A hydrophobic polyimide material and a preparation method thereof, and an organic electroluminescence light emitting diode are provided. The hydrophobic polyimide material includes organic/inorganic composite nanoparticles. The preparation method of the hydrophobic polyimide material includes steps: mixing polyamic acid solution and organic/inorganic composite nanoparticle solution evenly, and stirring to obtain solution of the hydrophobic polyimide material; coating the solution of the hydrophobic polyimide material on a surface of a substrate to obtain hydrophobic polyimide by baking and curing.

A device having design film thicknesses, to suppress non-uniformity of a light emitting surface, to provide a quantum dot electroluminescence device with good luminous efficiency and light emitting life-span, and to provide an excellent quantum dot electroluminescence device with luminous efficiency and light emitting life-span. A quantum dot electroluminescence device including a hole transport layer, an electron transport layer, and a light emitting layer disposed between the hole transport layer and the electron transport layer, wherein the hole transport layer includes a polymer material and a low molecular material, the light emitting layer includes a quantum dot having a core-shell structure, and a residual film ratio of the hole transport layer is greater than or equal to about 95%.

The present disclosure relates to a composition that includes a first layer having a first molecule that includes a metal and a halogen, a second layer that includes the first molecule, and a third layer that includes a chiral molecule, where the third layer is positioned between the first layer and the second layer, and the first layer, the second layer, and the third layer form a crystalline structure.

An optical film, a method for manufacturing the same, and a backlight module are provided. The optical film is formed by a cadmium-free quantum dot gel layer, which includes a first polymer and a plurality of cadmium-free quantum dots dispersed therein. The first polymer includes: 1 wt % to 5 wt % of a photoinitiator; 3 wt % to 30 wt % of scattering particles; 10 wt % to 40 wt % of a thiol compound; 5 wt % to 30 wt % of a monofunctional acrylic monomer; 5 wt % to 20 wt % of a bifunctional acrylic monomer; 10 wt % to 40 wt % of a multifunctional acrylic monomer; 5 wt % to 20 wt % of an organosilicon grafted oligomer; and 100 ppm to 2,000 ppm of an inhibitor. The thiol compound includes a primary mercaptan and a secondary mercaptan, and a weight ratio of the primary mercaptan to the secondary mercaptan ranges from 1:3 to 3:1.

The present invention provides quantum dot (QD)-in-matrix materials for use in blue light emitting diodes, wherein the QD-in-matrix material comprises a plurality of quantum dots embedded in a doped lead perovskite matrix.

A semiconductor sensor device for detecting an analyte including a semiconducting layer, one or more organic molecules in the semiconducting layer, and one or more receptor molecules, comprising a poly-cyanostilbene macrocycle, wherein the one or more receptors is embedded within or onto the semiconducting layer of the semiconductor sensor device. Also disclosed is a method of preparing the semiconductor sensor device including a step of coupling the one or more receptor molecules into or onto the semiconducting layer of the semiconductor sensor device, a dielectric surface, or an electrode surface. Also described is chemical sensing device including the semiconductor sensor device and other elements of a sensing device.

An organic device includes at least one electrode, an insulating layer adjacent to the at least one electrode in a plan view, and an organic layer that is continuously in contact with an upper surface of the at least one electrode and an upper surface of the insulating layer. The organic layer contains a polymer of an organic material. The organic material contains a basic molecular skeleton and a polymerizable functional group. In the polymer, the organic material is polymerized through the polymerizable functional group.

An object is to obtain a composition capable of: forming a uniform film even by spray coating or even when the composition is applied in the form of ink for inkjet printing; and preventing light emission from a portion other than an ITO electrode surface when the film is mounted on an organic EL device and light is emitted from the device. A conductive polymer composition contains: a composite containing a π-conjugated polymer (A) and a polymer (B) shown by a general formula (1); H.sub.2O (D) for dispersing the composite; a water-soluble organic solvent (C); and a compound (E) shown by a general formula (2). The electric conductivity of a film with a thickness of 20 to 200 nm formed from the conductive polymer composition is less than 1.00E-05 S/cm.

##STR00001##

The invention relates to a novel composition comprising n-type organic semiconducting (OSC) polymers and p-type OSCs, to its use as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, perovskite-based solar cell (PSC) devices, organic photo-detectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE, OPV, PSC, OPD, OFET and OLED devices comprising the compositions.

An organic semiconductor detector for detecting radiation has an organic conducting active region, an output electrode and a field effect semiconductor device. The field effect semiconductor device has a biasing voltage electrode and a gate electrode. The organic conducting active region is connected on one side to the field effect semiconductor device and is connected on another side to the output electrode. The organic semiconductor detector has an option switching circuitry having a field effect semiconductor device and resistance.