40results about How to "Efficient Luminescence" patented technology

The invention discloses an iridium complex and an organic light emitting device thereof and relates to the technical field of organic photoelectric materials. The iridium complex is of a structure asshown in the formula (I). Due to an electron-rich double-nitrogen coordination structure in the iridium complex structure, trivalent metal cation in the center can be beneficially stabilized, and meanwhile, electron cloud distribution on the metal iridium can be affected, so that photoelectric properties of whole complex molecules can be greatly influenced; and in addition, a four-membered ring formed by ligand of the double-nitrogen coordination structure and the metal has rigidity, unexpected vibration energy loss can be favorably reduced, and high-efficiency light emission properties can beachieved. By adjusting substitution groups, the complex is good in thermal stability and chemical property. The iridium metal organic complex can be prepared into a device and can be particularly used as a doping material, and the device has the advantages of being low in driving voltage and high in light emission efficiency and is prior to conventional common OLEDs (Organic Light Emitting Devices).

The invention discloses a metal-containing organic complex and an OLED (organic light-emitting diode) device comprising the same and relates to the technical field of organic optoelectronic materials.The structure comprises a first ligand and an auxiliary ligand, wherein the first ligand solves the problem of roll-off of the efficiency of the device at high-current density by introducing large pai conjugated structures and steric hindrance groups; an electron-rich double-nitrogen coordination structure in the auxiliary ligand is favorable for stabilizing central trivalent metal ions, meanwhile, distribution of electron clouds on iridium can also be affected, and further, a great influence is produced on the photoelectric property of the whole complex molecule; a four-membered ring formedby the ligand adopting the double-nitrogen coordination structure and metal has higher rigidity, accordingly, unnecessary vibration energy loss is favorably reduced, and the efficient light emitting performance is realized. The complex has better heat stability and chemical properties by adjusting substituent groups. The metal-containing organic complex particularly as a doping material is prepared into the device, and the device has the advantages of low driving voltage and high light emitting efficiency and is superior to existing common OLED devices.

The present invention relates to a pyrene derivative for an organic light-emitting element, a light-emitting element material containing the pyrene derivative, and a light-emitting element, and more specifically, to a soluble organic compound having excellent color purity and high brightness and light-emitting efficiency, and an OLED device using the same. Compounds are characterized by being represented by general formula (1).

The invention provides an iridium-containing metal complex and an organic light-emitting device thereof. The iridium-containing metal complex has a structure as shown in formula (I), and the structurecomprises a first ligand and an auxiliary ligand, wherein an electron-rich dinitrogen coordination structure in the auxiliary ligand structure is favorable for stabilizing central trivalent metal cations. Meanwhile, electronic cloud distribution on metal iridium is influenced, the photoelectric property of the whole complex molecule is greatly influenced, the four-membered ring formed by the ligand of the dinitrogen coordination structure and metals has high rigidity, unnecessary vibration energy losses are reduced, and an efficient luminescence property is realized. By regulating substituentgroups, the complex has excellent heat stability and chemical properties. The iridium-containing metal complex is prepared into devices, and particularly serves as a doped material. The device has the advantages of low driving voltage and high luminous efficiency, and is better than the existing common OLED (Organic Light-Emitting Device).

The invention relates to an organic compound and an organic light-emitting device using the same, and more specifically relates to a soluble organic compound having excellent color purity and high luminance and light-emitting efficiency, and an OLED device using the same. The structure of the organic compound provided by the invention is shown as a formula 1 in the description. In the structural formula, Ar1 and Ar2 are independently selected from substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C10-C30 condensed ring group, substituted or unsubstituted C8-C30 heteroaryl, substituted or unsubstituted C13-C30 amine derivative or fluorene derivative; and X1 represents carbon (C) or nitrogen (N).

The invention discloses a complex and an OLED (organic light emitting device), and relates to the technical field of an organic photoelectric material. Fused ring carbazole derivatives in the complexstructure has high triplet state energy level, high rigidity and great molecular weight; the complex has high stability; meanwhile, an electron-rich dinitrogen coordination structure is favorable forstabilizing center trivalent metal positive ions; the electron cloud distribution on metal iridium can be influenced; further, great influence can be generated on the photoelectric property of the whole complex molecule; a four-membered ring formed by a ligand of the dinitrogen coordination structure and metal has higher rigidity; the unnecessary vibration energy loss is favorably reduced; the efficient light emitting performance is realized. By regulating substitutional groups, the complex has better heat stability and chemical property. The complex is prepared into a device and is particularly used as a doping material; the device shows the advantages of low driving voltage and high light emitting efficiency, and is superior to the existing common OLED device.

The invention provides an organic compound and an organic light-emitting device using the same, and particularly relates to a soluble organic compound with excellent color purity and high brightness and luminous efficiency and an OLED device using the same. The structure of the organic compound provided by the invention is as shown in formula 1 shown in the specification, in the structural formula, one of Ar1 and Ar2 is a substituted or unsubstituted C4-C90 heteroaryl group, heterocyclic group containing nitrogen (N) or amine series group, and the other one is a substituted or unsubstituted C6-C90 heteroaryl group or heterocyclic group containing two or more nitrogen atoms; and Ar3 is a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C10-C30 fused ring group, a substituted or unsubstituted C4-C30 heteroaryl group, a substituted or unsubstituted C13-C30 amine derivative or fluorene derivative.

The invention provides synthesis of a binuclear liquid crystal polarized cyclometalated platinum complex by using 2,7-bi[4'-(4''-alkoxymethyl-2''-pyridine)-phenyl]-9,9-bi(dodecyl) fluorene as cyclomedtalating ligand and bi[(4-dodecoxy) benzoyl]methane as anionic ligand, and research of polarized fluorescence and liquid crystal performance thereof. In the method, alkoxymethyl is introduced to the 5-position of a pyridine ring of the traditional cyclomedtalating ligand 2-phenylpyridine molecule; a C N cyclomedtalating ligand of double alkoxy chain with dual coordination center and liquid crystal performance through fluorene bridge connection is constructed; a novel binuclear cyclometalated platinum complex is synthesized by using the bi[(4-dodecoxy) benzoyl]methane as the anionic ligand andthe 2,7-bi[4'-(4''-alkoxymethyl-2''-pyridine)-phenyl]-9,9-bi(dodecyl) fluorene liquid crystal material as the cyclomedtalating ligand. Compared with the traditional cyclometalated platinum luminescence material using the functional phenylpyridine as the cyclomedtalating ligand, the binuclear liquid crystal polarized cyclometalated platinum complex not only has high-efficiency luminescence performance, but also has good liquid crystal performance and polarized fluorescence performance. The binuclear liquid crystal polarized cyclometalated platinum complex of the invention provides a new way for obtaining the organic electrophosphorescent material with liquid crystal polarization.

The invention discloses an organic iridium-containing metal complex and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. An electron-rich bis-nitrogen coordination structure in a complex structure is favorable for stabilizing a central trivalent iridium ion, a ligand of the bis-nitrogen coordination structure and a quaternary ring composed of metal have stronger rigidity, so that higher chemical stability and thermal stability are obtained, and the luminous efficiency of the complex is improved. The synthesis is simple and easy tooperate, and the organic iridium-containing metal complex can be applied to the organic light-emitting device as a light-emitting layer doped material, and can effectively solve problems of low luminous efficiency and high driving voltage in the organic light-emitting device. The iridium complex is prepared into a device, especially as a doped material, and the device exhibits the advantages of low driving voltage and high luminous efficiency, and is superior to existing OLED devices.

The invention protects an illuminating device, comprising: a laser light source, used for emitting excitation light; a wavelength conversion device, arranged on the optical path of the excitation light, for absorbing at least part of the excitation light, and emitting the stimulated light and the untreated light Absorbed excitation light, the wavelength conversion device includes a light conversion element, the light conversion element is a single crystal or transparent ceramics, and the light conversion element includes an incident surface, an exit surface and a side surface; a diffuse mirror is arranged on the light On the optical axis of the conversion element, it is used to reflect the unabsorbed excitation light and expand its light divergence angle; the received light emitted by the wavelength conversion device combines with the excitation light emitted by the diffuse mirror to become the Emitting light from the lighting device. The illuminating device can provide illuminating light with high brightness and good safety performance. The invention also protects an automobile lighting fixture including the lighting device.