CN108306633A - A kind of logic switch based on the transmission of graphene micro-nano structure array - Google Patents
A kind of logic switch based on the transmission of graphene micro-nano structure array Download PDFInfo
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- CN108306633A CN108306633A CN201810044477.8A CN201810044477A CN108306633A CN 108306633 A CN108306633 A CN 108306633A CN 201810044477 A CN201810044477 A CN 201810044477A CN 108306633 A CN108306633 A CN 108306633A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
- H03K17/943—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector using a plurality of optical emitters or detectors, e.g. keyboard
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
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Abstract
The present invention relates to a kind of logic switches based on the transmission of graphene micro-nano structure array, including detection components and detection conversion equipment, detection conversion equipment includes shaft, along the circumferentially equally distributed multiple detection units of shaft, the connecting rod for coupling detection unit and shaft；The detection components include transmitter unit, receiving unit；And be provided between transmitter unit, receiving unit for detection unit by gap.The detection unit includes external stability frame, upper high transparent glass, lower high transparent glass and graphene cross array structural slab.This novel logic switch based on micro-nano structure array transmission provided by the invention, it is entirely different with the frame mode of existing logic switch, it can not only realize the judgement of two kinds of logical operations, and it can realize multiple logical operations, it can be used as logic switch, and it is easy to operation, it is advantageously implemented the adjusting of dynamic change.
Description
Technical field
The invention belongs to automatic control technology fields, and in particular to a kind of patrolling based on the transmission of graphene micro-nano structure array
Collect switch.
Background technology
Logic switch (or being pressure logic switch) is a kind of control instrument being widely used in automatic control system.
Logic switch is commonly used to measure the pressure or temperature of the fluids such as gas or liquid.It is higher than in the pressure or temperature of detected fluid
Or when less than rated value, logic switch can corresponding actions and change the on off operating mode of the microswitch that it is included, and then reach
The mesh automatically controlled.
Existing logic switch mainly have using mechanical system, circuit mode and PN junction mode be designed into
The relevant rated value of row judges, and makes corresponding action.
Invention content
The present invention provides a kind of logic switches based on the transmission of graphene micro-nano structure array.The invention solves skill
Art problem is achieved through the following technical solutions：A kind of logic switch based on the transmission of graphene micro-nano structure array, including detection
Component and detection conversion equipment, detection conversion equipment include shaft, along the circumferentially equally distributed multiple detection units of shaft, be used for
Couple the connecting rod of detection unit and shaft, one end of the connecting rod is connect with shaft, and the other end of connecting rod and detection are single
Member connection；
The detection components include transmitter unit, receiving unit；The transmitter unit, receiving unit are correspondingly arranged, and
Be provided between transmitter unit, receiving unit for detection unit by gap.
The detection unit includes：External stability frame, upper high transparent glass, lower high transparent glass and graphene cross array structure
Plate；The graphene cross array structural slab is clamped between upper high transparent glass and lower high transparent glass, the upper high transparent glass with
Lower high transparent glass is fixed by external stability frame；
The angle α of the single graphene cross of the graphene cross array of the graphene cross array structural slab be [0 °,
90°]；
The angle α of each graphene cross of the graphene cross array of the graphene cross array structural slab is homogeneous
Together, and the angle α of the graphene cross of the graphene cross array of the graphene cross array structural slab of different detection units is equal
It differs.
Further, it there are four the detection unit settings, and is symmetrically set as cross.With prior art phase
Than beneficial effects of the present invention：
1, this novel logic switch based on micro-nano structure array transmission provided by the invention, with existing logic switch
Frame mode it is entirely different, can not only realize the judgement of two kinds of logical operations, and can realize multiple logical operations, can
It is used as logic switch, and easy to operation, is advantageously implemented the adjusting of dynamic change.
2, the present invention drives detection unit to rotate by the rotation of shaft, and it is different that detection unit conversion realizes that incident light generates
Effect and tool there are two transmission paddy transmission spectral line, so as to obtain it is multiple transmission spectral lines the corresponding waves in transmission paddy position
Length is poor, can carry out multiple logical condition screenings by transmiting the corresponding wavelength difference in paddy position, can realize multiple logical operations, can
It is used as logic switch, and easy to operation, is advantageously implemented the adjusting of dynamic change.
3, a kind of logic switch based on micro-nano structure array transmission provided by the invention, is to be based on the other optics of micro-nano
Logical device, can accomplish extra small ultra-thin, furthermore, it is possible to be applied to multi-field control system, logic judgment can identify small
Variation judges accurate.
Description of the drawings
Fig. 1 is single graphene cross array structural schematic diagram；
Fig. 2 is detection unit structural schematic diagram；
Fig. 3 is the structural schematic diagram for detecting conversion equipment；
Fig. 4 is to transmit logic switch structural schematic diagram based on micro-nano structure array；
Fig. 5 is detection components structural schematic diagram；
Fig. 6 corresponding transmission spectral line schematic diagrames when being the angle α variation of graphene cross array structure；
Fig. 7 corresponding transmission spectral line schematic diagrames when being the fermi level variation of graphene cross array structure.
Specific implementation mode
Further detailed description is done to the present invention with reference to specific embodiment, but embodiments of the present invention are not limited to
This.
In the description of the invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies to describe, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For the limitation to the invention.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
Term " installation ", " connected ", " connection " shall be understood in a broad sense, and can also be removable for example, it may be being fixedly connected
Connection is unloaded, or is integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the invention.
As shown in Figure 4 and Figure 5, the present embodiment provides it is a kind of based on graphene micro-nano structure array transmission logic switch,
Including detection components 1 and detection conversion equipment, detection conversion equipment includes shaft 3, along the circumferential equally distributed multiple inspections of shaft 3
Unit 4, the connecting rod 7 for coupling detection unit and shaft 3 are surveyed, one end of the connecting rod 7 is connect with shaft 3, connecting rod 7
The other end connect with detection unit 4.Detection components 1 include transmitter unit 5, receiving unit 6；Transmitter unit 5, receiving unit 6
It is correspondingly arranged, connecting rod 7 and the composition detection transition components 2 of detection unit 4, and is arranged between transmitter unit 5, receiving unit 6
Have for detection transition components 2 by gap.When transmitter unit 5, which generates circularly polarized light, to be radiated in detection unit 4, by receiving
The measurement of unit 6 obtains the transmissivity of circularly polarized light, and logical condition sieve is carried out according to the corresponding wavelength difference of transmission paddy of transmission spectral line
Choosing realizes logic switch function to realize logical operation function.Detection unit 4 is converted by shaft 3, often converts one
Secondary to carry out logical operation judgement, detection conversion equipment can realize a variety of logical operations.
When external condition changes, detection transition components 2 rotate, by the detection in transmitter unit 5 and receiving unit 6
Unit 4 replaces with next shelves, then carries out a logical operation by transmission spectral signatures.
Detection conversion equipment as shown in Figure 3, including shaft 3, along the circumferential equally distributed multiple detection units 4 of shaft 3,
One end of connecting rod 7 for coupling detection unit and shaft 3, connecting rod 7 is connect with shaft 3, specifically, the one of connecting rod 7
End is connect with the circumferential side wall of shaft 3, and the other end of connecting rod 7 is connect with detection unit 4.The rotation of shaft 3 can drive detection
Unit 4 rotates, it can be achieved that multiple and different detection units is detected one by one, then can perform after a detection unit detection
A kind of condition, and can reach the purpose of screening different condition.The conversion of detection unit 4 realizes that incident light generates the transmission of different-effect
Spectral line, so as to obtain the corresponding wavelength difference in transmission paddy position of multiple transmission spectral lines, by transmiting the corresponding wave in paddy position
Long difference can carry out logical condition screening, and multigroup detection conversion equipment can then realize multiple logical operations, can be used as logic switch
It is used, and easy to operation, is advantageously implemented the adjusting of dynamic change.
Detection unit 4 includes external stability frame 4-1, upper high transparent glass 4-2, lower high transparent glass 4-3 and graphene cross battle array
Array structure plate 4-4；Graphene cross array structural slab 4-4 is clamped between upper high transparent glass 4-2 and lower high transparent glass 4-3, on
High transparent glass 4-2 and lower high transparent glass 4-3 is fixed by external stability frame 4-1；
The angle α of the single graphene cross of the graphene cross array of graphene cross array structural slab 4-4 be [0 °,
90°]；
The angle α all same of each graphene cross of the graphene cross array of graphene cross array structural slab 4-4,
It is the angle α all same of each graphene cross of the graphene cross array in same detection unit 4, and different detections are single
The angle α of the graphene cross of the graphene cross array of the graphene cross array structural slab 4-4 of member 4 is all different.
As shown in Figure 1, detection unit includes external stability frame 4-1, upper high transparent glass 4-2, lower high transparent glass 4-3 and graphite
Alkene cross array structural slab 4-4；Graphene cross array structural slab 4-4 be located at upper high transparent glass 4-2 and lower high transparent glass 4-3 it
Between, upper high transparent glass 4-2 and lower high transparent glass 4-3 is fixed by external stability frame 4-1；Graphene cross array structural slab 4-4
Graphene cross array in single graphene cross angle all same, and the angle α of single graphene cross be [0 °,
90°]。
As shown in Fig. 2, when the single graphene stauros of graphene cross array of graphene cross array structural slab 4-4
Structure parameter：L1=L2=55nm, d1=d2=40nm does not change, and when only changing angle α, there are two the tools that will produce different-effect
The transmission spectral line for transmiting paddy, be illustrated in figure 6 angle α occur from when becoming 70 °, 60 °, 50 ° respectively for 90 ° in middle infrared band pair
The transmission spectral line answered.Δ λ is this is defined herein as, indicates the corresponding wavelength difference in two transmission paddy positions in transmission spectral line, angle α is not
Together, different transmission spectral lines is generated, then transmits the corresponding wavelength difference of paddy and differs, so not according to the corresponding wavelength difference of transmission paddy
The identical screening for carrying out multiple and different conditions.The transmission spectrum that the variation of L and d generates graphene cross array structural slab 4-4
The wavelength difference of two transmission paddy of line does not influence.
Further, it there are four the settings of detection unit 4, and is symmetrically set as cross.Using corresponding graphene
Four detection units 4 have been made in cross array structural slab 4-4, and each two detection unit 4 is located at criss-cross a line.Each inspection
It surveys in unit 4, the angle α of each graphene cross of the graphene cross array of graphene cross array structural slab 4-4 is phase
With, angle α takes four values, corresponds to different detection units 4 respectively.
The present embodiment also provides a kind of system of the detection unit 4 of the logic switch transmitted based on graphene micro-nano structure array
Preparation Method includes the following steps：
Step 1, graphene oxide is dissolved in solvent, using ito glass (electro-conductive glass) as substrate, is utilized in substrate
Spin coating or the method dipped prepare graphene oxide film；
The specific steps are：
Prepare ito glass as substrate, and put it into cleaning solution and clean, after deionized water ultrasound 15min, with third
Ketone ultrasound 15min, then with alcohol ultrasound 15min nitrogen is put into after finally being dried up with nitrogen gun later with deionized water ultrasound 5min
It is spare in gas holder.
Graphene oxide composite material is prepared using Hummers methods.In 1000ml there-necked flasks, it is added under the conditions of 0 DEG C of ice-water bath
10g graphite composite powders (size is less than 150um) and 230ml, the concentrated sulfuric acid that mass concentration is 98%.Again by 30g potassium permanganate point 10
It is added in there-necked flask in inferior to 1 hour, controlling reaction temperature is within 20 DEG C.After adding, continue to be stirred to react 1 hour.Then
700ml deionized waters are slowly added into three-necked flask, control temperature stirs 2 hours at 38 DEG C or so.Mixture is moved later
Enter in 2000ml beakers, after being diluted reaction solution with 1.5L deionized waters, the H of 25ml is added2O2, reaction solution is by yellowish-brown at this time
Become golden yellow.It filters while hot, is fully washed with the HCl solution of mass concentration 5% and deionized water, carried out in distilled water
Analysis, until without SO in filtrate4 2-(use BaCl2Solution examine), without Cl-(use AgNO3Solution is examined).4000rpm centrifugations are removed few
Not oxidized natural graphite particles are measured, obtained graphite oxide is tacky, brown.In P2O5In the presence of, vacuum is dry at 60 DEG C
Dry 24 hours, that is, obtain graphene oxide.
Graphene oxide is taken to be scattered in deionized water, it is molten to obtain graphene oxide for a concentration of 3mg/ml, ultrasonic disperse
Liquid.It is the ito glass of 170um as substrate to select thickness, and above-mentioned graphene oxide solution is spun under the conditions of 1000rpm
Ito glass substrate surface, spin coating 10 times, to obtain the graphene oxide film that thickness is 50nm in substrate.
Step 2, it dries：The substrate for being coated with graphene oxide film in step 1 is placed on hot plate and is dried, as base
Plate；
Step 3, laser direct-writing is processed：It places a substrate on sample stage, controlling sample stage by software control system moves
It is dynamic, graphene oxide film is processed by laser micro/nano processing system, makes the laser spot of focusing in graphene oxide
The shape of graphene cross array is scanned in film, the graphene oxide in laser scanning site is reduced to graphene, obtains
Graphene cross array structural slab 4-4；
Step 4, the graphene cross array structural slab 4-4 is fixed on upper high transparent glass 4-2 and lower high transparent glass 4-3
Between, then by external stability frame 4-1 fixed the upper high transparent glass 4-2 and lower high transparent glass 4-3, it is single that detection is prepared
Member.
Step 5, the different graphene cross of angle α that step 1 to step 4 prepares graphene cross array structure is repeated
Array structure plate 4-4, can be obtained different detection units.
The logic judgment process of the present embodiment is：As shown in fig. 6, when the graphene of graphene cross array structural slab 4-4
The structural parameters of the single graphene cross of cross array：L1=L2=55nm, d1=d2=40nm does not change, and only changes angle α
When, will produce the tool of different-effect, there are two the transmission spectral lines of transmission paddy, and as shown be angle α generation becomes respectively from 90 °
In the corresponding transmission spectral line of middle infrared band at 70 °, 60 °, 50 °.Graphene cross array structural slab 4-4 is produced in the variation of L and d
The wavelength difference of raw two transmission paddy of transmission spectral line does not influence.
The corresponding wavelength difference in two transmission paddy positions of definition transmission spectral line is Δ λ, when angle α is 50 ° of corresponding wavelength
Poor Δ λ is Δ λ50=3.62 μm, be Δ λ when angle α is 60 ° of corresponding wavelength difference Δ λ60=2.38 μm, when angle α is 70 ° right
The wavelength difference Δ λ answered is Δ λ70=1.50 μm, be Δ λ when angle α is 90 ° of corresponding wavelength difference Δ λ90=0 μm；
As Δ λ >=Δ λ50, execute the first logical operation A；
As Δ λ ∈ (Δ λ50, Δ λ60], execute second of logical operation B；
As Δ λ ∈ (Δ λ60, Δ λ70], execute the third logical operation C；
As Δ λ ∈ (Δ λ70, Δ λ90], execute the 4th kind of logical operation D；
As Δ λ ∈ (Δ λ90, 0], execute the 5th kind of logical operation E.
It will produce different wavelength difference Δ λ when the angle value difference that angle α is, wavelength difference Δ λ has with the increase of angle
The trend of reduction passes through certain the executable corresponding logical operation of above-mentioned judgment principle.
Based on above-mentioned judgment principle, the working method of micro-nano structure array transmission logic switch is：When transmitter unit 5 generates
When circularly polarized light is radiated in detection unit 4, the transmissivity of circularly polarized light is obtained by the measurement of receiving unit 6, according to transmission spectral line
The corresponding wavelength difference of transmission paddy pass through above-mentioned judgment principle and carry out logical condition screening, it is real to realize logical operation function
Existing logic switch function.Receiving unit is connect with processing unit, processing unit can chip or computer in order to control, it is single to receiving
The signal of member is handled.
As shown in fig. 7, when angle α=90 °, when Fermi can increase, it may occur that the transmission paddy position for transmiting spectral line occurs
Blue-shifted phenomenon.Herein, the variation of Fermi's energy takes different value because external condition changes.Fermi level E as shown in the figurefFor
It can perform three kinds of logical operations when 0.4ev, 0.5ev, 0.6ev.
When angle α=70 °, 60 ° or 50 °, the corresponding fermi level E of an angle αfValue 0.4ev, 0.5ev,
When 0.6ev, and it can increase and execute nine kinds of logical operations.
Multiple combinations logical operation can be achieved in the cooperation of two or more sets alternating apparatus in the present embodiment, increases executable patrol
Collect the quantity of operation：Such as when two groups of logic switches are set, carried out as basic logic using transmiting the corresponding wavelength difference in paddy position
Combination, first group of executable logical operation A, B, C or D, second group of executable logical operation A, B, C or D can perform after combination
16 kinds of logical operations of AA, AB, AC, AD, BA, BB, BC, BD, CA, CB, CC, CD, DA, DB, DC or DD, and so on, it can
Combination executes a variety of logical operations, increases the quantity of logical operation.
In addition, one group to transmit the corresponding wavelength difference in paddy position as basic logic, another group is to patrol substantially with fermi level
It collects and is combined, is i.e. executable multiple combinations logical operation again.Such as when two groups of logic switches are arranged, first group to transmit paddy position
Set corresponding wavelength difference be basic logic, second group using wavelength difference and fermi level as basic logic, two groups are combined, first
Executable logical operation A, B, C, D are organized, each detection unit is able to carry out three kinds of logics fortune in second group of four detection units
A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3 are calculated, first group and arbitrarily several groups of second group of progress can be combined
Carry out logical operation.
It can such a variety of logical operation combinations of propulsion row for two groups or more of logic switches.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (2)
1. a kind of logic switch based on the transmission of graphene micro-nano structure array, it is characterised in that：Including detection components (1) and inspection
Conversion equipment is surveyed, detection conversion equipment includes shaft (3), along the circumferential equally distributed multiple detection units (4) of shaft (3), use
In the connecting rod (7) of connection detection unit and shaft (3), one end of the connecting rod (7) is connect with shaft (3), connecting rod (7)
The other end connect with detection unit (4)；
The detection components (1) include transmitter unit (5), receiving unit (6)；The transmitter unit (5), receiving unit (6) are right
Should be arranged, and be provided between transmitter unit (5), receiving unit (6) for detection unit (4) by gap；
The detection unit (4) includes：External stability frame (4-1), upper high transparent glass (4-2), lower high transparent glass (4-3) and graphite
Alkene cross array structural slab (4-4)；The graphene cross array structural slab (4-4) is clamped in upper high transparent glass (4-2) under
Between high transparent glass (4-3), the upper high transparent glass (4-2) is solid by external stability frame (4-1) with lower high transparent glass (4-3)
It is fixed；
The angle α of the single graphene cross of the graphene cross array of the graphene cross array structural slab (4-4) is
[0 °, 90 °]；
The angle α of each graphene cross of the graphene cross array of the graphene cross array structural slab (4-4) is homogeneous
Together, and the graphene cross of the graphene cross array of the graphene cross array structural slab (4-4) of different detection units (4)
Angle α is all different.
2. a kind of logic switch based on the transmission of graphene micro-nano structure array according to claim 1, it is characterised in that：
There are four detection unit (4) settings, and is symmetrically set as cross.
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| CN201810044477.8A CN108306633B (en) | 2018-01-17 | 2018-01-17 | Logic switch based on graphene micro-nano structure array transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044477.8A CN108306633B (en) | 2018-01-17 | 2018-01-17 | Logic switch based on graphene micro-nano structure array transmission |
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| Publication Number | Publication Date |
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| CN108306633A true CN108306633A (en) | 2018-07-20 |
| CN108306633B CN108306633B (en) | 2021-05-25 |
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ID=62865691
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601902A (en) * | 2004-10-21 | 2005-03-30 | 上海交通大学 | Micromechanical capacitance microwave switch based on Nano dielectric film |
| KR20160134370A (en) * | 2015-05-15 | 2016-11-23 | 숙명여자대학교산학협력단 | Controlling method for shape of graphene domain |
| CN107037010A (en) * | 2017-03-30 | 2017-08-11 | 华南师范大学 | A kind of graphene nanometer sheet is to array |
| CN107144909A (en) * | 2017-04-06 | 2017-09-08 | 陕西师范大学 | It is a kind of to realize single layer of gold nanostructured of asymmetric transmission and preparation method thereof |
-
2018
- 2018-01-17 CN CN201810044477.8A patent/CN108306633B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601902A (en) * | 2004-10-21 | 2005-03-30 | 上海交通大学 | Micromechanical capacitance microwave switch based on Nano dielectric film |
| KR20160134370A (en) * | 2015-05-15 | 2016-11-23 | 숙명여자대학교산학협력단 | Controlling method for shape of graphene domain |
| CN107037010A (en) * | 2017-03-30 | 2017-08-11 | 华南师范大学 | A kind of graphene nanometer sheet is to array |
| CN107144909A (en) * | 2017-04-06 | 2017-09-08 | 陕西师范大学 | It is a kind of to realize single layer of gold nanostructured of asymmetric transmission and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| SHAOLIN KE: "Plasmonic absorption enhancement in", 《OPTICS EXPRESS》 * |
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