43results about How to "Increased hole transport rate" patented technology

The invention discloses an organic compound containing spirofluorene dibenzocycloheptene and an application of the organic compound. The compound with spirofluorene dibenzocycloheptene as a core is connected with a nitrogen-containing branched chain through phenyl, biphenyl or naphthyl. The compound is not prone to crystallization, has good film-forming property and heat stability and has higher glass transition temperature and proper HOMO and LUMO energy levels; by means of optimization of device structure, photoelectric property of an OLED (organic light emission diode) device can be effectively improved, and the service life of the OLED device can be effectively prolonged, so that application requirements of a panel manufacturing enterprise can be met better.

The invention relates to a pyrene-containing organic compound and application thereof, and belongs to the technical field of semiconductors, wherein structure of the compound is represented by a general formula (1). The compound provided by the invention has relatively strong hole transport capability, and the hole injection and transport performance is improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound is applied to an OLED device, high film layer stability can be kept through device structure optimization, the photoelectric property of the OLED device can be effectively improved, and the service life of the OLEDdevice can be effectively prolonged.

The invention relates to a pyrene-containing organic compound and application thereof, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (1). The organic compound provided by the invention has relatively strong hole transport capability, and the hole injection and transport performance is improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound used as a light-emitting functional layer material of an OLED light-emitting device, the branched chains in the range of the invention can be matched to effectively improve the exciton utilization rate and radiation efficiency, reduce the efficiency roll-off under high current density, reduce the device voltage, improve the current efficiency of the device and prolong the service life of the device.

The invention discloses an aromatic amine compound and applications thereof, and belongs to the technical field of semiconductors, wherein the structure of the aromatic amine compound provided by theinvention is represented by a general formula (1). The invention also discloses applications of the compound. According to the invention, the compound provided by the invention is an aromatic amine compound, has strong hole transport capability and high hole mobility, can be used as a hole transport material, and can improve the efficiency of an organic electroluminescent device at a high hole transport rate; and under a proper LUMO energy level, the compound can achieve an electron blocking effect, improve the recombination efficiency of excitons in a light-emitting layer, reduce the efficiency roll-off under a high current density, reduce the device voltage and improve the current efficiency and the service life of a device.

The invention relates to an amino-containing organic compound and application thereof, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (1). According to the invention, the compound has relatively strong hole transport capability, and hole injection and transport performances are improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound is appliedto an OLED device, high film layer stability can be kept through device structure optimization, the photoelectric property of the OLED device can be effectively improved, and the service life of the OLED device can be effectively prolonged.

The invention provides an organic electroluminescence device and a manufacturing method thereof. The organic electroluminescence device comprises a conductive anode substrate, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transmission layer, an electron injection layer and a cathode which are stacked sequentially, wherein the hole injection layer is made of a mixture of rhenium oxide and zinc oxide, the hole injection layer further contains the binder polytetrafluoroethylene, the hole injection layer is of a nanometer netty structure, and the bore diameter of the nanometer netty structure is 100 nm - 150 nm. According to the organic electroluminescence device, the hole transmission layer is manufactured through mixture of rhenium oxide, azo substances, zinc oxide and polytetrafluoroethylene, the binder polytetrafluoroethylene enables the cohesiveness between the hole injection layer and adjacent layers to be improved, decomposition of the azo substances enables the nanometer netty structure of the hole injection layer to be formed, the hole transmission rate and the photoelectric conversion efficiency of the device can be improved, the manufacturing method is simple, and application prospects are good.

The invention provides a compound with mesitylene as a core, a preparation method thereof, and an application of the compound in an organic light-emitting device. The compound of the invention adopts the mesitylene as the core, and the branch chain of the compound includes a triarylamine structure, so the compound has a strong hole transporting ability and a high hole mobility; and the compound also has a role in electron blocking at a suitable LUMO level, so the recombination efficiency of excitons in a light-emitting layer is improved, the efficiency roll-off at a high current density is reduced, the voltage of the device is reduced, and the current efficiency and the lifetime of the device are improved. The three branch chains of the compound of the present invention are radial, and after the material forms a film, the branch chains can be intercrossed to form a highly dense film layer, so the leakage current of the OLED device using the material is reduced, thereby the service life of the device is prolonged.

The invention discloses a compound containing a triarylamine structure, and an organic light-emitting device prepared from the same. The pi conjugation effect in the compound enables the compound to have a very strong hole transport capability, and the high hole transport rate can reduce the initial voltage of the device and improve the efficiency of the organic light-emitting device; the asymmetric triarylamine structure can reduce the crystallinity of molecules, reduce the planarity of the molecules and prevent the molecules from moving on a plane, so that the thermal stability of the molecules is improved; the structure of the compound makes distribution of electrons and holes in a light-emitting layer balanced, and improves the hole injection and transport performances under a proper HOMO energy level; the structure also has an electron blocking layer under a proper LUMO energy level, so the recombination efficiency of excitons in the light-emitting layer is improved; and when thecompound is used as a hole transport layer or an electron blocking layer material of the OLED luminescent device, the triarylamine is matched with the branched chain in the structure, so the exciton utilization rate and the radiation efficiency can be effectively improved.

The invention relates to an organic compound taking a dibenzofuran derivative as a core, and applications thereof, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (1). The invention also discloses a preparation method and applications of the compound. According to the invention, the compound has a high triplet state energy level, can effectively block energy loss, and is beneficial to energy transfer; the dibenzofuran derivative contained in the compound is used as a core, and is matched with a long-chain branch structure, so that the compound has the characteristics of strong rigidity, difficulty in crystallization and aggregation among molecules and good film-forming property; and when the compound is used asthe light-emitting functional layer material of an OLED light-emitting device, the service life and the efficiency of the device can be improved by matching with the branched chains within the rangeof the invention.

The invention belongs to the technical field of semiconductors, and particularly relates to an organic electroluminescent device and an application thereof. The organic electroluminescent device comprises a cathode reflection electrode layer and an ITO anode layer; at least one organic thin film layer is arranged between the cathode reflection electrode layer and the ITO anode layer, and the organic thin film layer contains a compound taking triaminobenzene as a core; the structure of the compound taking triaminobenzene as the core is shown as a general formula (1). The compound takes pyromellitic benzene as a core, has relatively high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and higher Eg, and can effectively improve the photoelectric property of an OLED device and prolong the service life of the OLED device through device structure optimization.

The invention relates to an organic compound using diphenyleneimine as a core as well as a preparation method and application thereof. Through Pi conjugation effect in the compound provided by the invention, the compound has high hollow hole transmission capability; the initial voltage of a device can be reduced through high hollow hole transmission speed; the efficiency of an organic electroluminescence device can be improved. In addition, an unsymmetrical triarylated amine structure can reduce the crystallinity of molecules; the plane performance of the molecules can be reduced; the movementof the molecules on the plane can be prevented, so that the thermal stability of the molecules can be improved. Meanwhile, through a structure of the compound provided by the invention, the distribution of electrons and hollow holes in the luminous layer is more balanced; at the proper HOMO energy stage, the hollow hole injection and transmission performance is improved; at the proper LUMO energystage, the electron blocking effect is achieved, and the compounding efficiency of excitons in a luminous layer is improved; when the compound is used as a luminous function layer material of the OLED luminous device, the diphenyleneimine is matched with the branch chain in the scope of the invention, and the exciton utilization rate and the radiation efficiency can be effectively improved.

The invention discloses a compound taking triarylamine as a core, and a preparation method and an application of the compound, and belongs to the technical field of semiconductors. The compound provided by the invention has the structure represented by a general formula (1). The invention also discloses the preparation method and the application of the compound. The compound provided by the invention has relatively high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and relatively high mobility; and the photoelectric property of an OLED devicecan be effectively improved and the service life of the OLED device can be effectively prolonged by optimizing the structure of the device.

The invention discloses an organic electroluminescence device which comprises a glass substrate, a scattering layer, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transfer layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the scattering layer consists of a ternary doped layer and a ferric salt doped layer; the ternary doped layer comprises titanium dioxide, a magnesium compound material and a light emitting material; the magnesium compound material is selected from at least one of magnesium fluoride, magnesium oxide and magnesium sulfide; the ferric salt doped layer comprises a ferric salt material and an organic silicon micromolecule material doped in the ferric salt material; the ferric salt material is selected from at least one of ferric chloride, ferric bromide and ferric sulfide; the energy gap of the organic silicon micromolecule material is minus 3.5-minus 5.5eV. The organic electroluminescence device disclosed by the invention is relatively high in light emission efficiency. The invention further provides a preparation method of the organic electroluminescence device.

The invention relates to a hole material. The hole material comprises a compound of a structure represented by a formula (I). The hole material has a high transport speed of holes or carriers and excellent electrochemical stability. When the hole material is used as the hole transport material of an OLED, the transport speed of holes and carriers can be improved, the obtained product can be used as a hole injecting material after the hole material is doped with a doping material, and more holes can be obtained; and the device voltage can be reduced, and the efficiency and service life of the device are improved.

The invention relates to an aromatic amine derivative and application thereof, and belongs to the technical field of semiconductors. The structure of the compound is as shown in a general formula (1). The invention also discloses the application of the compound. The compound disclosed by the invention has relatively high hole mobility, proper HOMO energy level, relatively strong film phase state stability and molecular thermal stability, and can effectively prolong the service life of an OLED device and reduce the voltage of the device.