176 results about "Printed electronics" patented technology

Compositions and methods for production of conductive paths can include a printable composition including a liquid carrier and a plurality of nanostructures. The plurality of nanostructures can have an aspect ratio of at least about 5:1 within the liquid carrier. Examples of nanostructures include nanobelts, nanoplates, nanodiscs, nanowires, nanorods, and mixtures of these materials. These printable compositions can be used to form a conductive path on a substrate. The printable composition can be applied to a substrate using any number of conventional printing techniques. Following application of the printable composition, at least a portion of the liquid carrier can be removed such that the nanostructures can be in sufficient contact to provide a conductive path. The nanostructures arranged in a conductive path can be sintered or used as a conductive material without sintering.

The invention relates to a preparation method for high-conductivity graphene and silver nanoparticle composite materials. The method comprises the steps that graphene oxide is prepared at first; a graphene oxide water solution is prepared; silver nitrate is added into the obtained graphene oxide water solution, the temperature is risen to be 90+/-10 DEG C, sodium citrate is added in the solution, and stirring and reaction are conducted; ammonium hydroxide and hydrazine hydrate are added into the obtained solution, and stirring and reaction are conducted at the temperature of 90+/-10 DEG C; deionized water and ethyl alcohol are adopted to clean the reaction product, vacuum freeze drying is conducted on the cleaned reaction product, and then the conductive graphene and silver nanoparticle composite materials are obtained. The conductivity of the composite materials is 3.71-18.32S/cm, the graphene and silver nanoparticle composite materials prepared based on the method can greatly improve the conductivity of graphene, and can be further applied in the field of printed electronics.

Printed electronic device comprising a substrate onto at least one surface of which has been applied a layer of an electrically conductive ink comprising functionalized graphene sheets and at least one binder. A method of preparing printed electronic devices is further disclosed.

Hydrodynamic focusing of two fluid steams provides a novel micro printing technology for printed electronics and other high performance applications.

Printed electronics are increasingly becoming an important industry, thus innovations to integrate the various components and processes would be very useful to expand this industry. Disclosed are innovational concepts that would be very useful to accelerate this industry. Webs of printed electronics, antennas, power sources (cells/batteries), and assembly substrates can be merged together to form a completed electronic assembly that could be, for example, in label form or in a stand alone electronic device.

Provided are a metal precursor containing an oxime group, which is represented by general formula 1, and a metal precursor ink containing same. The metal precursor ink according to the present invention enhance metal content, induce intramolecular and/or intermolecular complexation, thereby enabling low temperature sintering with excellent solubility and stability. The metal precursor ink according to the present invention can be used to form a metal wire with a desired shape. Therefore, the metal precursor ink can find applications in the field of printed electronics, particularly various electrodes, such as mesh type transparent electrodes.

A single, flexible, robust and low rate capable manufacturing platform that may be associated with caseless munitions firing circuits, nano and microelectromechanical (“NEMS” and “MEMS”) devices, and/or fractal antennas is described. The platform may be designed for extensive research and development in printed electronics, 3D thermo-plastics and low melt metal casting, light machining, and other processing operations necessary for the integrated fabrication of various components, such as caseless munitions components. The platform may be used in a remote location.

The invention relates to a silver-organic conductive ink for printed electronics. The ink is a solution which is formed by dissolving a silver-organic compound in a specific solvent and can be subjected to ink jetting, gravure, silk screening to form conductive patterns. The silver-organic conductive ink comprises 10-60 wt.% of a saturated carboxylic acid silver compound, 5-50 wt.% of an amido compound, 10-85 wt.% of a solvent and 0-10 wt.% of a thickening agent, the saturated carboxylic acid silver compound comprises a linear chain, a branched chain and a hydroxyl, amido and sulfydryl substituted carboxylic acid silver compound, the amido compound is complex with carboxylic acid silver so as to improve dissolubility of the carboxylic acid silver, the amido compound is primary amine and secondary amine, the amido amount is two times of molar weight of silver ions, the solvent is not reacted with the carboxylic acid silver or amine, and the thickening agent is used for adjusting viscosity. The silver-organic conductive ink can be applied to preparation of conductive lines by means of methods of printed electronics and is capable of simplifying existing line preparation processes.

The invention provides colored liquid metal and a manufacturing method thereof. A colored liquid metal raw material comprises a liquid metal body, pigment and/or nanometer conductive particles. The colored liquid metal can be presented in various specific colors while achieving electrical conduction. Firstly, the colored liquid metal has good electrical conductivity of liquid metal and rich colors of the pigment, an approach to color printed electronics can be opened up, and the aesthetic property and experience of the printed electronics can be remarkably promoted; meanwhile, the oxidation resistance and rust-proof property of traditional liquid metal are improved.

Solar cell substrates require high optical transparency, but also prefer high optical haze to increase the light scattering and consequently the absorption in the active materials. Unfortunately there is a tradeoff between these optical properties, which is exemplified by common transparent paper substrates exhibiting a transparency of about 90% yet a low optical haze (<20%). In this work we introduce a novel transparent paper made of wood fibers that display both ultra-high optical transparency (˜96%) and ultra-high haze (˜60%), thus delivering an optimal substrate design for solar cell devices. Compared to previously demonstrated nanopaper composed of wood-based cellulose nanofibers, our novel transparent paper has better dual performance in transmittance and haze, but also is fabricated at a much lower cost. This high-performance, low-cost transparent paper is a potentially revolutionary material that may influence a new generation of environmentally friendly printed electronics.

Graphene ink compositions as can be utilized with gravure and screen printing processes, to provide flexible electronic components with high-resolution printed graphene circuitry.

The invention relates to a manufacturing method of an all-printed electronic carbon dioxide thin-film SAW (Surface Acoustic Wave) sensor. The manufacturing method disclosed by the invention specifically comprises the following steps: selecting a piezoelectric substrate; designing and printing an electrode; preparing and printing a sensitive material; and designing and printing a driving circuit. Compared with the traditional microelectronic process, the carbon dioxide thin-film SAW sensor prepared based on printed electronics has the obvious advantages of being low in cost, simple and rapid in manufacturing process, environmentally friendly and the like.

The invention belongs to the technical field of printed electronics and particularly discloses a preparation method for nano-copper ink applied to printed electronics. In the preparation method for the nano-copper ink applied to the printed electronics, under the action of ammoniand a reducing agent, the stable nano-copper ink applied to the printed electronics is obtained by dissolving an organic copper salt and an organic protective agent into a solvent. The preparation method is simple in process, free of heating and low in cost; water is taken as the solvent, so that the preparation method is more environment-friendly; the particle size of the prepared nano copper is less than 30nm; and the prepared nano copper is easily sintered into a film, is good in conductivity and has a wide application prospect in the field of printed electronic circuits.

The invention concerns a method of removing encapsulating material from encapsulated particles deposited onto a substrate. According to the method, a substrate is used which is capable of facilitating said removal of encapsulating material. The particles may be nanoparticles. In particular, the substrate-facilitated removal may result in sintering of the particles. The invention provides a novel way of functionalizing electronic structures using particulate matter and for conveniently producing e.g. printed electronics devices.

The present invention relates to a precision overprinting method of printed electronics rotary printing where a location can be adjusted in real time. More particularly, minute precise printing electronic patterns of a micrometer level which are multilayered by a plurality of gravure offset printing units are accurately overprinted, and a fine deviation in a rotation direction and an axial direction of a plate cylinder is quickly solved. The present invention also relates to a precision overprinting method of printed electronics rotary printing where a location can be adjusted in real time, capable of verifying a printing quality by displaying register marks printed in printing units and alignment state on a display device.

The present invention relates to a vinyl greenhouse management system and a processing method thereof. The vinyl greenhouse management system of the present invention includes a plurality of sensor terminals provided at a vinyl greenhouse, a control device configured to receive various sensed information about an environmental condition of the vinyl greenhouse from the sensor terminals so as to control a status of the vinyl greenhouse, a vinyl greenhouse management server connected with the control device and configured to collect the sensed information, and a user terminal and a manager terminal configured to monitor or remote control the status of the vinyl greenhouse as being linked with the vinyl greenhouse management server. The vinyl greenhouse includes a heating film on a partial surface of a structure. In the heating film, a plurality of heating patterns and a plurality of circuit patterns are formed of conductive ink on a surface of a polymer film by using the printed electronics. The sensor terminals are electrically connected with the control device through the circuit patterns so as to transfer the sensed information. In response to the sensed information of the vinyl greenhouse, power supply from the control device to the heating patterns may be performed or stopped. According to the present invention, the heating film can be mass-produced at a low cost, and a status of the vinyl greenhouse can be monitored and remotely controlled in real time.

Multilayer structure (200) for electronic devices, including a flexible substrate film (102) for accommodating electronics, a number of electrical elements (204, 206) provided to the flexible substrate film, preferably by element of printed electronics and/or surface mounting, a protective layer (104) laminated onto at least first surface of the substrate film, the protective layer being configured to mask perceivable physical deviation of the substrate, such as uneven surface profile or coloring, substantially at the location of the number of elements, from outside perception, optionally visual perception and/or tactile inspection taking place via the protective layer, and plastic layer (106) molded over at least second surface of the substrate film opposite to the first surface. A corresponding method of manufacture is presented.

The invention relates to a semiconductor material production technology, in particular to a hybrid membrane production method. The hybrid membrane production method includes the following steps: dissolving an organic semiconductor material in a first solvent to form a first mixture with concentration of 0.01-20mg/mL; dispersing an inorganic nano material into a second solvent to form a second mixture with concentration of 0.01-10mg/mL; transferring the first mixture onto an inert substrate for standing, and forming an organic semiconductor nanocrystalline after evaporation of the first solvent; transferring the second mixture onto the surface of the organic semiconductor nanocrystalline, performing annealing treatment and obtaining a hybrid membrane made of organic-inorganic materials after evaporation of the second solvent. The production method is simple to operate without rigid environments of high temperature and high vacuum, compatible with printed electronics processing methods such as ink-jet printing and aerosol jet printing, short in production cycle, low in cost and suitable for large-area mass production.

A system and method are provided for implementing a unique scheme by which to execute digital vapor phase patterning on metals, semiconductor substrates and other surfaces using a proposed variable data digital lithographic image forming architecture or technique. For certain substrate printing and manufacturing applications, including some printed electronics applications, the disclosed schemes implement techniques to digitally pattern metal layers with bulk material properties in a manner that is aligned with underlying layers on the fly. The disclosed digital printing process may pattern a release oil on a substrate in support of a metal deposition process. Changeable patterning is implemented with an ability to modify the alignment of the patterns on-the-fly. The release layer on a drum is laser patterned in order that the patterned release layer is transferred to the substrate, or the patterning of the release layer is accomplished directly on the substrate.

The invention discloses a method for preparing a uniformly-conductive silver wire used for printed electronics. The method comprises the following specific steps of: spraying conductive printing ink on a printing substrate; and preparing the uniformly-conductive silver wire used for the printed electronics by a heating ablation method. The method has the good characteristics of convenience, rapidness, simple process, low ablation temperature and low electric conductivity, and can meet the requirement on production of modern microelectronic circuits.

The invention belongs to the field of printed electronics, and particularly discloses a method for preparing a printed electronic resistance welding material based on a household piezoelectric inkjet printing technology. A low-viscosity resistance welding ink formula is fabricated by adopting an improved household piezoelectric inkjet printer; the total time from beginning of inkjet to curing molding does not exceed 5 minutes; meanwhile, the method disclosed by the invention has the characteristics of being simple to operate, economic in material, high in reliability and the like, and is applicable to preparation of a hard plate and a flexible plate of a printed circuit board (PCB), a resistance welding coating of a rigid-flexible board.

The invention relates to technical field of printed electronics, and discloses a preparation method of nano-copper printing ink and a copper conductive film. The preparation method comprises the following steps of: dispersing nano-copper into ethanol containing short-chain hydroxyl carboxylic acid, ethylene glycol or a mixed solution of ethanol and ethylene glycol, coating onto the surface of a substrate; and baking at a low temperature to form a copper conductive film. In the dispersing process of nano-copper, the short-chain hydroxyl carboxylic acid can react with oxidized nano-copper to generate an organic copper salt, and the organic copper salt and residual hydroxyl carboxylic acid are coated on the surface of nano-copper for preventing the nano-copper from being further oxidized; and in a baking process, the generated organic copper salt can be reduced into copper, the hydroxyl carboxylic acid is used for preventing nano-copper from being oxidized, and residual short-chain hydroxyl carboxylic acid has relatively-low boiling point and low decomposing temperature and is very easy to remove in the baking process, so that the problem of easiness in oxidizing of nano-copper in treatment processes such as dispersing, printing, baking and the like is solved effectively.