The invention discloses a large-area graphene seamless transferring method. In a process of transferring large-area graphene, a PMMA carrier is not removed, application of a graphene film as a transparent electrode is not affected, and a graphene gap is prevented in a process of removing PMMA, thereby implementing seamless transferring of large-area continuous graphene. Without any processing, graphene obtained by using the seamless transferring method has a relatively small sheet resistance, which is mainly distributed about 300 [omega]sq-1, reaches a minimum of 219 [omega]sq-1, and is one fifth of non-doped graphene, and electroconductibility of the graphene is comparable to that of doped graphene. In addition, the transferred graphene/PMMA/AB glue has light transmissivity of 96%, and is comparable to 97.4% of single-layer graphene. The method is simple in process and low in costs, and is suitable in transferring of large-area continuous graphene.

Large-area graphene seamless transferring method

The invention discloses a method for transferring graphene The method comprises four steps: preparing a graphene film on an initial substrate; coating the surface of graphene with a conductive adhesive; peeling the graphene film from the initial substrate through an electrochemical method, and attaching the peeled graphene film to a target substrate; and finally cleaning the target substrate with a graphene film attached to complete graphene transfer Through an electrochemical bubbling transferring method, a graphene film is peeled from the initial substrate A metal corrosion method for transferring is avoided, pollution of a corrosion product to a graphene film is prevented, the production cost and time are effectively reduced, and damage and wrinkle of the graphene film are reduced The method is simple to operate and is convenient to be used in the graphene field

Method for transferring graphene

The invention aims at providing a preparation method of an OLED composite electrode material, so that the square resistance of the material can be lower than 100 ohm per square, and a work function of the material can meet the requirement for an anode work function of an organic photoelectric device.

Preparation method of OLED composite electrode material

The invention discloses a modified graphene film applied to monovalent and polyvalent metal ion separation. The film is prepared from a material of slight-reduction graphene oxide with a mass ratio of carbon to oxygen as 1.2 to 1.4, and a two-dimensional nano mass transfer channel formed by a slight-reduction graphene oxide sheet layer in the film can let monovalent metal ions to pass through and intercept polyvalent metal ions. The preparation method of the modified graphene film comprises the following technological steps: evenly dispersing slight-reduction graphene oxide into water to form a slight-reduction graphene oxide film casting solution, filtering the film casting solution by a base material film to form a wet-state modified graphene film on the base material film, drying the wet-stage modified graphene film and the base material film together under normal temperature and peeling from the base material film after being dried to obtain the modified graphene film.

Modified graphene film applied to monovalent and polyvalent metal ion separation and preparation method thereof

The invention belongs to the technical field of semiconductor materials and particularly relates to a two-dimensional material transferring method, a two-dimensional material and application thereof.The two-dimensional material transferring method includes the steps of contacting a two-dimensional material side of a growth substrate with a target substrate, pressing the two substrates, dropping water between the two substrates, holding the pressure for a certain period of time, removing the pressure, drying, and transferring the two-dimensional material from the growth substrate to the targetsubstrate. The method herein is simple to perform, high in speed and good in environmental friendliness; film has effectively slimmed chances for breaking during transferring. The two-dimensional material produced by means of the method herein has good integrity; regents used herein are environmentally friendly and free of pollution; the two-dimensional material has good quality and environmentalfriendliness and may be assembled into more complex photoelectronic components.

Two-dimensional material transferring method, two-dimensional material and application thereof

The invention provides a graphene transfer method. The method comprises the following steps: 1, placing a substrate on which graphene is deposited in a medium containing oxidizing substances to be processed; 2, adhering one side, on which the graphene is deposited, of the substrate processed in the step 1 to a target matrix; 3, stripping off the substrate in a sample obtained in the step 2 so as to complete transfer of the graphene. According to the method provided by the invention, firstly, the substrate on which the graphene is deposited is placed in the oxidant to be processed, so that the interface bonding force between the graphene and the substrate is reduced, so that the graphene is easy to fall out of the surface of the substrate in the later period of stripping off the substrate, integrity of the graphene cannot be damaged, the graphene transferred to the target matrix is not damaged and the graphene has small defects.

Graphene transfer method

The invention provides a preparation method for a graphene/metal composite thin film. The method comprises the following steps that (A) a growth substrate with a graphene thin film is immersed in a reduction solution to be subjected to an in-situ reduction reaction, and a metal particle/graphene thin film/growth substrate composite thin film is obtained; and (B) a metal particle/graphene thin film in the metal particle/graphene thin film/growth substrate composite thin film is transferred to a target substrate, and a target substrate/metal particle/graphene thin film composite thin film is obtained. According to the preparation method, metal particles are reduced to the graphene thin film in situ, a compositing process is omitted, and the metal particles well disperse on the graphene thin film, so that the sheet resistance of the graphene/metal composite thin film is lowered. The metal particles in the prepared graphene/metal composite thin film are clamped between the graphene thin film and the target substrate so as to be well protected, and therefore the time stability of the sheet resistance of the composite thin film is greatly enhanced.

Graphene/metal composite thin film and preparation method thereof

The utility model discloses a product packaging for clean material, include base and the sticky supporting platform that has who is used for relapseing the adhesion product, supporting platform is fixed to be set up on the base. This kind of product packaging is when packing, can glue the product on supporting platform, thereby prevent that clean material product such as graphene films breaks away from and bumps from product packaging at product packaging's removal in -process, the damage or the damage of product among the reduction product packaging, can fix clean materials such as graphene films in product packaging more reliably, furthermore, carry out the fixed of product through supporting platform, can reduce the product shape that to pack this product packaging, the size, the restriction of kind, all can reliably fix on supporting platform as long as can glue, improve product packaging's suitability and practicality, additionally, supporting platform is last can to relapse the adhesion product, be favorable to improving product packaging's life.

A product packaging for clean material

The invention discloses a product wrapper for clean materials. The product wrapper comprises a base and a support platform which is used for sticking products repeatedly and has stickiness, and the support platform is fixedly arranged on the base. According to the product wrapper, when packing is conducted, products can be stuck to the support platform, the situation that clean material products such as graphene membranes are disengaged from the product wrapper to be subjected to collision in the moving process of the product wrapper is prevented, injuries or damage of the products in the product wrapper is reduced, and the clean materials such as the graphene membranes can be fixed in the product wrapper more reliably; in addition, by fixing the products through the support platform, limitation of shapes, sizes and types of the products capable of being packed by the product wrapper can be reduced, reliable fixation can be achieved as long as the products can be stuck to the support platform, the applicability and practicability of the product wrapper are improved, the support platform can be used for sticking the products repeatedly, and the service life of the product wrapper can be prolonged conveniently.

Product wrapper for clean materials

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Graphene transfer method

Graphene/metal composite thin film and preparation method thereof

A product packaging for clean material

Product wrapper for clean materials