Suspended structure of single-walled carbon nanotube

Abstract

The utility model discloses a suspended structure of a single-walled carbon nanotube, and belongs to the technical field of sensors and nanometer correlation. The independent electrode array and the non-independent electrode array are installed on the upper surface of the base plate, the single-walled carbon nanotube body is arranged above the non-independent electrode array, the edge of the base plate is coated with a metal covered edge, and the two ends of the metal covered edge are each provided with a guide block. A base is installed below the base plate, guide sleeves are symmetrically and fixedly connected to the edge of the upper surface of the base, and the guide blocks extend to the inner sides of the guide sleeves and can abut against the top end of an electrostatic rod through the bottom of a metal wrapping edge wrapping the edge of the base plate. The electrostatic charge at the substrate plate absorbed by the metal covered edge is eliminated by the electrostatic rod, so that the influence of the electrostatic charge on the single-walled carbon nanotube body can be eliminated, and the single-walled carbon nanotube body can be arranged in order.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors and nano-related technologies, and more specifically, to a suspended structure of a single-walled carbon nanotube. Background Art

[0002] The nanodevice manufacturing process combining one-dimensional nanomaterials with microstructures has achieved innovative upgrades in micro-nano processing technology, which may break through the performance limits of micron-level devices and pave the way for ultra-miniaturized and highly functional flexible devices. As a typical one-dimensional nanomaterial, single-walled carbon nanotubes have many outstanding physical and chemical properties due to their unique structure. They have potential applications in mechanics, electricity, optics and materials science. In particular, the excellent electromechanical properties of SWNTs make it an ideal candidate material for high-performance strain sensors. Currently, commercial sensing devices can generally be divided into optical sensors, piezoelectric sensors and piezoresistive strain sensors. Among them, piezoresistive strain sensors have become one of the most important sensing devices due to their wide range and convenience in technical applications.

[0003] Flexible sensors based on single-walled carbon nanotube bodies in the prior art are not easy to achieve large-scale independent device production; the distance between electrode pairs on the flexible substrate is less than 5 microns, so it is difficult to achieve the deposition of a single or a single bundle of single-walled carbon nanotube bodies on one electrode pair; the device stability is not high. The existing patent is based on a flexible sensor with a suspended structure of a single-walled carbon nanotube body and its production method. The patent application number is 201910011530.9, which realizes the one-dimensional directional arrangement of a single or a single bundle of single-walled carbon nanotube bodies, improves the sensitivity and stability of the device, and is easy to industrialize.

[0004] However, in the patent application No. 201910011530.9, the input end of the non-independent electrode array and the signal source are connected, and the output end of the signal source is suspended on the top of the independent electrode array. Since the non-independent electrode array will have a certain amount of static electricity left on the base plate after discharge, when the single-walled carbon nanotube body is suspended again, these charges will affect the single-walled carbon nanotube body, and then affect the arrangement of the single-walled carbon nanotube body. Therefore, we propose a suspended structure of single-walled carbon nanotubes to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a suspended structure of a single-walled carbon nanotube, which can abut the bottom of the metal edging covered on the edge of the base plate against the top of the electrostatic rod, so that the static charge at the base plate absorbed by the metal edging can be eliminated through the electrostatic rod, thereby eliminating the influence of the static charge on the single-walled carbon nanotube body and ensuring that the single-walled carbon nanotube body can be arranged neatly.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A suspended structure of a single-walled carbon nanotube, comprising a base plate, an independent electrode array and a non-independent electrode array mounted on the upper surface of the base plate, and a single-walled carbon nanotube body arranged above the non-independent electrode array, wherein the edge of the base plate is coated with a metal edging, and guide blocks are arranged at both ends of the metal edging;

[0010] A base is installed below the base plate, a guide sleeve is symmetrically fixedly connected to the edge of the upper surface of the base, and the guide block extends to the inner side of the guide sleeve, a spring is arranged below the guide block, the bottom end of the spring is connected to the bottom wall of the inner cavity of the guide sleeve, and the top end of the spring is connected to the lower surface of the guide block;

[0011] The upper surface edge of the base between the guide sleeves is symmetrically mounted with electrostatic rods, and the top of the electrostatic rods corresponds to the bottom of the metal edging.

[0012] Furthermore, the edge of the metal edging is rotatably connected to a frame plate, and a handle is installed on the outer wall of the frame plate.

[0013] Furthermore, an elastic rubber membrane is installed on the inner side of the frame plate, and the size of the elastic rubber membrane is larger than the size of the base plate.

[0014] Furthermore, the surface of the elastic rubber film close to the base plate is coated with an adhesive layer.

[0015] Furthermore, the guide block and the metal edging are an integrally formed structure, and the metal edging is made of copper material.

[0016] Furthermore, the guide block and the guide sleeve are clearance-fitted.

[0017] Furthermore, the top of the electrostatic rod is arranged in a hemispherical structure.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) In this scheme, the base plate is manually pressed downward to make the guide block and the guide sleeve slide downward and compress the spring to deform. The bottom of the metal edging covered on the edge of the base plate abuts against the top of the electrostatic rod, so that the static charge on the base plate absorbed by the metal edging is eliminated through the electrostatic rod, thereby eliminating the influence of the static charge on the single-walled carbon nanotube body and ensuring that the single-walled carbon nanotube body can be arranged neatly.

[0021] (2) In this scheme, the frame plate is flipped over to the top of the base plate, and the elastic rubber film is manually pressed to make it fit with the upper structure of the base plate, so that the impurities attached to the upper structure of the base plate are cleaned by the adhesive layer to prevent the attached impurities from affecting the discharge process, which is beneficial to the suspension of the single-walled carbon nanotube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the metal edging structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the frame plate structure of the utility model.

[0026] Description of the numbers in the figure:

[0027] 1. Base plate; 2. Independent electrode array; 3. Non-independent electrode array; 4. Single-walled carbon nanotube body; 5. Metal edging; 6. Base; 7. Guide sleeve; 8. Electrostatic rod; 9. Spring; 10. Guide block; 11. Frame plate; 12. Elastic rubber film; 13. Adhesive layer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0029] Example:

[0030] See also Figure 1-4A suspended structure of a single-walled carbon nanotube comprises a substrate 1, an independent electrode array 2 and a non-independent electrode array 3 mounted on the upper surface of the substrate 1, and a single-walled carbon nanotube body 4 arranged above the non-independent electrode array 3, the edge of the substrate 1 is coated with a metal edging 5, and guide blocks 10 are arranged at both ends of the metal edging 5;

[0031] A base 6 is installed below the base plate 1, a guide sleeve 7 is symmetrically fixedly connected to the edge of the upper surface of the base 6, and a guide block 10 extends to the inner side of the guide sleeve 7. A spring 9 is arranged below the guide block 10, the bottom end of the spring 9 is connected to the bottom wall of the inner cavity of the guide sleeve 7, and the top end of the spring 9 is connected to the lower surface of the guide block 10;

[0032] The upper surface edge of the base 6 between the guide sleeves 7 is symmetrically mounted with an electrostatic rod 8, and the top of the electrostatic rod 8 corresponds to the bottom of the metal edging 5;

[0033] It should be noted that when the suspended structure of the single-walled carbon nanotube is working, the base plate 1 is first pressed downward manually to make the guide block 10 slide downward in cooperation with the guide sleeve 7, and the spring 9 is compressed and deformed, so that the bottom of the metal edging 5 covered by the edge of the base plate 1 abuts against the top of the electrostatic rod 8, so that the static charge at the base plate 1 absorbed by the metal edging 5 is eliminated through the electrostatic rod 8, thereby eliminating the influence of the static charge on the single-walled carbon nanotube body 4, ensuring that the single-walled carbon nanotube body 4 can be neatly arranged, and then the elastic force of the spring 9 is used to reset the base plate 1, and one pole of the electrode pair array is arranged on the base plate 1. The independent electrode array 2 on one side has no electrical connection, so that large-scale independent devices can be manufactured. The other electrode is the non-independent electrode array 3 arranged on the other side of the substrate 1. During the sensor implementation process, the non-independent electrode array 3 is connected to the input end of the signal source. The independent electrode array 2 is composed of a plurality of independent electrodes. The non-independent electrode array 3 is composed of a plurality of non-independent electrodes electrically connected to each other. The single-walled carbon nanotube body 4 is directionally placed between the independent electrode and the non-independent electrode by the method of AC-coupled dielectric electrophoresis, and the suspension of the single-walled carbon nanotube body 4 is achieved by over-discharge.

[0034] like Figure 1 , Figure 4 As shown, the edge of the metal edging 5 is rotatably connected to a frame plate 11, and a handle is installed on the outer wall of the frame plate 11, and an elastic rubber membrane 12 is installed on the inner side of the frame plate 11, and the size of the elastic rubber membrane 12 is larger than that of the base plate 1, and the surface of the elastic rubber membrane 12 close to the base plate 1 is coated with an adhesive layer 13;

[0035] It should be noted that by flipping the frame plate 11 to the top of the base plate 1 and manually pressing the elastic rubber film 12 to make it fit with the upper structure of the base plate 1, the adhesive layer 13 is used to clean the impurities attached to the upper structure of the base plate 1 to avoid the attached impurities from affecting the discharge process, which is beneficial to the suspension of the single-walled carbon nanotube body 4.

[0036] like Figure 1 , Figure 2 As shown, the guide block 10 and the metal edging 5 are an integrally formed structure, and the metal edging 5 is made of copper material;

[0037] It should be noted that the metal edging 5 is conducive to conducting static charges on the base plate 1 .

[0038] like Figure 2 , Figure 3 As shown, there is clearance fit between the guide block 10 and the guide sleeve 7;

[0039] It should be noted that the stability of the guide block 10 in cooperation with the guide sleeve 7 during the sliding process is ensured, thereby ensuring the stability of the base plate 1 during the up and down movement.

[0040] like Figure 3 As shown, the top of the electrostatic rod 8 is arranged in a hemispherical structure;

[0041] It should be noted that the top of the electrostatic rod 8 can be effectively prevented from scratching the metal edging 5 , and the metal edging 5 can be protected to a certain extent. The model of the electrostatic rod 8 is CSZ345.

[0042] When in use: first, the base plate 1 is pressed down manually, so that the guide block 10 slides downward with the guide sleeve 7, and the spring 9 is compressed and deformed, and the bottom of the metal edging 5 covered by the edge of the base plate 1 is abutted against the top of the electrostatic rod 8, so that the static charge at the base plate 1 absorbed by the metal edging 5 is eliminated through the electrostatic rod 8, thereby eliminating the influence of the static charge on the single-walled carbon nanotube body 4, ensuring that the single-walled carbon nanotube body 4 can be neatly arranged, and then the elastic force of the spring 9 is used to reset the base plate 1, and the electrode pair array is an independent electrode array arranged on one side of the base plate 1. 2. The independent electrode array 2 is not electrically connected, and can realize the production of large-scale independent devices. The other electrode is the non-independent electrode array 3 arranged on the other side of the substrate 1. In the sensor implementation process, the non-independent electrode array 3 is connected to the input end of the signal source. The independent electrode array 2 is composed of a plurality of independent electrodes, and the non-independent electrode array 3 is composed of a plurality of non-independent electrodes electrically connected to each other. The single-walled carbon nanotube body 4 is directionally placed between the independent electrode and the non-independent electrode by the method of AC coupled dielectric electrophoresis, and the single-walled carbon nanotube body 4 is suspended by over-discharge.

[0043] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A suspended structure of a single-walled carbon nanotube, comprising a base plate (1), an independent electrode array (2) and a non-independent electrode array (3) mounted on the upper surface of the base plate (1), and a single-walled carbon nanotube body (4) arranged above the non-independent electrode array (3), characterized in that: The edge of the base plate (1) is coated with a metal edging (5), and guide blocks (10) are provided at both ends of the metal edging (5); A base (6) is installed below the base plate (1), a guide sleeve (7) is symmetrically fixedly connected to the edge of the upper surface of the base (6), and the guide block (10) extends to the inner side of the guide sleeve (7), a spring (9) is arranged below the guide block (10), the bottom end of the spring (9) is connected to the bottom wall of the inner cavity of the guide sleeve (7), and the top end of the spring (9) is connected to the lower surface of the guide block (10); An electrostatic rod (8) is symmetrically mounted on the edge of the upper surface of the base (6) between the guide sleeves (7), and the top of the electrostatic rod (8) corresponds to the bottom of the metal edging (5).

2. The suspended structure of a single-walled carbon nanotube according to claim 1, characterized in that: The edge of the metal edging (5) is rotatably connected to a frame plate (11), and a handle is installed on the outer wall of the frame plate (11).

3. The suspended structure of a single-walled carbon nanotube according to claim 2, characterized in that: An elastic rubber membrane (12) is installed on the inner side of the frame plate (11), and the size of the elastic rubber membrane (12) is larger than the size of the base plate (1).

4. The suspended structure of single-walled carbon nanotubes according to claim 3, characterized in that: The surface of the elastic rubber film (12) close to the base plate (1) is coated with an adhesive layer (13).

5. The suspended structure of single-walled carbon nanotubes according to claim 1, characterized in that: The guide block (10) and the metal edging (5) are an integrally formed structure, and the metal edging (5) is made of copper material.

6. The suspended structure of single-walled carbon nanotubes according to claim 1, characterized in that: The guide block (10) and the guide sleeve (7) are clearance-fitted.

7. The suspended structure of single-walled carbon nanotubes according to claim 1, characterized in that: The top of the electrostatic rod (8) is arranged in a hemispherical structure.

Images