1108 results about "Metal doped" patented technology

A method of manufacturing a semiconductor device, a semiconductor device and systems incorporating the same include transistors having a gate metal doped with impurities. An altered work function of the transistor may alter a threshold voltage of the transistor. In certain embodiments, a gate metal of a first MOSFET is doped with impurities. A gate metal of a second MOSFET may be left undoped, doped with the same impurities with a different concentration, and/or doped with different impurities. In some embodiments, the MOSFETs are FinFETs, and the doping may be a conformal doping

The present disclosure relates to methods for improving adhesion between a hardmask layer and a subsequent layer on the hardmask layer. Particularly, embodiment of the present disclosure relates to methods for improving adhesion between a metal-doped amorphous carbon layer and a mask layer, such as a silicon oxide layer, a silicon nitride layer, or an amorphous silicon layer. One embodiment of the present disclosure includes performing a plasma treatment to the metal-doped amorphous carbon layer.

An electrochromic device comprising a counter electrode layer comprised of lithium metal oxide which provides a high transmission in the fully intercalated state and which is capable of long-term stability, is disclosed. Methods of making an electrochromic device comprising such a counter electrode are also disclosed.

Disclosed herein are a core/shell nanocrystal and a method for producing the same. More specifically, disclosed herein are a core/shell nanocrystal comprising a metal-doped shell nanocrystal, and a method for producing the same. The core/shell nanocrystal comprises a core nanocrystal and a metal-doped shell nanocrystal formed on the core nanocrystal. Based on the structure, the core/shell nanocrystal exhibits superior crystallinity and high luminescence efficiency, enables easy control of the shape and size and can be produced in a simple manner.

The invention discloses a preparation method for a self-supporting metal-doped cobalt phosphide nano structure and an application of the self-supporting metal-doped cobalt phosphide nano structure as a catalytic electrode in water electrolytic hydrogen production, and belongs to the technical field of hydrogen energy and fuel cells. According to the invention, a metal element is firstly used as a doping agent for introducing cobalt phosphide, in-situ growth, on the surface of a collector, of the cobalt phosphide is realized, the catalytic activity and the structural stability are improved, the problem that a powder catalyst needs a polymer binder for being effectively fixed on the surface of the electrode is solved, and therefore, the self-supporting metal-doped cobalt phosphide nano structure is suitable for large-scale industrial hydrogen production application.

The invention discloses a multilayered gradient diamond like nano composite coating for an aluminum alloy piston and a preparation method thereof. The coating consists of a piston matrix, a bottom adhesive layer, a middle transition layer and a surface layer in turn, wherein the bottom is provided with a metal Ti or Cr adhesive layer; the middle transition layer is metal nitride and a Si layer; and the surface layer is a metal-doped diamond like carbon film. The wear life of the coating is improved by more than 40 times compared with that of a single-layer diamond like coating with the same thickness directly formed on the surface of aluminum alloy, and the friction coefficient under the oil lubricating condition is stabilized to be 0.05. The piston with the diamond like coating has better comprehensive performance than a piston of which the skirt is treated by MoS2, and can meet the requirements on high speed, high efficiency and low emission of a modern engine.

A highly transparent non-metallic cathode is disclosed that comprises a metal-doped organic electron injection layer that is in direct contact with a transparent non-metallic electron injecting cathode layer, such as indium tin oxide (ITO), wherein the metal-doped organic electron injection layer also functions as an exciton blocking or hole blocking layer. The metal-doped organic electron injection layer is created by diffusing an ultra-thin layer of about 5-10 Å of a highly electropositive metal such as Li throughout the layer. A representative embodiment of the highly transparent non-metallic cathode comprises a layer of ITO, a layer of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), which acts as an electron injection, exciton blocking, and hole blocking layer, and an ultra-thin layer of lithium, which degenerately dopes the layer of BCP, improving the electron injecting properties of the BCP layer. This cathode is demonstrated for use in an OLED having a transparency of about 90% or higher combined with a device external quantum efficiency of about 1% or higher.

A band gap engineered, charge trapping memory cell includes a charge trapping element that is separated from a gate by a blocking layer of metal doped silicon oxide material having a medium dielectric constant, such as aluminum doped silicon oxide, and separated from the semiconductor body including the channel by an engineered tunneling dielectric.

Multi-wavelength optical apparatus includes an optical emitter, and an energy transition layer positioned adjacent to the optical emitter. The energy transition layer generates multi-wavelength electromagnetic radiation when monochromatic light from the optical emitter passes therethrough. The energy transition layer includes a plurality of luminescent films, and each film is configured to luminesce at a respective different wavelength range when monochromatic light from the optical emitter passes therethrough. The plurality of luminescent films may be arranged in contacting face-to-face relationship or may be arranged in an array. The luminescent films may include rare-earth doped oxides, phosphors, metal-doped oxides, rare-earth doped nitrides, nanostructures, and/or nanostructured films, etc. The optical emitter may be a light emitting diode (LED), a laser diode (LD), an organic light-emitting diode (OLED), a resonant cavity light emitting diode (RCLED), and/or an edge-emitting diode (EELED).

The invention discloses a preparation method of a metal doped lithium manganese phosphate/graphene/carbon composite material. By adopting the method, the graphene is added in the preparation process of the lithium manganese phosphate to replace partial conductive carbon black; and a precursor which is a mixture of three solutions is transferred to a reaction tank and is subjected to solvothermal reaction at 160-300 DEG C for 1-20 hours to obtain the graphene in-situ composite lithium manganese phosphate material. According to the preparation method disclosed by the invention, the surface-contact compounding of graphene and lithium manganese phosphate is achieved by taking advantage of the flexibility characteristic of graphene, and the electronic conductivity of the lithium manganese phosphate is improved by taking advantage of the extremely high conductivity of graphene. By adopting the preparation method disclosed by the invention, not only is the intrinsic electronic conductivity of the composite material improved, but also a graphene film layer with extremely high conductivity is uniformly coated on the surface of the lithium manganese phosphate material, the graphene and the conductive carbon black together form a three-dimensional conductive network, and therefore the electrochemical performance of the lithium manganese phosphate material is obviously improved, and the composite material can be used as the anode material of a lithium ion battery.

A multiple elements doped anatase-type TiO2 sol photocatalyst features that its solvent is water or the mixture of water and unitary or binary alcohol, and its sol contains non-metal doped anatase-type TiO2 nanoparticles, and has a formula: TiO2-x-yAxBy, where x=0.0-0.1, y=0.0-0.1 and A or B is one or more of non-metal halogens or N-family elements. Its preparing process includes such steps as hydrolyzing organic or inorganic Ti source, doping, dispergating, and hydrothermal crystallizing.

A method of forming a copper filled semiconductor feature having improved bulk properties including providing a semiconductor process wafer having a process surface including an opening for forming a semiconductor feature; depositing at least one metal dopant containing layer over the opening to form a thermally diffusive relationship to a subsequently deposited copper layer; depositing said copper layer to substantially fill the opening; and, thermally treating the semiconductor process wafer for a time period sufficient to distribute at least a portion of the metal dopants to collect along at least a portion of the periphery of said copper layer including a portion of said copper layer grain boundaries.

The invention provides a PVD nano composite ceramic coating screw. A screw substrate (7) is coated with a coating (6) consisting of a bonding layer, a primary wear-resistance layer and a lubricating layer sequentially. The method for manufacturing the screw comprises the following steps: firstly, depositing a 50 to 100 nanometer thick transitional metal bonding layer at an air pressure of 0.1 Pa; secondly, depositing a 2 to 5 micrometer thick composite ceramic layer as the primary wear-resistance layer at a temperature of between 350 and 400 DEG C, a voltage of between -50 and -200 volts and an air pressure of 0.2 to 1Pa; and finally, depositing a 1 to 3 micrometer transitional metal doped diamond carbon film layer as the lubricating layer at a temperature of between 100 and 150 DEG C, a voltage of between -50 and -150 volts and an air pressure of 0.1 to 0.5Pa. Compared with the prior art, the screw has the advantages of having lubricating performance, along with high hardness (more than 40GPa Hv hardness) and excellent wear resistance (friction coefficient about 0.1). The method is free from pollution and the coating has strong adhesive force.

Embodiments of the present disclosure relate to a metal-doped amorphous carbon hardmask for etching the underlying layer, layer stack, or structure. In one embodiment, a method of processing a substrate in a processing chamber includes exposing a substrate to a gas mixture comprising a carbon-containing precursor and a metal-containing precursor, reacting the carbon-containing precursor and the metal-containing precursor in the processing chamber to form a metal-doped carbon layer over a surface of the substrate, forming in the metal-doped carbon layer a defined pattern of through openings, and transferring the defined pattern to an underlying layer beneath the metal-doped carbon layer using the metal-doped carbon layer as a mask. An etch hardmask using the inventive metal-doped amorphous carbon film provides reduced compressive stress, high hardness, and therefore higher etch selectivity.

Disclosed are processes for producing monolithic and metal doped monolithic porous carbon disks from prepolymer organic precursors in the powder form composed of either or both polyimide and polybenzimidazole. The powders are consolidated (compressed) into disks and then pyrolyzed to form the desired porous carbon disk. Porous carbon-carbon composite disks are also prepared by adding carbon to the prepolymer organic precursors.

The invention discloses a method for preparing a lithium battery anode material lithium transition metal composite oxide, which comprises the following steps of: uniformly mixing transition metal mixed M salt and metal doped M' salt in accordance with a stoichiometric proportion in a mechanical mode; calcining at high temperature to form the transition metal composite oxide; performing secondary mechanical mixing on the transition metal composite oxide and the lithium salt; and calcining at high temperature to prepare the lithium transition metal composite oxide. By adopting a secondary mechanical mixing-solid-phase sintering process, the method solves the problems that a pure-phase quaternary lithium transition metal composite oxide cannot be synthesized by the traditional dry mixing solid-phase sintering process, and the improved wet mixing-solid-phase sintering method cannot make lithium and transition metal atoms uniformly and sequentially arranged; the lithium battery anode material lithium transition metal composite oxide has the advantages of no impurity phase, and uniform average grain diameter and excellent cycle performance of the product; and the preparation method has the advantages of simpleness, low production cost and suitability for industrial production.

The invention relates to a method for preparing a nontoxic visible ultraviolet and heat insulation UV coating for food packaging and belongs to a composite material for packaging and the field of a photocuring technology. The invention relates to a white carbon black and metal doped tin oxide nanometer powder body composite ultraviolet photo-cured coating which can improve the capacity of ultraviolet insulation and heat insulation; the coating mainly comprises a photosensitive oligomer, an active thinner, a light evocating agent, white carbon black and metal doped tin oxide, a filler and an additive. The UV coating material has innocuity and harmlessness, can obstruct ultraviolet light of over 97 percent and infrared light of over 80 percent in daylight, has functions of transparence, heat insulation, sterilization and uneasy gleization, is in particular suitable for a visible plastic food packaging bag, a transparent polyester food vessel and the like, is convenient to keep food fresh and store food, prolongs guarantee period of food and reduces the deterioration and waste of food. The UV coating is not added with an organic solvent, is favorable for environmental protection, and has convenient construction and obvious environmental, social and economic benefits.

The present invention discloses composite inorganic membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The composite zeolite membrane is prepared by TS-1 zeolite membrane synthesis, and subsequent palladium doping. In the composite zeolite membrane synthesis, two different methods can be employed, including in-situ crystallization of one or more layers of zeolite crystals an a porous membrane substrate, and a second growth method by in-situ crystallization of a continuous second layer of zeolite crystals on a seed layer of MFI zeolite crystals supported on a porous membrane substrate. The membranes in the form of disks, tubes, or hollow fibers have high gas selectivity over other small gases, very good impurity resistance, and excellent thermal and chemical stability over polymer membranes and other inorganic membranes for gas, vapor, and liquid, separations.

In a process of forming a capped crystal structure, a precursor solution is heated. The solution comprises a mixture of zinc (Zn) precursor, selenium (Se) precursor, precursor for a dopant, glutathione (GSH), and water. The dopant comprises a transition metal (M). The molar ratio of Zn:Se in the solution may be about 10:3 to about 10:5. The solution is heated for a first period sufficient to allow Zn(M)Se crystal core to form. After the first period of heating, more zinc precursor and GSH are added to the heated solution, and the solution is heated for a second period sufficient to form ZnS crystal shell on the Zn(M)Se crystal core. GSH is added in a sufficient amount to form a GSH layer around the Zn(M)Se/ZnS quantum dot.

The invention relates to a preparation method and application of a graphite-phase carbon nitride-based heterogeneous Fenton-like catalyst. The graphite-phase carbon nitride-based heterogeneous Fentoncatalyst is a metal-doped g-C3N4 composite material. The preparation method comprises the following steps: proportionally mixing metal salt and urea without any pretreatment to the metal salt and theurea, adding an obtained mixture into a ceramic crucible, wrapping the mouth of the crucible with aluminum foil, covering with a crucible cover, putting into a muffle furnace, and calcinating in a programmed heating manner without need of any inert protective gas during calcination; and naturally cooling a calcinated product to room temperature, then taking out and grinding to obtain the needed material. The graphite-phase carbon nitride-based heterogeneous Fenton catalyst is applied to organic wastewater treatment. By a one-step synthesis method of the metal-doped g-C3N4 Fenton catalyst, various precursors are not required to be dissolved in advance and then dried by freezing or evaporating so as to be uniformly mixed, and a metal element can be uniformly doped only by controlling a heating program, so that the obtained material has relatively high ability of catalyzing PMS to degrade PPCPs pollutants in water.

Provided are lithium transition metal composite particle including a lithium transition metal oxide particle, a metal-doped layer formed by doping the lithium transition metal oxide particle, and LiF formed on the lithium transition metal oxide particle including the metal-doped layer, a preparation method thereof, and a lithium secondary battery including the lithium transition metal composite particles.

A single-cell-thickness nano porous cobalt oxide nanosheet array electrocatalytic material is characterized in that a metal-doped cobalt oxide primary nanosheet array is perpendicularly grown on a conductive substrate, a porous nanosheet is obtained from each primary nanosheet, and the nanosheets are of porous structure; the material is used as an electrocatalyst for oxygen evolution reaction; the material also has excellent hydrogen evolution performance and may function as a bifunctional catalyst for an alkaline full-decomposition water system. The invention has the advantages that the material can effectively reduce overpotential and peaking potential of oxygen evolution reaction, increase conversion rate of single cobalt atoms and operate stably and continuously in a strong alkali environment; the material has excellent oxygen evolution reaction performance and can be applied as an anode and cathode of a full-decomposition water system, effectively reducing trough voltage; the material is simple to prepare, convenient to operate, low in cost and environment-friendly, and new idea and strategy are provided for the guide design and performance optimization of the bifunctional catalyst for the full-decomposition water system.