169results about "Germanium organic compounds" patented technology

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a boron-nitrogen heterocyclic compound and an organic electroluminescent device thereof. The boron-nitrogen heterocyclic compound provided by the invention has relatively large steric hindrance, on one hand, molecular vibration is reduced, and the boron-nitrogen heterocyclic compound has relatively narrow half-peak width and can effectively improve the color purity of light emitted by a device; on the other hand, the distance between molecules is increased, the acting force between the molecules is weakened, quenching caused by aggregation is overcome, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.

A heterocyclic compound represented by Formula 1:wherein Ar1 and Ar2 are each independently a group represented by Formula 2, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted C2-C60 alkyl heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; ring CY1 to ring CY7 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; Cz1 is a group represented by Formula 3; and descriptions of the remaining substituents are as provided herein.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to a boron-nitrogen compound and an organic electroluminescent device comprising the same. The boron-nitrogen compound disclosed by the invention has good electron and hole receiving capability, and interaction among luminescent molecules can be effectively inhibited by introducing large-steric-hindrance azafluorene / benzfluorene / azabenzfluorene / silafluorene / germanium heterofluorene and other groups. The energy transmission performance between a subject and an object or a sensitizer can be improved by a large conjugated spiro structure unit, an sp2 aza-aromatic ring and other structures. Specifically, the boron-nitrogen compound provided by the invention is used as a functional layer, especially as an organic electroluminescent device manufactured by a luminescent layer, the current efficiency is improved, the lighting voltage is reduced, and meanwhile, the service life of the device is greatly prolonged. Therefore, after most electrons and holes are compounded, energy is effectively transferred to the boron-nitrogen compound, so that high luminous efficiency is realized.

The invention discloses a light-emitting auxiliary material, a preparation method thereof and an organic electroluminescent device, and relates to the technical field of organic photoelectric materials. According to the light-emitting auxiliary material disclosed by the invention, on the basis of a 9-phenylfluorene derivative group, triarylamine is connected to phenyl, and meanwhile, deuterium-substituted aromatic rings are connected to the triarylamine, so that the energy level can be effectively reduced, carrier migration localization can be avoided, and a hole transport energy barrier can be reduced, thereby increasing the migration rate and improving the light-emitting efficiency; triarylamine has excellent hole transport performance, a triarylamine material is used as a light-emitting auxiliary layer, a group with a high triplet state energy level is introduced, the energy range between energy levels can be reduced, and the service life of the device is greatly prolonged.

The invention provides an organic compound and application thereof. The organic compound has a structure as shown in a formula I. In the molecular structure of the organic compound, heavy atoms are introduced, and a specific structural design is adopted, so that the organic compound has high refractive index and good stability, light absorption enhancement can be avoided, and light extraction efficiency can be improved; the organic compound is suitable for an organic covering layer of an organic light-emitting device, and can improve the light-emitting efficiency, the working life and the like of the device.

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a boron-nitrogen heterocyclic compound and an organic electroluminescent device thereof. The boron-nitrogen heterocyclic compound provided by the invention has relatively large steric hindrance, on one hand, molecular vibration is reduced, and the boron-nitrogen heterocyclic compound has relatively narrow half-peak width and can effectively improve the color purity of light emitted by a device; on the other hand, the distance between molecules is increased, the acting force between the molecules is weakened, quenching caused by aggregation is overcome, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.

The invention discloses a boron-nitrogen compound and an organic electroluminescent device using the same, and relates to the technical field of organic electroluminescence. According to the boron-nitrogen compound provided by the invention, spiro and electron donor groups are introduced, so that the reverse intersystem crossing rate of molecules is favorably improved, triplet state exciton quenching is overcome, intermolecular close packing is effectively inhibited, the problem of spectrum broadening under high doping concentration is relieved, and the color purity of a device is improved; the compound is applied to a luminescent layer doping material of an organic electroluminescent device, so that the stability of the device is improved, and the service life of the device is prolonged.

The invention relates to a multi-resonance thermal activation delayed fluorescence compound with a space heavy atom effect and an organic electroluminescent device, and belongs to the field of organic luminescent materials. In the compound, a heavy atom-containing structural unit and a multi-resonance thermal activation delayed fluorescence unit are connected through a space confinement molecular skeleton; molecular orbits of the two are subjected to spatial interaction to promote the anti-intersystem crossing process of the multi-resonance thermal activation delayed fluorescence unit, so that the delayed fluorescence lifetime is shortened, and the device performance is improved.

The invention provides a boron-containing organic compound and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. According to the boron-containing organic compound, a spiro structure is added on a classic boron-nitrogen parent nucleus, large steric hindrance is brought to molecules, on one hand, vibration of the molecules is reduced, so that a spectrum is narrowed, and the color purity of light is improved; on the other hand, the distance between molecules is increased, the acting force between the molecules is weakened, quenching caused by aggregation is overcome, the luminous efficiency of the organic light-emitting device is improved, and the service life of the organic light-emitting device is prolonged. The method can be applied to the fields of information display, illumination, organic solar cells and the like.

The present invention relates to a process, an apparatus and a photoswitchable photoinitiator for locally polymerizing a starting material by bichromatic photopolymerization, as well as a method for volume printing (xolography) of shaped bodies. In particular, photoinitiators are provided that induce the curing of photopolymerizable formulations upon irradiation with two different wavelengths and can be used for volume printing (xolocure initiators).

Methods for preparing a catalyst precursor material from dihalo-substituted metalloids are provided. The methods In include mixing a first solution of a halogenated alkane, at least one solvent, and a first component selected from a dihalo-substituted-group-14 metalloid or an organolithium reagent in a first reaction zone. Continuously adding the first solution to a second reaction zone, and continuously adding a second solution to the second reaction zone. The second solution including at least one solvent and a second component of either the dihalo-substituted-group-14 metalloid or the organolithium reagent, the second component is different from the first component. Mixing the first solution and the second solution in the second reaction zone.

The invention provides a host compound, a dual-host material and an organic electroluminescent device, and belongs to the technical field of organic photoelectric materials, the host compound has a structure as shown in formula I. The dual-host material comprises a first host compound and a second host compound, the first host compound is a host compound with a structure as shown in a formula I; and the second host compound has a structure as shown in a formula II. The first host compound with the specific structure has higher hole mobility, the second host compound has higher electron mobility, and the first host compound and the second host compound with the specific structures are compounded, so that the hole mobility and the electron mobility can be balanced; by adding excitons in the light-emitting layer, the double-main-body material not only can improve the light-emitting efficiency and prolong the service life of a device, but also can reduce the driving voltage.

To provide photoacid generators, photoresist compositions, and pattern formation methods.SOLUTION: A photoacid generator includes: an organic cation; and an anion including an anionic core, wherein the anionic core includes a cyclopentadienide group, wherein the cyclopentadienide group is substituted with an organic group including a semi-metal element, and wherein the anion is substituted with one or more electron withdrawing groups.

The present invention relates to nitrogen-containing heterocyclic compounds suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, containing these heterocyclic compounds.

Disclosed is an organic light-emitting diode with high efficiency. The organic light-emitting diode includes a compound represented by Chemical Formula 1 as an emission layer material therein. Chemical Formula 1 is as defined in the description.

The invention relates to the technical field of organic photoelectric materials, and provides a silicon-containing boron-nitrogen compound, a preparation method thereof and an organic electroluminescent device. A double-silicon structure and tert-butyl in the compound can reduce molecular accumulation and inhibit exciton quenching; meanwhile, the resonance structure of B-N / Si can reduce the single triplet state energy gap, improve the reverse intersystem crossing (RISC) rate, reduce the efficiency loss under high brightness, and improve the luminous efficiency. In addition, the boron-nitrogen structure is high in rigidity, and the thermal stability of molecules can be improved, so that the service life of the device is effectively prolonged. The compound provided by the invention is used as a doping material, so that the prepared organic electroluminescent device has low driving voltage, high luminous efficiency and long service life.

The present disclosure relates to the technical field of organic photoelectric material preparation and particularly to a boron-nitrogen compound and an organic electroluminescent device comprising same. The boron-nitrogen compound of the present disclosure has a good ability to accept electrons and holes. By introducing groups with large steric hindrance such as azafluorene / benzofluorene / azabenzofluorene / silafluorene / germafluorene, the interactions between luminescent molecules can be effectively inhibited. Structures such as the large conjugated spiro-ring structural unit and the sp2 aza-aromatic rings in the compound can improve the energy transmission performance between the host and the guest or the sensitizer. Specifically, after the boron-nitrogen compound of the present disclosure is used as a functional layer, particularly as the emissive layer, in a manufactured organic electroluminescent device, there is an improvement in current efficiency, a reduction in turn-on voltage, and a relatively big improvement in the lifespan of the device.

The present invention discloses a boron-nitrogen hetero-compound, a preparation method thereof, and an organic electroluminescent device. The molecular structural formula of the boron-nitrogen hetero-compound is provided by the present invention. The boron-nitrogen hetero-organic compound is obtained by modifying the periphery of a boron-nitrogen hetero-fused ring skeleton with multiple resonance effects with an electron-withdrawing group. On the one hand, connecting the electron-withdrawing group to the periphery of the boron-nitrogen hetero-fused ring skeleton can adjust the energy level of the material and provide adjustable light color. On the other hand, introducing heavy atoms on the peripheral electron-withdrawing group can improve the reverse intersystem crossing rate while ensuring the narrow-band emission of the multiple resonance skeleton. The organic electroluminescent device prepared with the boron-nitrogen hetero-compound has the advantages of narrow-band emission, high color purity, high efficiency, low roll-off, and long lifespan at the same time.

The invention discloses a heteronuclear cerium-germanium complex and a preparation method and application thereof, and belongs to the technical field of organic synthesis.The heteronuclear cerium-germanium complex is a cerium-germanium complex A, a cerium-germanium complex B or a cerium-germanium complex C. Cerium and germanium centers of the complexes are in a specific space adjacent state; the cerium-germanium complex A, the cerium-germanium complex B and the cerium-germanium complex C have unique structures, so that the cerium-germanium complex A, the cerium-germanium complex B and the cerium-germanium complex C become an ideal fundamental research carrier. The method can be used for in-depth exploration of electron interaction or spin coupling possibly existing between cerium and germanium through a ligand skeleton; the two independent metal centers have synergistic reaction activity in a limited space; such structures have potential properties in molecular magnetic or luminescent materials. Therefore, the invention not only enriches the structure types of the rare earth-main group element complex, but also provides a new platform with accurate structure and adjustable performance for the basic research of multi-center metal organic chemistry, and has definite scientific significance and potential application exploration value.

The invention relates to an organic germanium-tungsten wheel cluster material, which has a chemical formula of Na16H26 [W36Ge6 (CH2CH2COOH) 6O138]. 82H2O, and belongs to a triclinic system. The organic germanium-tungsten wheel cluster material is prepared from dicarboxyethyl germanium trioxide and sodium tungstate in an acetic acid-sodium acetate buffer solution through a one-step self-assembly reaction, the operation is simple, and the cost is relatively low. In order to further improve the performance of the organic germanium-tungsten wheel cluster material, the organic germanium-tungsten wheel cluster material is compounded with gold nanoparticles and hyaluronic acid to obtain a composite material capable of effectively prolonging the cycle time and enhancing the photo-thermal performance and catalytic toxic active oxygen. The composite material has an excellent treatment effect when being used as a photothermal agent for tumor treatment.

Provided are a heterocyclic compound represented by Formula 1 and an organic light-emitting device including the heterocyclic compound. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including an emission layer; and at least one of the heterocyclic compound.

The invention belongs to the technical field of organic synthesis, focuses on innovation of a preparation method of an organic germanium compound, and particularly provides a novel photochemical synthesis path of an alpha-germanium oxime compound. According to the method, germane hydride, olefin and tert-butyl nitrite are taken as starting raw materials, and under the condition that no photocatalyst is added, only an ultraviolet light source is utilized for irradiation, so that the germanium-based / oximido-based bifunctionalization reaction of olefin is successfully realized for the first time. The method has the advantages of environmental friendliness, mild conditions, simplicity and convenience in operation, high atom economy, wide substrate application range and the like. The method can be used for modifying the drug molecule derivative after germanium group / oximidation, opens up a way for constructing an organic germanium compound with potential biological activity and pharmacological action, and is expected to play an important role in the field of medicine research and development.

Embodiments provide a heterocyclic compound, a light-emitting device including the heterocyclic compound, an electronic device including the light-emitting device, and an electronic device including the light-emitting device. The light emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer, and a heterocyclic compound. The heterocyclic compound is represented by Formula 1, which is explained in the specification. [Formula 1] # imgabs0 #

The present invention discloses a preparation method and application of a hybrid local-charge transfer excited state scintillator, belonging to the technical field of organic functional materials. The hybrid local-charge transfer excited state scintillator of the present invention overcomes the problems of weak X-ray absorption, low light yield and low X-ray imaging spatial resolution existing in the existing organic functional materials, and broadens the application of HLCT organic fluorescent materials in X-ray imaging. The hybrid local-charge transfer excited state scintillator of the present invention has a short synthesis step, high yield and novel structure, and for the first time, the interaction between the heavy atom and π electron in the molecule is regulated by the strategy of spatial heavy atoms, realizing the preparation of materials with HLCT luminescence mechanism.

The invention discloses a boron-containing polycyclic compound and an organic photoelectric element containing the same, and belongs to the field of organic photoelectricity. The boron-containing polycyclic compound has a structure as shown in a formula (1) or a formula (2). According to the compound, a boron-containing skeleton and a carbazole derivative are fused through intramolecular conjugation expansion, and a novel rigid unit is constructed. The conjugated fusion not only integrates the electron transport capability of a boron-containing skeleton and the hole transport characteristic and high triplet state energy level of carbazole, but also effectively increases the orbital delocalization range and significantly reduces the singlet state-triplet state energy level difference (delta EST) by reconstructing the distribution of a front line molecular orbital, thereby enhancing the reverse intersystem crossing rate (kRISC) of the compound, and enhancing the efficiency of the compound. And the utilization efficiency of triplet excitons is obviously promoted. When the material is used as a host material to be applied to an organic light-emitting diode, efficient and directional transfer of energy to an object can be ensured, the efficiency of a device is improved, the stability of the device is improved, and the material has a good commercialization prospect.

The invention belongs to the technical field of organic photoelectric materials, and discloses a host compound, an organic electroluminescent material containing double hosts and an organic electroluminescent device. The organic electroluminescent material containing the double hosts comprises a first host compound and a second host compound, the first host compound is a compound with a structure shown in a formula I, and the second host compound is a compound with a structure shown in a formula II. The organic electroluminescent material containing the double hosts is applied to the organic electroluminescent device, and has the advantages of low driving voltage, high luminous efficiency and long service life.

A novel multifunctional compound and an organic light emitting diode including a light emitting layer including the same are provided.

The invention belongs to the field of organic synthesis, and relates to preparation of organic germanium compounds, in particular to a visible light induced germanium alkylation synthesis method. According to the method, germane hydride and a hypervalent iodine reagent are taken as starting raw materials, and under the catalytic action of a photocatalyst 9, 10-phenanthrenequinone, a series of alkynyl, alkenyl, nitrile and phenyl germanes are synthesized. The reaction has the advantages of environmental friendliness, mild conditions, simplicity and convenience in operation, high atom / step economy, wide substrate application range and the like. By applying the method, the germanium-based post-modification of the drug molecule derivative can be realized, and a convenient means is provided for constructing an organic germanium compound which is unique in structure and has potential biological activity and pharmacological action.

The invention belongs to the technical field of organic luminescent materials and semiconductors, and particularly relates to a 7-phenylquinolone derivative, a preparation method and an organic electroluminescent device. After the 7-phenylquinolone derivative is used as a host luminescent material or an object luminescent material to be applied to a luminescent layer of the organic electroluminescent device, the luminescent efficiency of the organic electroluminescent device is effectively improved, the service life of the organic electroluminescent device is effectively prolonged, meanwhile, smaller efficiency roll-off is obtained, and the 7-phenylquinolone derivative has higher glass transition temperature and can be applied to the field of organic electroluminescent devices. Therefore, the stability and the yield of the organic light-emitting device are effectively improved. In addition, the synthetic route of the 7-phenylquinolone derivative is relatively simple, and structure optimization and production cost reduction of the 7-phenylquinolone derivative are facilitated.

The invention discloses a polycyclic aromatic compound and an organic electroluminescent device, and relates to the technical field of organic photoelectric materials. The polycyclic aromatic compound has a structure as shown in formula I. In the formula I, ring A is a substituted or unsubstituted benzene ring; at least one of Ra, Rb, Rc and Rd is selected from a formula I-a; wherein Z3 is respectively and independently selected from Si or Ge. The parent nucleus structure of the polycyclic aromatic compound provided by the invention has a B-N coordination structure, a carbazole structure and a large conjugated system fused by multiple aromatic rings, a rigid skeleton is formed by B and N atoms, and excessive aggregation of molecules can be inhibited by steric hindrance of Si or Ge, so that carrier transport blocking or exciton quenching caused by aggregation is avoided, and the performance of the compound is improved. Meanwhile, the dissolvability and processability of the material are improved, and the stability and efficiency of device performance are further guaranteed. The service life and the efficiency of a device prepared from the doping material are obviously improved.