158results about How to "Destroy crystallinity" 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 an azaxanthone compound and applications of the azaxanthone compound in organic electroluminescent devices. According to the present invention, the azaxanthone compound uses azaxanthone as the core, the molecules are not easily crystallized and are not easily aggregated, and the azaxanthone compound has good film forming property; and with the application of the azaxanthone compound as the light emitting layer main material of the OLED light emitting device, the current efficiency, the power efficiency and the external quantum efficiency of the device are greatly improved, and the service life of the device can be remarkably improved.

The invention discloses a compound taking anthrone as a core and an application of the compound in an OLED device. The compound takes anthrone as a parent core, which is connected with a heterocyclic aromatic group to destroy molecular symmetry, so that molecular crystallinity is destroyed, aggregation effect among the molecules can be avoided, and the compound has good film forming ability. The compound as a luminescent layer material is used on an organic light-emitting diode, the OLED device using the compound has good photoelectric performance, so that the requirement by a panel manufacture enterprise can be satisfied.

The invention discloses a compound with pyridine as a core and application thereof in an organic electroluminescence device. The compound has the advantages that molecules are not prone to crystallization or aggregation and have a good film-forming property. By means of rigid groups in the compound molecules, thermostability of the material can be improved, the compound can be used as a luminescent layer material applied to an OLED, and a manufactured OLED device has high photoelectric property and can meet the requirement of a panel manufacturing enterprise better.

The invention relates to a boron-containing organic compound and application thereof to an organic light-emitting device, belonging to the technical field of semiconductors. The structure of the boron-containing organic compound is shown as a general formula (1). The invention also discloses the application of the boron-containing organic compound in an organic electroluminescent device. Accordingto the boron-containing organic compound, the whole molecule of the compound is of a large rigid structure, the planarity of a material is reduced through introduction of substituent groups, the steric hindrance of the material is increased, the material is not prone to rotation, a three-dimensional space structure is more stable, and therefore, the compound has high glass transition temperatureand molecular thermal stability; in addition, the HOMO and LUMO distribution positions of the compound are separated from each other, so the compound has appropriate HOMO and LUMO energy levels. Therefore, after the compound is applied to the OLED device, the luminous efficiency of the device can be effectively improved, and the service life of the device can be effectively prolonged.

The invention discloses an organic electroluminescent device taking anthracene as core compound, and applications thereof. The organic electroluminescent device taking anthracene as core compound comprises a cavity transmission layer, a luminescent layer, and an electron transmission layer; and anthracene is taken as the core compound. Anthracene is combined with a branch chain structure represented by general structure (2), so that it is convenient for energy transmission among host and guest materials, and device high efficiency can be achieved easily; and in addition, the core compound possesses relatively high glass transition temperature and molecule heat stability, and appropriate HOMO and LUMO energy level, device structure optimization is capable of improving OLED device photoelectric properties and prolonging OLED device service life effectively.

The present invention discloses an organic compound with a ketone structure as a mother nucleus and application thereof in an organic electroluminescent device, the organic compound has the characteristics that Delta Est< 0.2 eV, and a 2.7 eV< T1< 3.0 eV, the organic compound is connected with aromatic heterocyclic groups for destruction of molecular symmetry, molecular crystallinity is destructed, intermolecular aggregation can be avoided, and the organic compound has good film-forming properties. When the organic compound is used as an emitting layer material of an organic light-emitting diode, the OLED device using the compound has good photoelectric properties and can meet the requirements of panel manufacturing enterprises.

The invention relates to a compound taking triazine as a core and application thereof on an organic electroluminescence device thereof. The compound takes the triazine as the core, and has the characteristics of being difficult to crystallize among molecules, difficult to gather and excellent in film-forming property. When the compound disclosed by the invention is used as a luminous layer material of the organic electroluminescence device, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved. Meanwhile, the compound has a very obvious effect of prolonging the life of the device.