An apparatus for manufacturing a polysilicon rod comprising: a core wire 1 on which polysilicon is deposited; a core wire electrode 60 provided to penetrate a bottom plate 80; an adjustment member 10 provided between the silicon core wire 1 and the core wire electrode 60, and movable with respect to the bottom plate 80; and a cooling part capable of cooling the adjustment member 10.

Methods of fabricating fiber structures with embedded sensors are provided. The method includes obtaining a scaffold fiber and forming, by 1½-D printing using laser induced chemical vapor deposition, circuitry on the scaffold fiber to provide a fiber structure with embedded sensor. The forming includes printing a solid state oscillator about the scaffold fiber, and printing a sensing device about the scaffold fiber electrically coupled to the solid state oscillator to effect, at least in part, oscillations of the solid state oscillator. The forming further includes printing an antenna about the scaffold fiber electrically connected to the solid state oscillator to facilitate in operation wireless transmitting of a signal from the fiber structure with embedded sensor.

A method and apparatus for preparing boron nitride nanotubes (BNNTs) according to an embodiment may ensure mass-production, may increase yield by reducing a production time, and may prepare BNNTs with high purity.

The system and method includes the suspension of a free-standing carbon article within a reaction chamber, the introduction of the chemical precursor in a reaction environment within the chamber, and heating of the carbon article in the presence of the chemical precursor leading to deposition in a site-specific manner.

Filled carbon nanotubes (CNTs) and methods of synthesizing the same are provided. An in situ chemical vapor deposition technique can be used to synthesize CNTs filled with metal sulfide nanowires. The CNTs can be completely and continuously filled with the metal sulfide fillers up to several micrometers in length. The filled CNTs can be easily collected from the substrates used for synthesis using a simple ultrasonication method.

The invention discloses equipment and preparation method for open and continuous growth of a carbon nanomaterial. The equipment comprises a metal foil tape feeding system, a CVD system and a collection system. The method includes continuously conveying a metal foil tape pretreated or not into the CVD system via the metal foil tape feeding system, depositing a required carbon nanomaterial on the surface of the metal foil tape by CVD, directly collecting by the collection system or directly post-treating the carbon nanomaterial by a post-treatment system, and even directly producing a end product of the carbon nanomaterial. All the systems in the invention are arranged in the open atmosphere rather than an air-isolated closed space. The invention can realize round-the-clock continuous operation to greatly improve the production efficiency of carbon nanomaterials.

3D bundle-shaped multi-walled carbon nanotubes and preparation method, includes the following steps: uniformly mixing bi-component alloy catalyst and transition metal in an inert gas environment in order to obtain a three-component nano-intermetallic alloy catalyst; disposing the intermetallic catalyst on the substrate; allowing hydrogen to flow through the substrate, and heating the substrate to a first temperature, and using the hydrogen to undergo a reduction of the intermetallic catalyst at the first temperature; applying a protective gas and a carbon source gas, heating the substrate to a second temperature, undergoing a reaction at the second temperature to generate the 3D bundle-shaped multi-walled carbon nanotubes, and collecting the 3D bundle-shaped multi-walled carbon nanotubes after annealing; wherein the second temperature is greater than or equal to the first temperature; a working electrode includes conductive drain material, a conductive bonding gent and a plurality of 3D bundle-shaped multi-walled carbon nanotubes.

The present invention provides a method of forming a self-rolled metallic nanosheet. The method includes providing a bendable polymeric substrate and forming a hydrogel-based separation layer on the bendable polymeric substrate. A thin-film metallic nanosheet is deposited on the hydrogel-based separation layer, the thin-film metallic nanosheet having a thickness of approximately 150 nm or less to form a nanosheet-hydrogel-polymer composite. Channel cracks are induced in the nanosheet-hydrogel-polymer composite. The hydrogel layer is swelled to delaminate the metallic nanosheet employing the induced channel cracks to form one or more nano-morphology structures selected from scroll morphology, ribbon morphology, spiral morphology, or helix morphology.

A method and apparatus for preparing boron nitride nanotubes (BNNTs) according to an embodiment may ensure mass-production, may increase yield by reducing a production time, and may prepare BNNTs with high purity.

A seed layer for inducing nucleation to form a layer of material is described. In an embodiment, the seed layer comprising a layer of two-dimensional monolayer amorphous material having a disordered atomic structure adapted to create localised electronic states to form electric potential wells for bonding adatoms to a surface of the seed layer via van der Waals interaction to form the layer of material, wherein each of the electric potential wells has a potential energy larger in magnitude than surrounding thermal energy to capture adatoms on the surface of the seed layer. Embodiments in relation to a method for forming the seed layer, a heterostructure comprising the seed layer, a method for forming the heterostructure comprising the seed layer, a device comprising the heterostructure and a method of enhancing vdW interaction between adatoms and a surface of the seed layer are also described.