60results about How to "Good optical transmission" patented technology

A method for reducing shunt-related defects is described for hydrogenated amorphous silicon (a-Si:H) thin film photovoltaic modules with thin active a-Si:H absorber as required by building integrated photovoltaic windows and sun-roofs with adequate transmission of sunlight. Without shunt-passivation, p-i-n type large area photovoltaic modules with very thin a-Si:H i-layer will suffer excessive performance, yield, and reliability losses due to electrical shorting through i-layer defects. Wide-bandgap a-Si:H based alloy films of sufficient resistivity are deposed between the active solar cell and the conductive back electrode to provide a barrier to leakage current flow. Such a-Si:H based barrier films of high optical transparency are dummy films that do not directly contribute to energy conversion. The shunt-passivation films are entirely produced by the same conventional manufacturing process for a-Si:H photovoltaic devices without invoking complicated or exotic materials or procedures proposed in prior arts.

A pretreatment method for use in manufacturing an improved optical component comprises (i) providing a polymeric optical substrate; and (ii) exposing the polymeric optical substrate to electromagnetic energy having a wavelength of about 30 nm to about 350 nm. The exposure of the polymeric optical substrate to the electromagnetic energy substantially improves adhesion between the substrate and an optical coating deposited onto the substrate following pretreatment. The invention addresses the significant need for coated plastic optics by providing a method to achieve reliable adhesion of optical coatings placed on polymeric optical substrates. Specifically, this invention enables improved adhesion for even highly curved or shaped parts which have been historically more difficult to coat. The pretreatment method is particularly useful for molded substrates such as molded polymethylmethacrylate.

A tandem OLED includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein each organic electroluminescent unit includes at least one light-emitting layer, and an intermediate connector disposed between each adjacent organic electroluminescent unit, wherein the intermediate connector includes at least a high work function metal layer having a work function of no less than 4.0 eV and a metal compound layer, wherein the intermediate connector has a sheet resistance of higher than 100 kΩ per square, and wherein the high work function metal layer improves the operational stability of the OLED.

To provide a material capable of obtaining a transparent conductive film having an excellent conductivity, Optical transmission, Environmental reliability, suitability for process, adhesion and hardness in a single application process, and to provide a transparent conductive film using the same and a device element using the same. A coating forming composition containing at least one kind selected from the group of metal nanowires and metal nanotubes as a first component, a polymer compound having a hydroxyl group as a second component, a compound having a group 13 element or a transition metal element as a third component, and further a solvent is prepared to obtain a transparent conductive film by the coating.

A tandem OLED includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein each organic electroluminescent unit includes at least one light-emitting layer, and an intermediate connector disposed between each adjacent organic electroluminescent unit, wherein the intermediate connector includes at least a high work function metal layer having a work function of no less than 4.0 eV and a metal compound layer, wherein the intermediate connector has a sheet resistance of higher than 100 kΩ per square, and wherein the high work function metal layer improves the operational stability of the OLED.

The present invention provides a hydrogel capable of being used for marine antifouling, a preparation method and uses thereof. According to the present invention, the hydrogel does not swell while other gels such as acrylic acid, clay, acrylamide and the like swell heavily; the hydrogel can completely restore to the original state after water loss while other hydrogels such as a PVA gel cannot berecovered; the compression resistance of the gel of the present invention can remain unchanged after dehydration-rehydration circulation, the gel of the present invention has good stability under different shear frequencies at different temperatures, and the hydrogel is transparent while other oil hydrogels are less transparent; and the gel of the present invention has excellent biofouling performance.

This invention provides an optically transparent electrically conductive layer with a desirable combination of low electrical sheet resistance and good optical transparency. The conductive layer comprises a multiplicity of magnetic nanostructures in a plane, aligned into a plurality of roughly parallel continuous conductive pathways, wherein the density of the magnetic nanostructures allows for substantial optical transparency of the conductive layer. The magnetic nanostructures may be nanoparticles, nanowires or compound nanowires. A method of forming the conductive layer on a substrate includes: depositing a multiplicity of magnetic nanostructures on the substrate and applying a magnetic field to form the nanostructures into a plurality of conductive pathways parallel to the surface of the substrate. The conductive layer may be used to provide an enhanced silicon to transparent conductive oxide (TCO) interface in thin film silicon solar cells.

The present invention provides oxide magnetic semiconductor film with adjustable electronic transport properties and manufacture method thereof, which belongs to information technology rotating electron material field. The series oxide magnetic semiconductor film displays common electric transport property: material with low electric resistivity being Mott range transition resistor, material with middle electric resistivity being hard Efros range transition resistor, material with high electric resistivity being hardgap resistor. The super thin iron magneto- metallic layer and the wide forbidden region oxide semiconductor layer are alternating deposited on substrate by using the method of magnetron sputtering or pulsed laser depositing through accurate control partial pressure of oxygen in film preparation process to regulate electric transport property of material. Electric transport property of oxide magnetic semiconductor film is only related to concentration of oxygen vacancy in material.

This invention pertains to a BGG glass material with excellent optical and mechanical properties and to a method for its preparation characterized by the use of a halogen component. The BGG glass material is essentially devoid of water, has excellent optical transmission in the visible and mid-infrared wavelength range, and can be easily molded in small and large sizes and complex shapes at a low cost.

The invention provides a process of preparing graphene. According to the technical scheme, a radio frequency-plasma enhanced chemical vapor deposition (RF-PECVD) method is employed, wherein a polycrystal cobalt thin film prepared from a magnetron sputtering sputter coating system is employed as a substrate. At a low substrate temperature (800 DEG C) and low gas total flow quantity (78 sccm) and for a short deposition time (40 s), graphene having 1-5 carbon atom layers and being high quality is prepared successfully. The RF-PECVD allows the graphene to be prepared at low reaction temperature, for short deposition time and with less carbon resource, thereby greatly reducing the production cost of graphene and laying a foundation of promoting industrial application of the graphene. The graphene has high specific surface area, high optical transparency, high electric conductivity and high flexibility, so that the graphene has wide application value in the fields of electronic devices and optical devices.

The present invention provides a silver nanowire transparent conductive thin film and a preparation method thereof. The silver nanowire transparent conductive thin film comprises a substrate as well as a silver nanowire coating and a titanium oxide coating sequentially covering the substrate; and the titanium oxide coating and silver in the silver nanowire layer form a structure similar to Ag-Ti alloy valence bond. According to the silver nanowire transparent conductive thin film and the preparation method thereof, the titanium oxide layer (TiOx) is introduced, and the titanium oxide layer and the silver in the silver nanowire layer form the structure similar to the Ag-Ti alloy valence bond, and therefore, on the one hand, electrical effective connections between silver nanowires can be enhanced, and the functions of a binder are realized, and the uniformity of the electric conduction of the transparent conductive thin film can be increased, and on the other hand, the optical transmittance of the TiOx layer is excellent, the transmittance of the thin film will not be decreased significantly; and the TiOx layer can protect the silver nanowire transparent conductive film thin from being oxidized, so that the stability of the thin film can be improved.

An integrated window design for optical transmission in combustion environments is described. The invention consists of an integrated optical window design that prevents and removes the accumulation of carbon-based particulate matter and gaseous hydrocarbons through a combination of heat and catalysis. These windows will enable established optical technologies to be applied to combustion environments and their exhaust systems.

The invention discloses a soluble polyimide film having flame retardancy and a preparation method. The preparation method comprises the steps that 1, 4-amino phenyl-3-methyl-4-amino phenyl-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-phosphoryl ethane and 2-(3-amino phenyl)-5-amino benzimidazole are dissolved in a polar solvent according to preset proportion; 2, 4,4'-(hexafluoroisopropylidene)diphthalic anhydride is added to the mixed solution according to preset proportion to obtain a polyamide acid adhesive solution; 3, a flat-plate mold is uniformly coated with the polyamide acid adhesive solution, and thermal imidization is performed through programmed heating. The soluble polyimide film (namely a PI film) prepared by means of the preparation method has good thermal stability, excellent optical permeation performance and excellent flame retardancy and solubility, and especially on the aspects of the solubility and flame retardancy, the solubility and flame retardancy of the PI film are obviously improved with increase of the AMADOPPE content of the PI film.

The invention discloses a sample gas pipeline of an aerosol focusing gas circuit in a real-time single aerosol particle detection and analysis instrument. The pipeline comprises a sample gas pipeline body made of glass material and a connecting installing flange, the installing and positioning are realized through tolerance fitting, a clamping ring is fixedly installed, an O-shaped ring or a sealant is used for sealing, the external circle of the sample gas pipeline is processed through a conventional optical processing method, an internal gas circuit through hole is formed through femtosecond laser processing, and the aperture of the through hole can reach micron dimension. The sample gas pipeline is capable of meeting design, assembling-calibrating and processing technology requirements; the processing and residual stress are small; the coaxiality, verticality, sealing and other design and assembling-calibrating requirements are easy to meet; and a pollution status and a cleaning status of the sample gas pipeline can be conveniently checked.

The present invention discloses a process for preparing graphene through RF-PECVD. The technical scheme comprises that: a radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) method is adopted and a polycrystal cobalt film prepared by adopting a magnetron sputtering film plating system is adopted as a substrate to successfully prepare high-quality graphene having 1-5 carbon atom layers at a low substrate temperature (800 DEG C) under less total gas flow rate (78 sccm) within a short deposition time (40 s). The process of the present invention has the following characteristics that: the graphene can be prepared under the conditions of the relatively low reaction temperature, the short deposition time and the less requirement of the carbon source through the RF-PECVD method so as to substantially reduce the graphene preparation cost and establish the foundation for the promotion of the industrial application of the graphene; and the graphene has excellent physical properties of high specific surface area, high optical transmittance, high electrical conductivity, high flexibility and the like, such that the graphene has wide application values in the fields of electronic devices, optical devices and the like.

The invention belongs to the technical field of optoelectronic film preparation, and particularly relates to a method for preparing a Ga2O3 optoelectronic film by adopting an electron beam evaporationtechnique. The method adopts the technical scheme that Ga2O3 high-purity (99.995%) powder is prepared into blank and is sintered in a vacuum condition and then is crushed into granules as plating materials, direct vacuum evaporation is performed on the plating materials by adopting an e-shaped gun, so that the plating materials are gasified into molecules or atoms deposited on substrate materials, and finally, the large-area high-purity Ga2O3 film is obtained by controlling key technological parameters including the deposition rate, the deposition atmosphere and the like. The method has the advantages of low preparation cost, good repeatability, simple technological requirement and good controllability, the obtained film is of an isotropous amorphous structure, in a visible-near infraredrange, the transmittance is high, the absorption is low, and the film is suitable for optical application and has the characteristics of ultraviolet optoelectronic detection, gas sensing and the likeafter being crystallized through post annealing treatment.

A preparation method of MgAlON transparent ceramic powder comprises the following steps: (1), weighing raw materials: according to a certain ratio, weighing Al powder, gamma-Al2O3 powder and MgO powder to obtain mixed powder for later use; (2), performing ball milling dispersion: dispersing the mixed powder obtained in the step (1) in absolute ethanol, and performing ball milling to obtain a slurry; (3), drying the slurry: drying the slurry obtained in the step (2) to obtain dry powder; and (4), reacting for synthesizing: taking the dry powder obtained in the step (3), putting into a crucible,then placing together with the crucible in a high-temperature sintering furnace, inflating flowing nitrogen gas, heating to 1500-1700 DEG C at a heating rate of 5-15 DEG C / min, preserving heat for 1-3 h, and then naturally cooling to obtain the MgAlON transparent ceramic powder. The MgAlON transparent ceramic powder prepared by the preparation method is high in purity and fine in particle size, and is suitable for producing transparent ceramic.

The invention discloses a benzyl starch-castor oil-based polyurethane semi-interpenetrating polymer network material and its preparing method and application, blending castor oil-based polyurethane prepolymer, benzyl starch and 1, 4-butanediol in N, N-dimethyl formylamine to react, then solidifying without adding in solidifying agent at 50-80 deg.C for 4-12 hours and obtaining the product. The new material has good mechanical property, excellent photopermeability and biodegradability as well as simple and convenient producing course. It can act as biodegradable material for paints, apparatuses and films, and has application prospect in the fields of medicine, commodity, chemical industry and environmental protection.

A view port device for a plasma process and a process observation device of a plasma apparatus are provided. The view port device for a plasma process comprises a first substrate portion, a second substrate portion, and a connecting portion. The first substrate portion has a first through hole. The second substrate portion has a second through hole and a second diffusion space. A cross-sectional area of the second diffusion space is larger than that of the second through hole. The connecting portion is disposed between the first substrate portion and the second substrate portion.

The invention relates to a high-cerium-content scandium-doped gadolinium iron garnet magneto-optical crystal as well as a preparation method and application thereof. The magneto-optical crystal with the chemical formula of Gd3-x-yCexCaySczFe5-z-wVWO 12, is grown by adopting an edge-defined film-fed crystal growth method, wherein x is equal to 0.33-0.54, y is equal to 0.02-0.06, z is equal to 0.45-0.96, and w is equal to 0.01. According to the method, the post-processing technology of the crystal can be simplified, the preparation cost of the crystal is reduced, the crystal growth rate is high,the optical uniformity is good, and the centimeter-scale single crystal can be prepared. By doping a proper amount of Sc, stabilization of an RIG garnet structure is facilitated, unit cells are expanded, the doping amount of Ce in the crystal is increased, the magnetism of the crystal is enhanced, and the high-cerium-content scandium-doped gadolinium iron garnet magneto-optical crystal with goodpermeability, strong magnetism and excellent magneto-optical performance is obtained. The crystal material is expected to be practically applied to devices such as magneto-optical isolators, magneto-optical circulators, magneto-optical modulators and the like.

The invention discloses a Tm<3+> single-doped three-photon infrared quantum cutting microcrystalline glass as well as a preparation method and an application thereof. The microcrystalline glass is formed with LaF3 nanocrystal-containing oxofluorogermanate transparent microcrystalline glass as a matrix and Tm<3+> as activating agent ions, and the composition, in a molar ratio, of the microcrystalline glass is 50GeO2-20Al2O3-15LaF3-15LiF-xTmF3, wherein x is greater than or equal to 0.05 and less than or equal to 1.00. During preparation, GeO2, Al2O3, LaF3, LiF and TmF3 are taken as raw materials, and weighing and proportioning the raw materials according to the nominal composition 50GeO2-20Al2O3-15LaF3-15LiF-xTmF3 in the molar ratio, wherein x is greater than or equal or 0.05 and less than or equal to 1.00, and then taking the method of melt quenching in combination with subsequent heat treatment. The microcrystalline glass is capable of effectively absorbing 455-485nm blue light photons to excite the Tm<3+> ions to the energy state 1G4, and also capable of emitting three infrared photos in succession with 3H4 and 3F4 as intermediate energy states. The quantum efficiency of the Tm<3+> single-doped three-photon infrared quantum cutting microcrystalline glass is calculated within the range from 1.59 to 1.61.

The invention relates to aromatic diamine and a preparation method thereof. The structure of the aromatic diamine is as shown in the following formula I, wherein R1 and R2 are independently selected from the group: H atoms, CnH2nCF3 or -C6H5, and n is an integer of 0-10. The aromatic diamine synthesis route is simple, raw materials are relatively cheap and can be easily obtained, and the preparedpolyimide film has good optical transmission and high solubility.

The invention discloses preparation methods of a three-dimensional flexible transparent electrode and a modified inversion solar cell. The preparation method of the three-dimensional flexible transparent electrode comprises the following steps: (1), carrying out plasma treatment on a PET substrate; (2), carrying out magnetron sputtering treatment on the PET substrate after plasma treatment, plating the PET substrate with a lower ZnO film, a AgOx film and an upper ZnO film, and forming a three-dimensional flexible transparent electrode is formed on the PET substrate. The prepared electrode hasa three-dimensional form, so that the transmission distances between electrons and hole pairs in exciton are reduced, the recombination of holes and electrons is reduced effectively, and absorption ofthe sunlight by the light active layer is increased. Moreover, the three-dimensional nanoparticle have good scattering effect on sunlight, so that the transmission path of the sunlight in the activelayer is increased and thus the absorption of the sunlight by the light active layer is enhanced. Therefore, with the electrode having the three-dimensional form, the photoelectric conversion efficiency and stability of the solar cell can be improved.

The invention provides a sealing system with adaptive balance of internal and external pressures. The sealing system is composed of a protective shell for accommodating protected articles and a compression device mutually communicated with the protective shell. When an external pressure changes, a communicating method of the protective shell and the compression device or a structure of the compression device ensures that the internal capacity of the sealing system composed of the protective shell and the compression device under the action of the external pressure changes passively and synchronously, so that the internal pressure and the external pressure are kept consistent all the time. The sealing system is capable of solving the problems of the prior art or existing products and overcoming the defects of the prior art or existing products, completely overturning the recognition on the prior art or existing products, has certain general expansibility, is capable of fully enlarging the use range and user range, brings convenience and happy experience to relevant work and life (leisure / movement experience) and thus has favorable market prospects.

The invention discloses a transparent high-strength fiber material. The preparation method comprises the following steps that: cellulose is dissolved in NaOH-urea aqueous solution or LiOH-urea aqueous solution which is pre-cooled at low temperature to obtain a cellulose solution, and different thicknesses of cellulose hydrogels are prepared by the cellulose solution; water in the cellulose hydrogel is replaced into an organic solvent to obtain a cellulose organic gel; the cellulose hydrogel or the cellulose organic gel is subject to supercritical drying, ambient pressure drying or freeze drying to remove a liquid medium so as to obtain a cellulose aerogel; and the cellulose hydrogel, the organic gel or the aerogel are autoclaved at a temperature of 30-200 DEG C under the pressure of 10-160MPa to obtain the high-strength transparent cellulose material. The cellulose material prepared by the invention has excellent mechanical properties, thermal stability and optical permeability.

The present invention relates to an optical component and others in structure capable of implementing improved compensation for a gain slope. The optical component is equipped with first and second Mach-Zehnder interferometers. The first Mach-Zehnder interferometer is provided with a first temperature controller for controlling a temperature of at least one of a part of an optical main path and a first optical side path, while the second Mach-Zehnder interferometer 42 is also provided with a second temperature controller for controlling a temperature of at least one of a part of the optical main path and a second optical side path. A filter circuit having a wavelength-dependent insertion loss is disposed between the first and second Mach-Zehnder interferometers, and a controller controls the temperatures of the optical paths by use of the first and second temperature controllers on the basis of the insertion loss of the filter circuit, thereby setting a loss for light of a predetermined wavelength propagating between a light input end and a light output end.

The invention discloses a composite optical fiber based on a fluorescence detection system, and a preparation method thereof, and relates to the technical field of composite optical fiber materials. The composite optical fiber comprises: a fiber core rod, wherein the material component of the fiber core rod comprises semiconductor selenium powder; and a fiber core layer, wherein the material of the fiber core layer comprises tetramethrin modified polymethyl methacrylate. The preparation method specifically comprises the following steps: preparing the fiber core rod by adopting a melting pouring method; preparing a composite optical fiber, namely grinding and polishing a modified polymethyl methacrylate bar according to a size requirement; then processing a cylindrical hole in the rod, selecting the fiber core rod with a proper size, and filling the modified polymethyl methacrylate rod tube with the fiber core rod to obtain a composite preform rod; and then carrying out vacuum consolidation at 170-180 DEG C for 1-1.5 h, placing on a standard drawing tower, and drawing to obtain the composite optical fiber. The prepared composite optical fiber is excellent in mechanical property, good in heat resistance and low in water absorption; and the optical transmittance is good, the loss is low, and the application range is widened.

An optical connector includes a lens body including a lens portion, an optical conversion module, and a housing including an accommodation portion having a recessed portion, the optical conversion module combined with the lens body being fitted and assembled into the accommodation portion. The optical conversion module includes a light element disposed at a position facing the lens portion when combining the optical conversion module with the lens body. The housing includes a longitudinal support mechanism. The longitudinal support mechanism includes a reference surface and a pressing rib.