51results about How to "Good electroluminescent efficiency" patented technology

The present invention relates to organic electroluminescent compounds represented by Chemical Formula 1 or 2, a process for preparing the same, and an organic light emitting diode (OLED) which comprises, as a luminescent region interposed between an anode and a cathode, at least one compound (s) selected from those represented by Chemical Formula 1 or 2, and at least one compound selected from anthracene derivatives, benz[a]anthracene derivatives and naphthacene derivatives. The electroluminescent compound according to the present invention is a green electroluminescent compound having maximized electroluminescent efficiency and lifetime of device.

The invention relates to phenanthrene derivatives that have a structure in formula (I) and formula (II), wherein, A is respectively selected from hetero atoms of nitrogen, silicon, oxygen, phosphor and boric and B is respectively selected from phenyl, naphthyl, phenanthreny base, anthracene base, pyrenyl, heterocyclic radical, polycyclic aromatic base and polycyclic heterocyclic radical that at least have a conjugate base. The phenanthrene derivatives of the invention can effectively prevent aggregation among molecules and can improve the injection efficiency of the carriers (electron / cavity) of components and promote photopeak efficiency when being taken as maternal luminous compound of an organic electroluminescence diode.

The invention provides an organic electroluminescence compound containing a quinoxaline perssad. The compound has the good thermal stability, high luminous efficiency and high luminous purity, can be used for manufacturing an organic electroluminescence device and is applied to the field of organic solar cells, organic film transistors or organic photoreceptors. The invention further provides the organic electroluminescence device. The organic electroluminescence device comprises an anode, a cathode and an organic layer. The organic layer comprises one or more of a luminous layer, a hole injection layer, a hole transfer layer, a hole barrier layer, an electron injection layer and an electron transfer layer. At least one organic layer comprises the compound shown in the structural formula I in the specification.

The invention provides an organic electroluminescence compound which is shown as a structural formula I (please see the formula in the description) and contains a 1,2,4-triazine group. The compound has the good heat stability, the high luminous efficiency and the high luminous purity and can be used for manufacturing an organic electroluminescence device and applied to the field of organic solar cells or organic thin film transistors or organic photoreceptors and the like. The invention further provides the organic electroluminescence device. The organic electroluminescence device comprises an anode, a cathode and organic layers, wherein the organic layers comprise one or more than one of a luminous layer, a hole injection layer, a hole transporting layer, a hole blocking layer, an electron injection layer and an electron transporting layer, and at least one of the organic layers contains the compound shown as the structural formula I (please see the formula in the description).

The present invention discloses an “organic light-emitting device (OLED)”, comprising an anode, a cathode, and one or more organic layers, wherein the said organic layer contains at least one compound having the formula (I), and the said OLED has the advantages of excellent light-emitting efficiency, excellent color purity and long lifetime.

The invention provides a phosphorescence main body compound containing indole groups. The compound has better thermal stability, high luminous efficiency and high luminous purity, can be used for manufacturing organic electroluminescent devices, and is applied to the fields of organic solar batteries, organic thin film transistors or organic photoreceptors. The invention also provides an organic electroluminescent device, which comprises an anode, a cathode and an organic layer, wherein the organic layer comprises one layer or more than one layer in a luminous layer, a hole injection layer, a hole transmission layer, a hole blocking layer, an electron injection layer and an electron transmission layer; at least one layer in the organic layer comprises the compound shown as the structural formula I. The structural formula I is shown as the accompanying drawing.

The invention discloses an organic light emitting material with a novel helical structure and shown as the following structural formula and an organic light emitting device thereof. The compound is high in stability and can be used as a phosphorescence host material which is outstanding in performances. The organic light emitting device prepared through the organic light emitting material is high in efficiency and light purity. The formula sees the description.

The invention provides an organic electroluminescent compound based on pyridine and triazine, which has a structure as shown in the specification. The compound has good thermal stability, high luminous efficiency and high luminous purity, and can be used in the fields of manufacturing organic electroluminescent devices, organic solar cells, organic thin film transistors or organic photoreceptors.The invention further provides an organic electroluminescent device comprising at least one of a light-emitting layer, a hole injection layer, a hole transport layer, a hole blocking layer, an electron injection layer, or an electron transport layer, wherein an organic layer comprises a compound shown by a structural formula I, and the organic electroluminescent device has the advantages of good electroluminescent efficiency, excellent color purity and long service life.

The invention provides an organic electroluminescent compound containing quinoxaline group. The compound has good thermal stability, high luminescent efficiency and high luminescent purity, is suitable for manufacturing organic electroluminescent devices and is applicable to the field of organic solar panels, organic thin-film transistors or organic photoreceptors. The invention also provides an organic electroluminescent device, comprising an anode, a cathode and an organic layer, the organic layer contains more than one of a luminescent layer, a hole injection layer, a hole transport layer, a hole blocking layer, an electron injection layer and an electron transport layer, and at least one layer in the organic layer contains the compound shown as in the following structural formula I.

The present invention provides a novel organic electroluminescent compound as shown in formula I. With good thermal stability, high luminous efficiency, and high luminous purity, the compound can be used to manufacture an organic electroluminescent device applying to the field of an organic solar cell, an organic thin film transistor or an organic photoreceptor. The present invention also provides an organic electroluminescent device. The device comprises an anode, a cathode and an organic layer, wherein the organic layer comprises one or more of a light emitting layer, a hole injection layer, a hole transport layer, a hole blocking layer, an electron injection layer, and an electron transport layer. At least one layer of the organic layer contains the compound as showm in formula I. The formula I is as shown in the specification.

The invention provides a fluorene-based hole transport compound with a structural formula (I) as shown in the specification. The compound has relatively good thermal stability, high luminous efficiency and high luminous purity, can be used for making organic light-emitting devices and is applied to the fields of organic solar cells, organic thin-film transistors or organic photoreceptors.

The invention provides an anthracene-based organic electroluminescent electron transport compound. The compound has relatively good heat stability, high light-emitting efficiency and high light-emitting purity, can be used for manufacturing an organic electroluminescent apparatus, and is applied to the field of the organic electroluminescent apparatus, an organic solar battery, an organic film transistor or an organic photoreceptor. The invention also provides the organic electroluminescent apparatus which comprises an anode, a cathode and an organic layer; the organic layer comprises at least one of a light-emitting layer, a cavity injection layer, a cavity transport layer, a cavity barrier layer, an electron injection layer and an electron transport layer, and the at least one of the organic layers comprises a compound as shown in a structural formula I in the description.

The invention provides an organic electroluminescent electron transport compound containing [1,2,4]-triazole [1,5-a] pyridine. The compound has relatively good heat stability, high electroluminescent efficiency and high electroluminescent purity, can be used for preparing an organic electroluminescent device, and is applied to the field of an organic solar cell, an organic thin-film transistor or an organic photoreceptor. The invention further provides an organic electroluminescent device, which comprises an anode, a cathode and an organic layer, wherein the organic layer comprises at least one layer of a electroluminescent layer, a hole injection layer, a hole transport layer, a hole barrier layer, an electron injection layer and an electron transport layer; and the at least one layer of the organic layer contains a compound as shown in a structural formula I. The structural formula I is as shown in the specification.

The invention provides an organic electroluminescence compound containing benzonaphthofuran. The organic electroluminescence compound has a structural formula as follows (shown in the description). The organic electroluminescence compound has the advantages that the thermal stability is better, the light emitting efficiency is high, and the light emitting purity is high; the organic electroluminescence compound can be applied into the fields of organic electroluminescence devices, organic solar batteries, organic film transistors or organic photoreceptors. The invention also provides an organic electroluminescence device. The organic electroluminescence device comprises an anode, a cathode and an organic layer, wherein the organic layer comprises at least one of a light emitting layer, a hole injection layer, a hole transmission layer, a cavity blocking layer, an electron injection layer and an electron transmission layer; the organic layer at least comprises one layer of compound shown in a structure formula I. The organic electroluminescence device prepared by the organic electroluminescence compound has the advantages that the electroluminescence efficiency is good, the color purity is excellent, and the service life is long.

The invention provides an organic electroluminescence device. The organic electroluminescence device comprises an anode, a cathode and an organic layer; the organic layer comprises one or more of a hole injection layer, a hole transmission layer, a lighting layer, a barrier layer, an electron injection layer and an electron transmission layer. The organic electroluminescence device is characterized in that at least one layer in the organic layer contains a compound as shown in the structural formula (I). Structural formula is as shown in specification.

The invention provides an organic electroluminescent compound based on benzo[b] naphtha[1,2-d]furan. The compound has relatively good thermal stability, high light-emitting efficiency and high light-emitting purity, can be used for manufacturing an organic electroluminescent apparatus, and is applied to the field of an organic solar battery, an organic film transistor tube or an organic photoreceptor. The invention also provides the organic electroluminescent apparatus which comprises an anode, a cathode and an organic layer. The organic layer comprises at least one of a light-emitting layer, a hole injection layer, a hole transmission layer, an exciton block layer and an electron transmission layer, and at least one of the organic layer comprises a compound as shown in a structural formula I.

The invention provides a carbazole organic electroluminescent compound, which has a structure shown as the specification. The compound has good thermal stability, high luminous efficiency, high luminous purity and low driving voltage, can be used for making organic light-emitting devices, and cab be applied to organic light-emitting devices, organic solar cells, perovskite cells, organic thin filmtransistors, organic photoreceptors and other fields. The invention also provides an organic light-emitting device, which comprises an anode, a cathode and an organic layer, the organic layer includes at least one of a luminescent layer, a hole injection layer, a hole transport layer, an exciton barrier layer and an electron transport layer, and includes a compound shown as structural formula I.The organic light-emitting device has the advantages of good electroluminescence efficiency, excellent color purity and long lifetime.

The invention provides a dicarbazole benzene derivative. The dicarbazole benzene derivative adopts the structural formula as follows: FORMULA; the dicarbazole benzene derivative has relatively good stability, and can be applied to the field of organic electroluminescent devices, organic solar cells, organic thin film transistors or organic photoreceptors; when the dicarbazole benzene derivative isapplied to the organic electroluminescent device, the working voltage can be reduced and the device efficiency can be improved, so that the dicarbazole benzene derivative is a luminescent material with excellent performance. The invention further provides the organic electroluminescent device. The organic electroluminescent device comprises an anode, a cathode and an organic layer, wherein the organic layer comprises at least one of a luminescent layer, a hole injection layer, a hole transport layer, a hole blocking layer, an electron injection layer and an electron transport layer; at leastone layer in the organic layer contains a compound shown as the structural formula I. The organic electroluminescent device prepared from the dicarbazole benzene derivative has relatively high luminescent efficiency and light purity.

The invention provides a bis-tri-aromatic amine compound containing a spiral structure. The compound has the structural formula as shown in the figure I in the specification. The compound has relatively good heat stability, high light-emitting efficiency and high light-emitting purity and can be applied to the field of organic light emitting diodes, organic solar cells, organic thin film transistors or organic photoreceptors. The invention further provides an organic light emitting diode. The organic light emitting diode comprises an anode, a cathode and an organic layer, the organic layer comprises at least one of a light-emitting layer body, a hole injection layer body, a hole transmission layer body, a hole blocking layer body, an exciton blocking layer body and an electron transmissionlayer, and at least one layer body of the organic layer contains the compound with the structural formula as shown in the figure I in the specification. The organic light emitting diode prepared by adopting the compound has the advantages of being good in light-emitting efficiency, excellent in color purity and long in service life.

The present invention discloses an “organic light-emitting device (OLED)”, comprising an anode, a cathode, and one or more organic layers, wherein the said organic layer contains at least one compound having the formula (I), and the said OLED has the advantages of excellent light-emitting efficiency, excellent color purity and long lifetime.

The invention provides a pyrazolopyrimidine compound which has the following structural formula as shown in the specification. The pyrazolopyrimidine compound has higher thermostability and high luminous efficiency and luminous purity, and can be applied to the field of organic electroluminescent devices, solar batteries, organic thin film transistors and organic photoreceptors. The invention further provides an organic electroluminescent device which comprises an anode, a cathode and an organic layer, wherein the organic layer comprises at least one of a luminous layer, a hole injection layer, a hole transmission layer, a hole barrier layer, an electron injection layer and an electron transmission layer; at least one layer of the organic layer comprises the pyrazolopyrimidine compound shown as structural formula I; and the organic electroluminescent device manufactured by the pyrazolopyrimidine compound has high efficiency and light purity.

The invention provides a fluorene-containing triarylamine compound. The fluorene-containing triarylamine compound has the following structural formula: (as described in the specification); and the compound has good thermal stability, high luminous efficiency and high luminous purity, and can be applied to the fields of organic electroluminescent devices, solar cells, organic thin film transistorsor organic photoreceptors. The organic electroluminescent devices made of the fluorene-containing triarylamine compound have the advantages of good electroluminescent efficiency, excellent color purity and long service life.

The invention provides an iridium complex with the structural formula shown in the specification. The iridium complex has better heat stability, high luminous efficiency and high luminous purity and can be applied to the fields of OLEDs (organic light-emitting devices), organic solar cells, organic film transistors or organic photoreceptors. The invention also provides an OLED. The device comprises an anode, a cathode and an organic layer, wherein the organic layer comprises at least one of a light-emitting layer, a hole injection layer, a hole transfer layer, a hole barrier layer, an electroninjection layer and an electron transfer layer, at least one layer in the organic layer contains a compound shown in structural formula I. The OLED produced from the iridium complex has the advantages of good electroluminescence efficiency, excellent color purity and long service life.

The invention provides an organic electroluminescence compound based on imidazole and pyridazine. The organic electroluminescence compound has the following structure as shown in the description. Thecompound has relatively good heat stability, high luminescence efficiency and high luminescence purity and can be applied to the organic electroluminescence devices, organic solar cells, organic thin-film transistors or organic photoreceptors. The invention also provides an organic electroluminescence device. The device comprises an anode, a cathode and an organic layer, wherein the organic layercomprises at least one luminescence layer, a hole injection layer, a hole transport layer, a hole barrier layer, an electron injection layer and an electron transport layer, and at least one layer ofthe organic layers comprises the compound of the structural formula I. The organic electroluminescence device produced by adopting the organic electroluminescence compound has the advantages of good electroluminescence efficiency, excellent color purity and long service life.

The invention relates to an organic electroluminescent device which comprises an anode, a cathode and an organic layer. The organic layer is one or a plurality of layers selected from hole injection layer, hole transmission layer, electron injection layer, electron transmission layer and light emitting layer and at least comprises the light emitting layer. The light emitting layer has a host-guest doped system which is composed of a host material and a guest material. The light emitting area of the light emitting layer is blue, and the thickness of the light emitting area is 440-470nm. The host material or the guest material contains a compound of which the structure is represented in a formula (I). The organic electroluminescent device has advantages of high light emitting efficiency, excellent color purity, and long service life.

The invention provides a heterocyclic organic electroluminescence compound with the formula as is shown in the description. The compound is good in thermal stability, high in luminous efficiency and luminous purity and applicable to the fields of organic electroluminescence devices, organic solar cells, organic thin-film transistors or organic photoreceptors. The invention further provides the organic electroluminescence device which comprises an anode, a cathode and organic layers, the organic layers include at least one of a luminescent layer, a hole injection layer, a hole transport layer, a hole blocking layer, an electron injection layer and an electron transfer layer, and at least one layer in the organic layers contains the compound with the formula I as is shown in the description. The organic electroluminescence device produced from the heterocyclic organic electroluminescence compound has the advantages of good electroluminescence efficiency and color purity and long service life.

The invention provides a nitrogen heterocyclic compound with a structural formula shown in the description. The nitrogen heterocyclic compound has better heat stability, high light-emitting efficiencyand high light-emitting purity and can be applied to the fields of OLEDs (organic light-emitting devices), organic solar cells, organic thin film transistors or organic light sensors. The invention also provides an OLED. The OLED comprises an anode, a cathode and organic layers, wherein the organic layers comprise at least one of a light-emitting layer, a hole injection layer, a hole transmissionlayer, a hole barrier layer, an electron injection layer and an electron transmission layer. At least one of the organic layers contains the heterocyclic compound shown in a structural formula I. TheOLED prepared from the nitrogen heterocyclic compound has the advantages of good electroluminescence efficiency, excellent color purity and long service life.

The invention relates to an organic electroluminescent device which comprises an anode, a cathode and an organic layer. The organic layer is one or a plurality of layers selected from hole injection layer, hole transmission layer, electron injection layer, electron transmission layer and light emitting layer and at least comprises the light emitting layer. The light emitting layer is composed of a single compound of which the structure is represented by a formula (I). The organic electroluminescent device emits blue light and has advantages of high light emitting efficiency, excellent color purity, and long service life.

The invention provides an organic electroluminescence compound with a screw structure. The compound has relatively good heat stability, high luminous efficiency and high luminous purity, can be used for manufacturing organic electroluminescence devices and is applied to the fields of the organic electroluminescence devices, organic solar cells, organic thin-film transistors or organic light sensors. The invention also provides an organic electroluminescence device which comprises a positive pole, a negative pole and an organic layer, wherein the organic layer comprises at least one of a luminous layer, a hole injection layer, a hole transporting layer, a hole blocking layer, an electron injection layer and an electron transporting layer, wherein at least one layer of the organic layer comprises the compound as shown in the structural formula I.

The invention provides a carbazole pyridine derivative, which has the following structure formula shown in the description. The carbazole pyridine derivative has better thermal stability, and can be applied to the fields of an organic electroluminescence device, an organic solar battery, an organic film transistor or an organic light sensor. When the carbazole pyridine derivative is used for the organic electroluminescence device, the work voltage can be reduced; the device efficiency can be improved; the material is a phosphorescence main body material with excellent performance. The invention also provides the organic electroluminescence device, which comprises a positive electrode, a negative electrode and an organic layer, wherein the organic layer comprises at least one of a luminouslayer, a hollow hole injection layer, a hollow hole transmission layer, a hollow hole blocking layer, an electronic injection layer and an electron transmission layer; at least one of the organic layers comprises the compound shown by the structure formula I. The organic electroluminescence device manufactured by using the carbazole pyridine derivative has the advantages of good electroluminescence efficiency, excellent color purity and long service life.