CN-118183722-B - Automatic device for mechanical stripping of graphene and use method of automatic device

CN118183722BCN 118183722 BCN118183722 BCN 118183722BCN-118183722-B

Abstract

The invention discloses an automatic device for mechanical stripping of graphene and a use method thereof, wherein the automatic device comprises an objective table device, an adhesive tape transmission device, a glass slide cleaning device, a pressing device, a monitoring device, an observation device, a heating device and a glass slide transferring device; the base is provided with an objective table device, the right side of the objective table device is provided with a slide cleaning device, the rear side of the objective table device is provided with an adhesive tape transmission device, a pressing device and a monitoring device, the left side of the objective table device is provided with an observation device, the front side of the objective table device is provided with a slide transferring device, and the lower part of the objective table device is provided with a heating device. The invention is achieved by multiple automated exfoliation until a monolayer of graphene crystals is observed under a microscope.

Inventors

SUN YU
YAN JUNJIE
Yang Juye
ZHU ZILONG

Assignees

艾博纳微纳米科技(江苏)有限责任公司

Dates

Publication Date: 20260508
Application Date: 20240423

Claims (7)

1. The automatic device for mechanical stripping of the graphene comprises an objective table device, an adhesive tape transmission device, a glass slide cleaning device, a monitoring device, a pressing device, a heating device, an observing device and a glass slide transferring device, wherein the objective table device is arranged on a base; The adhesive tape driving device comprises an adhesive tape winding device, an adhesive tape guiding device, an adhesive tape winding device and an adhesive tape roller group, wherein the adhesive tape winding device comprises two first straight rods, a first rotating motor connecting piece and first rollers, the two first straight rods are arranged on the upper surface of the base, the first rotating motor is connected to the two first straight rods through the first rotating motor connecting piece, the first rollers are arranged on the first rotating motor, a plurality of layers of adhesive tapes are arranged on the first rollers, one end of each layer of adhesive tape is connected with the adhesive tape winding device, and the other end of each layer of adhesive tape in the plurality of layers of adhesive tapes is connected with the adhesive tape winding device after passing through one roller or more than two rollers in the adhesive tape guiding device and the adhesive tape roller group; The adhesive tape guiding device comprises a first driving source, a guiding bracket, a first linear moving sliding table and a guiding wheel, wherein the first driving source is arranged at the top end of the guiding bracket, the first linear moving sliding table is arranged on the guiding bracket in a sliding manner, the guiding wheel is arranged on the first linear moving sliding table, and the first driving source drives the first linear moving sliding table to move up and down; The adhesive tape winding device comprises a second driving source, an adhesive tape winding bracket, a second linear moving sliding table, a second rotating motor and a second roller, wherein the second driving source is arranged at the top end of the adhesive tape winding bracket; The adhesive tape roller group comprises two second straight bars, four rollers and a roller connecting piece, wherein one roller is arranged on the second straight bar close to one side of the object stage device through the roller connecting piece, and three rollers which are arranged downwards from top to bottom are arranged on the second straight bar far away from one side of the object stage device through the roller connecting piece.
2. The automated graphene mechanical stripping device according to claim 1, wherein the stage device comprises a lifting platform, a disc rotating shaft, a third rotating motor, a cushion block, a rotating disc, disc clamping feet and fixing pieces, wherein the lifting platform is fixedly connected with the disc rotating shaft, the disc rotating shaft is connected with the third rotating motor, the third rotating motor is connected with the cushion block, the cushion block is connected with the rotating disc, the rotating disc is connected with the four disc clamping feet, and two fixing pieces are arranged on the upper surface of the disc clamping feet.
3. The automated graphene mechanical peeling apparatus according to claim 1, wherein the pressing apparatus comprises a third driving source, two sliding bars, a pressing connection piece, and a pressing member, the third driving source is connected to the pressing member through the pressing connection piece, and the pressing member is driven to move up and down by the third driving source.
4. The automated graphene mechanical stripping device according to claim 1, wherein the monitoring device comprises a camera, a monitoring bracket and two third straight bars, the camera is connected to the two third straight bars through the monitoring bracket, the observation device comprises a microscope, a CCD camera and a microscope bracket, the microscope bracket is provided with a microscope, and the microscope is provided with the CCD camera.
5. The automated graphene mechanical stripping device according to claim 1, wherein the slide cleaning device comprises a cleaning instrument support and an ultrasonic cleaning instrument, and the ultrasonic cleaning instrument is arranged on the cleaning instrument support.
6. The automated graphene mechanical stripping device according to claim 1, wherein the glass slide transfer device is provided with two groups, the glass slide transfer device comprises a manipulator base and two manipulators, the manipulator base is provided with the manipulator, the manipulator base is provided with the two manipulators, and the manipulator performs rotary motion relative to the manipulator base.
7. A method of using the automated apparatus for mechanical exfoliation of graphene according to any one of claims 1-6, comprising the steps of: Step one, a glass slide cleaning device cleans glass slides, a glass slide transferring device transfers the cleaned glass slides from the glass slide cleaning device to a stage device, a fixing piece of the stage device fixes the glass slides, prepared graphene crystals are placed on clean glass slides, and the stage device is controlled to rotate anticlockwise by 90 degrees; Step two, controlling a tape driving device to drive the tape to drive for a certain length, so that a plurality of layers of tapes stay above the glass slide carrying the graphene crystal; Controlling the pressing device to enable the multilayer adhesive tape to descend to the monitoring range of the monitoring device, and monitoring whether the pressed multilayer adhesive tape is in a flat superposition state or not by the monitoring device, if so, controlling the pressing device to descend continuously, pressing the multilayer adhesive tape onto a glass slide with graphene for 5-10 seconds, and enabling the adhesive tape to adhere to the graphene crystal better; Step four, after the pressing process is finished, loosening the pressing device, wherein a thin layer of graphene crystal is attached to the adhesive tape; step five, controlling the object stage device to rotate 90 degrees anticlockwise, so that a new clean glass slide rotates below the adhesive tape with the thin-layer graphene; step six, starting a pressing device to press the adhesive tape, starting a heating device to heat the glass slide to separate the thin layer graphene from the adhesive tape, and loosening the pressing device after the thin layer graphene is separated from the adhesive tape; step seven, the object stage device rotates anticlockwise by 90 degrees, so that the glass slide carrying the thin-layer graphene is positioned below the microscope lens; And step eight, observing the structure of the graphene on the glass slide through an observation device, withdrawing the glass slide if the single-layer graphene is prepared, and rotating the glass slide clockwise by 90 degrees to the lower part of the adhesive tape if the single-layer graphene is not prepared, and repeating the steps two to eight until the single-layer graphene structure is obtained.

Description

Automatic device for mechanical stripping of graphene and use method of automatic device Technical Field The invention relates to the technical field of graphene production equipment, in particular to an automatic device for mechanical stripping of graphene and a use method thereof. Background Since the discovery of graphene materials, due to their unique physical, chemical and mechanical properties, single-layer graphene has become a research hotspot in the fields of material science and nanotechnology, wherein single-layer graphene is particularly popular in research, and after being manufactured by foreign scholars in a mechanical stripping method, more and more people are put into the development of preparation schemes of single-layer graphene. There are known methods for producing single-layer graphene, such as mechanical exfoliation, chemical vapor deposition, silicon-based substrate exfoliation, liquid-phase exfoliation, thermal reduction, etc., wherein the mechanical exfoliation method can produce high-quality single-layer graphene, but has low efficiency. Disclosure of Invention The invention provides an automatic device for mechanical stripping of graphene, which aims to solve the defects and shortcomings in the prior art. The invention provides an automatic device for mechanical stripping of graphene, which comprises an objective table device, an adhesive tape transmission device, a glass slide cleaning device, a monitoring device, a pressing device, a heating device, an observation device and a glass slide transferring device, wherein the objective table device is arranged on a base, the glass slide cleaning device is arranged on the right side of the objective table device, the adhesive tape transmission device, the monitoring device and the pressing device are arranged on the rear side of the objective table device, the observation device is arranged on the left side of the objective table device, the glass slide transferring device is arranged on the front side of the objective table device, and the heating device is arranged below the objective table device. The adhesive tape driving device comprises an adhesive tape winding device, an adhesive tape guiding device, an adhesive tape winding device and an adhesive tape roller group, wherein the adhesive tape winding device comprises two first straight rods, a first rotating motor connecting piece and a first roller, the two first straight rods are arranged on the upper surface of the base, the first rotating motor is connected to the two first straight rods through the first rotating motor connecting piece, the first roller is arranged on the first rotating motor, a plurality of layers of adhesive tapes are arranged on the first roller, one end of each layer of adhesive tape is connected with the adhesive tape winding device, and the other end of each layer of adhesive tape in the plurality of layers of adhesive tapes is connected with the adhesive tape winding device after passing through the adhesive tape guiding device, one roller in the adhesive tape roller group or more than two rollers. Further, the adhesive tape guiding device comprises a first driving source, a guiding support, a first linear moving sliding table and a guiding wheel, wherein the first driving source is arranged at the top end of the guiding support, the first linear moving sliding table is arranged on the guiding support in a sliding mode, the guiding wheel is arranged on the first linear moving sliding table, and the first driving source drives the first linear moving sliding table to move up and down. Further, the adhesive tape winding device comprises a second driving source, an adhesive tape winding support, a second linear movement sliding table, a second rotating motor and a second roller, wherein the second driving source is arranged at the top end of the adhesive tape winding support, the second linear movement sliding table is arranged on the adhesive tape winding support in a sliding mode, the second driving source drives the second linear movement sliding table to move up and down, the second linear movement sliding table is provided with the second rotating motor and the second roller, and the second rotating motor drives the second roller to rotate. Further, the adhesive tape roller group comprises two second straight bars, four rollers and a roller connecting piece, one roller is arranged on the second straight bars close to one side of the object stage device through the roller connecting piece, and three rollers which are arranged downwards from top to bottom are arranged on the second straight bars far away from one side of the object stage device through the roller connecting piece. Further, the objective table device comprises a lifting platform, a disc rotating shaft, a third rotating motor, a cushion block, a rotating disc, disc clamping feet and fixing pieces, wherein the lifting platform is fixedly connected with the disc rotating shaft, the disc