Abstract: A light-emitting device includes: a first electrode and a second electrode that are superposed; an emitting layer (EML) located between the first electrode and the second electrode; and an electron transport layer (ETL) located between the first electrode and the EML. The ETL includes a first surface proximate to the EML and a second surface proximate to the first electrode, oxygen vacancies is formed in the ETL, and a concentration of oxygen vacancies in the ETL gradually increases from the second surface to the first surface.

Abstract: The present disclosure relates to a ligand for a quantum dot, a ligand quantum dot, a quantum dot layer and a method for patterning the same. The surface of the ligand quantum dot of the present disclosure is connected with the cleavage-type ligand including a first ligand unit A, a cleavage unit B, and an adhesion adjusting unit C. The method includes: providing a substrate; coating a mixture containing the ligand quantum dot on the substrate to form a quantum dot film; exposing a preset region of the quantum dot film to ultraviolet light, so that the cleavage unit B in the cleavage-type ligand undergoes a photolysis reaction, and a molecular segment containing the adhesion adjusting unit C and obtained after decomposition is detached from a surface of the quantum dot; and washing off an unexposed region of the quantum dot film with an organic solvent, followed by drying.

Abstract: A quantum dot light-emitting device, a manufacturing method and a display device are provided. The quantum dot light-emitting device includes a cathode and an electron transport layer arranged on one side of the cathode, wherein the electron transport layer comprises a plurality of pixel regions; an adhesive layer arranged on one side of the electron transport layer, away from the cathode; a quantum dot film layer arranged on one side of the adhesive layer, away from the electron transport layer, wherein both the quantum dot film layer and the adhesive layer are located in the pixel regions; wherein the adhesive layer is respectively connected to the electron transport layer and the quantum dot film layer through at least one of chemical bonding and physical entanglement.

Abstract: A quantum dot light-emitting device, a manufacturing method and a display device are provided. The quantum dot light-emitting device includes a substrate and a cathode arranged on the substrate; an electron transport layer arranged on one side of the cathode, away from the substrate, wherein the electron transport layer comprises a plurality of pixel regions; an adhesive layer arranged on one side of the electron transport layer, away from the cathode; a quantum dot film layer arranged on one side of the adhesive layer, away from the electron transport layer, wherein both the quantum dot film layer and the adhesive layer are located in the pixel regions; wherein the adhesive layer is respectively connected to the electron transport layer and the quantum dot film layer through at least one of chemical bonding and physical entanglement.

Abstract: The present disclosure provides a light-emitting device, comprising: a first carrier transport layer disposed on a substrate; and a light-emitting layer disposed on a side of the first carrier transport layer away from the substrate; wherein the first carrier transport layer comprises a first transport sublayer comprising nanoparticles and an inorganic ligand connected to the surface of the nanoparticles, wherein the inorganic ligand comprises a halogen group element or an oxygen group element.

Abstract: Embodiments of the present disclosure provide a light emitting diode device, a display panel, a display device, and a manufacturing method.

Abstract: Provided are a quantum dot film layer, a quantum dot light-emitting device, and a fabrication method. The quantum dot film layer includes: quantum dots; a bonding structure, one end of the bonding structure being connected with the quantum dots; and a fluorine-containing aromatic structure, the fluorine-containing aromatic structure being connected with the other end of the bonding structure to connect with the quantum dots by means of the bonding structure.

Abstract: Embodiments of the present disclosure provide a light emitting diode device, a display panel, a display device, and a manufacturing method.

Abstract: The present disclosure discloses a quantum dot light emitting device, a preparation method therefor and a display apparatus. In the present disclosure, at least one of one or more layers of light emitting functional layers is disposed to include at least two sub-function layers, the sub-function layers comprise ligands, and surface energies of the ligands corresponding to sub-function layers change in gradient along a transmission direction of carriers in the sub-function layers, so that energy levels of the sub-function layers change in gradient. In this way, the energy levels of the sub-function layers can be matched with the energy levels of the adjacent light emitting function layers, so that carrier transmission and balance as well as device efficiency can be improved.

Abstract: A method of patterning quantum dot layer includes: forming, on a substrate, a film layer including a photosensitive material and quantum dots with ligands on surfaces of the quantum dots; irradiating a quantum dot reserved area with light of a preset wavelength; where under irradiation with light of the preset wavelength, the photosensitive material or a product of the photosensitive material after light irradiation reacts with the ligands on the surfaces of the quantum dots, to allow the ligands to fall off from the surfaces of the quantum dots, so that solubility of the quantum dots is changed to cause the quantum dots to undergo coagulation; and removing a portion of the film layer which is not irradiated by the light of the preset wavelength, to form a patterned quantum dot portion of the quantum dot layer in the quantum dot reserved area.

Abstract: A method of patterning quantum dot layer includes: forming, on a substrate, a film layer including a photosensitive material and quantum dots with ligands on surfaces of the quantum dots; irradiating a quantum dot reserved area with light of a preset wavelength; where under irradiation with light of the preset wavelength, the photosensitive material or a product of the photosensitive material after light irradiation reacts with the ligands on the surfaces of the quantum dots, to allow the ligands to fall off from the surfaces of the quantum dots, so that solubility of the quantum dots is changed to cause the quantum dots to undergo coagulation; and removing a portion of the film layer which is not irradiated by the light of the preset wavelength, to form a patterned quantum dot portion of the quantum dot layer in the quantum dot reserved area.

Abstract: Disclosed are a display substrate, a display device and a manufacturing method for the display substrate. The display substrate comprises a base substrate, a first electrode located at one side of the base substrate, a charge auxiliary layer located at the side of the first electrode away from the base substrate, and a second electrode located at the side of the charge auxiliary layer away from the first electrode; the surface of the charge auxiliary layer away from the first electrode is provided with a plurality of relief structures distributed in an array; an acid generator is mixed in the charge auxiliary layer, and the content of the acid generator in regions of different thicknesses of the charge auxiliary layer is different.

Abstract: Embodiments of the present disclosure provide an array substrate and a manufacturing method therefor, and a display panel. The array substrate includes: a substrate and a pixel defining layer provided on the substrate, the pixel defining layer including a plurality of opening areas, and the plurality of opening areas being provided with a plurality of quantum dot light-emitting devices in a one-to-one correspondence manner; each of the quantum dot light-emitting devices includes a quantum dot light-emitting layer, and the quantum dot light-emitting layer is made of a quantum dot material. At least one of the pixel defining layer and the quantum dot material is magnetic.

Abstract: Embodiments of the present disclosure provide a quantum dot ligand, a quantum dot material, and a quantum dot light emitting device. In a quantum dot ligand of general formula (I), n is 1, 2, 3, or 4; two of X, Y, and Z are G1 group and G2 group, respectively, and the remaining one is selected from the group consisting of G1 group, G2 group, and hydrogen, wherein the G1 group, for each occurrence, is independently selected from —(CH2)m-L-(CH2)n—R1, wherein R1 is a coordination group, m is 0 to 6, n is 0 to 6, and L is a divalent group or absent; the G2 group, for each occurrence, is independently selected from a C4-20 alkyl having a carbon chain with more than 4 carbon atoms.

Abstract: Disclosed are a quantum dot display panel, a manufacturing method thereof and a display device. The manufacturing method includes: forming a first functional layer on a substrate; processing the first functional layer so that the first functional layer includes a processed region and the processed region includes ions having a first polarity; forming a quantum dot layer having a second polarity in the processed region. The second polarity and the first polarity are opposite electrical polarities.

Abstract: Provided are a display substrate, a preparation method thereof, and a display apparatus. A portion of a pixel definition layer that is in contact with a light-emitting functional layer is configured to have the performance of switching between hydrophilicity and hydrophobicity when an external condition changes.

Abstract: A light emitting thin film and a manufacturing method thereof, a light emitting device and a displaying substrate, which relates to the technical field of displaying. The light emitting thin film includes a polymer (1) and a quantum dot (2) bonded to the polymer (1); the quantum dot (2) includes a metal nanoparticle (3) and a core-shell structure connected to the metal nanoparticle (3); and the metal nanoparticle (3) is bonded to the polymer (1) by a sulfide bond.

Abstract: A ligand includes a molecular skeleton, a first coordinating group connected to the molecular skeleton, at least one initial group connected to the molecular skeleton, and a protecting group connected to an end of each initial group away from the molecular skeleton. Each initial group is capable of forming a second coordinating group after deprotection.

Abstract: The present disclosure provides a quantum-dot ligand, a quantum-dot catalyst and a quantum-dot device. The quantum-dot ligand includes: a first ligand having a first group and a second group and a second ligand having an inorganic ion, in which a coordination bond is formed between the first group and a surface of a quantum dot, a hydrogen bond is formed between the second group and a hydroxyl group; and a coordination bond is formed between the inorganic ion and the surface of the quantum dot. The quantum-dot catalyst of the present disclosure can enhance a catalytic activity of the quantum dots and improve the catalytic performance.

Abstract: A quantum dot light-emitting device, a manufacturing method and a display device are provided. The quantum dot light-emitting device includes a substrate and a cathode arranged on the substrate; an electron transport layer arranged on one side of the cathode, away from the substrate, wherein the electron transport layer comprises a plurality of pixel regions; an adhesive layer arranged on one side of the electron transport layer, away from the cathode; a quantum dot film layer arranged on one side of the adhesive layer, away from the electron transport layer, wherein both the quantum dot film layer and the adhesive layer are located in the pixel regions; wherein the adhesive layer is respectively connected to the electron transport layer and the quantum dot film layer through at least one of chemical bonding and physical entanglement.