30results about How to "Good electronic acceptance" patented technology

The invention relates to acridine derivatives of which the structure is disclosed as Formula (1). When the electronic transmission layer of the electroluminescent device is prepared from the material provided by the invention, the turn-on voltage of the device can be lowered, the luminescence efficiency of the device can be enhanced, and the service life of the device can be prolonged.

The invention discloses an OLED (organic light-emitting device) and relates to the technical field of organic light-emitting. The OLED is obtained from the compound in the general formula I as a holetransport layer and the compound in the general formula II as an electron transport layer. By means of an electron transport layer material and a hole transport layer material, electron migration speed of the electron transport layer can be increased, and the probability of carrier injection and recombination in the light emitting layer is increased by properly adjusting the hole transport layer,so that light-emitting efficiency of the device is increased and the service life of the device is prolonged; the driving voltage of the OLED can also be effectively reduced, and the problems of low light-emitting efficiency, short service life and high driving voltage in the prior art are solved; the materials are OLED material with excellent performance.

The invention relates to a 6, 6-dimethyl-6H- benzo [cd] pyrene derivative, which is a class of compounds as shown in a formula (I), wherein n is 1 or 2; R1-R5 are five substituent groups at different positions on Ar, the substituent groups are identical or different from each other, and the substituent groups are respectively selected from H atoms, C1-C20 aliphatic linear chains or branch alkyls or C1-C20 aromatic groups, independently; Ar is an aromatic group; A is N atom or CH; L is a single bond, and is selected from C6-C10 aromatic ring or heteroaromatic ring. The invention also discloses an application of the compounds in organic electroluminescent devices, especially, being used as an electron transport material and/or a luminescent host material of OLED (Organic Light Emitting Diode).

The invention relates to phenazine derivatives. The phenazine derivatives have structures shown in the formula (1). The phenazine derivatives are suitable to use as an ETL material in an electro-luminescent display. The phenazine derivatives can effectively reduce the operating voltage of the organic electroluminescent device and improve the luminous efficiency of the organic electroluminescent device.

The invention provides a derivative containing a phenanthroimidazole structure and an organic light-emitting device thereof, and belongs to the technical field of organic photoelectric materials. Thederivative containing the phenanthroimidazole structure provided by the invention has the structure shown in formula (I), the phenanthroimidazole derivative belongs to a typical electron-deficient system and has a good electron-accepting capability, the derivative is also a polycyclic aromatic hydrocarbon system with a common plane in the spatial structure and has a suitable HOMO and LUMO energy level, and therefore the derivative has a good electron transfer capability and is an excellent electron transport material; and the molecular weight of the derivative is between 500 and 900, so that the glassy state conversion temperature is higher, and therefore the heat stability is good, and meanwhile, the vacuum evaporation film-forming property is good. The organic light-emitting device prepared from the derivative has the advantages of being high in efficiency, long in service life and superior to an existing common OLED (organic light emitting diode) device.

The invention relates to a polycyclic aromatic hydrocarbon derivative comprising a quinoxaline group. The compound has the structure represented as the formula (I). The polycyclic aromatic hydrocarbon derivative is suitable for being used as an ETL material in electroluminescence displayers. The compound can effectively reduce operating voltage of an organic light-emitting device, and can improve the luminous efficiency of the organic light-emitting device.

The invention provides a triphenylamine-carbazole-naphthylbenzimidazole terpolymer and an electric storage device prepared by using the terpolymer as an organic layer. The terpolymer has excellent electric storage performance. The electric storage device is high in switching current ratio, large in storage density, low in power consumption, capable of conducting repeated cyclic reading and writing and excellent in performance. The triphenylamine-carbazole-naphthyl benzimidazole terpolymer is simple in synthesis method, stable in preparation process of the electric storage device and high in feasibility of an operation process, shows ternary electric storage performance, and can realize large-scale production.

The invention discloses a formula of a fullerene-containing photoelectric semiconductor coating. The fullerene-containing photoelectric semiconductor coating comprises the following components in parts by mass: 50-100 parts of vinyl chloride-vinyl acetate resin, 5-30 parts of melamine resin, 35-70 parts of a hole transport material, 20-40 parts of an electron transport material I, 20-40 parts of an electron transport material II, 2-10 parts of a charge generating material, 1-5 parts of an antioxidant and 300-500 parts of a solvent. The fluorine-containing photoelectric semiconductor coating has the advantages that the fluorine-containing and hydroxyl-containing modified fullerene C60 is added and is used for a positive charging type photosensitive drum coating, and excellent electron transmission characteristics and high wear resistance are obtained.