises fluorescent powder; the fluorescent powder comprises blue-green fluorescent powder and green fluorescent powder; the light-emitting peak wavelength of the blue-green fluorescent powder is 490-500 nm, the molecular formula of the blue-green fluorescent powder is (Ba1-x-ySrxEuy) Si2N2O2, and x is greater than or equal to 0.001 and less than or equal to 0.3; 0.001 < = y < = 0.1; the blue-green fluorescent powder is of an orthogonal structure and is crystallized in a space group Pcca. According to the invention, on the basis of realizing azure luminescence, the luminescence performance of the azure luminescence is improved, especially the luminescence intensity of the azure luminescence is improved, and the anti-aging performance of the azure light source LED packaging device is also improved.

The present invention relates to the technical field of latent fingerprint detection, and specifically to a near-infrared aggregation-induced luminescence material and a preparation method and application thereof. In the near-infrared aggregation-induced luminescence material, triphenylamine is used as an electron donor, isoquinoline is used as an electron acceptor, an aromatic ring is used as a π bridge to connect the two parts, and the single-bonded benzene ring in the molecule has a strong intermolecular torsional charge transfer (TICT) effect. The material has excellent near-infrared luminescence performance in an aggregated state, has high affinity for fingerprint secretions, grease, etc., has the advantages of simple synthesis, mild reaction conditions, good luminescence performance in an aggregated state, etc., can realize latent fingerprint imaging on various materials through atomizer spraying, and realize high-resolution imaging of the tertiary structure of the fingerprint, achieving extremely high resolution.

The utility model relates to a lamp panel and a display device. The lamp panel comprises a substrate, lamp beads and a box dam. The number of the lamp beads is multiple, and the multiple lamp beads are arranged on the substrate in an array mode. The multiple box dams are arranged on the substrate, and the multiple box dams are connected end to end and annularly arranged on the periphery of each lamp bead; wherein the width d1 and the height h1 of each box dam meet the following conditions: 0.5 d1 < = h1 < = d1; the width d1 of each box dam and the distance d2 between every two adjacent lamp beads meet the condition that d1 is smaller than or equal to d2. According to the lamp panel and the display device provided by the embodiment of the invention, the plurality of box dams which are adjacent end to end are annularly arranged on the periphery, so that the possibility of optical crosstalk generated when two adjacent lamp beads emit light can be blocked through the box dams. Meanwhile, by limiting the relation between the height h1 of the box dam and the width d1 of the box dam and the relation between the width d1 of the box dam and the distance d2 between every two adjacent lamp beads, the box dam glue is not prone to flowing, and the glue climbing phenomenon is not prone to occurring at the lamp beads.

The invention relates to the technical field of solid luminescent materials, in particular to a CsPbBr3 perovskite quantum dot germanium borate glass material and a preparation method and application thereof. The CsPbBr3 perovskite quantum dot germanium borate glass material provided by the invention is prepared from the following chemical components in parts by mass: 25 to 29 parts of GeO2, 100 to 108 parts of H3BO3, 2 to 6 parts of ZnO, 1 to 4 parts of SrCO3, 3 to 8 parts of Cs2CO3, 2 to 7 parts of PbO and 1 to 8 parts of NaBr. The perovskite quantum dots are embedded into the germanium borate glass, so that the environmental stability of the perovskite quantum dots is improved, and the application prospect of the perovskite quantum dots in photoelectric devices is expanded. Furthermore, LiF is introduced into the perovskite quantum dot germanium borate glass material, so that not only is the fluorescence quantum yield of the perovskite quantum dot glass improved, but also the environmental stability of the perovskite quantum dots can be further improved.

The invention provides an optical fiber image transmission element for ultraviolet detection and a preparation method and application thereof, and the preparation method comprises the steps: carrying out the pickling of the cross section of one end of the optical fiber image transmission element, enabling the cross section to form a microporous structure with the depth of 10-50 [mu] m, and obtaining a pickled optical fiber image transmission element; a fiber core of the optical fiber image transmission element is made of an easily acid-etching material, and a cladding is made of an acid-etching-resistant material; the preparation method comprises the following steps: dissolving CsX and PbX2 in an organic solvent to obtain a precursor solution; wherein X is at least one of Cl, Br and I; the precursor solution is heated, gas is introduced, the gaseous precursor solution is brought to the microporous structure, the precursor solution reacts at the microporous structure in a gaseous form to generate CsPbX3 quantum dots, the microporous structure is filled, and a filled optical fiber image transmitting element is obtained; and the protection window is arranged on the filling surface of the filling optical fiber image transmission element, so that the optical fiber image transmission element for ultraviolet detection is obtained, the optical fiber image transmission element has the advantages of high brightness and high resolution, and the efficiency and the resolution of an ultraviolet detector can be effectively improved.

The invention relates to perovskite quantum dot glass powder and a preparation method thereof, the chemical formula of the glass powder is CsPb (Ax B1-x) 3, A and B are one or more of Cl, Br or I, x is more than or equal to 0 and less than or equal to 1, and the total molar amount of the components is 100 mol%. According to the perovskite quantum dot glass powder, the fluorescence wavelength can be adjusted through component change, the preparation method is simple and low in toxicity, and the perovskite quantum dot glass powder has high stability and does not need an annealing process. The method can be widely applied to the fields of display devices, lighting equipment, photovoltaic devices, photoelectric sensors and the like.

The application discloses a kind of wide temperature range stable copper cluster scintillator and its preparation method and application, the scintillator chemical general formula is Cu4X4 (dppyme) 2, by introducing methyl in pyridine ring 6 position structure space constraint, induce to form long-range ordered crystal packing phase, significantly enhance the lattice rigidity.This material has the microcosmic energy level structure of thermal activation delayed fluorescence (TADF) and self-trapped excitor (STE) light emitting mechanism synergism, in-190 ℃ to 150 ℃ extremely wide temperature range, excellent radiation luminescence stability is shown.The application is prepared by room temperature solution method, and process is simple.The flexible film constructed using the material improves the mechanical stability by polymer embedding process, and the spatial resolution reaches 27.8 lp / mm, which is suitable for X-ray detection and imaging in extreme environments such as deep space exploration, polar scientific research and high-temperature industrial detection.

The utility model relates to the technical field of LED lamp strips, in particular to a waterproof LED lamp strip which comprises a flexible lamp shell body, sealing waterproof mechanisms are arranged on the surface of the flexible lamp shell body, the surface of a first clamping sleeve and the surface of a second clamping sleeve, and a high-brightness mechanism is arranged on the inner wall of a flexible lampshade. The inner wall of the flexible lamp shell body and the inner wall of the lamp bead plate body are each provided with a mechanism convenient to disassemble and assemble. The LED lamp strip is more convenient to disassemble and assemble, and meanwhile, the LED lamp strip is more convenient to overhaul and maintain the LED lamp beads on the surface of the lamp bead plate body; according to the LED lamp strip, the phenomenon that in the using process of the LED lamp strip, water enters the flexible lamp shell body through gaps between the first clamping sleeve and the flexible lamp shell body and between the second clamping sleeve and the flexible lamp shell body, and consequently the flexible lamp shell body is damaged is avoided, the service life of the LED lamp strip is greatly prolonged, the light-emitting lighting effect of the LED lamp strip is better, and the using effect of the LED lamp strip is better.

The utility model provides a light-emitting cooling fan which comprises a lower frame and an upper frame which are buckled with each other, a fixing frame is arranged in the center of the lower frame, a driving motor is fixedly installed in the center of the fixing frame, fan blades are installed on an output shaft of the driving motor, an inner ring is arranged on the top of the lower frame, a lamp strip is installed on the outer side of the inner ring, and a transparent piece is arranged on the outer side of the lamp strip in a covering mode. The upper and lower sides of the transparent part are fixedly clamped with the lower frame and the upper frame; at least two groups of fixing grooves are formed in the outer side of the transparent part at equal intervals, side prisms are fixedly mounted in the fixing grooves, and side light-transmitting mirrors cover notches of the fixing grooves. The lamp strip is mounted on the outer side of the inner ring of the lower frame, so that the fan frame can be illuminated during use, the overall light-emitting effect is improved, a better visual effect is obtained, meanwhile, the transparent part covers the outer side of the lamp strip, and the side prism and the side light-transmitting mirror are mounted on the outer side of the transparent part, so that the illumination uniformity is improved, and the service life of the fan frame is prolonged. And the transparent piece is more harmonious and attractive in light emission.

The utility model belongs to the technical field of LED lighting, specifically a kind of frameless panel lamp for label backlight, including frame, backplate, light guide plate and diffusion plate, frame is provided with two groups of relative arrangement, the side surface of two groups of frame mutually close is provided with mounting groove along the length direction of itself, the groove bottom of mounting groove is provided with light bar, backplate, light guide plate and diffusion plate are sequentially abutment settings, and backplate and diffusion plate are respectively with the two side walls of mounting groove along the length direction of itself abutment, frame is provided with inclined plane at the mounting groove slot edge, inclined plane is arranged in the side close to diffusion plate, and from the direction of mounting groove slot, the cross-sectional area of frame close to the side of mounting groove slot is less than the cross-sectional area of the side close to the groove bottom of mounting groove. The design of the present application through inclined plane reaches the effect of frameless, need not be slotted design in the side edge of diffusion plate, reduce the thickness of diffusion plate, can also enhance the luminous effect of panel lamp.

The light-emitting tea tray with the water absorption function comprises a tea tray body, the tea tray body comprises a stone panel and a light guide plate arranged below the stone panel, and a light-emitting assembly emitting light towards the light guide plate is further arranged in the tea tray body. At least one water absorption unit is arranged on the tea tray body. According to the light-emitting tea tray with the water absorption function, the light guide plate evenly diffuses light rays emitted by the light-emitting assembly, so that the light rays are evenly distributed in the tea tray body, and the light-emitting effect of the light-emitting tea tray is improved; the water absorption unit is arranged on the tea tray body, redundant tea water can be directly poured into the water absorption unit when tea leaves are brewed, the water absorption unit directly absorbs the tea water, the situation that accumulated water is generated on the surface of the tea tray body to affect the light-emitting effect of the tea tray body is avoided, the problems that redundant tea water needs to be poured and the like are solved, and the tea tray is simple in structure, convenient to use and high in practicability. After the tea water absorbed by the water absorption unit is evaporated, the water absorption unit can be continuously and repeatedly used.

The invention relates to the technical field of light guide elements, in particular to a horse race lighting effect light guide plate which comprises an injection molding light guide plate, a reflecting film covering and attached to the bottom face of the injection molding light guide plate and a shading film partially covering and attached to the top face of the injection molding light guide plate. The area, located between the periphery of the injection molding light guide plate and the periphery of the shading film, of the injection molding light guide plate is a light emitting area, the outer side face of the injection molding light guide plate is obliquely arranged towards the center direction of the injection molding light guide plate from bottom to top, and the outer side face of the injection molding light guide plate and the top face of the injection molding light guide plate are arranged in a fillet mode. Light is smoothly transited to the corner between the outer side face of the injection molding light guide plate and the bottom face of the injection molding light guide plate and then is dispersed through the reflecting film, so that the phenomenon that a local area of a light emitting area is exploded and brightened due to the fact that a horse race luminous efficiency light source is too close to the light emitting area is effectively improved, the light emitting brightness of the light emitting area is balanced, and the light emitting effect is improved.

The invention discloses a modification method of rare earth superfine nanowires, fluorescent ink and a preparation method and application of the fluorescent ink. The modification method comprises the steps that the rare earth superfine nanowires are dispersed in an organic solvent to obtain nanowire dispersion liquid, the nanowire dispersion liquid is modified through ligand molecules, and the modified rare earth superfine nanowires are obtained; by modifying the rare earth superfine nanowires, the luminescent property and dispersity of the rare earth superfine nanowires can be remarkably improved, the luminescent property of the fluorescent ink prepared by the invention is remarkably improved, different ligand molecules are selected to treat the rare earth superfine nanowires, the luminescent property of the fluorescent ink can be regulated and controlled, and the fluorescent ink has the advantages of high fluorescence intensity and strong adjustability.