1935 results about "Nanowire" patented technology

The invention relates to the technical field of low-dielectric heat-conducting functional materials, in particular to a nano silicone rubber composite material as well as a preparation method and application thereof. According to the preparation method, a modified vinyl silsesquioxane coupling agent is taken as a bridge, and boron nitride nanosheets, silicon carbide nanowires and the modified vinyl silsesquioxane coupling agent are covalently connected through hydrolysis reaction, so that a heterostructure is constructed, and the nano heat-conducting filler is obtained; the preparation method comprises the following steps: dispersing a nano heat-conducting filler in vinyl silicone oil, and constructing a covalent cross-linked network through addition cross-linking reaction and curing treatment to obtain the nano composite silicone rubber material. According to the processing method, the filling amount, the dielectric constant and the dielectric loss can be reduced, meanwhile, the heat conduction capacity is improved, and the problems that in the prior art, the dielectric constant and the dielectric loss are low due to simple mixing of the boron nitride nanosheets and the silicon carbide nanowires are solved.

The invention provides a diaphragm and a preparation method thereof and a lithium ion battery, the diaphragm comprises a porous support layer and a gradient functional layer, the porous support layer comprises a base membrane with the porosity of 45-60% and active groups modified on the surface of the base membrane, and the gradient functional layer comprises a heat conduction strengthening layer and an ion channel layer, the heat conduction strengthening layer comprises a first polymer and a modified boron nitride nanosheet, and the ion channel layer comprises a second polymer and a solid electrolyte nanowire. The porous supporting layer and the gradient functional layer are overlapped to form the composite diaphragm, so that high thermal stability, high wettability and high ion conductivity are synergistically realized, and formation of lithium dendrites can be inhibited.

The invention provides an aerogel reinforced composite electrolyte thin film for a solid-state lithium battery and a preparation method of the aerogel reinforced composite electrolyte thin film, and belongs to the technical field of composite electrolytes.The thin film comprises a three-dimensional porous aerogel skeleton, a solid-state electrolyte compound and lithium salt nanocrystals; wherein the three-dimensional porous aerogel skeleton is prepared from inorganic oxide nanoparticles and a polymer precursor through a sol-gel method; pores of the three-dimensional porous aerogel skeleton are filled with the solid electrolyte compound, the solid electrolyte compound comprises lithium lanthanum zirconium oxide nanowires and a polyoxyethylene-lithium salt composite matrix, and the lithium lanthanum zirconium oxide nanowires are directionally arranged in the thickness direction of the film; the lithium salt nanocrystals grow on the surface of the pore wall of the three-dimensional porous aerogel in situ; the mass ratio of the aerogel skeleton to the solid electrolyte compound is (1: 3)-(1: 15). According to the thin film, the ionic conductivity, the mechanical strength and the interface stability of the electrolyte are remarkably improved.

The invention relates to an optical probe, in particular to a plasma optical sensing probe for online trace detection of biological threat factors. The sensing probe is composed of a microstructure optical fiber and a nano gold wire; the optical fiber is provided with two micro grooves which are symmetrically distributed, and the gold nanowires are located at the bottoms of the grooves; four inner-layer large air holes and two outer-layer small air holes are formed in the cladding of the optical fiber, and every two of the four inner-layer large air holes form a group and are symmetrically distributed relative to the groove; and the two outer-layer small air holes are symmetrically distributed relative to the micro groove. The radius of the optical fiber is 16 microns; the depth of the micro groove is 8 microns; the radius of the nano gold wire is 500 nm; the radius of each inner-layer large air hole is 4 microns, and among the four inner-layer large air holes, the horizontal circle center distance of the inner-layer large air holes is 13 microns, and the vertical circle center distance of the inner-layer large air holes is 11 microns; and the radius of the small air holes in the outer layer is 1.5 microns. According to the probe, efficient and accurate biomolecule detection is realized, and reliable technical support is provided for early diagnosis and timely treatment.

The invention relates to the field of optical protection materials, and provides a transparent film with laser eavesdropping prevention performance and a preparation method thereof.The transparent film is composed of surface-modified doped tungsten oxide nanosheets, amino-isocyanate bifunctional lithium niobate nanowires, urethane acrylate, an ultraviolet light absorber, a silane coupling agent, a dispersing agent and a flatting agent; the molybdenum-doped tungsten oxide nanosheets are obtained through silane coupling modification after hydrothermal synthesis, and the lithium niobate nanowires are prepared through a gradient modification process of hydrothermal synthesis-silane coupling-isocyanate grafting-phenol end capping. A modified nano material is uniformly dispersed in a resin matrix through an ultrasonic dispersion composite technology, and through blade coating forming, ultraviolet curing and constant-temperature and constant-humidity post-treatment, compared with the prior art, the scheme overcomes the problems that a traditional protective film is insufficient in optical transparency, laser eavesdropping prevention function and dynamic viscoelasticity, and is suitable for the field of high-end security and protection.

The invention provides conductive paste, a solar cell, a preparation method of the solar cell and a photovoltaic module. The conductive paste comprises the following components in parts by weight: 70-85 parts of silver powder, 3-8 parts of glass powder, 0.1-2 parts of an additive and 12-25 parts of an organic carrier, wherein the silver powder comprises spherical silver powder and flaky silver powder; the glass powder is prepared from the following components in parts by weight: 65 to 75 parts of Bi2O3, 18 to 25 parts of TeO2 and 8 to 12 parts of V2O5; the additive is a carbon material and / or conductive metal oxide nanoparticles; the organic carrier comprises an infrared absorbing material; the infrared absorption material is selected from any one or more of copper phthalocyanine, a polyaniline-carbon nanotube compound and a tungsten oxide nanowire. The conductive paste can improve the conductivity of the conductive paste and improve the efficiency of the conductive paste in a laser sintering process, so that the contact resistivity is reduced, and the photoelectric conversion efficiency of a photovoltaic solar cell is improved.

The invention discloses a quasi one-dimensional (TaSe4) 2I and two-dimensional MoTe2 mixed-dimensional heterojunction phototransistor detector and a preparation method thereof, the detector sequentially comprises a Si substrate, a SiO2 gate dielectric layer, a quasi one-dimensional (TaSe4) 2I and two-dimensional MoTe2 nano film from bottom to top, the quasi one-dimensional (TaSe4) 2I and MoTe2 nano film are respectively provided with a metal electrode, and a heterostructure of the (TaSe4) 2I, the MoTe2 and the metal electrodes is formed. The preparation method comprises the following steps: (1) transferring the (TaSe4) 2I nanowire to the Si substrate; (2) transferring the MoTe2 nano film to one side of the (TaSe4) 2I nanowire; (3) preparing a pattern of a bottom electrode; (4) positioning, exposing and developing the pattern of the bottom electrode to expose the electrode part needing to be evaporated; and (5) preparing a metal electrode. According to the invention, the composite effect of a (TaSe4) 2I / MoTe2 heterojunction is utilized, and dark current is inhibited through a vertical structure; moTe2 is utilized to increase light absorption, and meanwhile, grid voltage is applied, so that light current is improved, and high responsivity and external quantum efficiency are obtained.

The invention relates to a titanium oxide nanowire supported iridium catalyst as well as a preparation method and application thereof. The catalyst comprises a titanium oxide nanowire carrier and elemental iridium supported on the titanium oxide nanowire carrier. According to the catalyst, the titanium oxide nanowire is used as a carrier, and the catalyst prepared by loading elemental iridium on the titanium oxide nanowire is used as an anode catalyst, so that higher mass specific activity and lower oxygen evolution overpotential can be obtained; the membrane electrode prepared by using the composite material has the characteristics of low noble metal catalyst loading capacity and low electrolytic water decomposition voltage.

Integrated circuit structures having varied internal spacers and epitaxial source or drain structures are described. In an example, an integrated circuit structure includes first, second and third pluralities of horizontally stacked nanowires or fins, and first, second and third gate stacks. A first epitaxial source or drain structure is between the first plurality of horizontally stacked nanowires or fin and the second plurality of horizontally stacked nanowires or fin, the first epitaxial source or drain structure between first internal spacers having a maximum lateral width. A second epitaxial source or drain structure is between the second plurality of horizontally stacked nanowires or fin and the third plurality of horizontally stacked nanowires or fin, the second epitaxial source or drain structure between second internal spacers having a maximum lateral width greater than the maximum lateral width of the first internal spacers.

The invention discloses a high-conductivity carbon-coated lithium iron phosphate positive electrode material and a preparation method thereof, and relates to the technical field of lithium iron phosphate positive electrode materials, the high-conductivity carbon-coated lithium iron phosphate positive electrode material comprises a spherical lithium iron phosphate matrix, modified lithium niobium vanadate uniformly coating the exterior of the nanoscale spherical lithium iron phosphate matrix, and a composite carbon layer uniformly coating the exterior of the modified lithium niobium vanadate; wherein the spherical lithium iron phosphate matrix has a smaller specific surface area, so that the reduction of side reaction is facilitated, and the interface impedance can be reduced; the modified lithium niobium vanadate can improve the electronic conductivity of the positive electrode material and the diffusion rate of lithium ions; an organic carbon source in the outermost composite carbon layer is carbonized to form a continuous amorphous carbon layer which uniformly coats the surfaces of the particles, so that a basic electron channel is provided, and side reaction of an electrolyte is inhibited; the inorganic carbon source constructs a three-dimensional conductive skeleton, and a long-range conductive network is formed through the bridging effect of nanowires / sheets, so that the interface contact resistance is reduced, and the conductivity of the positive electrode material is improved.

This disclosure is directed toward a method for producing a solid-state battery layer structure. The method may include providing an anode layer comprising silicon, forming a plurality of nanowire structures including silicon and / or gallium nitride on the anode layer and depositing a solid electrolyte layer on the anode layer. In some examples, the method may also include depositing a cathode layer on the solid electrolyte layer, depositing a cathode current collector metal layer on the cathode layer, etching holes through the anode layer, filling the holes with an electrically conducting material; and depositing an anode current collector metal layer on a bottom surface of the anode layer.

The invention belongs to the technical field of catalyst preparation, focuses on a high-entropy alloy nanowire catalyst, and mainly relates to a preparation method and application of an AuCuAgPtNi catalyst. A one-pot wet chemical method is innovatively adopted, a 4-aminopyridine solvent and metal precursors of gold, copper, silver, platinum and nickel are fully and evenly mixed and placed in an oil bath pot at the temperature of 90 DEG C, then a reducing agent ascorbic acid is rapidly added, after specific reaction time, washing, drying and other operations are sequentially carried out, and the high-entropy alloy nanowire AuCuAgPtNi catalyst can be successfully prepared. The preparation method disclosed by the invention has the remarkable advantages of simple process, simple steps, convenience in operation and the like. In an alkaline environment, the prepared nanowire-shaped high-entropy alloy AuCuAgPtNi catalyst shows extremely excellent catalytic activity and selectivity for catalytic degradation of waste plastic polylactic acid, the waste plastic can be efficiently upgraded and converted into pyruvic acid, a new way is opened up for resource utilization of the waste plastic, and the application prospect is wide. The method has a wide application prospect in the fields of environmental protection and resource recovery.

The invention discloses a light-moisture dual-curing underwater epoxy coating with a self-repairing function as well as a preparation method and a construction method of the light-moisture dual-curing underwater epoxy coating. The epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (1.5-3.5): 1; the component A is prepared from the following raw materials: bisphenol F type epoxy resin, dynamic disulfide bond modified polysulfide rubber, boron nitride nanosheet and silicon carbide nanowire hybrid filler, a photoinitiator and a silane coupling agent; the component B is prepared from the following raw materials: moisture-cured polyether amine, a boric acid ester bond cross-linking agent and hydrophobic modified graphene oxide. According to the invention, a light-moisture dual-curing mechanism is adopted, ultraviolet irradiation initiates rapid surface curing, and then environmental moisture permeates to complete deep curing. The material provided by the invention has the advantages of rapid curing, excellent self-repairing function, significantly improved underwater adhesion and good thermal conductivity, and provides a new solution for rapid repairing and long-acting protection of underwater structures.

The invention relates to the technical field of polyimide materials, and discloses a polyimide film with a low thermal expansion coefficient and a preparation method thereof, the polyimide film comprises the following raw materials by mass: 6-10 parts of dianhydride, 6-10 parts of diamine, 3-5 parts of a composite reinforcing filler, and 80-120 parts of a polar solvent. The composite reinforcing filler contains a modified layered composite material, and the in-situ synthesized silicon carbide nanowire can be connected with the layered composite material in disordered distribution to form a three-dimensional network structure, so that a heat conduction path is remarkably enhanced, and the thermal expansion coefficient of the polyimide film is reduced; the formed three-dimensional network structure containing the silicon carbide nanowires can absorb and weaken gravitation generated by external force, the mechanical strength is improved, in addition, the composite reinforcing filler comprises bacterial cellulose and chitosan, and can be combined with polyimide resin through hydrogen bonds, so that the composite reinforcing filler is uniformly distributed in the polyimide resin, and the mechanical strength is improved. The prepared polyimide film has excellent heat-conducting property and lower thermal expansion coefficient.

The invention relates to the technical field of electrocatalytic CO2 reduction, and particularly discloses a copper-based electrocatalytic material which comprises a plurality of element-doped copper-based nanowires, and the doped elements are one or more of S, F, Br, N and O. The invention also discloses a preparation method of the copper-based electro-catalytic material, which comprises the following steps: mixing a solution containing the thiophenol ligand with a copper salt solution to obtain a turbid liquid; performing ultrasonic treatment, heating, stirring and aging treatment on the turbid liquid, and then performing centrifugation, washing and drying treatment to obtain a copper-based nanowire precursor; the copper-based nanowire precursor is subjected to roasting; and carrying out in-situ electrochemical activation treatment on the roasted copper-based nanowire precursor. The preparation method is simple and effective, and multi-step doping is not needed. When the copper-based electro-catalytic material is applied to preparation of ethylene through electro-catalytic carbon dioxide reduction reaction, the copper-based electro-catalytic material has high ethylene selectivity and can efficiently and stably work under high current density.

The invention discloses a hybrid integrated optical fiber coupling superconducting nanowire single-photon detector and an implementation method. The detector is directly integrated on the end face of an optical fiber, each layer of superconducting nanowire single-photon detector comprises a superconducting nanowire, electrodes at the two ends and a lower-layer optical cavity, the center of the nanowire is aligned with a fiber core of the optical fiber, and the uppermost layer is integrated with the optical cavity and a reflector; wherein the projections of the nanowires of the same detector are parallel to each other, the nanowires of different detectors are mutually orthogonal in pairs, and the polarization-insensitive superconducting nanowire single-photon detector is obtained after packaging. Or the nanowire projections of each layer of detector are parallel to each other, and the superconductive nanowire single-photon detector with high absorptivity is obtained after packaging. Or all layers of detectors and reflectors are integrated into optical cavities with different thicknesses, and the wide-spectrum superconducting nanowire single-photon detector with multiple central wavelengths is obtained after packaging. According to the invention, a high-performance and multifunctional superconducting nanowire single-photon detector is realized through a hybrid integration process.

The invention discloses a graphite crucible silicon infiltration resistant coating based on a gradient boron nitride-silicon carbide composite structure and a preparation method thereof. The coating is composed of hexagonal boron nitride nanosheets, beta-type silicon carbide nanowires, yttrium aluminum garnet precursor sol and the like, and effective blocking of 1500-1600 DEG C silicon melt is achieved through gradient structural design and an in-situ self-repairing mechanism. The preparation process comprises the steps of h-BN activation, S C carbon layer deposition, slurry mixing and spraying and segmented heat treatment. The molten silicon contact angle of the coating reaches 158 + / -2 degrees at the temperature of 1550 DEG C, through cracks do not exist after 50 times of thermal shock circulation, the coating is effective after being continuously used for 48 batches under the industrial working condition, the problems of silicon infiltration interface adhesion and thermal shock failure of a traditional graphite crucible are solved, and the coating has remarkable industrial application value.

Neighboring gate-all-around integrated circuit structures having disjoined epitaxial source or drain regions, and methods of fabricating neighboring gate-all-around integrated circuit structures having disjoined epitaxial source or drain regions, are described. For example, a structure includes first and second vertical arrangements of nanowires, the nanowires of the second vertical arrangement of nanowires having a horizontal width greater than a horizontal width of the nanowires of the first vertical arrangement of nanowires. First and second gate stacks are over the first and second vertical arrangements of nanowires, respectively. First epitaxial source or drain structures are at ends of the first vertical arrangement of nanowires, and second epitaxial source or drain structures are at ends of the second vertical arrangement of nanowires. An intervening dielectric structure is between neighboring ones of the first epitaxial source or drain structures and of the second epitaxial source or drain structures.

Embodiments of the present application provide an electronic device, a manufacturing method thereof and an electronic device, and relate to the technical field of semiconductors. The electronic device can be used for growing nanowires in a plane. The electronic device can include a substrate and at least one nanowire. The substrate has at least one groove. The nanowire is embedded in the groove. The groove has at least one groove wall. The nanowire extends along one groove wall of the groove and is in contact with the groove bottom. The groove wall has a guiding effect, so that the nanowire can grow in the plane of the groove bottom along the extension direction of the groove wall, which is conducive to large-scale manufacturing of the electronic device. The plane of the groove bottom can be parallel to the surface of the circuit board for carrying the electronic device. Therefore, when the nanowire grows in the plane of the groove bottom, it is conducive to large-scale integration of the electronic device on the circuit board.

The invention discloses a preparation method for regulating and controlling the growth of a hydrophobic Cu2S nanowire material on the surface of a copper foil, and relates to the technical field of solid surface, and the preparation method comprises the following specific steps: 1) reacting the treated copper foil in a NaOH solution and an ammonium persulfate solution for 10-30 minutes, taking out the copper foil, washing the copper foil with absolute ethyl alcohol, and drying the copper foil in a drying oven for 10-30 minutes; and soaking the obtained sample in a silane coupling agent KH-570 (gamma-methacryloxy propyl trimethoxy silane) of which the concentration is 2.5% to 10% for 20 to 60 minutes. (2) reacting the sample obtained in the step (1) in a 0.1-1mol / L Na2S solution for 10-30 minutes, then taking out the sample, and continuously soaking the sample in a silane coupling agent for 20-60 minutes to obtain a hydrophobic Cu2S nanowire on the surface of a copper foil; according to the preparation method for regulating and controlling the growth of the hydrophobic Cu2S nanowire material on the surface of the copper foil, the regulation and control of the hydrophobicity of the Cu2S nanowire on the surface of the copper foil are realized by regulating and controlling the proportion of a silane coupling agent and the like; when the modified hydrophobic Cu2S nanowire is soaked in a silane coupling agent KH-570 with the mass concentration of 2.5%-10%, the contact angle of the modified hydrophobic Cu2S nanowire can reach 91.46 degrees to 129.46 degrees.

The invention relates to a textured KCu7S4 thermoelectric material and a preparation method thereof, and the method comprises the steps: sequentially adding a prepared KOH aqueous solution, CuCl2. 2H2O and Na2S. 9H2O into a high-pressure kettle, and fully stirring for dissolving; dropwise adding an N2H4.H2O aqueous solution into the mixed solution, fully stirring, sealing, transferring to a microwave chemical synthesis instrument, heating, keeping stirring, and reacting at a target temperature and self-generated pressure to generate a KCu7S4 nanowire preferentially growing along a [001] crystal orientation; and after the reaction is finished and natural cooling is carried out, a product is collected through centrifugation, full cleaning and vacuum drying are carried out, and then the KCu7S4 thermoelectric material with [001] preferred orientation in the direction perpendicular to the pressure direction is obtained through spark plasma sintering. According to the method, a surfactant and an organic solvent are not used, and macro, rapid, efficient and controllable preparation of the KCu7S4 nanowire is realized through a low-temperature, low-cost and low-energy-consumption microwave-assisted hydrothermal process.

The invention discloses an optical thin film and a preparation method thereof, and relates to the technical field of optical thin films. The optical thin film comprises a base film, and a low-refractive-index layer and a high-refractive-index layer which are sequentially arranged on the surface of the base film, the high refractive index layer is prepared from TiO2, a Y2O3-CeO2 nanowire and graphene oxide; the low refractive index layer is prepared from mesoporous SiO2 aerogel, a MgF2 nanosheet and polysilazane. The preparation method of the optical thin film comprises the following steps: coating the base film with the low-refractive-index layer by a sol-gel spin-coating method, and coating the low-refractive-index layer with the high-refractive-index layer by aerosol-assisted chemical vapor deposition. The surface of the base film is sequentially coated with the low-refractive-index layer and the high-refractive-index layer, so that an antireflection effect is formed, and the surface reflectivity is reduced; the comprehensive performance of high light transmission, low reflection, bending resistance, environmental aging resistance and the like is realized.

The invention relates to the technical field of battery solid electrolyte, in particular to a method for constructing polyethylene oxide-based composite solid electrolyte by sub-nanowires. According to the specific technical scheme, the method comprises the following steps: (1) sub-nanowire surface grafting modification: dispersing sub-nanowires in a weak polar solvent, then adding a sulfhydryl compound and a photoinitiator, and reacting for 4-10 hours under the conditions of ultraviolet irradiation and ice bath; and (2) construction of the composite solid electrolyte: dissolving polyethylene oxide, a lithium salt and the sub-nanowire modified in the step (1) in a polar solvent, uniformly stirring, casting to form a film, and drying at normal temperature. According to the invention, the problems of poor filler dispersity, low size matching degree, insufficient interfacial compatibility and the like in the traditional composite electrolyte are solved.

Spiral inductors, magnetic field sensors incorporating the spiral inductors, and methods of using the magnetic field sensors are provided. The spiral inductors include an electrically conductive spiral coil and a nitrogen vacancy (NV) diamond substrate. A thin barrier layer of a dielectric material separates the spiral coil from the surface of the NV diamond substrate and an overlayer of dielectric material is disposed over the spiral nanocoil. The integration of the spiral coil with an NV substrate in this manner creates a highly enhanced magnetic transduction and produces a simple, high-performance way to control and read out electromagnetic signals. Because the spiral inductors enable electromagnetic-to-optical signal conversion, they can be used as sensors for environmental or biomedical applications and spin-based computation.

Gate-all-around integrated circuit structures having oxide sub-fins, and methods of fabricating gate-all-around integrated circuit structures having oxide sub-fins, are described. For example, an integrated circuit structure includes an oxide sub-fin structure having a top and sidewalls. An oxidation catalyst layer is on the top and sidewalls of the oxide sub-fin structure. A vertical arrangement of nanowires is above the oxide sub-fin structure. A gate stack is surrounding the vertical arrangement of nanowires and on at least the portion of the oxidation catalyst layer on the top of the oxide sub-fin structure.

The application discloses a cross-linked ETFE composite film with gradient ultraviolet shielding function and a preparation method and application thereof, and belongs to the technical field of ETFE film preparation. The cross-linked ETFE composite film is composed of three layers of a surface layer, a middle layer and a bottom layer. The surface layer material comprises ETFE resin and fluorinated carbon quantum dots; the middle layer material comprises ETFE resin, allyl-containing comonomer A and phenyl-containing comonomer B; and the bottom layer material comprises ETFE resin and CeO2 nanowires. The fluorinated carbon quantum dots have a particle size of 3-5 nm and contain a -C4F9 structure. The comonomer A is an allyl-containing fluorine olefin monomer, and the comonomer B is a phenyl-containing organic fluorinated compound. Through the synergistic effect of the surface layer self-migration fluorinated carbon quantum dots, the middle layer copolymerization modification and the bottom layer CeO2 nanowires, high light transmittance, full-waveband ultraviolet shielding and long-term weather resistance are achieved.

The invention discloses a temperature control system and method of a micro-fluidic chip, and relates to the technical field of micro-fluidic temperature control, and the method comprises the following steps: in the manufacturing process of the micro-fluidic chip, embedding topological insulator nanowires into a substrate in a directional arrangement mode to form a pre-locking array, and meanwhile, generating an anisotropic heat conduction network under the continuous action of a sound-magnetic field, a topological vortex invariant is calculated, and a heat conduction weight coefficient is generated; arranging a fluorescent layer on the surface of a micro-reaction cavity of the anisotropic heat conduction network, collecting a fluorescence lifetime attenuation curve in real time, and calculating a transient temperature value and a temperature change rate according to a heat conduction constraint variation model and a heat conduction weight system; nonlinear feed-forward compensation power is calculated according to the transient temperature value and the temperature change rate, feedback compensation power is calculated in combination with a deviation field of the target temperature and the real-time temperature, and a compensation power instruction is generated; according to the method, the thermal pilot frequency domain filtering function is constructed through the compensation power instruction, so that the uniformity and response speed of thermal response are improved.

Integrated circuit structures having direct backside source or drain contacts are described. In an example, an integrated circuit structure includes first and second pluralities of horizontally stacked nanowires or fins, and first and second gate stacks. An epitaxial source or drain structure is between the first plurality of horizontally stacked nanowires or fin and the second plurality of horizontally stacked nanowires or fin, the epitaxial source or drain structure over and electrically coupled to a corresponding conductive backside contact that extends laterally beyond the epitaxial source or drain structure without contacting the first gate stack or the second gate stack.

The invention relates to the technical field of solid-state lithium ion batteries, in particular to a composite solid-state electrolyte diaphragm, a preparation method and an all-solid-state battery. According to the invention, a 3D ion / electron channel is constructed through a cellulose skeleton, an oxide electrolyte nanowire directional arrangement technology is adopted, and an in-situ interface lithium fluoride repairing layer is adopted, so that the industrialization bottleneck that high ion conduction-mechanical strength-interface stability is difficult to collaboratively optimize in the prior art is broken through; the common problems of insufficient bulk phase and interface ion conductivity, poor mechanical strength, poor compatibility with a high-nickel positive electrode / silicon carbon negative electrode and the like of a solid-state battery are effectively solved. The mass energy density of the prepared all-solid-state battery can reach 360 Wh / kg, the capacity retention ratio can still be maintained at 80% or above after 1100 times of circulation, and the all-solid-state battery successfully passes 190 DEG C thermal runaway and acupuncture tests and shows excellent safety performance and wide industrial application prospects.

Integrated circuit structures having void-free internal spacers, and methods of fabricating integrated circuit structures having void-free internal spacers, are described. For example, an integrated circuit structure includes a stack of horizontal nanowires. A gate structure is vertically around the stack of horizontal nanowires, the stack of horizontal nanowires extending laterally beyond the gate structure. An internal gate spacer is between vertically adjacent nanowires of the stack of horizontal nanowires and laterally adjacent to the gate structure. An epitaxial source or drain structure is coupled to an end of the stack of horizontal nanowires and in contact with the internal gate spacer. A dielectric structure is beneath and in contact with the epitaxial source or drain structure, the dielectric structure including a same material as the internal gate spacer, and the dielectric structure not including a seam therein.