13 results about "Thermal deposition" patented technology

The application relates to a preparation method of a diffused island-shaped vanadium dioxide thermochromic film. The preparation method comprises the following steps: a precursor forming step: forming a vanadium oxide film with a thickness of 20-100 nm as a precursor on the surface of a substrate by a magnetron sputtering method, a thermal deposition method or a laser-induced vapor deposition method; a pretreatment step: heating the film to 600-950 DEG C at a temperature increasing rate of more than 80 DEG C / min in an annealing furnace with a pressure of 50 mTorr or less, then keeping the temperature for 5-30 min, and then cooling the film to 300-450 DEG C in the furnace to form the film into a diffused island shape; and an oxidation step: introducing oxygen into the annealing furnace to oxidize the film to obtain a vanadium dioxide film. The film prepared by the preparation method of the vanadium dioxide thermochromic film has good sunlight modulation efficiency and good light transmittance.

The application relates to a NiOOH / Ti-P-O nanotube array photoanode and a preparation method and application thereof. The preparation method comprises the following steps: S1, pretreated Ti sheets are sequentially subjected to anodic oxidation treatment and crystallization treatment to obtain a Ti-O nanotube array photoanode; S2, the Ti-O nanotube array photoanode is subjected to phosphating treatment, and a Ti-P-O nanotube array photoanode is obtained after cooling; and S3, the Ti-P-O nanotube array photoanode is immersed in a mixed solution containing a nickel source and urea for thermal deposition to obtain a NiOOH / Ti-P-O nanotube array photoanode. The NiOOH / Ti-P-O nanotube array photoanode can be widely applied to the field of photoelectrocatalytic water splitting. Compared with the prior art, the application provides a controllable preparation method with short time consumption, and the prepared product significantly enhances photoelectrochemical activity and improves photoelectrocatalytic efficiency.

A composition is used in a process for depositing a silicon oxide film or a carbon doped silicon oxide film using a deposition process, wherein the composition includes at least one silicon precursor having a structure represented by Formula I as described herein

According to the method, an auxiliary solvent N, N-dimethylacetamide (DMAC) is added into a precursor solution for hydrothermal deposition of the antimony sulfide thin film to adjust the deposition rate, so that the thickness of the thin film is optimized, the morphology of the thin film is improved, the crystallinity is improved, the defect density of the thin film is reduced, and the performance of a device is improved. The antimony sulfide solar cell comprises a conductive substrate (including FTO and the like), an electron transport layer, an antimony sulfide solar cell absorption layer and a counter electrode. The DMAC can promote grain polymerization of the antimony sulfide thin film, increase the grain size and reduce electric leakage channels of the solar cell. And DMAC has the effect of adjusting the deposition rate, so that the reaction is slower to obtain a more appropriate thickness of the absorption layer. By constructing an effective antimony sulfide thin film solar cell structure, the device performance of the antimony sulfide solar cell is improved.

The invention relates to a photoinduced thermoelastic spectrum gas detection device based on incoherent fixed spectrum excitation, which comprises an incoherent light source module used for generating incoherent light with controllable power and light intensity modulation depth; the optical shaping module is used for shaping the incoherent light beam and effectively coupling the incoherent light into the sampling module; the gas absorption module is internally provided with a gas accommodating cavity for storing to-be-detected gas; the uncorrelated light is absorbed by the gas to be detected and then forms periodic thermal deposition on the sampling module, and the sampling module is used for collecting thermal elastic stress generated by the periodic thermal deposition and converting the thermal elastic stress into an electric signal; and the signal amplification and demodulation module is used for extracting and demodulating the electric signals acquired by the sampling module. The incoherent fixed spectrum light source is more uniform in light field distribution, wide spectrum output can cover a plurality of absorption peaks in a fixed spectrum range, and the incoherent fixed spectrum light source is insensitive to wavelength drift.

Sleeves that can be disposed on either end of a bushing to improve the wear characteristics and usable lifetime of the bushing is disclosed. During the use of the bushing, such as when a machine including the bushing is operated, the sleeves may be in primary contact with abrasive elements (e.g., other parts of the machine, dirt, rock, etc.) and wear, while the underlying bushing is protected, at least in part, from wear and tear. The sleeves may include a bulk material, such as steel, with a hard coating thereon, such as hard chromium, tungsten carbide, or the like. The hard coating may be formed by any variety of processes, such as electroplating, plasma deposition, thermal deposition, or the like. In some cases, the sleeves, after being worn from use, may be replaced or refurbished to further extend the lifetime of the bushing.

The invention relates to a reflective fluorescent glass converter with heat dissipation through holes as well as a preparation method and application of the reflective fluorescent glass converter. The reflection type fluorescent glass converter comprises a heat dissipation substrate (4), a reflection layer (3), a fluorescent glass layer (2) and a scattering layer (1) which are stacked and arranged layer by layer, a penetrating heat dissipation through hole array is arranged on the heat dissipation substrate (4), and each heat dissipation through hole (5) is filled with high heat conduction metal. The heat dissipation performance of the fluorescent glass layer (2) is effectively improved through the heat dissipation through hole array and the filled high-heat-conduction metal, and the scattering layer (1) covering the surface of the fluorescent glass layer (2) is combined to assist heat conduction and heat dissipation. The problem that a single-side heat dissipation structure of a traditional reflection type fluorescent glass converter is prone to generating thermal deposition on the outer surface away from the heat dissipation substrate (4) under the high-power condition is thoroughly solved. The reflective fluorescent glass converter has the advantages of high light-emitting saturation threshold, high light extraction and the like, and can be applied to the fields of high-power laser illumination, laser display and the like.

A method of depositing a silicon nitride film is presented. The method comprises heating a substrate having a first surface region of a first composition and a second surface region of a second composition. The substrate is exposed to an inhibitor that selectively bonds to the first surface region of the first composition. The substrate is exposed to a silicon-containing precursor and to a nitrogen-containing precursor to thermally deposit the silicon nitride film on the second surface region. The inhibitor inhibits deposition of the silicon nitride film on the first surface region.

The invention discloses a gain optical fiber, which belongs to the technical field of optical fiber lasers and comprises a fiber core, a first inner cladding, a second inner cladding, a quartz layer and a coating layer of which the outer diameters are sequentially increased from inside to outside. The fiber core is doped with rare earth ions serving as gain ions; the first inner wrapping layer wraps the circumference of the fiber core, the outer diameter of the first inner wrapping layer is arranged along the axial direction of the fiber core in a single trend reducing mode, and the first inner wrapping layer is made of fused quartz materials; the second inner wrapping layer wraps the first inner wrapping layer in the circumferential direction, and the second inner wrapping layer is made of fluorine-containing silicon-based quartz; the quartz layer is arranged in the circumferential direction of the second inner cladding layer; and the coating layer coats the periphery of the quartz layer. The optical fiber structure has the advantages of being low in quantum loss, weak in thermal deposition effect, uniform in axial temperature distribution, high in mode unstable threshold value and the like, and under the same parameter condition, the optical fiber structure can achieve the laser output performance with higher output power and better light beam quality.

The application discloses a low-temperature synthesis method of a long-acting self-sterilizing coating and belongs to the technical field of inorganic nano-coating low-temperature curing manufacturing. + -(Ti(O2)) 2‑ Preparation of a complex precursor solution; (2) spraying of the Ag + -(Ti(O2)) 2‑ complex precursor solution; (3) baking, curing and obtaining of a high-temperature-intolerant treatment substrate with a low-temperature deposited nano-silver-titanium dioxide coating by using the cured Ag + -(Ti(O2)) 2‑ complex precursor solution coating prepared in the above steps. The application breaks through the limitation that the traditional high-temperature thermal deposition titanium dioxide nano-coating technology cannot be applied to high-temperature-intolerant substrate materials, realizes low-temperature deposition of a nano-silver-titanium dioxide coating capable of absorbing visible light on the surface of a high-temperature-intolerant substrate material, and the low-temperature deposited nano-silver-titanium dioxide coating has a long-acting antibacterial self-sterilizing function on the surface of the substrate material.

Sleeves (402) that can be disposed on either end of a bushing (204) to improve the wear characteristics and usable lifetime of the bushing (204) is disclosed. During the use of the bushing (204), such as when a machine (100) including the bushing is operated, the sleeves (402) may be in primary contact with abrasive elements (e.g., other parts of the machine, dirt, rock, etc.) and wear, while the underlying bushing (204) is protected, at least in part, from wear and tear. The sleeves (402) may include a bulk material, such as steel, with a hard coating (412) thereon, such as hard chromium, tungsten carbide, or the like. The hard coating (412) may be formed by any variety of processes, such as electroplating, plasma deposition, thermal deposition, or the like. In some cases, the sleeves (402), after being worn from use, may be replaced or refurbished to further extend the lifetime of the bushing (204).