74results about "Germanium organic compounds" patented technology

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 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.

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 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 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 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.

Disclosed is a supported catalyst system comprising a substituted 2-hydroxythiophene compound and a support material; and a process for preparing the supported catalyst system; also disclosed is a gas phase or slurry phase polymerization process employing the supported catalyst system; and a polyolefin prepared by the gas phase or slurry phase polymerization process. The substituted 2-hydroxythiophene compound and a pre-catalyst comprising the substituted 2-hydroxythiophene compound, a metal atom, and a leaving group are also disclosed. Methods of preparing the pre-catalyst and the substituted 2-hydroxythiophene compound are also disclosed.

The present invention relates to an organic light-emitting device including a plurality of host compounds in a light-emitting layer and employing a compound having a characteristic structure as one host material, thereby enabling low-voltage driving, and achieving significantly improved light-emitting efficiency and lifespan, resulting in high efficiency and long lifespan properties. Accordingly, the organic light-emitting device may be industrially utilized not only in lighting devices, but also in various display devices such as flat-panel, flexible and wearable displays, displays for vehicles or aviation, and displays for virtual or augmented reality.

The invention discloses an organic electroluminescent material and a device thereof. The organic electroluminescent material is a compound with a structure represented by a formula 1, the compound can be used as a main body material, an electron transport material or a hole blocking material and the like in an organic electroluminescent device, the comprehensive performance of the device can be greatly improved, for example, the device has low driving voltage and / or high device efficiency, and especially, the device has good application prospects. And the service life of the device is remarkably prolonged unexpectedly. The invention also discloses an organic electroluminescent device containing the organic electroluminescent material and a compound composition.

The invention relates to cyclic silicon compounds for use in electronic devices, in particular in organic electroluminescent devices, and to electronic devices, in particular organic electroluminescent devices, which contain these materials.

The present invention relates to a novel organometallic compound, a method for producing same, and a method for producing a thin film using same, and more particularly, to an organometallic compound which has improved thermal stability and volatility in production of a thin film through chemical vapor deposition, atomic layer deposition, or a solution process, and from which it is possible to easily produce a germanium thin film or a germanium selenide thin film, or an indium-containing thin film or a gallium-containing thin film of high quality at low temperature, a method for producing same, and a method for producing a thin film using same.

The present invention relates to compounds represented by formula (1), mixtures and electronic devices comprising these compounds, in particular organic electroluminescent devices comprising these compounds as host material, hole transport material or exciton blocking material.

The invention provides a boron-containing organic compound and an organic electroluminescent device containing the same, and the structural general formula of the boron-containing organic compound is a chemical formula I. The boron-containing organic compound provided by the invention is used as a doping material of a luminescent layer in the organic electroluminescent device, so that the device has low driving voltage and also has high luminous efficiency. And the light-emitting efficiency and the service life are excellent.

The invention discloses a divalent tin / germanium compound and a preparation method thereof. The divalent tin / germanium compound has the following structure, wherein M is Sn or Ge. The novel bivalent tin / germanium compound synthesized by the method is low in boiling point and good in stability, is in a liquid state at normal temperature, and is suitable for an atomic layer deposition process; the target product is prepared by adopting a one-pot method, the operation conditions are convenient, the product yield is high, meanwhile, raw materials are wide in source and cheap, and the method is suitable for large-scale production.

The present invention relates to silicon compounds and derivatives thereof, and to electronic devices, in particular organic electroluminescent devices, containing said compounds.

The present invention provides bioorthogonal tetrazine reaction entities for use in pretargeting approaches comprising imaging, therapy and diagnostics specifically pretargeting theranostics. The present invention also provides precursors of the tetrazine reaction entities and kits comprising the tetrazine reaction entity or the precursor of the tetrazine reaction entity and a dienophile with inverse electron demand Diels-Alder cycloaddition reactivity.

The invention discloses a trans-azobenzene compound and an electroluminescent device thereof, and belongs to the technical field of organic luminescent materials and semiconductors. According to the azobenzene compound, electron donating substituent groups and electron withdrawing substituent groups are substituted at 4 positions and 4'positions of two benzene rings of trans-azobenzene, so that an energy barrier of isomerization from trans-azobenzene to cis-azobenzene is improved, configuration transformation is not easy to occur in the preparation and use processes, meanwhile, the steric hindrance of azobenzene is also reduced, and the stability of the azobenzene compound is improved. And the molecular structure is more symmetrical and stable. When the azobenzene compound is applied to the electroluminescent device as a guest material, the driving voltage of the electroluminescent device can be effectively reduced, the efficiency of the device is improved, and the service life of the device is prolonged.

The present invention relates to an organic light-emitting element having high efficiency characteristics, and more specifically, to an organic light-emitting element comprising a compound represented by chemical formula 1 as a light-emitting layer material in the organic light-emitting element, the chemical formula 1 being the same as the content described in the detailed description of the present invention.

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.

To provide an organometallic compound and an organic light-emitting element including the organometallic compound, and an electronic apparatus including the organic light-emitting element.SOLUTION: An organometallic compound is represented by chemical formula 1, M(L1)n1(L2)n2. In chemical formula 1, explanations related to M, L1, L2, n1, and n2 are to be referred to descriptions in the specification.SELECTED DRAWING: Figure 1

Ge-centered octahedral perovskites have heretofore not been achievable due to collapse of the perovskite structure into non-octahedral units due to a lack of B site support from the small-radius Ge atom, which breaks Goldschmidt's rules for constructing octahedral perovskites. To overcome this shortcoming, a strategy was developed to form a strong cage with the A sites in which the octahedron is forced to remain intact. Strong intermolecular interaction between the organic A site cations were used to stabilize the symmetric Ge octahedral perovskite beyond the Goldschmidt's rules. The molecules used based on Y-PMA (Y: F, Cl, Br, I) that facilitated strong halogen bonding to form the cage around the octahedral. Octahedral Ge perovskites exhibit a direct bandgap in contrast to the indirect bandgap of non-octahedral Ge perovskites are demonstrated. In addition, the octahedral Ge perovskite exhibited a dramatic increase in the carrier mobility. A photodetector made with the stabilized octahedral perovskite material exhibited a vastly better responsivity than non-octahedral Ge perovskites.

The invention discloses a method for preparing propargyl ester through 1, 3-enyne 1, 2-carbon esterification reaction based on a polarity matching strategy and application, and the method comprises the following steps: in the presence of a copper catalyst, a ligand and tert-butyl peroxybenzoate and under the heating condition, reacting a compound in a formula (1) with a compound in a formula (2) in an organic solvent to generate the propargyl ester in a formula (3). The preparation method provided by the invention can be suitable for alkyl-substituted 1, 3-enyne, aryl-substituted 1, 3-enyne, silicon-substituted 1, 3-enyne, an electron-rich C-H substrate, an electron-deficient C-H substrate, a Si-H substrate and a Ge-H substrate, and has the advantages that the substrates are simple and easy to obtain, and the universality is wide. The preparation method provided by the invention has the advantages of cheap and easily available reaction raw materials, simple reaction operation, wide application range of reaction substrates, easy amplification of reaction, mild reaction conditions and the like, and can realize industrial production and application.

Provided are boron-containing compounds. Also provided are formulations comprising these boron-containing compounds. Further provided are OLEDs and related consumer products that utilize these boron-containing compounds.

Described herein are luminescent sila- and germafluorenes. Also described herein are methods of making and using sila- and germafluorenes. The position and the type of substituent impact the absorption and emission properties in solution and in the solid-state and subsequently influence the role of sila- and germafluorenes as biosensors.

The invention provides a trihydrogermane, a dihydrogermane, a monohydrogermane, and a method for preparing the trihydrogermane, the dihydrogermane and the monohydrogermane. Germanium dichloride is used as an initial raw material, and is subjected to an insertion reaction with a carbon halogen bond of halogenated hydrocarbon, and then reduction treatment is performed, so that the trihydro germane compound is efficiently constructed. Further, coupling of an olefin precursor and a germanium source is realized based on a metal-free condition or a zirconium-catalyzed olefin hydrogen germanization reaction, so that dihydrogermane and monohydrogen germane compounds are synthesized. The germane compound obtained by the invention can be separated and purified by conventional means such as extraction, column chromatography and the like, is stable to air and humidity, and shows a good industrial application prospect.

The invention discloses a germanium-zinc reagent as well as a preparation method and application thereof. The germanium-zinc reagent has the following structural general formula,