CN112230169A - Carbon nanotube electric field detection device - Google Patents
Carbon nanotube electric field detection device Download PDFInfo
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- CN112230169A CN112230169A CN202011265668.0A CN202011265668A CN112230169A CN 112230169 A CN112230169 A CN 112230169A CN 202011265668 A CN202011265668 A CN 202011265668A CN 112230169 A CN112230169 A CN 112230169A
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- carbon nanotube
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
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Abstract
The invention provides a carbon nano tube electric field detection device which comprises a substrate, a heating part, a carbon nano tube layer, a first electrode, a second electrode and an organic conjugated polymer material, wherein a pit is formed in the surface of the substrate, the heating part fills the pit, the carbon nano tube layer is arranged on the substrate and the heating part, the first electrode and the second electrode are respectively arranged on two sides of the heating part on the carbon nano tube layer, and the organic conjugated polymer material is arranged on the carbon nano tube layer on the top of the heating part. The invention has the advantage of high electric field detection sensitivity. In addition, the invention is based on the traditional electricity, and has simple equipment and low cost.
Description
Technical Field
The invention relates to the field of electric field detection, in particular to a carbon nano tube electric field detection device.
Background
The measurement of the electric field has great significance for launching missiles, rockets and aircrafts, and also has wide application in places which are easy to cause static electricity and are easy to be damaged by static electricity and radars on the ground, such as urban environmental pollution, ultra-clean laboratories, oil refineries, oil storage stations and the like. The traditional electric field measuring device has low sensitivity, and the exploration of an electric field detection technology based on a new principle has important significance for improving the sensitivity of electric field measurement.
Disclosure of Invention
In order to solve the above problems, the present invention provides a carbon nanotube electric field detection apparatus, which includes a substrate, a heating portion, a carbon nanotube layer, a first electrode, a second electrode, and an organic conjugated polymer material, wherein a pit is formed on a surface of the substrate, the heating portion fills the pit, the carbon nanotube layer is disposed on the substrate and the heating portion, the first electrode and the second electrode are disposed on two sides of the heating portion on the carbon nanotube layer, respectively, and the organic conjugated polymer material is disposed on the carbon nanotube layer on a top of the heating portion.
Further, the organic conjugated polymer material is poly-3-hexylthiophene.
Further, on top of the heating portion, the carbon nanotube layer is coated with an organic conjugated polymer material.
Further, the direction of the carbon nanotubes in the carbon nanotube layer is along the direction of the line connecting the first electrode and the second electrode.
Further, the first electrode and the second electrode fix the carbon nanotube layer such that the carbon nanotubes are in a taut state.
Further, the carbon nanotubes in the carbon nanotube layer are multilayered.
Further, the number of carbon nanotubes in the carbon nanotube layer is greater than 5.
Further, the material of the first electrode and the second electrode is gold or silver.
The invention has the beneficial effects that: the invention provides a carbon nano tube electric field detection device which comprises a substrate, a heating part, a carbon nano tube layer, a first electrode, a second electrode and an organic conjugated polymer material, wherein a pit is formed in the surface of the substrate, the heating part fills the pit, the carbon nano tube layer is arranged on the substrate and the heating part, the first electrode and the second electrode are respectively arranged on two sides of the heating part on the carbon nano tube layer, and the organic conjugated polymer material is arranged on the carbon nano tube layer on the top of the heating part. When the method is applied, firstly, measuring the conductive property of the carbon nano tube layer in an electric field-free space, wherein the heating part is at normal temperature; and then placing the carbon nanotube layer and the organic conjugated polymer material in an electric field space to be detected, heating the carbon nanotube layer and the organic conjugated polymer material by the heating part, cooling the carbon nanotube layer and the organic conjugated polymer material after heating for a period of time, re-measuring the conductive characteristics of the carbon nanotube layer, and determining the electric field to be detected according to the change of the conductive characteristics of the front and rear carbon nanotube layers. In the process, the direction of the molecular chain of the organic conjugated polymer material is changed by the electric field to be detected, so that the shape and stress of the carbon nano tubes in the carbon nano tube layer and homojunction between adjacent carbon nano tubes are changed, and the conductive characteristic of the carbon nano tube layer is changed. The invention has the advantage of high electric field detection sensitivity because the molecular chain direction of the organic conjugated polymer material is heavily dependent on the electric field around the organic conjugated polymer material and the conductive property of the carbon nano tube is also heavily dependent on the state of the organic conjugated polymer material and the surrounding environment during heating. In addition, the invention is based on the traditional electricity, and has simple equipment and low cost.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of an apparatus for detecting an electric field of a carbon nanotube.
FIG. 2 is a schematic view of another carbon nanotube electric field detecting apparatus.
In the figure: 1. a substrate; 2. a heating section; 3. a carbon nanotube layer; 4. a first electrode; 5. a second electrode; 6. an organic conjugated polymer material.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
Example 1
The invention provides a carbon nano tube electric field detection device. As shown in fig. 1, the carbon nanotube electric field detection device includes a substrate 1, a heating portion 2, a carbon nanotube layer 3, a first electrode 4, a second electrode 5, and an organic conjugated polymer material 6. The surface of the substrate 1 is provided with a pit, and the heating portion 2 fills the pit. The substrate 1 is made of a heat insulating material for insulating heat generated from the heating portion. The heating part 2 may generate a high temperature by a method of connecting other high temperature objects, or may generate a high temperature by generating heat through a resistance, and is not particularly limited herein. The carbon nanotube layer 3 is disposed on the substrate 1 and the heating part 2. The first electrode 4 and the second electrode 5 are respectively disposed on the carbon nanotube layer 3 at both sides of the heating part 2, so that the conductive characteristics of the carbon nanotube layer 3 can be measured by the first electrode 4 and the second electrode 5. The material of the first electrode 4 and the second electrode 5 is gold or silver. An organic conjugated polymer material 6 is disposed on the carbon nanotube layer 3 on top of the heating portion 2. The heating unit 2 heats the organic conjugated polymer material 6 through the carbon nanotube layer 3. The organic conjugated polymer material 6 is poly-3-hexylthiophene. When the electric field is heated, the micro appearance of the poly-3-hexylthiophene is easier to be regulated and controlled by the electric field to be measured.
When the method is applied, firstly, the conductive property of the carbon nano tube layer 3 is measured in an electric field-free space, and the heating part 2 is at normal temperature; then the invention is placed in the electric field space to be measured, the heating part 2 heats the carbon nano tube layer 3 and the organic conjugated polymer material 6, after heating for a period of time, the carbon nano tube layer 3 and the organic conjugated polymer material 6 are cooled, the conductive characteristic of the carbon nano tube layer 3 is measured again, and the electric field to be measured is determined according to the change of the conductive characteristic of the carbon nano tube layer 3 before and after the measurement. The heating is carried out at a temperature greater than 130 degrees celsius for a time greater than 30 minutes to facilitate sufficient modification of the microstructure of the organic conjugated polymeric material 6. In the process, the electric field to be measured changes the direction of the molecular chain of the organic conjugated polymer material 6, so that the shape and stress of the carbon nano tubes in the carbon nano tube layer 3 and homojunction between adjacent carbon nano tubes are changed, and the conductive characteristic of the carbon nano tube layer 3 is changed. Since the molecular chain direction of the organic conjugated polymer material 6 is heavily dependent on the electric field around it and the conductive property of the carbon nanotube is also heavily dependent on its own state and the surrounding environment when heated, the present invention has an advantage of high electric field detection sensitivity. In addition, the invention is based on the traditional electricity, and has simple equipment and low cost.
In the present invention, on the one hand, the conductive properties of a carbon nanotube are heavily dependent on its own stress and its surrounding environment; on the other hand, carbon nanotubes are good thermal conductors and can transfer heat to the organic conjugated polymer material 6 well, thereby changing the direction of molecular chains in the organic conjugated polymer material 6 more. Both effects are beneficial to changing the conductive characteristic of the carbon nanotube layer 3 more, thereby realizing electric field detection with higher sensitivity.
Example 2
In addition to example 1, as shown in fig. 2, the carbon nanotube layer 3 is coated with an organic conjugated polymer material 6 on the top of the heating portion 2. That is, the organic conjugated polymer material 6 is further disposed at the bottom of the carbon nanotube layer 3, and the organic conjugated polymer material 6 is disposed around the carbon nanotubes. Thus, the change of the molecular chain direction of the organic conjugated polymer material 6 can change the shape and self-stress of the carbon nanotubes and homojunction between adjacent carbon nanotubes more, so that the conductive property of the carbon nanotube layer 3 is changed more, and the electric field detection with higher sensitivity is realized.
Example 3
On the basis of embodiment 2, the direction of the carbon nanotubes in the carbon nanotube layer 3 is along the connecting line direction of the first electrode 4 and the second electrode 5. The first electrode 4 and the second electrode 5 fix the carbon nanotube layer 3 such that the carbon nanotubes are in a taut state. Therefore, when the molecular chain direction of the organic conjugated polymer material 6 is changed, more stress changes are generated inside the carbon nano tube under the extrusion of the molecules of the organic conjugated polymer material 6, so that the conductive characteristic of the carbon nano tube is changed more, and the electric field detection with higher sensitivity is realized.
Further, the carbon nanotubes in the carbon nanotube layer 3 are multilayered. Specifically, the number of carbon nanotubes in the carbon nanotube layer 3 is greater than 5. Thus, when the molecular chain direction of the organic conjugated polymer material 6 is changed to extrude the carbon nanotubes, the distance between the carbon nanotubes in the same layer is changed, and the distance between the carbon nanotubes in different layers is changed, so that the conductive property of the carbon nanotube layer 3 is changed more, and the electric field detection with higher sensitivity is realized.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. The carbon nanotube electric field detection device is characterized by comprising a substrate, a heating part, a carbon nanotube layer, a first electrode, a second electrode and an organic conjugated polymer material, wherein a pit is formed in the surface of the substrate, the heating part fills the pit, the carbon nanotube layer is arranged on the substrate and the heating part, the first electrode and the second electrode are respectively arranged on the carbon nanotube layer at two sides of the heating part, and the organic conjugated polymer material is arranged on the carbon nanotube layer at the top of the heating part.
2. The carbon nanotube electric field sensing device of claim 1, wherein: the organic conjugated polymer material is poly-3-hexylthiophene.
3. The carbon nanotube electric field detecting device according to claim 2, wherein: and the organic conjugated polymer material coats the carbon nano tube layer on the top of the heating part.
4. The carbon nanotube electric field sensing device of claim 3, wherein: the direction of the carbon nanotubes in the carbon nanotube layer is along the direction of the connection line of the first electrode and the second electrode.
5. The carbon nanotube electric field sensing device of claim 4, wherein: the first electrode and the second electrode fix the carbon nanotube layer so that the carbon nanotubes are in a taut state.
6. The carbon nanotube electric field sensing device of claim 5, wherein: the carbon nano tubes in the carbon nano tube layer are multilayer.
7. The carbon nanotube electric field sensing device of claim 6, wherein: the number of carbon nano tubes in the carbon nano tube layer is more than 5.
8. The carbon nanotube electric field sensing device of claim 7, wherein: the first electrode and the second electrode are made of gold or silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265668.0A CN112230169A (en) | 2020-11-13 | 2020-11-13 | Carbon nanotube electric field detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265668.0A CN112230169A (en) | 2020-11-13 | 2020-11-13 | Carbon nanotube electric field detection device |
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| Publication Number | Publication Date |
|---|---|
| CN112230169A true CN112230169A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011265668.0A Withdrawn CN112230169A (en) | 2020-11-13 | 2020-11-13 | Carbon nanotube electric field detection device |
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| Country | Link |
|---|---|
| CN (1) | CN112230169A (en) |
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2020
- 2020-11-13 CN CN202011265668.0A patent/CN112230169A/en not_active Withdrawn
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Application publication date: 20210115 |