31results 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 relates to compounds disclosed a Formula (1), wherein n is 1 or 2; R1-R5 are identical or different, and are respectively independently selected from H atom or C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups or aromatic groups; Ar is an aryl group; A is N atom or CH; and L is a single bond or is selected from C4-C10 aromatic rings or aromatic heterocyclic rings. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and / or light-emitting body material of an OLED (organic light-emitting diode).

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 relates to a novel compound which is characterized in that the structure of the novel compound is shown in formula (1) in the specification; when the phosphorescent host material and / or electron transport material of an electroluminescent device is prepared from the novel compound, the turn-on voltage of the device can be lowered, the luminous efficiency of the device is improved and the service life of the device is prolonged.

The invention relates to a heterocyclic organic photoelectric material, and a preparation method and an application thereof. The material is a compound represented by formula I shown in the description. The material of the invention is a heterocyclic aromatic hydrocarbon derivative has excellent chemical stability and electron mobility; the material is synthesized in one step, so the conversion rate is high; and the material has the advantages of excellent electron transport property and hole mobility, good thermal stability, high efficiency, low driving voltage and difficulty in crystallization, so the material is applied to an electroluminescent device to achieve low driving voltage, high brightness, good thermal stability, long half-life cycle, low cost and 2-3 times longer life.

The invention relates to compounds disclosed a Formula (1), wherein n is 1 or 2; R1-R5 are five substituent groups on Ar in different positions, are identical or different, and are respectively independently selected from H atom or C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups or aromatic groups; Ar is an aryl group; A is N atom or CH; and L is a single bond or is selected from C4-C10 aromatic rings or aromatic heterocyclic rings. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and / or light-emitting body material of an OLED (organic light-emitting diode).

The present invention involves a benzoline derivative, which has a structure shown in the formula (1), where: R2 and R1 or R3 are connected to form a Fang Ring and pyrineShow the structure.When the electrophoretic device uses the material of the present invention to prepare the electronic transmission layer, the opening voltage of the device can be reduced, the lighting efficiency of the device can be improved, and the service life of the device can be increased.

The invention relates to a benzacridine derivative. The structure of the benzacridine derivative is as shown in a formula (1). In the formula, R2 is bonded with R1 or R3 to form an aromatic ring. The aromatic ring is condensed with acridine to form a structure as shown in a formula (2) or (3). When the material provided by the invention is used for preparing an electron transfer layer of an electroluminescent device, the turn-on voltage of the device can be reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The present invention relates to a benzoacridine derivative, which has a structure shown in formula (1), wherein: R1 and R2 are connected to form an aromatic ring fused with acridine to form a structure shown in formula (2), further, the Said R3 and R4 are connected to form an aromatic ring fused with acridine into a structure shown in formula (3). When the electroluminescence device adopts the material of the invention to prepare the electron transport layer, the turn-on voltage of the device can be reduced, the luminous efficiency of the device can be improved, and the service life of the device can be increased.

The present invention relates to a novel compound, which is characterized in that it has a structure shown in formula (1), and when an electroluminescent device adopts the material of the present invention to prepare a phosphorescent host material and / or an electron transport material, the turn-on voltage of the device can be reduced , improve the luminous efficiency of the device, and increase the service life of the device.

The invention relates to compounds disclosed a Formula (1), wherein n is 1 or 2; R1-R5 are identical or different, and are respectively independently selected from H atom or C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups or aromatic groups; Ar is an aryl group; A is N atom or CH; and L is a single bond or is selected from C4-C10 aromatic rings or aromatic heterocyclic rings. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and / or light-emitting body material of an OLED (organic light-emitting diode).

The present invention relates to a kind of acridine derivative, this kind of compound has the structure shown in formula (1), when electroluminescence device adopts the material of the present invention to prepare electron transport layer, can reduce the turn-on voltage of the device, improve the device Luminous efficiency increases the service life of the device.

The present invention relates to a heterocyclic organic photoelectric material and its preparation method and application. The material is a compound shown in the following formula I: the material of the present invention is a heterocyclic aromatic hydrocarbon derivative with excellent chemical stability, electron mobility, etc., and is synthesized in one step , high conversion rate, the material has the advantages of excellent electron transport characteristics and hole mobility, good thermal stability, high efficiency, low driving voltage and not easy to crystallize, it is used in electroluminescent devices with low driving voltage and high brightness, Good thermal stability, long half-life period, low cost, and 2-3 times longer lifespan.

The present invention relates to a class of derivatives containing quinazoline groups, such compounds have the structure shown in formula (1). The quinazoline group-containing derivatives of the present invention are suitable for use as ETL materials in electroluminescence displays. The use of the material of the invention can effectively reduce the operating voltage of the organic electroluminescent device and improve the luminous efficiency of the organic electroluminescent device.

The invention relates to a condensed-ring aromatic hydrocarbon derivative substituted with a phenazine group, and the compound has a structure shown in formula (1). The fused-ring arene derivative substituted by phenazine group of the present invention is suitable for ETL material in electroluminescence display. The use of the material of the invention reduces the turn-on voltage of the device, improves the luminous efficiency of the device, and increases the service life of the device.

The present invention relates to a class of compounds as shown in formula (1), wherein: n is 1 or 2; Ar1 ​​and Ar2 are independently aryl or heteroaryl; R1‑R5 are five substitutions at different positions on Ar2 The bases are the same or different from each other, and are independently selected from H atoms, C1-C20 aliphatic straight-chain or branched hydrocarbon groups, and aromatic groups; A is N atom or CH; L is a single bond, selected from C4-C20 C10 aromatic ring or aromatic heterocyclic ring. The present invention also protects the application of such compounds in organic electroluminescent devices, especially as electron transport materials and / or light-emitting host materials of OLEDs.

The invention relates to a phenazine group substituted polycyclic aromatic hydrocarbon derivative. The compound has a structure shown as a formula (1). The phenazine group substituted polycyclic aromatic hydrocarbon derivative is suitable for being used as an ETL material in an electroluminescent display. With application of the material, the turn-on voltage of the device is reduced, the luminousefficiency of the device is improved and the service life of the device is prolonged. .

The present invention relates to a class of compounds as shown in formula (1), wherein: n is 1 or 2; R1-R5 are five substituents at different positions on Ar, which are the same or different from each other, and each independently selected from H Atom, C1-C20 aliphatic straight chain or branched hydrocarbon group, aromatic group; Ar is aromatic group; A is N atom or CH; L is a single bond, selected from C4-C10 aromatic ring or aromatic heterocyclic ring . The present invention also protects the application of such compounds in organic electroluminescent devices, especially as electron transport materials and / or light-emitting host materials of OLEDs.

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.

The invention relates to a bibenzimidazole derivative. The structure of the bibenzimidazole derivative is represented by formula (1). The bibenzimidazole derivative can be used to prepare the phosphorescence host material and / or electron transfer material of electroluminescent devices in order to reduce the driving voltage of the devices, improve the luminescence efficiency of the devices and prolong the service life of the devices.

The present invention relates to a 6,6-dimethyl-6H-benzo[cd]pyrene derivative, a class of compounds shown in formula (1), wherein: n is 1 or 2; R1-R5 are The five substituents at different positions are the same or different from each other, and are independently selected from H atoms, C1-C20 aliphatic straight-chain or branched hydrocarbon groups, and C1-C20 aromatic groups; Ar is an aromatic group ; A is an N atom or CH; L is a single bond, selected from a C6-C10 aromatic ring or aromatic heterocyclic ring. The present invention also protects the application of such compounds in organic electroluminescent devices, especially as electron transport materials and / or light-emitting host materials of OLEDs.

The present invention relates to a class of fused-ring aromatic hydrocarbon derivatives containing naphthyridine groups, and the compounds have the structure shown in formula (1). The condensed ring aromatic hydrocarbon derivative containing naphthyridine group of the present invention is suitable as ETL material in electroluminescence display. The use of the material of the invention can effectively reduce the operating voltage of the organic electroluminescent device and improve the luminous efficiency of the organic electroluminescent device.

The invention relates to polycyclic aromatic hydrocarbon derivatives containing quinoxaline groups. The compounds have structures as shown in a formula (1) which is described in the specification. Thepolycyclic aromatic hydrocarbon derivatives containing the quinoxaline groups are applicable as ETL materials in electroluminescent displays. By using the polycyclic aromatic hydrocarbon derivatives,the working voltage of organic light-emitting devices can be effectively reduced, and the light-emitting efficiency of the organic light-emitting devices can be improved.

The present invention relates to a class of benzophenazine derivatives, which have the structures shown in formulas (1) and (2). The benzophenazine derivatives of the present invention are suitable as ETL materials in electroluminescent displays. The use of the material of the invention can effectively reduce the operating voltage of the organic electroluminescent device and improve the luminous efficiency of the organic electroluminescent device.