Abstract: A modified polysiloxane has formula (I) In formula (I) m is an integer between 0 and 10000; n is an integer between 0 and 10000; m and n cannot be equal to 0 simultaneously; R1-R7 are the same or different; and at least one of R1-R7 includes a group having a reversible chemical bond system based on a hydrogen bond, a coordinate bond, or a covalent bond. The polysioxane is used as a main chain to introduce a reversible chemical bond having temperature sensitivity by using a chemical method, so as to obtain a polymer material which is highly sensitive to temperature. The temperature-sensitive properties of materials provide functional materials for specific applications, such as medical external fixation materials, orthopedic materials, and packaging materials, can be obtained by using particular processing and preparation methods.

Abstract: A modified polysiloxane has formula (I) In formula (I) m is an integer between 0 and 10000; n is an integer between 0 and 10000; m and n cannot be equal to 0 simultaneously; R1-R7 are the same or different; and at least one of R1-R7 includes a group having a reversible chemical bond system based on a hydrogen bond, a coordinate bond, or a covalent bond. The polysioxane is used as a main chain to introduce a reversible chemical bond having temperature sensitivity by using a chemical method, so as to obtain a polymer material which is highly sensitive to temperature. The temperature-sensitive properties of materials provide functional materials for specific applications, such as medical external fixation materials, orthopedic materials, and packaging materials, can be obtained by using particular processing and preparation methods.

Abstract: The invention relates to organic electroluminescent devices, and discloses a phosphorescence device containing heterocyclic phosphoric acid metal complexes. The phosphorescence device provided by the invention contains metal complexes of heterocyclic phosphoric acid auxiliary ligands, and the glass transition temperature of the hole transport material of phosphorescence device is not lower than 85° C. Because a hole transport material with high vitrification temperature is used, the device provided by the invention can overcome the instability of the device and the adverse effect on the service life of the device when the glass transition temperature of the working device when the ambient temperature is above 30-40° C. and the working device temperature is close to that of the hole transport material. Compared with the devices based on FIrpic and TAPC, the phosphorescence device provided by the invention not only has higher device efficiency, but also has better high temperature stability.

Abstract: An iridium complex is disclosed. The iridium complex with a new type of primary ligand and (4-trifluoromethyl) tetraphenylphosphorane as an auxiliary ligand takes any one of 2-(4,6-bi trifluoromethyl-3-) pyridine, 2-(4,6-bi trifluoromethyl-4-) pyridine, 2-(4,6-bi trifluoromethyl-3-) pyrimidine, 2-(4,6-bi trifluoromethyl-4-) pyrimidine, 2-(4,6-bi trifluoromethyl-3-) pyrazinyl, 2-(4,6-bi trifluoromethyl-4-) pyrazinyl, 2-(4,6-bi trifluoromethyl-3-) triazine, 2-(4,6-bi trifluoromethyl-4-) triazine derivatives as primary ligands in its molecule. By modifying the molecular structure of the primary ligands, the new type of iridium complex covered by the present invention allow to adjust the luminous intensity and efficiency of the complex, thus facilitating the design and production of organic light-emitting diode and illumination source. Meanwhile, the synthesis method of a series new type of iridium complexes of the present invention is simple with high yield and flexible in chemical modification of ligands.

Abstract: An iridium complex is disclosed. The iridium complex with new type primary ligand, and an auxiliary ligand of 4(3,5-pyrimidine) phosphonimidesas. The iridium complex of this series has primary ligand in molecule which is the any one derivative of the following ones: 2-(4,6-pyridine2-(trifluoromethyl)pyridine-3-)pyridine, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-4-)pyridine, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-3-)pyrimidine, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-4-)pyrimidine, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-3-)pyrazinyl, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-4-)pyrazinyl, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-3-)triazinetriazine, 2-(4,6-pyridine2-(trifluoromethyl)pyridine-4-)triazinetriazinederivative; the new type of iridium complex covered by the present invention has not only such advantages as high luminous efficiency, high electron mobility, stable chemical property, easy for distillation and purification but also good performance of devices.

Abstract: An iridium complex is disclosed. The iridium complex includes the following ligands: 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyrimidine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyrimidine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyrazine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyrazine, and the derivatives of 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butytriazine and 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butytriazine. Such new iridium complex in the invention not only owns the high luminous efficiency, stable chemical property, easy sublimation purification and other advantages, but also has good device performance.

Abstract: An iridium complex is disclosed. The iridium complex with tetraphenylphosphorane as an auxiliary ligand takes any one of 2-(4,6-bi trifluoromethyl)pyridine, 2-(4,6-bi trifluoromethyl)pyrimidine, 2-(4,6-bi trifluoromethyl)pyrazinyl and 2-(4,6-bi trifluoromethyl) triazine derivatives as primary ligands in its molecule. The new type of iridium complex covered by the present invention has not only such advantages as high luminous efficiency, high electron mobility, stable chemical property, easy for sublimation and purification but also good performance of devices. By modifying the molecular structure of the primary ligands, it allows to adjust the luminous intensity and efficiency of the complex, thus facilitating the design and production of organic light-emitting diode and illumination source. Meanwhile, the synthesis method of a series new type of iridium complexes of the present invention is simple with high yield and is flexible in chemical modification of ligands.

Abstract: An iridium complex is disclosed. The iridium complex includes two primary ligands selected from 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyrimidine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyrimidine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyrazine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyrazine, and the derivatives of 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butytriazine and 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butytriazine. The iridium complex further includes an auxiliary acetylacetone ligand. Such new iridium complex in the invention not only owns the high luminous efficiency, stable chemical property, easy sublimation purification and is other advantages, but also has good device performance.

Abstract: An iridium complex is disclosed. The main auxiliary ligand of the iridium complex molecule is selected from 2-(4,6-bistrifluoromethylpyridine) pyridine, 2-(4,6-bistrifluoromethylpyridine) DMCP, 2-(4,6-bistrifluoromethylpyridine) tetramethypyrazine and 2-(4,6-bistrifluoromethylpyridine) triazine derivatives. Such new iridium complex in the invention not only owns the high luminous efficiency, stable chemical property, easy sublimation purification and other advantages, but also has good device performance. By embellishing the molecular structure of ligand, it could adjust the light intensity and efficiency of complexes within the scope of green light wavelength, which provides the convenience for the design and production of Organic Light Emitting Device and lighting source.

Abstract: An iridium complex is disclosed. The iridium complex takes 2-(5-phenyl-1,3,4-oxadiazoles-2-) phenol as the auxiliary ligand, and main ligand of the iridium complex molecule includes the following ligands: 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butypyridine, 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butypyrazine, and 2-(4,6-difluoromethyl and trifluoromethyl pyridine-3-) butytriazine and 2-(4,6-difluoromethyl and trifluoromethyl pyridine-4-) butytriazine derivatives. Such new iridium complex in the invention not only owns the high luminous efficiency, stable chemical property, easy sublimation purification and other advantages, but also has good device performance.

Abstract: An iridium complex is disclosed. The iridium complex with a new type of primary ligand and (4-trifluoromethyl) tetraphenylphosphorane as an auxiliary ligand takes any one of 2-(4,6-bi trifluoromethyl-3-) pyridine, 2-(4,6-bi trifluoromethyl-4-) pyridine, 2-(4,6-bi trifluoromethyl-3-) pyrimidine, 2-(4,6-bi trifluoromethyl-4-) pyrimidine, 2-(4,6-bi trifluoromethyl-3-) pyrazinyl, 2-(4,6-bi trifluoromethyl-4-) pyrazinyl, 2-(4,6-bi trifluoromethyl-3-) triazine, 2-(4,6-bi trifluoromethyl-4-) triazine derivatives as primary ligands in its molecule. By modifying the molecular structure of the primary ligands, the new type of iridium complex covered by the present invention allow to adjust the luminous intensity and efficiency of the complex, thus facilitating the design and production of organic light-emitting diode and illumination source. Meanwhile, the synthesis method of a series new type of iridium complexes of the present invention is simple with high yield and flexible in chemical modification of ligands.

Abstract: An iridium complex is disclosed. The iridium complex with tetra(4-fluorophenyl) phosphorane as an auxiliary ligand, the series of iridium complex takes any one of 2-(4,6-bi trifluoromethyl)pyridine, 2-(4,6-bi trifluoromethyl)pyrimidine, 2-(4,6-bi trifluoromethyl)pyrazinyl and 2-(4,6-bi trifluoromethyl) triazine derivatives as primary ligands in its molecule. The new type of iridium complex covered by the present invention has not only such advantages as high luminous efficiency, high electron mobility, stable chemical property, easy for distillation and purification but also good performance of devices. By modifying the molecular structure of the primary ligands, it allows to adjust the luminous intensity and efficiency of the complex, thus facilitating the design and production of organic light-emitting diode and illumination source.