TWI452007B - Nano carbon tube membrane bearing structure and using method thereof - Google Patents

Description

Nano carbon tube membrane bearing structure and using method thereof

The invention relates to a carbon nanotube membrane bearing structure and a method of using same.

The carbon nanotube is a hollow tube rolled from a graphene sheet, which has excellent mechanical, thermal and electrical properties. Nano carbon nanotubes are used in a wide range of applications, for example, in the production of field effect transistors, atomic force microscope tips, field emission electron guns, nano templates, and the like. However, at present, the application of carbon nanotubes at the microscopic scale is basically difficult. Therefore, the assembly of nano-carbon tubes into a macro-scale structure is of great significance for the macroscopic application of carbon nanotubes.

The macrostructure of the previous carbon nanotubes mainly consists of carbon nanotube membranes. However, the macrostructures of nanocarbon tubes such as carbon nanotube membranes have large specific surface area and macroscopically exhibit strong viscosity. Once exposed to other The objects will stick and be difficult to separate, so it will bring great difficulties in preserving and transferring the macrostructure of the carbon nanotubes, thus greatly limiting the further application of the carbon nanotube structure such as the carbon nanotube film in the macroscopic field.

In view of this, it is necessary to provide a carbon nanotube film bearing structure and a method of using the same.

A carbon nanotube film bearing structure for carrying a carbon nanotube film structure, and the carbon nanotube film structure can be completely intact from the bearing after contacting the bearing structure The structure is detached, wherein the carbon nanotube film bearing structure comprises a body, the body has a surface, the surface of the body has a carbon nanotube film bearing region, and the carbon nanotube film bearing region has a plurality of a recessed structure, wherein a total recessed area of the plurality of recessed structures is greater than or equal to 80% of an area of the carbon nanotube film bearing area, so that the carbon nanotube film structure is disposed on the carbon nanotube film bearing In the region, the effective contact area of the carbon nanotube film structure with the body is less than or equal to 20% of the area of the carbon nanotube film structure itself.

A method of using a carbon nanotube film carrying structure, comprising the steps of: providing at least one carbon nanotube film bearing structure, the carbon nanotube film bearing structure comprising a body, the body having a surface having a carbon nanotube film bearing region, the carbon nanotube film bearing region has a plurality of recessed structures, and a total recessed area of the plurality of recessed structures is greater than or equal to 80% of an area of the carbon nanotube film bearing region; Providing a carbon nanotube film structure; and placing the carbon nanotube film structure directly on the carbon nanotube film bearing region of the carbon nanotube film bearing structure, the carbon nanotube film The effective contact area of the structure with the carbon nanotube film support structure is less than or equal to 20% of the area of the carbon nanotube film structure itself.

Compared with the prior art, the carbon nanotube film bearing structure has the characteristics of simple structure, and the carbon nanotube film bearing structure has a plurality of concave structures on the surface of a body, so that a carbon nanotube film structure is adopted. When disposed on the surface of the carbon nanotube film bearing structure, most of the structure of the carbon nanotube film structure is suspended by the concave structure, thereby greatly reducing the film structure and the structure of the carbon nanotube film. Carbon nanotube The effective contact area of the membrane-bearing structure further reduces the van der Waals force between the membrane structure of the carbon nanotube and the carbon nanotube membrane-bearing structure, and finally realizes the preservation of the membrane structure of the carbon nanotube Transfer.

The method for using the carbon nanotube film-bearing structure realizes a carbon nanotube film structure by directly carrying a carbon nanotube film on a carbon nanotube film bearing region of a carbon nanotube film bearing structure The method of saving and transferring is simple and easy.

100;200‧‧‧Nano carbon nanotube membrane bearing structure

110; 210‧‧‧ ontology

112; 212‧‧‧ surface

114;214‧‧‧Nano carbon nanotube film bearing area

116;216‧‧‧ recessed structure

120‧‧‧Nano carbon tube membrane structure

1 is a schematic view of a carbon nanotube film bearing structure provided by a first embodiment of the present invention.

2 is a schematic view of a carbon nanotube film bearing structure provided by a second embodiment of the present invention.

FIG. 3 is a flow chart of a nano carbon tube film bearing structure for carrying a carbon nanotube film structure according to an embodiment of the present invention.

4 is a SEM photograph of a carbon nanotube film carried by a carbon nanotube film carrying structure provided by an embodiment of the present invention.

FIG. 5 is a SEM photograph of a carbon nanotube rolled film carried by a carbon nanotube film carrying structure provided by an embodiment of the present invention.

Figure 6 is a SEM photograph of a carbon nanotube flocculation membrane supported by a carbon nanotube membrane support structure provided by the practice of the present invention.

FIG. 7 is a schematic view showing the application of a carbon nanotube film supporting structure according to an embodiment of the present invention to a film structure of a carbon nanotube.

The invention will be further described in detail below with reference to the drawings and specific embodiments.

Referring to FIG. 1 , a first embodiment of the present invention provides a carbon nanotube film bearing structure 100 for carrying or protecting a carbon nanotube film structure, and the nano carbon After the tubular film structure is in contact with the carbon nanotube film support structure 100, it can be completely peeled off from the carbon nanotube film bearing structure 100. The carbon nanotube film bearing structure 100 includes a body 110, wherein the body 110 has a surface 112 on which a carbon nanotube film bearing region 114 is disposed. The carbon nanotube film bearing region 114 is used to carry a carbon nanotube film structure. The carbon nanotube film bearing region 114 has a plurality of recessed structures 116. The total recessed area of the plurality of recessed structures 116 is greater than or equal to 80% of the area of the carbon nanotube film bearing area 114, so that a carbon nanotube film structure is disposed in the carbon nanotube film bearing area. At 114 o'clock, the effective contact area of the carbon nanotube film structure with the body 110 is less than 20% of the area of the carbon nanotube film structure itself, so that the carbon nanotube film structure can be completely from the The surface 112 of the body 110 is peeled off. Preferably, the total recessed area of the plurality of recessed structures 116 is greater than or equal to 90% of the area of the carbon nanotube film bearing region 114, so that a carbon nanotube film structure is disposed on the carbon nanotubes. When the film carries the region 114, the effective contact area of the carbon nanotube film structure with the body 110 is less than 10% of the area of the carbon nanotube film structure itself.

The body 110 is a sheet-like structure having a certain strength, and its shape and size can be designed according to actual needs. The material of the body 110 can be selected from a flexible material having a strong or a certain strength. Specifically, the material of the body 110 is selected from the group consisting of metals, metal oxides, ceramics, resins, and the like. The surface 112 of the body 110 may be a flat surface or a curved surface Or other irregular faces.

The carbon nanotube film bearing region 114 may be the entire surface 112 or a portion of the surface 112 of the body 110. The carbon nanotube film bearing region 114 includes a plurality of recessed structures 116 that are spaced apart from one another. The recessed structure 116 can be formed on the surface 112 of the body 110 by chemical or physical methods. The plurality of recessed structures 116 may be micropores, grooves or a combination of micropores and grooves. The micropores may be through holes or blind holes, and the shape of the cross section of the micro holes is not limited to a circular shape, and may be other regular or irregular geometric shapes such as a square, a rectangle, an ellipse or the like. The groove may be elongated or otherwise shaped. Preferably, the surface 112 of the body 110 is formed with a plurality of uniformly distributed and spaced micropores, the micropores may have a diameter of 100 micrometers to 1 millimeter, and the spacing between adjacent microholes is 10 micrometers to 100 millimeters. In micrometers, the micropores have a depth of 1 micrometer to 1 millimeter. It can be understood that the micropores can also adopt a combination of other different structures. It is only required that the ratio of the diameter and the pitch of the micropores is greater than or equal to 5:1, and the pitch of the micropores is less than or equal to 100 micrometers, so that the total recessed area of the plurality of recessed structures 116 is greater than or equal to the nanocarbon. 80% of the area of the tubular membrane bearing region 114, such that when a carbon nanotube membrane structure is disposed in the carbon nanotube membrane bearing region 114, the carbon nanotube membrane structure and the nanocarbon The effective contact area of the tubular membrane bearing region 114 is less than 20% of the area of the carbon nanotube membrane structure 120 itself. Preferably, the ratio of the diameter and the pitch of the micropores is greater than or equal to 10:1, and the pitch of the micropores is less than or equal to 100 micrometers, such that the total recessed area of the plurality of recessed structures 116 is greater than or equal to the nanocarbon. 90% of the area of the tubular membrane bearing region 114, such that when a carbon nanotube membrane structure is disposed in the carbon nanotube membrane bearing region 114, the carbon nanotube membrane structure and the nanocarbon Effective connection of the membrane bearing area 114 The contact area is less than 10% of the area of the carbon nanotube film structure 120 itself.

In this embodiment, the body 110 is a square anodized aluminum foil having a side length of 10 cm. The anodized aluminum flakes were prepared by anodization. The anodized aluminum foil has a plurality of uniformly distributed micropores with a distance between adjacent micropores of about 50 microns. The micropores have a diameter of about 500 microns.

Referring to FIG. 2, a second embodiment of the present invention provides a carbon nanotube film bearing structure 200 for carrying or protecting a carbon nanotube film structure, and the nano carbon After the tubular membrane structure is in contact with the carbon nanotube membrane support structure 200, it can be completely peeled off from the carbon nanotube membrane support structure 200. The carbon nanotube film carrying structure 200 includes a body 210, wherein the body 210 has a surface 212 on which a carbon nanotube film bearing region 214 is disposed. The carbon nanotube film bearing region 214 is used to carry a carbon nanotube film structure. The carbon nanotube film bearing region 214 has a plurality of recessed structures 216. The total recessed area of the plurality of recessed structures 216 is greater than or equal to 80% of the area of the carbon nanotube film bearing region 214, so that a carbon nanotube film structure is disposed on the carbon nanotube film bearing region. At 214 hours, the effective contact area of the carbon nanotube film structure with the body 210 is less than 20% of the area of the carbon nanotube film structure itself, and the carbon nanotube film structure can be completely from the body The surface 212 of 210 is peeled off. Preferably, the total recessed area of the plurality of recessed structures 216 is greater than or equal to 90% of the area of the carbon nanotube film bearing region 214, so that a carbon nanotube film structure is disposed on the carbon nanotubes. In the membrane bearing region 214, the effective contact area of the carbon nanotube film structure with the body 210 is less than 10% of the area of the carbon nanotube film structure itself.

In this embodiment, the body 210 is a ceramic sheet having a certain strength. The nai The carbon nanotube film bearing region 214 is a partial surface of the ceramic sheet. The carbon nanotube film bearing region 214 includes a plurality of grooves 216. The plurality of grooves 216 are evenly distributed and spaced apart from each other. The groove 216 can be formed on the surface 212 of the body 210 by chemical or physical means. The groove 216 may have a width of 100 micrometers to 1 millimeter and a spacing between adjacent grooves 216 of 10 micrometers to 100 micrometers. The groove 216 has a depth of 1 micrometer to 1 millimeter. It will be appreciated that a plurality of grooves 216 formed in the surface 212 of the body 210 may also be combined with other different configurations. It is only required that the ratio of the width and the pitch of the groove 216 is greater than or equal to 5:1, and the pitch of the groove 216 is less than or equal to 100 micrometers, so that the total concave area of the plurality of grooves 216 is greater than or equal to the The carbon nanotube film bearing region 214 has an area of 80%, such that when a carbon nanotube film structure is disposed in the carbon nanotube film bearing region 214, the carbon nanotube film structure and the nai The effective contact area of the carbon nanotube film bearing region 214 is less than 20% of the area of the carbon nanotube film structure itself. Preferably, the ratio of the width and the pitch of the groove is greater than or equal to 10:1, and the pitch of the groove is less than or equal to 100 micrometers, such that the total recessed area of the plurality of grooves 116 is greater than or equal to the nanocarbon. 90% of the area of the tubular membrane bearing region 214, such that when a carbon nanotube membrane structure is disposed in the carbon nanotube membrane bearing region 214, the carbon nanotube membrane structure and the nanocarbon The effective contact area of the tubular membrane bearing region 214 is less than 10% of the area of the carbon nanotube membrane structure itself.

Referring to FIG. 3, the present invention further provides a method for using the carbon nanotube film bearing structure 100. The method mainly includes the following steps: (S101) providing at least one carbon nanotube film bearing structure, the nano carbon The tubular membrane supporting structure comprises a body having a surface having a carbon nanotube membrane bearing region, the nanocarbon The tubular film bearing region has a plurality of concave structures, and the total concave area of the plurality of concave structures is greater than or equal to 80% of the area of the carbon nanotube film bearing region; (S102) providing a carbon nanotube film structure; (S103) directly placing the carbon nanotube film-like structure on a carbon nanotube film bearing region of the carbon nanotube film bearing structure, the carbon nanotube film structure and the carbon nanotube The effective contact area of the membrane-bearing structure is less than 20% of the area of the carbon nanotube membrane structure itself.

Step S101, providing at least one carbon nanotube film bearing structure, the carbon nanotube film supporting structure comprising a body, the body having a surface having a carbon nanotube film bearing region, the nano carbon The tube film bearing region has a plurality of recessed structures, and the total recessed area of the plurality of recessed structures is greater than or equal to 80% of the area of the carbon nanotube film bearing region.

The carbon nanotube film bearing structure is the carbon nanotube film bearing structure 100 provided by the first embodiment of the present invention. It can be understood that the carbon nanotube film bearing structure can also be the carbon nanotube film bearing structure 200 or other structure provided by the second embodiment of the present invention.

Step S102, providing a carbon nanotube film structure.

A carbon nanotube film structure 120 is provided, the carbon nanotube film structure 120 comprising at least one carbon nanotube film. The carbon nanotube film can be a carbon nanotube film, a carbon nanotube film or a carbon nanotube film.

Referring to FIG. 4, the carbon nanotube film is a unitary structure obtained by directly pulling from a carbon nanotube array. The carbon nanotube film is a self-supporting structure composed of a plurality of carbon nanotubes. The self-supporting structure means that the carbon nanotube film can be supported without a substrate Self-support exists. The plurality of carbon nanotubes extend in a preferred orientation along substantially the same direction. The preferred orientation means that the overall extension direction of most of the carbon nanotubes in the carbon nanotube film is substantially in the same direction. Moreover, the overall direction of extension of the majority of the carbon nanotubes is substantially parallel to the surface of the carbon nanotube film. Further, most of the carbon nanotubes in the carbon nanotube film are connected end to end by van der Waals and extend substantially in the same direction. For the carbon nanotube film and the preparation method thereof, please refer to the Taiwan invention patent application publication specification of the TW I327177 filed on July 12, 2010, filed on July 11, 2010.

The carbon nanotube rolled film comprises uniformly distributed carbon nanotubes which are disordered and arranged in a preferred orientation in the same direction or in different directions. Referring to FIG. 5, preferably, the carbon nanotubes in the carbon nanotube rolled film extend substantially in the same direction and are parallel to the surface of the carbon nanotube rolled film. The carbon nanotubes in the carbon nanotube rolled film overlap each other. The carbon nanotubes in the carbon nanotube film are attracted to each other by van der Waals force, and the carbon nanotubes have good flexibility and can be bent and folded into any shape. Does not break. The carbon nanotube rolled film and the preparation method thereof are described in the Taiwan Patent Application Publication No. TW200900348, which is published on Jan. 1, 2009.

Referring to FIG. 6, the carbon nanotube flocculation membrane comprises carbon nanotubes intertwined with each other. The carbon nanotubes are attracted and entangled by van der Waals forces to form a network structure. The carbon nanotube flocculation membrane is isotropic. The carbon nanotubes in the carbon nanotube flocculation membrane are uniformly distributed and arranged irregularly. The carbon nanotube flocculation film and the preparation method thereof are described in the Taiwan invention patent application publication No. TW200844041, which is published on Nov. 16, 2008.

In this embodiment, the carbon nanotube film structure 120 is a carbon nanotube film, and the carbon nanotube film is directly drawn from a carbon nanotube array, and the preparation method thereof is specific. Includes the following steps:

First, an array of carbon nanotubes formed on a growth substrate is provided, the array being a super-aligned array of carbon nanotubes.

The super-aligned carbon nanotube array is prepared by chemical vapor deposition. The preparation method of the super-sequential carbon nanotube array can be referred to Taiwan Patent Publication No. TW I303239. The super-aligned carbon nanotube array is a plurality of pure carbon nanotube arrays formed of carbon nanotubes that are parallel to each other and perpendicular to the growth substrate. By controlling the growth conditions, the super-aligned carbon nanotube array contains substantially no impurities, such as amorphous carbon or residual catalyst metal particles, and is suitable for drawing a carbon nanotube film therefrom. The carbon nanotube array provided by the embodiment of the invention is a multi-walled carbon nanotube array. The carbon nanotubes have a diameter of 0.5 to 50 nm and a length of 50 nm to 5 mm. In this embodiment, the length of the carbon nanotubes is preferably from 100 micrometers to 900 micrometers.

Next, a carbon nanotube film is obtained by pulling a carbon nanotube from the carbon nanotube array using a stretching tool, which specifically includes the following steps: (a) from the super-shoring carbon nanotube array Selecting one or a plurality of carbon nanotubes having a certain width, in this embodiment, preferably contacting the carbon nanotube array with a tape having a certain width to select one or a plurality of carbon nanotubes having a certain width; (b) The selected carbon nanotubes are drawn at a certain speed to form a plurality of carbon nanotube segments connected end to end, thereby forming a continuous carbon nanotube film. The pull direction is substantially perpendicular to the growth direction of the nanotube array.

In the above stretching process, the plurality of carbon nanotube segments are gradually peeled off the growth substrate in the stretching direction under the action of tension, and the selection is due to the effect of the vantage force between the plurality of carbon nanotube segments. A plurality of carbon nanotube segments are continuously drawn end-to-end with other carbon nanotube segments, thereby forming a continuous, uniform, and wide-width carbon nanotube film. The carbon nanotubes in the carbon nanotube film include one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube. The carbon nanotube film has a large specific surface area, so the carbon nanotube film exhibits a large viscosity on a macroscopic view.

Step S103, the film structure of the carbon nanotubes is directly disposed on a carbon nanotube film bearing region of the carbon nanotube film bearing structure, the carbon nanotube film structure and the carbon nanotube The effective contact area of the membrane-bearing structure is less than 20% of the area of the carbon nanotube membrane structure itself.

Referring to FIG. 7, the carbon nanotube film structure 120 is disposed on the carbon nanotube film bearing region 114 of the carbon nanotube film supporting structure 100, and the carbon nanotube film structure 120 is A plurality of recessed structures 116 in the carbon nanotube film bearing region 114 are suspended.

It can be understood that, since the surface 112 of the body 110 has a plurality of recessed structures 116, and the total recessed area of the recessed structure 116 is greater than or equal to 80% of the area of the carbon nanotube film bearing region 114, the When the carbon nanotube film structure 120 is disposed in the carbon nanotube film bearing region 114, the effective contact area of the carbon nanotube film structure 120 with the surface 112 of the body 110 is smaller than the carbon nanotube film. 20% of the area of the structure 120 itself, thereby reducing the van der Waals force between the carbon nanotube film structure 120 and the surface 112 of the body 110, so that the carbon nanotube film structure 120 The van der Waals force between the surfaces 112 of the body 110 is less than the van der Waals force between the plurality of carbon nanotubes in the carbon nanotube film structure 120. Therefore, when the carbon nanotube film structure 120 is disposed on the carbon nanotube film bearing structure 100, due to the difference between the carbon nanotube film structure 120 and the surface 112 of the body 110 The tile force is less than the van der Waals force between the plurality of carbon nanotubes in the carbon nanotube film structure 120, so that the carbon nanotube film structure 120 can be easily removed from the surface 112 of the body 110. The morphology and structure of the carbon nanotube film structure 120 are peeled off without destroying, thereby realizing the preservation and transfer of the carbon nanotube film structure 120.

In this embodiment, when a carbon nanotube film is disposed on the surface of the anodized aluminum foil, most of the structure of the carbon nanotube film is suspended on the surface of the anodized aluminum foil. a hole so that an effective contact area of the carbon nanotube film and the anodized aluminum foil is less than 10% of an area of the carbon nanotube film itself, thereby reducing the carbon nanotube film and the a van der Waals force between the surfaces of the anodized aluminum foil, such that the van der Waals force between the carbon nanotube film and the surface of the anodized aluminum foil is smaller than the plurality of nanometers in the carbon nanotube film There is a wind power between the carbon tubes. Therefore, when the carbon nanotube film is disposed on the surface of the anodized aluminum foil, the van der Waals force between the carbon nanotube film and the surface of the anodized aluminum foil is smaller than Describe the van der Waals force between the plurality of carbon nanotubes in the carbon nanotube film, so that the carbon nanotube film can be easily peeled off from the surface of the anodized aluminum foil without destroying the The shape and structure of the carbon nanotube film are removed, thereby realizing the preservation and transfer of the carbon nanotube film.

It can be understood that when the carbon nanotube film structure comprises a plurality of carbon nanotube films, the plurality of carbon nanotube films may be stacked or arranged side by side on the carbon nanotube film. Carrying area. Specifically, after the carbon nanotube film is disposed on the carbon nanotube film bearing region, another carbon nanotube film may be further covered to the surface of the previous carbon nanotube film, and thus repeated, A plurality of carbon nanotube films are laid on the carbon nanotube film bearing region. In addition, when the carbon nanotube film bearing region has a large area, after the carbon nanotube film is disposed in one direction on the carbon nanotube film bearing region, another nanometer can be further The carbon tube membranes are arranged side by side in a region where the carbon nanotube film bearing region is not laid with a carbon nanotube film. It can be understood that this step is an optional step.

In addition, after the carbon nanotube film structure is directly disposed on the carbon nanotube film bearing region of the carbon nanotube film bearing structure, another carbon nanotube film bearing structure may be further covered in the a surface of the carbon nanotube film structure, and contacting the carbon nanotube film bearing region in the other carbon nanotube film bearing structure with the carbon nanotube film structure to form a two sides The carbon nanotube film bearing structure is in the middle of the sandwich structure of the carbon nanotube film. In the sandwich structure, the carbon nanotube film structure is held in the middle of two carbon nanotube film bearing structures, so that the carbon nanotube film structure is located on two carbon nanotube film bearing structures having convexity Between the surfaces of the structure, and respectively contact with the surface of the two carbon nanotube film bearing structures having a convex structure, so that the carbon nanotube film structure can be more firmly fixed, thereby making the nano carbon The tubular membrane structure can be more easily preserved and transferred. In addition, the sandwich structure can also protect the carbon nanotube film structure from damage and have dustproof effects.

The carbon nanotube film bearing structure provided by the embodiment of the invention has the characteristics of simple structure and low cost. The carbon nanotube film bearing structure is provided with a plurality of concave structures on a surface of a body such that a carbon nanotube film structure is disposed on the carbon nanotube film When the surface of the structure is carried, most of the structure of the carbon nanotube film structure is suspended by the concave structure, thereby greatly reducing the film structure of the carbon nanotube film and the bearing structure of the carbon nanotube film. The effective contact area further reduces the van der Waals force between the carbon nanotube film structure and the carbon nanotube film bearing structure, and finally realizes the preservation and transfer of the carbon nanotube film structure.

The method for using the carbon nanotube film bearing structure in the embodiment of the present invention realizes the naphthalene film bearing structure by directly carrying a film structure of a carbon nanotube film on a carbon nanotube film bearing region of a carbon nanotube film bearing structure The preservation and transfer of the membrane structure of the carbon tube is simple and easy. In addition, another carbon nanotube film bearing structure is covered on the surface of the carbon nanotube film-like structure carried in the carbon nanotube film bearing structure to form a carbon nanotube film bearing structure on both sides. In the middle is a sandwich structure of a carbon nanotube film structure. The film structure of the carbon nanotubes is held in the middle of the two carbon nanotube film-bearing structures, so that the film structure of the carbon nanotubes is more firmly fixed. In addition, the sandwich structure can also prevent the film structure of the carbon nanotube from being damaged by external forces, and also has the function of dustproofing.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Nano carbon nanotube membrane bearing structure

110‧‧‧ body

112‧‧‧ surface

114‧‧‧Nano carbon nanotube film bearing area

116‧‧‧ recessed structure

Claims (10)

A method of using a carbon nanotube film carrying structure, comprising the steps of: providing at least one carbon nanotube film bearing structure, the carbon nanotube film bearing structure comprising a body, the body having a surface, the surface Having a carbon nanotube film bearing region, the carbon nanotube film bearing region has a plurality of recessed structures, and the total recessed area of the plurality of recessed structures is greater than or equal to 80% of the area of the carbon nanotube film bearing region Providing a carbon nanotube film structure; and placing the carbon nanotube film structure directly on the carbon nanotube film bearing region of the carbon nanotube film bearing structure, the carbon nanotube film The effective contact area of the structure with the carbon nanotube film bearing structure is less than or equal to 20% of the area of the carbon nanotube film structure itself. The method of using the carbon nanotube film-bearing structure according to claim 1, wherein the carbon nanotube film structure is suspended at the plurality of recess structures. The method for using a carbon nanotube film-bearing structure according to claim 1, wherein the carbon nanotube film structure comprises at least one carbon nanotube film, and the carbon nanotube film comprises a plurality of nano carbons In the tube, the plurality of carbon nanotubes are connected end to end by van der Waals force and extend in a preferred orientation in the same direction. The method for using a carbon nanotube membrane supporting structure according to claim 3, wherein the carbon nanotube membrane is a self-supporting structure composed of a plurality of carbon nanotubes. The method of using the carbon nanotube film-bearing structure according to claim 3, wherein the carbon nanotube film is a unitary structure obtained by pulling from a carbon nanotube array. The method for using a carbon nanotube film-bearing structure according to claim 1, wherein the carbon nanotube film-like structure is directly disposed on the nano-carbon nanotube film-bearing structure of the nanometer. After the carbon nanotube film bearing region, the method further comprises: covering another carbon nanotube film bearing structure on the surface of the carbon nanotube film structure, so that the carbon nanotube film structure is located on the two carbon nanotube film bearing The structure has a surface between the recessed structures. The method for using a carbon nanotube film-bearing structure according to claim 1, wherein the plurality of recessed structures are a plurality of micropores arranged in parallel and spaced apart from each other, and the ratio of the diameter to the pitch of the micropores is greater than or equal to 5 :1, and the pitch of the micropores is less than or equal to 100 μm. The method of using the carbon nanotube film-bearing structure according to claim 7, wherein the micropores have a diameter of from 100 μm to 1 mm, and a spacing between adjacent micropores is from 10 μm to 100 μm. The method for using a carbon nanotube film bearing structure according to claim 1, wherein the plurality of recessed structures are a plurality of evenly spaced and spaced apart elongated grooves, and the ratio of the width to the pitch of the grooves It is greater than or equal to 5:1, and the pitch of the grooves is less than or equal to 100 micrometers. The method of using the carbon nanotube film-bearing structure according to claim 9, wherein the groove has a width of 100 μm to 1 mm, and a spacing between adjacent grooves is 10 μm to 100 μm.