126results about How to "Improve fluorescence radiation efficiency" patented technology

The invention discloses a dimethylanthracene-containing compound and an application of the dimethylanthracene-containing compound on an organic electroluminescent device. A structural general formula of the organic compound is shown as a general formula (1). The compound has high glass transition temperature and molecular thermal stability, and appropriate HOMO and LUMO energy level and high Eg, by optimizing a device structure, the photoelectric property of the OLED device and the life of the OLED device are effectively increased.

The invention discloses a compound based on xanthone and application thereof. The compound uses xanthone as a parent nucleus, which is connected to a heteroaromatic group, so as to destroy the molecular symmetry, and thus further destroy the crystallinity of molecules and avoid the aggregation between molecules. The compound based on xanthone has good film-forming property, and can be applied to organic light emitting diode as a luminescent layer; and the OLED device using the compound based on xanthone has good photoelectric property, and can meet the requirements of panel manufacturing enterprises.

The invention discloses an organic compound containing xanthene and an application thereof. A structural general formula of the organic compound is shown as a general formula (1). The vitrification temperature of the organic compound is high, the molecular thermal stability is strong, the organic compound has appropriate HOMO and LUMO energy level and high Eg, and the photoelectric property of an OLED device and life of the OLED device are effectively increased through optimization of a device structure.

The invention discloses an organic compound with xanthene as a core and a use thereof. The organic compound has a general structural formula (1). The compound has a high glass transition temperature and molecular thermal stability, is suitable for HOMO and LUMO energy levels, has high Eg, and can effectively prolong the photoelectric performances of an OLED device and a service life of the OLED device through device structure optimization.

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 discloses an organic compound with xanthene and application thereof in OLED (organic LED) devices; the organic compound has a structural general formula shown as in formula (1). The organic compound provided herein has high vitrification temperature and high molecular thermal stability, has suitable HOMO and LUMO energy levels and high Eg, and by optimizing device structure, it is possible to effectively improve photoelectric properties of OLED devices and prolong the lives of the OLED devices.

The invention relates to a pyrene-containing organic compound and application in OLED, and belongs to the technical field of semiconductors, wherein the 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 used asa functional layer material of an OLED light-emitting device, exciton utilization rate and high fluorescence radiation efficiency can be effectively improved, efficiency roll-off under high current density is reduced, device voltage is reduced, current efficiency of the device is improved, and service life of the device is prolonged.

The invention discloses a compound taking fluorene as a core, and a preparation method and an application thereof, and belongs to the technical field of semiconductors. The compound provided by the invention has the structure represented by a general formula (I). The invention also discloses the preparation method and the application of the compound taking fluorene as the core. The compound provided by the invention contains fluorene derivatives and six-membered ring derivative structures, has relatively high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and relatively high 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 organic compounds using homobenzenes as a core and application thereof in OLED (organic light-emitting diode) devices. The compounds have higher glass transition temperature, higher molecular heat stability, appropriate HOMO and LUMO energy levels and higher Eg. The device structure is optimized, thereby effectively enhancing the photoelectric properties of the OLED devices and prolonging the service life of the OLED devices.

The invention discloses a compound with an aza-spirofluorene structure as a mother nucleus and an application of the compound on organic electroluminescent devices. According to the compound, the aza-spirofluorene structure is used as a nucleus, and the compound has the characteristics of difficult crystallization and difficult gathering among molecules and excellent film-forming property. When the compound is used as a luminescent layer material or an electron barrier layer material of an organic electroluminescent device, current efficiency of the device is greatly improved; and meanwhile, the service life of the device is remarkably improved.

The invention discloses a compound containing an aza-5-membered ring and an application thereof in organic electroluminescent devices. The compound is composed of the aza-5-membered ring, has deep HOMO energy level and high hole mobility rate, and is suitable for electronic barrier materials. In addition, the compound has strong group rigidity, has molecules difficult to crystallize and gather, and has good film-forming property. After the compound as an organic electroluminescent functional layer material is applied in OLED devices, the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved, and the lifetime of the devices is significantly prolonged.

The invention discloses a fluorene-containing compound and an application thereof. The compound has the structure shown in the general formula (1). The compound has higher glass transition temperatureand molecular heat stability, proper HOMO and LUMO energy levels and higher Eg, the photoelectric property of an OLED (organic light emitting diode) device can be effectively improved and the servicelife of the OLED device can be effectively prolonged through structure optimization of the device.

The invention discloses a compound based on disubstituted-9-fluorenone and application thereof. The compound takes disubstituted-9-fluorenone as a mother nucleus, and two sides of disubstituted-9-fluorenone are connected with two aromatic heterocyclic groups, so that the crystallization of molecules is destroyed, aggregation between the molecules is avoided, and excellent film forming property is achieved. When applied to an OLED as a luminescent layer material, the compound has favorable photoelectric property.

The invention discloses an organic compound with fluorene as a main body and an organic electroluminescent device. The organic compound with fluorene as a main body has a high glass transition temperature and strong molecular thermal stability, has appropriate HOMO and LUMO energy levels and has high Eg. Through device structure optimization, the photoelectric performances of the OLED device are effectively improved and the life of the OLED device is effectively prolonged.

The invention discloses a fluorene-containing organic compound and an application thereof on an OLED (organic light emitting diode) device. The organic compound has the structure shown in the generalformula (1). The compound has higher glass transition temperature and molecular heat stability, proper HOMO and LUMO energy levels and higher Eg, the photoelectric property of an OLED device can be effectively improved and the service life of the OLED device can be effectively prolonged through structure optimization of the device.

The invention discloses compounds taking xanthene as a core and an application of the compounds in organic electroluminescent devices. The compounds have proper molecular energy level, excellent thermal stability and film stability and are suitable for being applied to the field of organic electroluminescence as functional layers of the organic electroluminescent devices.

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 relates to organic compounds using homobenzenes as a core and application thereof in OLED (organic light-emitting diode) devices. The compounds have higher glass transition temperature, higher molecular heat stability, appropriate HOMO and LUMO energy levels and higher Eg. The device structure is optimized, thereby effectively enhancing the photoelectric properties of the OLED devices and prolonging the service life of the OLED devices.

The invention discloses a compound taking carbazole as a core, and applications thereof in organic light-emitting devices. The structure of the compound is represented by formula I, is relatively highin glass transition temperature and molecular heat stability, possesses appropriate HOMO and LUMO energy level, and relatively high Eg, and is capable of improving the photoelectric properties of OLEDs and prolonging the service life of OLEDs through device structure optimization.

The invention relates to a compound with spirofluorene as a core, a preparation method thereof, and an application of the compound in an organic light-emitting device. The spirofluorene is adopted as the core of the compound, and is connected with an electron-donating group and an electron-withdrawing group in order to easily achieve electron blocking, so the high efficiency of the device can be easily obtained. The compound provided by the invention has a high glass transition temperature, a high molecular thermal stability, a suitable HOMO emerge level and a suitable LUMO energy level, and can effectively improve the photoelectric performances of the OLED and the lifetime of the OLEs by device structure optimization.

The invention relates to an organic compound shown in the general formula (I) and application thereof on electroluminescent devices. The compound has relatively high vitrification temperature and molecular heat stability, proper HOMO and LUMO energy levels and relatively high Eg. By means of device structural optimization, the photoelectric performance of an OLED device can be effectively improved, and the service life of the OLED device can be effectively prolonged. The general formula (I) is shown in the description.

The invention relates to a compound taking spirofluorene anthrone as a core, a preparation method and applications thereof, wherein the structure of the compound is formed by linking spirofluorene anthrone to a five-membered ring fused ring structure, and the whole molecule is a large rigid structure and has a high triplet state energy level (T1). According to the invention, the compound is high in structural stereoscopicity, large in steric hindrance and not easy to rotate, so the chemical stability of the material is improved, and the compound has high glass transition temperature and high molecular thermal stability; the HOMO distribution position and the LUMO distribution position of the compound are separated from each other, so that the compound has appropriate HOMO and LUMO energy levels; and with the application of the compound in an OLED device, the light emitting efficiency and the service life of the device can be effectively improved.

The invention discloses compounds taking xanthone as a core and application of the compounds, and belongs to the technical field of semiconductors. The structure of the compounds provided by the invention is shown as a general formula (1) shown in the description. The compounds have a xanthone mother nucleus structure, have relatively high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and relatively high Eg, and can effectively improve the photoelectric properties of an OLED device and prolong the service lifetime of the OLED device by optimizing the device structure.

The invention relates to organic compounds using fluorene as a core, a preparation method of the compounds and an application of the compounds in an organic light emission diode (OLED) device. The compounds have a following structure: the fluorene is connected with a dibenzo five-membered ring and ring structure through a carbon-carbon bond, the carbon-carbon bond connection not only improves the chemical stability of the material, but also avoids exposure of active positions of a branched chain group, and the whole molecule is a larger rigid structure and has a higher triplet state energy level (T1); the compounds have large steric hindrance, are not easy to rotate, and have a more stable stereoscopic space structure, so that the compounds have a higher glass transition temperature and molecular thermal stability; in addition, HOMO and LUMO distribution positions of the compounds are separated from each other, so that the compounds have suitable HOMO and LUMO energy levels; therefore, the compounds can effectively improve the luminous efficiency and the service life of the device after being applied to the OLED device.

The invention discloses a compound taking an olefinic bond-containing seven-membered ring as a core, and application of the compound, wherein the structure of the compound is represented by a generalformula (1). The compound provided by the invention has high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and high Eg, and by optimizing the devicestructure, the photoelectric property of an OLED device can be effectively improved, and the service life of the OLED device can be effectively prolonged.

The invention discloses a compound taking diphenyl cycloheptene as a core and an application thereof in an organic light-emitting device. The diphenyl cycloheptene is used as a mother core of the organic compound and is connected with a triarylamine group or a nitrogenous poly-heterocyclic aromatic base through a phenyl group, a biphenyl group or a naphthyl group. The compound disclosed by the invention has higher glass transition temperature and molecular thermal stability, is suitable for HOMO and LUMO energy levels and is higher in Eg. Through the optimization for the device structure, the photoelectric property of an OLED device can be effectively promoted, and the service life of the OLED device can be effectively prolonged.

The invention discloses an organic compound and an application thereof to an OLED (organic light emission diode) device. The organic compound contains dibenzo six-membered rings, and oxygen atoms, sulfur atoms, C1-10 linear or branched alkyl substituted alkylidene, aryl substituted alkylidene and alkyl or aryl substituted tertiary amide are contained between the two dibenzo six-membered rings. Thecompound has higher glass transition temperature and molecular thermal stability and appropriate HOMO and LUMO energy level, and photoelectric property of the OLED device can be effectively improvedand the service life of the OLED device can be effectively prolonged through structural optimization of the device.

The invention discloses a compound taking spirofluorene anthrone as a core, a preparation method and applications thereof, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (I). The invention further discloses a preparation method and applications of the compound. According to the invention, spirofluorene anthrone is linked to a six-membered ring fused ring derivative structure, and the whole molecule has a large rigid structure and has a high triplet state energy level (T1); the compound is high in structural stereoscopicity, large in steric hindrance and not easy to rotate, so the chemical stability of the material is improved, and the compound has high glass transition temperature and high molecular thermal stability; the HOMO distribution position and the LUMO distribution position of the compound are separated from each other, so that the compound has appropriate HOMO and LUMO energy levels; and with theapplication of the compound in an OLED device, the light emitting efficiency and the service life of the device can be effectively improved.

The invention discloses a compound taking 10,10-diaryl substituted anthranone as a mother nucleus and application of the compound to an organic electroluminescent device. The compound takes 10,10-diaryl substituted anthranone as the mother nucleus, and therefore has the characteristics that the probabilities of crystallization and clustering between molecules are low and the film-forming property is favorable. When the compound serves as a luminescent layer material of an OLED luminescent device, the manufactured OLED device has favorable photoelectric property.

The invention relates to a xanthenes organic compound and application thereof to OLED (Organic Light Emitting Diode). According to the structure of the compound, xanthenes are connected with a carbazole cyclic structure through carbon-carbon bonds. Due to carbon-carbon connection, the chemical stability of a material is improved, living position exposure of branch chain groups is avoided, and the whole molecules are of a relatively large rigid structure, and a high triplet state energy stage (T1) is achieved; in addition, large steric hindrance is achieved, rotation is not easily caused, and a relatively stable three-dimensional structure is achieved, so that the compound has relatively high glass transition temperature and molecular thermal stability; in addition, distribution positions of HOMO (Highest Occupied Molecular Orbital ) and LUMO (Lowest Unoccupied Molecular Orbital) of the compound provided by the invention are separated from each other, so that appropriate HOMO and LUMO energy grades are achieved; therefore, after the compound provided by the invention is applied to an OLED device, the light emission efficiency of the device is improved, and the service life of the device is prolonged.