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79results about How to "High Visible Light Transmission" patented technology

Vanadium dioxide precursor liquid and method for preparing thin-film material by using the same

The invention belongs to the technical field of material chemistry, in particular relates to a vanadium dioxide precursor liquid and a method for preparing a thin-film material by using the same. The vanadium dioxide precursor liquid of the invention comprises a soluble vanadium salt, a film forming accelerator and a solvent. The invention further provides a method for preparing a vanadium dioxide thin film by using the vanadium dioxide precursor liquid. The invention overcomes the shortages of the prior preparation technique of liquid-phase vanadium dioxide, reduces the cost of raw materials, and can previously reduce or oxidize the vanadium raw material in the raw materials to quadrivalence so that vanadium element is not necessarily subjected to an oxidation-reduction reaction in the process of thermal treatment. The vanadium dioxide thin film prepared by the invention has uniform phase, good purity and intelligent response to temperature. The vanadium dioxide thin film prepared ona glass substrate has a light transmittance peak value up to 70% at most in a visual light region and an infrared light regulating performance up to 60% at most, and has wide application prospect in the fields of optical functional materials and electric functional materials.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI

Visible light anti-reflection and ultraviolet radiation cut-off bifunctional coated glass and preparation method thereof

The invention discloses a coated glass with the double functions of visible light reducing reflection and ultraviolet radiation cutting-off and the preparation method thereof. A film layer structure of the coated glass is glass uropatagia/ titanium oxide- cerium oxide film/silicon dioxide layer with a plurality of holes, or silicon dioxide layer with a plurality of holes/titanium oxide- cerium oxide film/glass uropatagia/titanium oxide- cerium oxide film/silicon dioxide layer with a plurality of holes. The transmittivity of the visible light is 92 to 98 percent, the ultraviolet radiation cutting-off is larger than or equal to 96 percent. The thickness of the titanium oxide- cerium oxide film layer is 10 to 500nm, the components have the mass ratio that the titanium oxide is 10 to 90 percent, and the cerium oxide is 10 to 90 percent; the thickness of the silicon dioxide layer with a plurality of holes is 20 to 200nm, and the volume of the holes is 10 to 80 percent. The coated glass adopts the preparation method of a single-side spraying process or a double-side dipping and pulling method. Feed liquid for preparing the titanium oxide and the cerium oxide film layer comprises organotitanium and dissolubility cerous salt; the feed liquid for preparing the silicon dioxide layer with a plurality of holes comprises silicon ester, water, and ethanol, and ammonia is used as activator, wherein, the quality of silicon is 1 to 5 percent. The coated glass is performed with the heat treatment under the temperature of 400 to 550 Deg C. The invention can be used as the glass of an autocar, a train, a steamship, buildings and a spotlight.
Owner:WUHAN UNIV OF TECH

Metal nanowire/carbon nanotube composite transparent conducting film and preparation method thereof

The invention relates to a metal nanowire/carbon nanotube composite flexible transparent conducting film and a preparation method thereof. The composite flexible transparent conducting film comprises a flexible transparent substrate, wherein the surface of the flexible transparent substrate is coated with a metal nanowire/carbon nanotube composite conducting layer; metal nanowires form a crossing main conducting network; carbon nanotubes form a branched conducting network; and the branched conducting network is located in a gap of the main conducting network, and connected with the main conducting network. The preparation method of the conducting film comprises the steps of mixing the metal nanowires, the carbon nanotubes, absolute ethyl alcohol or acetone to form a suspension, performing spraying, immersing or transfer printing on the flexible transparent substrate to form a uniform film layer, and finally performing pressing. The method requires no dispersing agent, and is simple in technology, low in cost and easy in scale production; the prepared metal nanowire/carbon nanotube composite flexible transparent conducting film is fewer in conducting network gap, high in visible light transmittance and low in square resistance; the visible light transmittance is greater than or equal to 80%; and the square resistance is less than or equal to 90 ohm/sq.
Owner:JIANGSU UNIV

Preparation methods of gold and silver embedded target and film thereof

The invention relates to preparation methods of a gold and silver embedded target and a film thereof. The gold and silver embedded target contains 10-30 percent of gold and 70-90 percent of silver. When the target is prepared, a pure silver target is used for carrying out magnetron sputtering to obtain a sputtering runway, a gold slot is opened, and then gold is embedded into the gold slot by adopting a press method; and when an alloy film is prepared, gold and silver on the runway of the gold and silver embedded target are sputtered under the condition of magnetron sputtering to be mixed and deposited onto a substrate to form a gold and silver alloy film, wherein the magnetron sputtering is carried out under the conditions that the vacuum degree is 1*10<-3> to 5*10<-3>, the sputtering temperature is 20-40 DEG C, the sputtering rate is 20-200nm / minute, and the air pressure is 0.5-1Pa. In the gold and silver embedded target, gold is used for replacing partial silver on a silver target, and the gold and the silver are combined in an embedding mode, so that the utilization ratio of noble metals is high, the target cost is reduced; and the obtained target has the advantages of tight combination, high sputtering efficiency, stable property and good quality; and a prepared gold and silver alloy film has the advantages of stable property and components, higher visible light transmissivity and far infrared reflectivity than those of pure silver films, and better timeliness.
Owner:ZHENGZHOU UNIV
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