14 results about "Quantum rods" patented technology

The invention discloses a CdSe / CdxZn1-xS quantum rod with high polarization degree and high luminous efficiency and a preparation method of the CdSe / CdxZn1-xS quantum rod. The quantum rod comprises a CdSe core and a CdxZn1-xS shell layer, wherein the CdSe core is coated with the CdxZn1-xS shell layer; the preparation method comprises the following steps: (1) preparing a CdO precursor solution in an inert gas environment, heating to a reaction temperature of 350 + / -20 DEG C, and then sequentially injecting tri-n-octylphosphine and a CdSe precursor solution to obtain a first mixed solution; (2) slowly dropwise adding a Zn precursor solution into the first mixed solution in the step (1) to obtain a second mixed solution; (3) injecting octadecene into the second mixed solution obtained in the step (2) for dilution, then slowly dropwise adding a mixed solution of octadecene and the S precursor solution, and stopping the reaction after dropwise adding to obtain a CdSe / CdxZn1-xS quantum rod; and (4) after the reaction is completed, cooling to room temperature, and purifying to obtain the CdSe / CdxZn1-xS quantum rod. The CdSe core is coated with the CdxZn1-xS alloy type shell layer structure, so that the polarization degree and the luminous efficiency of the quantum rod are improved.

Disclosed is a quantum rod, a light-emitting element including the same, an optical member, and an optical device, in which the quantum rod includes a nanoparticle, and one or more liquid crystal ligands bound to a surface of the nanoparticle and represented by a predetermined chemical formula.

The invention discloses a quantum rod with stable chirality and a preparation method thereof.The preparation method of the quantum rod with stable chirality comprises the steps that zinc stearate is dissolved in octadecene under the high-temperature condition, a selenium source is added to form a Se-TOP solution, and a ZnSe core solution is successfully prepared; purifying the ZnSe core, and dispersing the ZnSe core in a TOP solution to obtain a ZnSe-TOP core mother solution; then, the ZnSe-TOP core mother liquor is added into a reaction solution composed of a Cd precursor and a sulfur precursor, epitaxial growth is carried out under the high-temperature condition, and ZnSe / CdS quantum rods with different length-diameter ratios are obtained; and carrying out ligand exchange reaction on chiral cysteine and the surface of the quantum rod to obtain the II-type chiral ZnSe / CdS quantum rod. The prepared II-type quantum rod has good optical performance and stable chiral effect, and the chiral optical effect is not affected by the space structure of the core / shell structure of the quantum rod.

The invention relates to a full-color display device and a manufacturing method, a blue light LED chip and a TFT driving system are integrated, and a pixel-level light path isolation structure is constructed by adopting a black glass substrate. A through hole array matched with an LED chip is formed through synchronous laser drilling, a quantum rod solution modified by an olefine acid ligand and photo-cured by a multi-sulfydryl cross-linking agent is filled, and ordered arrangement and submicron patterning of quantum rods are achieved. And in combination with the top wavelength selective filtering reflector and the absorption of stray light by the black glass substrate, the light crosstalk is reduced, and the color saturation and the lighting effect are improved. Further, light-proof glass can be used as a substrate, the substrate and the black glass matrix adopt a homogeneous glass formula, the risk of thermal stress deformation is eliminated, and the preparation process is simplified by a back exposure curing process. The device has the characteristics of high color gamut, wide viewing angle polarization and high resolution, is short in manufacturing period and high in material utilization rate, and is suitable for the field of ultra-high-definition Micro LED full-color display.

The invention relates to the technical field of light-emitting devices, in particular to a composite material, a preparation method thereof, a thin film and electronic equipment. The composite material provided by the invention comprises a quantum rod body; the hydrophobic ligand is connected to the surface of the quantum rod body; the hydrophilic ligand is connected to the surface of the quantum rod body. The quantum rods are induced to be arranged orderly through the hydrophilic ligand and the hydrophobic ligand, self-assembly of the quantum rods is achieved, the anisotropic light-emitting layer thin film is obtained, and then the light source utilization rate is effectively increased.

The present application discloses a preparation method of a core-shell quantum dot and a core-shell quantum dot. The preparation method of the core-shell quantum dot includes the following steps: providing a silicon quantum rod; growing a cadmium-free semiconductor shell layer on a surface of the silicon quantum rod to obtain a core-shell quantum dot. The present application grows the cadmium-free semiconductor shell layer on the surface of silicon quantum rod, and the core-shell quantum dot obtained in this way includes a silicon quantum rod and a cadmium-free semiconductor shell layer coated on the surface of silicon quantum rod.

The present application relates to a kind of based on quantum rod clear sky lighting device, including light source module and light transmission plate, light source module is set at the back side of light transmission plate, light emitted by light source module is emitted through light transmission plate and forms illumination;Light source module includes white LED lamp pearl, double-waveband excitation light source for blue light excitation, controller and spectrum sensor, double-waveband excitation light source includes blue light excitation light source and ultraviolet excitation light source, spectrum sensor is used to monitor the blue light wavelength distribution output by the double-waveband excitation light source in real time, spectrum sensor is electrically connected with the corresponding input end of controller, double-waveband excitation light source is electrically connected with the corresponding output end of controller;The main body of light transmission plate is quantum rod function layer, quantum rod function layer is transparent layer with quantum rod distribution, quantum rod uses blue light quantum rod.This clear sky lighting device can not only be light and compact, low in manufacturing cost, and scattering efficiency is high, and has good eye protection effect to user.

The invention relates to the technical field of quantum rod panels, and discloses a quantum rod display structure which comprises a butt joint frame and quantum rod pieces, the quantum rod pieces are fixedly arranged in the butt joint frame, the quantum rod display structure comprises a first frame, a second frame and a limiting clamping seat, the first frame is fixedly connected to the second frame, and the limiting clamping seat is fixedly arranged on the first frame. The limiting clamping seat is used for supporting and fixing the butt-joint frame, and a quantum rod sheet is arranged in the butt-joint frame; an inner frame is arranged at the lower end of the butt-joint frame and makes contact with the butt-joint frame. The first frame and the second frame are arranged for supporting and fixing, the light source in the inner frame emits light, the light is guided by the guide plate to reach the quantum rod piece, the quantum rod piece is fixed through the butt-joint frame, the side end of the butt-joint frame is supported through the limiting clamping base, then the light is guided to the polarization plate and the liquid crystal panel, and therefore display work is conducted. The display definition is improved, and the production work of the panel is facilitated.

This application belongs to the field of display technology and relates to a composite material comprising a quantum rod, a first ligand, and a second ligand, wherein the first and second ligands are connected to the surface of the quantum rod; wherein both the first and second ligands are hydrophobic, the first ligand is oleophilic, and the second ligand is oleophobic. This application also relates to a method for preparing the composite material, a thin film, an optoelectronic device, and a display device. The technical solution provided by this application can improve the uniformity of the composite material arrangement, thereby improving the light extraction efficiency of the optoelectronic device.

The invention relates to a curable composition with quantum rods, and a preparation method and application thereof. The composition contains a quantum rod with the length-diameter ratio adjustable in a range of 2-10, the surface of the quantum rod is provided with an oxide protection layer with the thickness of 2-10 nm, and photosensitive molecules containing carbon-carbon double bonds and / or triple bonds are also grafted; a photosensitive cross-linking agent containing at least two azide groups; and a non-polar solvent. By controlling the concentration of each component, good dispersion and moderate crosslinking of the quantum rod are realized. The composition utilizes an azide-alkyne or azide-alkene click reaction to realize high-precision patterning. The quantum rod adopts a core-shell structure, so that the light-emitting wavelength can be adjusted, and the carrier transmission is optimized. The preparation method comprises the following steps: forming the protective layer, grafting the photosensitive molecules, dispersing and mixing. In preparation of the film, the composition is subjected to spin coating, illumination and dissolution of an unexposed area, the full-color display requirement can be met, and the quantum rods in the obtained film are orderly and directionally arranged.

The utility model discloses a novel quantum rod panel structure relates to quantum rod panel technical field, including hybrid backlight, the quantum rod luminous layer is bonded on hybrid backlight, and the TFT array layer is bonded on quantum rod luminous layer. The application provides a kind of novel quantum rod panel structure, by using two kinds of light sources of ultraviolet LED and blue LED in hybrid backlight, and using green light QR that can be excited by ultraviolet LED light source and red light QR that can be excited by blue LED light source in quantum rod luminous layer, so by adding a more pure blue LED, cooperate green light QR and red light QR these two QR materials, this kind of combination can provide high purity, high -efficient red light and green light peak and harmless blue light emission, so we can realize high color performance eye protection display through the special combination of QR LED without any blue filter and the software improvement of LCD display, reduce blue light hazard, and applicability is stronger.

This invention relates to a quantum rod thin film and a display device. The quantum rod thin film includes two transparent substrates disposed opposite each other, a polymer solution filled between the two transparent substrates, and a plurality of quantum rods disposed in the polymer solution. The quantum rods have a first alignment direction and a second alignment direction. A transparent electrode is provided on one of the transparent substrates, and at least some of the quantum rods are driven by the transparent electrode to switch between the first alignment direction and the second alignment direction. This invention employs a structure that changes the alignment direction of the quantum rods by applying an electric field to the transparent electrode. By applying a voltage signal to the transparent electrode, the alignment direction of the quantum rods can be precisely adjusted, enabling switching between wide and narrow viewing angles, improving overall adjustment accuracy, and facilitating operation.

Method of preparing a quantum rod nanocomposite, the method involving: combining a CdSe / CdS quantum rod, a metal ion catalyst, and a zinc precursor thereby forming a CdSe / CdxZn1-xS / ZnS quantum rod, wherein 0≤X<1; optionally purifying the CdSe / CdxZn1-xS / ZnS quantum rod; combining the CdSe / CdxZn1-xS / ZnS quantum rod with an inorganic oxide precursor thereby forming an inorganic oxide encapsulated CdSe / CdxZn1-xS / ZnS quantum rod, wherein the CdSe / CdxZn1-xS / ZnS quantum rod is at least partially encapsulated by an inorganic oxide coating; and optionally combining the inorganic oxide encapsulated CdSe / CdxZn1-xS / ZnS quantum rod with a binder thereby forming a binder coated inorganic oxide encapsulated CdSe / CdxZn1-xS / ZnS quantum rod and curing the binder thereby forming the quantum rod nanocomposite.

The invention relates to a preparation method of a wurtzite zinc selenide quantum rod material with a controllable size, and belongs to the technical field of semiconductor nanomaterial preparation. The preparation method specifically comprises the following steps: firstly, dissolving zinc carboxylate and selenium powder in oleylamine and dodecanethiol to form a uniform mixed solution A; at the reaction temperature, part of zinc carboxylate reacts with selenium to generate sphalerite zinc selenide clusters; the sphalerite zinc selenide cluster is acted by a surface ligand, and wurtzite zinc selenide is induced to grow in a reaction environment; the long-chain organic ligand promotes the zinc selenide quantum wires to grow along certain crystallographic orientation to form the zinc selenide quantum wires; and the phase structure of wurtzite zinc selenide is further stabilized through rapid cooling. The preparation process is low in raw material cost, good in process controllability, free of inert or vacuum atmosphere protection, controllable in product structure and crystallographic orientation, capable of achieving diameter and length regulation and control in size at the same time, capable of achieving diameter regulation and control within the range smaller than the exciton glass bulb radius, and more remarkable in quantum confinement effect.