776 results about "Nanogenerator" patented technology

The invention provides a pressure sensor, and further provides electronic skin, touch screen equipment and safety alarm equipment correspondingly, wherein the electronic skin, the touch screen equipment and the safety alarm equipment are based on the pressure sensor. The pressure sensor comprises a substrate. The substrate is provided with a plurality of sensing units arranged in an array mode; a static nano generator with two friction layers is adopted in the sensing units, when external force is applied to the sensor, the distance between two friction layers of each sensing unit feeling the external force is changed, and electrical signals output outwards by two corresponding electrode layers are also changed; electrode layers of all sensing units are led out of the sensor through wires, so that functions like pressure (stress) positioning and pressure field mapping can be achieved. The electronic skin, the touch screen equipment and the safety alarm equipment do not need to be powered by power supplies and can conduct pressure induction in a self-driven mode.

A small scale electrical generator includes an elongated substrate and a first piezoelectric fine wire. The first piezoelectric fine wire is disposed along a surface of the substrate. The first piezoelectric fine wire has a first end and a spaced-apart second end. A first conductive contact secures the first end of the fine wire to a first portion of the substrate and a second conductive contact secures the second end of the fine wire to a second portion of the substrate. A fabric made of interwoven strands that includes fibers from which piezoelectric nanowires extend radially therefrom and conductive nanostructures extend therefrom is configured to generate electricity.

An electric power generator includes a first conductive layer, a plurality of semiconducting piezoelectric nanostructures, a second conductive layer and a plurality of conductive nanostructures. The first conductive layer has a first surface from which the semiconducting piezoelectric nanostructures extend. The second conductive layer has a second surface and is parallel to the first conductive layer so that the second surface faces the first surface of the first conductive layer. The conductive nanostructures depend downwardly therefrom. The second conductive layer is spaced apart from the first conductive layer at a distance so that when a force is applied, the semiconducting piezoelectric nanostructures engage the conductive nanostructures so that the piezoelectric nanostructures bend, thereby generating a potential difference across the at semiconducting piezoelectric nanostructures and also thereby forming a Schottky barrier between the semiconducting piezoelectric nanostructures and the conductive nanostructures.

A generator includes a disc shaped first unit, a disc shaped second unit and an axle. The first unit includes a substrate layer, a double complementary electrode layer and an electrification material layer. The electrode layer includes a first electrode member and a second electrode member. The first electrode member includes evenly spaced apart first electrode legs extending inwardly. The second electrode member is complementary in shape to the first electrode member. The legs of the first electrode member and the second electrode member are interleaved with each other and define a continuous gap therebetween. The electrification material includes a first material that is in a first position on the triboelectric series. The second unit defines elongated openings and corresponding elongated leg portions, and includes a second material that is at a second position on a triboelectric series, different than the first position.

A generator for converting mechanical energy or hydropower or wind energy into electrical energy is disclosed. The generator includes a first member and a second member in contact with the first member to generate triboelectric charges. The second member rolls against the first member to generate a flow of electrons between two electrodes. Another embodiment of the generator includes two electrodes, and a member in contact with the two electrodes to generate triboelectric charges. The member rolls against the electrodes to generate a flow of electrons between the two electrodes.

The invention provides a nano generator, a nano generator set and a self-powered system comprising the nano generator or the nano generator set. The nano generator comprises a supporting substrate, and upper and lower electrodes which are arranged at two sides of upper and lower surfaces of the supporting substrate by glue, wherein each electrode respectively comprises a zinc oxide nanowire array layer, a macromolecular insulating layer and a conductive thin film; the zinc oxide nanowire array layers vertically grow on the supporting substrate; the macromolecular insulating layers are coated on the zinc oxide nanowire array layers; the conductive thin films are arranged on the macromolecular insulating layers; and the conductive thin films form output electrodes of voltage and current of the nano generator. The self-powered system can obtain energy from very small force in an environment through utilizing the nano generator and can store most of the energy when a sensor is at a standby mode; the collected energy is used for triggering the sensor under an active mode to rapidly process and transmit data; and therefore, the self-powered system has huge potentials of application on the aspects of radio biological sensing, environment/infrastructure monitoring, sensor networks, individual electronic products, even national security.

A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative lateral movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.

A triboelectric generator includes a first contact charging member and a second contact charging member. The first contact charging member includes a first contact layer and a conductive electrode layer. The first contact layer includes a material that has a triboelectric series rating indicating a propensity to gain electrons due to a contacting event. The conductive electrode layer is disposed along the back side of the contact layer. The second contact charging member is spaced apart from and disposed oppositely from the first contact charging member. It includes an electrically conductive material layer that has a triboelectric series rating indicating a propensity to lose electrons when contacted by the first contact layer during the contacting event. The electrically conductive material acts as an electrode. A mechanism maintains a space between the first contact charging member and the second contact charging member except when a force is applied thereto.

There are provided a flexible nanocomposite generator and a method of manufacturing the same. A flexible nanocomposite generator according to the present invention includes a piezoelectric layer formed of a flexible matrix containing piezoelectric nanoparticles and carbon nanostructures; and electrode layers disposed on the upper and lower surfaces of both sides of the piezoelectric layer, in which according to a method for manufacturing a flexible nanocomposite generator according to the present invention and a flexible nanogenerator, it is possible to manufacture a flexible nanogenerator with a large area and a small thickness. Therefore, the nanogenerator may be used as a portion of a fiber or cloth. Accordingly, the nanogenerator according to the present invention generates power in accordance with bending of attached cloth, such that it is possible to continuously generate power in accordance with movement of a human body.

The invention provides a nano generator and a manufacturing method thereof. The nano generator comprises a base, a first electrode, a zinc oxide nano wire array, a macromolecule insulating layer and a second electrode, wherein the first electrode is arranged on the base; the zinc oxide nano wire array vertically grows on a first electrode layer; the macromolecule insulating layer is coated on a zinc oxide nano wire array layer; the zinc oxide nano wire array layer covers the zinc oxide nano wire array, and the second electrode is arranged on the macromolecule insulating layer; and the first electrode and the second electrode are used as a voltage output pole and a current output pole of the nano generator. The nano generator disclosed by the invention adopts a unique structure so that the electric performance output and the stability are effectively improved.

An electrical generator includes a substrate, a semiconductor piezoelectric structure having a first end and an opposite second end disposed adjacent to the substrate, a first conductive contact and a second conductive contact. The structure bends when a force is applied adjacent to the first end, thereby causing an electrical potential difference to exist between a first side and a second side of the structure. The first conductive contact is in electrical communication with the first end and includes a material that creates a Schottky barrier between a portion of the first end of the structure and the first conductive contact. The first conductive contact is also disposed relative to the structure in a position so that the Schottky barrier is forward biased when the structure is deformed, thereby allowing current to flow from the first conductive contact into the first end.

The invention provides a friction-nanogenerator-based molecular sensor. The sensor comprises a first conducting element, a first friction layer, a second conducting element, a second friction layer, a modified layer and an elastic connecting component, wherein the first friction layer is placed on the lower surface of the first conducting element in a contact mode, the second friction layer is placed on the upper surface of the second conducting element in the contact mode, and the modified layer is combined with the upper surface of the second friction layer; by the elastic connecting component, the lower surface of the first friction layer is opposite to the upper surface of the second friction layer, and a certain distance is respectively kept between the lower surface of the first friction layer and the upper surface of the second friction layer; the lower surface of the first friction layer is at least partially in contact with the upper surfaces of the second friction layer under the action of external force, and the distance respectively between the lower surface of the first friction layer and the upper surfaces of the second friction layer can be restored under the action of the elastic connecting component when external force is removed, and simultaneously, electrical signals are outputted outwards through the first conducting element and the second conducting element; the electrical signals can be changed after the modified layer is combined with a target material to be detected.

A dye-sensitized solar cell including ZnO nanowire arrays grown of a flat substrate for harvesting solar energy is integrated with a piezoelectric nanogenerator for harvesting ultrasonic wave energy. The two energy harvesting approaches work simultaneously or individually and can be integrated in parallel or serial for raising the output current, voltage or power, respectively. A solar cell employs an optical fiber and semiconductor nanowires grown around the fiber. A p-n junction based design, organic-inorganic heterojunction, or a dye-sensitized structure is built at the surfaces of the nanowires. Light entering the fiber from a tip propagates through the fiber until it enters a nanowire where it reaches a photovoltaic element. Light entering the fiber cannot escape until it interacts with a photovoltaic element, thereby increasing the solar conversion efficiency. The fiber can transmit light, while the nanowires around the fibers increase the surface area of light exposure.

This invention provides a wind power friction nanometer generator comprising a first part and a second part which can perform elastic bending deformation. The first part comprises a first conducting element and a first friction layer which is directly attached to the upper surface of the first conducting element; the second part comprises a second friction layer and a second conducting element which is directly attached to the upper surface of the second friction layer; at least one of the first part and the second part is relatively fixed, and the first friction layer and the second friction layer are opposite to each other; at least part of the upper surface of the first friction layer and the lower surface of the second friction layer form a contact-separate circulation under the action of the wind force, and electric signals are outputted to an external circuit through the first conducting element and the second conducting element. When tangential periodic external forces are applied on the sliding friction nanometer generator, alternating current pulse signal output is formed between the first conducting element and the second conducting element.

The invention discloses a single-electrode friction generator which is built according to the characteristic that polymer materials and metal materials have different friction electrical properties. A tracking system based on the generator is manufactured. According to the tracking system, a plurality of generator units form an array matrix. When an object moves on the tracking system, pressure acts on the generator, two layers of friction electrical materials forming the generator make contact, and therefore electrical signals are sent outwards. When the object gets away from the generator, the two layers of friction electrical materials forming the generator will be separated due to the action of elastic materials, and electrical signals are sent outwards as well. The tracking system based on the friction generator can track movement paths of some objects, and has the advantages of being low in cost, self-driven, simple in structure and the like.

The invention belongs to the technical field of semiconductor film preparation, and particularly relates to a preparation method of a zinc-oxide nanorod array film. The technical scheme adopted by the invention is as follows: the preparation method comprises the following steps of: (1) on the basis of adopting height (001)-oriented ZnO as a seed layer, putting the ZnO seed layer into an aqueous solution of zinc nitrate (Zn(NO3)2), polyethyleneimine (PEI) and hexamethylenetetramine (HMT) for epitaxial growth to obtain a (001) preferred-orientation ultralong ZnO nanorod array film; (2) carrying out fast annealing treatment on the film, and improving the photoluminescence performance of the ZnO array film. The technology has the advantages that the continuous growth of the ZnO nanorod at the temperature higher than 100 DEG C can be realized; due to the high-temperature growth condition, the crystallization quality of the nanorod is improved, the internal defects are obviously reduced; the zinc-oxide nanorod array film has excellent photoelectric performance, and is more conductive to being applied in photoelectric devices such as dye-sensitized solar batteries, ultraviolet detectors, field-effect transistors, light-emitting diodes and nanogenerators.

The invention discloses a method for manufacturing a high-electrical-property nano generator based on a piezoelectric-frictional effect. The small-area high-output-voltage nano generator is manufactured on the basis of the piezoelectric effect and the frictional effect. According to the method, CNT particles and piezoelectric particles in a certain proportion are mixed into liquid PDMS to be manufactured into a composite film, a micro-nano concave-convex structure with rules is manufactured on the surface of the composite film through a micro-processing method, finally electric polarization is carried out on the composite film, and an electrode is arranged in a clamping mode. The method combines the advantages of piezoelectricity and friction, and the manufactured piezoelectric-frictional nano generator with the small area, high sensitivity and high voltage output is low in manufacturing cost and simple in process, has good durability and workability, enables large-scale production and application to be carried out conveniently, and can be easily blended in the design of other products. Self-powered and self-driven equipment is provided for personnel electronic products, environmental monitoring, medical science and the like, and huge commercial and practical potentials are achieved.

The invention discloses a heterojunction piezoelectric type nano generator and a manufacturing method thereof. The heterojunction piezoelectric type nano generator comprises a semiconductor nano rod array, a semiconductor nano groove array, a conducting substrate, a packaging layer and leading wires, wherein the semiconductor nano rod array is vertically arranged on the conducting substrate whichis used as a lower electrode of the generator; the semiconductor nano groove array and the semiconductor nano rod array form a nested structure; the semiconductor nano groove array serves as an upperelectrode of the generator; the upper electrode and the lower electrode of the generator are led by different leading wires; and the packaging layer is arranged on the periphery of the semiconductor nano groove array and the semiconductor nano rod array. The invention also discloses a manufacturing method for the heterojunction piezoelectric type nano generator. The heterojunction piezoelectric type nano generator is simple and compact in structure, relatively longer in service life, simple in manufacturing process and low in manufacturing cost.

A triboelectric generator includes a first triboelectric member, which includes a first conductive layer and an insulating triboelectric material layer disposed on the first conductive layer. The triboelectric material layer includes a first material having a first position on a triboelectric series. An elastic member, disposed against the triboelectric material layer of the triboelectric member and includes a second conductive material, has an elasticity that results in the elastic member being deformed when compressed and returning to an original non-deformed shape after being compressed. The second conductive material has a second position on the triboelectric series. A first load is coupled to the first conductive layer and with the second conductive material so that when a force compresses the elastic member charges will flow between the first conductive layer and the second conductive layer through the load.

The invention relates to the technical field of MEMS (Micro-electro-mechanical System) integration processing, in particular to a single-surface friction power generator based on transverse friction and a preparation method of the single-surface friction power generator. The single-surface friction power generator is formed in a manner that two identical structures are arranged in a relatively and mutually horizontal friction manner, wherein each structure comprises five layers; conducting layers are arranged at the outermost layers; thin film layers are adjacent to the conducting layers; thin film nano structure layers are arranged on the other sides of the thin film layers; metal electrodes are arranged on the other sides of the thin film nano structure layers; and metal electrode nano structure layers are arranged on the other sides of the metal electrodes. The single-surface friction power generator has the advantages that compared with the traditional two-layer thin film power generator in a vertical direction, the single-layer structure uses friction in a horizontal direction, and electrode outputs are in the same plane, so that subsequent processing and integration are facilitated; the nano power generator and the preparation method thereof are simple in technology, low in cost, high in productivity, and easy to integrate and process; mass production is available; and the novel structure effectively uses the friction in the horizontal direction in nature.

The invention provides a double-sided wearable friction nanogenerator and a preparation method thereof. The friction nanogenerator comprises a first high-molecular polymer film layer, a friction electrode layer and a second high-molecular polymer friction film layer which are sequentially distributed in a stacked manner; a human body is taken as a second electrode and connected with the ground; the two layers of friction films are formed by flexible high-molecular polymers; nanostructures are modified on the outer surfaces; the flexible high-molecular polymer film layers can be worn on the human body and rub against the skin of the human body; and the friction electrode layer is a voltage and current output electrode of the friction nanogenerator. The flexible materials of which the surfaces are modified with the concave-convex nanostructures are utilized as two high-molecular polymer film layers, so that the roughness and the contact area of the friction surface are improved and more inductive charges are generated. According to the friction nanogenerator provided by the invention, by unique double-sided friction layer and flexible materials, energy in different directions can be collected and output of higher energy is achieved.

The invention belongs to the technical field of flexible devices, and discloses a flexible wearable friction nanometer power generator with comprehensive multi-mode mechanical energy collecting functions. The flexible wearable friction nanometer power generator comprises a first friction component and a second friction component. Each friction component comprises an insulating isolation layer, a conductive element and a friction layer. A first friction surface and a second friction surface are in contact-separation cycle under the effect of normal external force when the flexible wearable friction nanometer power generator is in contact and separation modes under the effect of external force, the normal relative distances between friction units on the two friction surfaces change, and electric signals can be outputted to outer circuits by the first conductive element and the second conductive element; the first friction surface and the second friction surface relatively slide under theeffect of tangential external force when the flexible wearable friction nanometer power generator is in independent friction modes, the tangential relative locations of the first friction units and the second conductive element change, and electric signals can be outputted to the outer circuits by two secondary second conductive elements of the second conductive element. The flexible wearable friction nanometer power generator has the advantages that the multi-dimensional mechanical energy collecting performance of the flexible wearable friction nanometer power generator can be enhanced, andthe electric output performance of the flexible wearable friction nanometer power generator can be improved.