75 results about "Tellurium compounds" patented technology

An all dry method for producing solar cells is provided comprising first heat-annealing a II-VI semiconductor; enhancing the conductivity and grain size of the annealed layer; modifying the surface and depositing a tellurium layer onto the enhanced layer; and then depositing copper onto the tellurium layer so as to produce a copper tellurium compound on the layer.

An x-ray and gamma-ray radiant energy imaging device is disclosed having a temperature sensitive semiconductor detector substrate bump-bonded to a semiconductor CMOS readout substrate. The temperature sensitive, semiconductor detector substrate utilizes Tellurium compound materials, such as CdTe and CdZnTe. The bump bonds are formed of a low-temperature, lead-free binary solder alloy having a melting point between about 100° C. and about 180° C. Also described is a process for forming solder bumps utilizing the low-temperature, lead-free binary solder alloy, to prevent damage to temperature sensitive and potentially brittle detector substrate when assembling the imaging device.

Disclosed is a resin composition which is characterized in that the metal content in the composition is not more than 1000 ppm. The resin composition contains a copolymer which is obtained by copolymerizing 80-99.9 parts by weight of a vinyl monomer mainly containing a (meth)acrylic acid alkyl ester and 0.1-20 parts by weight of a vinyl monomer having a reactive functional group by living radical polymerization, while using, as a polymerization initiator, one of the following: (a) an organic tellurium compound represented by the formula (1) below; (b) a mixture of an organic tellurium compound represented by the formula (1) below and an azo polymerization initiator; (c) a mixture of an organic tellurium compound represented by the formula (1) below and an organic ditellurium compound represented by the formula (2) below; and (d) a mixture of an organic tellurium compound represented by the formula (1) below, an azo polymerization initiator and an organic ditellurium compound represented by the formula (2) below. (In the formula, R<1> represents a C1-C8 alkyl group, an aryl group, a substituted aryl group or an aromatic heterocyclic group; R<2> and R<3> respectively represent a hydrogen atom or a C1-C8 alkyl group; and R<4> represents an aryl group, a substituted aryl group, an aromatic heterocyclic group, an acyl group, an amide group, an oxycarbonyl group or a cyano group.) (R<1>Te)2 (2) (In the formula, R<1> is as defined above).

Novel formulations of tellurium-containing compounds, which are suitable for topical application, are disclosed. The formulations are characterized by high chemical and physical stability and are easy to handle and use.

The invention discloses application of a tellurium based material serving as a negative electrode active material in a sodium-based dual-ion cell, the sodium-tellurium dual-ion cell and a preparationmethod thereof and relates to the field of electrochemical energy storage devices. The invention further discloses application of tellurium, a tellurium compound or a tellurium composite material serving as the negative electrode active material in the sodium-based dual-ion cell. The sodium-tellurium dual-ion cell comprises a negative electrode, a positive electrode, a diaphragm and electrolyte; the negative electrode active material comprises tellurium, the tellurium compound or the tellurium composite material; the positive electrode active material comprises a material capable of being reversibly embedded and dis-embedded into negative ions in the electrolyte; the electrolyte comprises a sodium salt and a non-aqueous solvent. The safety problems existing in the conventional sodium-ion battery taking a carbon material as the negative electrode material that the potential is low, sodium is easily separated out and a tinfoil serving as the negative electrode is simple in volume expansion and is easily powdered are solved. According to the sodium-tellurium dual-ion cell disclosed by the invention, the sodium ion and the tellurium negative electrode can carry out an alloying reaction, the reaction potential is high, and the sodium-tellurium dual-ion cell has the characteristics of being high in safety, high in specific energy density and stable in cycle.

Methods for treating skin conditions such as basal cell carcinoma and / or actinic keratosis are provided, which are effected by administering a pharmaceutically effective amount of a tellurium-containing compound. A pharmaceutical composition for treatment of skin conditions such as basal cell carcinoma an / or actinic keratosis is also provided.

An organotellurium compound of the formula (1) is useful as a living radical polymerization initiator and makes possible precision control of molecular weights and molecular weight distributions under mild conditionswherein R1 is C1-C8 alkyl, R2 and R3 are each a hydrogen atom or C1-C8 alkyl, and R4 is aryl, substituted aryl, aromatic heterocyclic group, hydroxycarbonyl or cyano.

The invention provides a composite optical fiber with a multi-component phosphate glass cladding / selenium and tellurium compound semiconductor fiber core. A composite optical fiber cladded with semiconductor fiber core glass has great application value in the aspects of nonlinear optical and medium / far infrared optical transmission, optical fiber sensing, photoelectric effect and the like. According to the composite optical fiber with the multi-component phosphate glass cladding / selenium and tellurium compound semiconductor fiber core, experimental study shows that the proper fiber core and cladding materials of the optical fiber with the glass cladding / semiconductor fiber core are obtained, in other words, multi-component phosphate glass is taken as the optical fiber cladding, a semiconductor selenium and tellurium compound is taken as the fiber core of the optical fiber, the thermal properties, the wetting properties and the expansion properties of the materials of the optical fiber cladding and the materials of the fiber core are reasonably combined, and thus the low-loss composite optical fiber which can be drawn continuously is obtained; in addition, the excellent photoelectric properties of the phosphate glass and the selenium and tellurium semiconductor are combined, and the composite optical fiber has broad application prospects in the aspects of optical transmission on the medium / far infrared long-wave band, photoelectric detection, Raman shift infrared sources, optical signal processing based on the high nonlinearity of the optical fiber, super-continuous super-continuum spectrum light sources and the like.

The invention discloses an inorganic phase change photoresist which is a germanium-stibium-tin-tellurium compound, wherein the general formula of the inorganic phase change photoresist is Ge2Sb2(1-x)Sn2xTe5, and x is larger than 0 and less than 0.3. The inorganic phase change photoresist is high in etching resistance ratio to a monocrystalline silicon piece and a silicon dioxide slice; a pattern with a crystalline state can be formed on the photoresist through direct writing or exposure by laser; furthermore, the photoresist has a negative photoresist characteristic in an acidic solution. According to a photolithographic technology based on the inorganic phase change photoresist, the preparation method is simple and convenient and has a pollution-free effect; furthermore, a special light environment needed by an organic photoresist is not needed, and laser with a specific wavelength is not used; the photolithographic technology can be implemented in a non-vacuum or vacuum environment; the advantages of short production period, low cost, high yield, simple and controllable technology, easiness in implementation of industrial production and the like are reflected.

The invention provides a fuel cell membrane electrode employing ruthenium telluride as a cathode and a preparation method. The membrane electrode comprises a proton exchange membrane, a cathode catalyst layer and an anode catalyst layer, wherein a carrier load of the cathode catalyst layer is a ruthenium-tellurium compound catalyst formed by ruthenium and tellurium or a ruthenium-based alloy nano-catalyst. The preparation method of the fuel cell membrane electrode comprises the steps of preparing paste for an anode, preparing the anode catalyst layer, preparing paste for a cathode and preparing the cathode catalyst layer, thereby finally completing preparation of the whole membrane electrode. The fuel cell membrane electrode has the beneficial effects that the fuel cell membrane electrodeis prepared by adopting the ruthenium telluride as the cathode catalyst layer instead of a traditional platinum-based catalyst layer, so that the preparation process is simple and the obtained membrane electrode is stable in performance and high in yield; and a non-platinum catalyst is utilized as the catalyst layer by the cathode, so that the cost of the fuel cell membrane electrode is greatly reduced, the poisoning resistance and the methanol oxidation resistance of the cathode are obviously improved and the fuel cell membrane electrode has a wide application prospect in a methanol fuel celland a small portable hydrogen fuel cell.

Provided are an aqueous coloring agent dispersion for inkjet which achieves high pigment concentration, exhibits favorable redispersion properties after drying, and does not exhibit changes in ink properties even when stored for a long time; and an ink composition using the aqueous coloring agent dispersion. This aqueous coloring agent dispersion contains a coloring agent (I), a liquid medium (II), and a polymer dispersion agent (III). The polymer dispersion agent (III) is an A-B block polymer obtained by copolymerizing via a living radical polymerization method, by using a mixture of an organic tellurium compound represented by formula (1) and an organic ditellurium compound represented by formula (2), or the like, as a polymerization initiator. Therein, the monomer for configuring the A block is at least one type of monomer represented by formula (3), and the monomer for configuring the B block is benzyl methacrylate and / or benzyl acrylate.

A novel neuroprotective agent is disclosed for the treatment and prevention of neurodegenerative disorders which is based on the administration of an effective amount of a tellurium compound which has a specific ability to induce the differentiation and interfere with apoptotic cell death pathways of neuronal PC-12 cells.

Methods for enhancing the immune response of a subject to an immunoeffector, and methods of enhancing interleukin-12 production, which are effected by administering an amount of the immunoeffector and an effective adjuvanting amount of a tellurium-containing compound are provided. The enhanced immune response may be a cell-mediated or a humoral immune response. A pharmaceutical composition, which comprises the tellurium-containing compound, the immunoeffector and a pharmaceutically acceptable carrier is also provided. Use of a tellurium-containing compound as an adjuvant for immunization is also provided.

The invention discloses a Te-doped Cs2ZrCl6 perovskite derivative material and a preparation method and application thereof, and the Te-doped Cs2ZrCl6 perovskite derivative material is prepared by taking a cesium-containing compound, a zirconium-containing compound and a tellurium-containing compound as reaction reagents and taking concentrated hydrochloric acid as a solution. And the influence ofthe tellurium doping amount on the luminous efficiency is explored. The Te-doped Cs2ZrCl6 perovskite derivative material prepared by adopting a solvothermal method is good in crystallinity, stable instructure, simple and convenient in preparation process, capable of being rapidly synthesized on a large scale and high in luminous efficiency. The problem of toxicity of lead-based perovskite is effectively solved by replacing lead with zirconium; the fluorescent powder can realize 575nm broadband yellow light emission under the excitation of ultraviolet light. Good application prospects are realized in the fields of illumination, display, projection, LEDs, fluorescent probes and the like.

Methods for treating skin conditions such as basal cell carcinoma and / or actinic keratosis are provided, which are effected by administering a pharmaceutically effective amount of a tellurium-containing compound. A pharmaceutical composition for treatment of skin conditions such as basal cell carcinoma an / or actinic keratosis is also provided.

The invention discloses a method for synthetizing a 2-trifluoromethyl oxazole compound. According to the method, trifluoroacetic anhydride is used as a reaction reagent; an oxime ester derivative is used as a reaction substrate; a tellurium compound and iodine are used as catalysts; in a solvent, heating is performed at 110 to 120 DEG C; stirring reaction is performed for 1 to 8h; the 2-trifluoromethyl oxazole compound is prepared. The synthesis method has the advantages that the yield is high; the raw materials can be easily obtained; the operation is simple and convenient; the functional group universality is good, and the like. Good industrial application prospects are realized.

The invention discloses a Te-doped A2SnCl6 perovskite material and a preparation method thereof. In the Te-doped A2SnCl6 perovskite material, A = Cs, Rb and K, a cesium-containing compound, a rubidium-containing compound, a potassium-containing compound, a tin-containing compound and a tellurium-containing compound are used as reaction reagents, and concentrated HCl is used as a solvent; the Te-doped A2SnCl6 perovskite material is prepared, and the influence of the temperature on the luminous efficiency of the A2SnCl6 perovskite material is explored. The Te-doped A2SnCl6 perovskite material prepared by adopting a solvothermal method is good in crystallization, high in quality, capable of being rapidly synthesized in quantity and simple and controllable in process, doping of different concentrations can be effectively realized by adjusting the feeding ratio of Te / Sn, and the Te-doped A2SnCl6 perovskite material has good repeatability..

The invention provides a preparation method and application of an Mo-V-Te-Nb-O catalyst, and relates to the technical field of catalysts. Compared with an existing process in which tellurate is takenas a tellurium source, the preparation method, in which reducing metal tellurium obtained by reducing a high-valent tellurium compound by a reducing agent is taken as a tellurium source and then is mixed with and reacts with a molybdenum source, a vanadium source and a niobium source before drying and calculating to obtain the Mo-V-Te-Nb-O catalyst, has the advantages that the Mo-V-Te-Nb-O catalyst obtained by the preparation method has high catalytic activity; the reducing agent used in the preparation process is stable and easy to operate, has no toxic effect on experimenters and the environment, and is inexpensive and suitable for industrial scale. The Mo-V-Te-Nb-O catalyst prepared by the preparation method is applied to reactions of producing acrylic acid through dimethylmethane oxidation.

The invention relates to a catalyst used for vinyl polymerization. In the invention, a tellurium compound is added in a synthesis process of the catalyst. A solid catalyst compound can be obtained by using the solid catalyst compound prepared by the method without adding a separation assistant. The catalyst has the characteristics of high activity and hydrogen regulation sensitivity.

The invention provides silver-aluminum paste for a P + electrode of a solar cell and the solar cell. The silver-aluminum paste for the P + electrode of the solar cell comprises conductive silver powder, aluminum powder or aluminum-containing alloy, inorganic powder, an organic carrier and alloy-containing or non-containing powder, wherein the inorganic powder contains boron oxide and selenium oxide, and the inorganic powder does not contain tellurium element and tellurium-containing compound. According to the silver-aluminum paste for the P + electrode of the solar cell, a B-Se-O glass system is adopted, and compared with an existing Pb-B-O glass system, the B-Se-O glass system has the advantages of being high in glass fluidity and milder in etching reaction; in the sintering process, the glass of the B-Se-O system can be rapidly liquefied and flow, and more and thinner contact area is formed between the glass of the B-Se-O system and the surface of a cell piece, so that while the passivation layer is eliminated, the damage to the p-n junction can be obviously reduced, and the recombination can be reduced; and meanwhile, the effects of improving the open-circuit voltage, reducing the contact resistance, improving the filling factor and finally improving the conversion efficiency can be achieved.

A process for producing a living radical polymer characterized in that a vinyl monomer is polymerized with use of an organotellurium compound represented by the formula (1), an azo type polymerization initiator and a ditelluride compound represented by the formula (2), and the living radical polymer obtainable by the process wherein R1 is C1-C8 alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R2 and R3 are each a hydrogen atom or C1-C8 alkyl, and R4 is aryl, substituted aryl, an aromatic heterocyclic group, acyl, oxycarbonyl or cyano. (R1Te)2   (2) wherein R1 is the same as above.

The invention discloses a mercury-tellurium compound containing transition metal complex ions and a hydrazine-aided preparation method thereof. The mercury-tellurium compound has a general formula of [TM(trien)(N2H4)2]Hg2Te4 or [TM(tepa)(N2H4)]2Hg4Te12, or [TM(trien){Hg2Te4}], or [TM(tepa)]2Hg5Te12, wherein TM is selected from a group consisting of Fe, Co, Ni, Mn and Zn, trien is triethylene tetramine, and tepa is tetraethylenepentamine. The invention also provides the hydrazine-aided preparation method for the compound. The hydrazine-aided preparation method is simple in synthesis, employs elemental tellurium powder as the single tellurium source, needs no intermediate step, substantially reduces reaction temperature in synthesis of the mercury-tellurium compound and does not need protection gas; the prepared compound is convenient to separate and purify; and the structure of mercury-tellurium anions and coordination between the mercury-tellurium anions and transition metal ions can be regulated by using different reaction temperatures and different organic amine ligands.

Use of tellurium-containing compounds in a method of conception and / or for maintaining and / or augmenting fertility in female following chemotherapy and / or radiotherapy is disclosed. The tellurium-containing compound is utilized in combination with a chemotherapeutic agent and / or radiation, such that the female treated by the chemotherapeutic agent and / or radiation and by the tellurium-containing compound is instructed to refrain from conceptive sex for a pre-determined time period, following the chemotherapy and / or radiotherapy, during which conception is undesired. The tellurium-containing compound is utilized in combination with a chemotherapeutic agent and / or radiation, such that the female treated by the chemotherapeutic agent and / or radiation and by the tellurium-containing compound is instructed to refrain from sex and / or from reproduction for a pre-determined time period, and is then allowed to practice reproduction.

The present invention relates to a conductive paste for forming a conductive track on a substrate, the paste comprising a solids portion dispersed in an organic medium, the solids portion comprising an electrically conductive material, particles of a glass fit and particles of a tellurium compound. The invention further relates to methods for preparing such a paste, to a method of manufacturing an electrode on a surface of a solar cell, and to a solar cell having an electrode formed thereon.

A novel neuroprotective agent is disclosed for the treatment and prevention of neurodegenerative disorders which is based on the administration of an effective amount of a tellurium compound which has a specific ability to induce the differentiation and interfere with apoptotic cell death pathways of neuronal PC-12 cells.

A thermoelectric nanocomposite is formed from homogeneous ceramic nanoparticles formed from at least one kind of tellurium compound. The ceramic nanoparticles have an average particle size from about 5 nm to about 30 nm and particularly to about 10 nm. The ceramic nanoparticles are coated with a particle coating in each case. The particle coating is formed from at least one layer of nanostructured, substantially intact carbon material. The nanocomposite may be formed by providing a precursor powder of homogeneous ceramic nanoparticles with at least one kind of a tellurium compound. A precursor coating of nanostructured, substantially intact carbon material is provided for the precursor nanoparticles. Heat treatment of the precursor powder generates the nanocomposite by conversion of the precursor coating into the particle coating.

The invention provides a method for activating a CdTe thin film solar cell, which comprises the steps of providing a CdTe thin film solar cell semi-finished product structure which comprises a substrate, wherein the substrate is provided with a bottom electrode, and a CdS / CdSe buffer layer and a CdTe light absorption layer are sequentially deposited on the bottom electrode; preparing an activating solution, specifically, adding copper chloride, zinc chloride and a tellurium-containing compound into an ammonia water solution containing alkali, and adding hydrazine hydrate to obtain the activating solution after the copper chloride, the zinc chloride and the tellurium-containing compound are completely dissolved; coating the CdTe light absorption layer with the activating solution; and drying the activating solution for reaction, and performing annealing heat treatment to activate the CdTe light absorption layer. The novel activating solution is prepared, the solution plays a role in activation, copper ions in the solution are locked by Te in a co-reduction system, diffusion of the copper ions to the light absorption layer is limited, and the ZnTe: Cu back good contact layer with matched components is obtained. In addition, the activating solution is a reduction system, and oxidation in the activation annealing process is effectively prevented.

The invention discloses a catalyst applied to vinyl polymerization and a preparation method and an application thereof. The catalyst comprises (A) a solid catalyst component containing titanium and (B) an organic aluminum compound, wherein the solid catalyst component is prepared by dissolving magnesium halide into an organic epoxy compound and organic phosphorous compound, adding an electron donor compound to form a uniform solution, reacting with a halide of transition metallic titanium or a derivative thereof, and adding a mixture of organic ethanol and / or methylbenzene of a tellurium compound for treating; the general formula of the organic aluminum compound is AlRnX3-n; in the formula, R is hydrogen or C1-20 carbon atoms, X is halogen, and n is an integer of more than zero and less than or equal to 3; and the ratio of the component B to the component A is 5-1,000 according to the molar ratio of aluminum to titanium. In the preparation process of the catalyst, an assisting precipitating agent is not required to be added; and the catalyst has the advantages of high activity and sensitivity to hydrogen regulation.