CN107091860B - Moisture sensor and its preparation and use based on the sour cyanines polymer in golden doping side - Google Patents
Moisture sensor and its preparation and use based on the sour cyanines polymer in golden doping side Download PDFInfo
- Publication number
- CN107091860B CN107091860B CN201710365212.3A CN201710365212A CN107091860B CN 107091860 B CN107091860 B CN 107091860B CN 201710365212 A CN201710365212 A CN 201710365212A CN 107091860 B CN107091860 B CN 107091860B
- Authority
- CN
- China
- Prior art keywords
- cyanines polymer
- polymer
- moisture sensor
- golden
- sour cyanines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/124—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one nitrogen atom in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/12—Copolymers
- C08G2261/124—Copolymers alternating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/14—Side-groups
- C08G2261/148—Side-chains having aromatic units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
- C08G2261/322—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed
- C08G2261/3221—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/90—Applications
- C08G2261/94—Applications in sensors, e.g. biosensors
Abstract
The invention discloses the moisture sensor and its preparation method and application based on the sour cyanines polymer in golden doping side, Coating Materials that the moisture sensor based on gold doping side acid cyanines polymer includes interdigital electrode and is overlying in interdigital electrode；The Coating Materials is the sour cyanines polymer in golden doping side.The impedance variations range of moisture sensor of the invention under 100 Hz frequencies is maximum, is first placed in device in the humidity atmosphere that relative humidity (RH) is 11%, measuring its impedance is about 5 × 108Ω is subsequently placed in 95% humidity atmosphere, and measuring its impedance is about 2 × 103Ω illustrates that the recovery of device is excellent.The present invention is also tested for the performance of device adsorption desorption, and test it has excellent adsorption desorption ability in 11% ~ 95% humidity atmosphere.
Description
Technical field
The invention belongs to organic semiconductor device technical fields, and in particular to the wet sensitive based on the sour cyanines polymer in golden doping side
Sensor and its preparation method and application.
Background technique
With the development of science and technology, requirement of the various fields to ambient humidity is harsher, column such as aerospace industry, agricultural, essence
Close mechanical and laboratory requires to carry out effective monitoring to ambient humidity.The core of humidity sensor is wet sensitive device, it is
Using the direct adsorbed water molecule of the suction-operated of humidity-sensitive material, its surface conductance or volume, dielectric constant etc. is made to feel wet feature
Amount changes, and by the detection and conversion of varying circuit, exports electric signal and detects humidity.It can only operate in low humidity at present
LiCl humidity sensor under environment is eliminated substantially, and the main study subject of humidity-sensitive material is inorganic semiconductor and organic high score
Sub- material.By taking inorganic semiconductor is the ceramic humidity sensors of humidity-sensitive material as an example, have high temperature resistant, chemical property it is good,
The disadvantages of the advantages that price is low and the service life is long, however, there are also consistency and poor stability, and this kind of sensor be easy by
To pollution, need to clean.Gold nanoparticle is current one of hot research topic simultaneously, with its unique electricity, optical
Matter and bio-intermiscibility receive the extensive concern of the related fieldss such as physics, chemistry and life science.Therefore current in order to meet
The requirement of market preparation inexpensive to sensor, practical, easy etc. needs to develop a kind of novel moisture sensor.
Summary of the invention
For above situation, the present invention is using a kind of in sour cyanines polymer surfaces doping gold nanoparticle (PPPS-Au) in side
To prepare moisture sensor, and changed by the complex impedance of the observation sensor under different humidity to detect the sky of different humidity
Gas.The complex impedance of moisture sensor of the invention under 100 Hz frequencies is maximum, and it is 11% that device, which is first placed in relative humidity (RH),
Humidity atmosphere in, measuring its impedance is about 5 × 108 Ω is subsequently placed in 95% humidity atmosphere, measures its impedance about
It is 2 × 103 Ω illustrates that the recovery of device is excellent.The present invention is also tested for the performance of device adsorption desorption, test its 11% ~
There is excellent adsorption desorption ability in 95% humidity atmosphere.
The invention discloses a kind of moisture sensor based on golden doping side acid cyanines polymer, including interdigital electrode and cover
In the Coating Materials in interdigital electrode；The Coating Materials is the sour cyanines polymer in golden doping side；The change of side's acid cyanines polymer
It is as follows to learn structural formula:
Wherein, n is 40 ~ 50.
The moisture sensor of the sour cyanines polymer (PPPS-Au) in side based on doping gold nanoparticle of the invention includes interdigital
Electrode and Coating Materials further include substrate etc.；The Coating Materials is above-mentioned PPPS-Au, is brushed in the interdigital electrode
On, and it is with a thickness of 100 ~ 400 μm.
Preferably, in the above-mentioned moisture sensor based on PPPS-Au, the interdigital electrode is with the oxygen with a thickness of 1 ~ 2 mm
Change aluminium (Al2O3) it is substrate, it is provided with silver-palladium (Ag-Pd) alloy electrode with a thickness of 100 ~ 200nm.
Preferably, in the above-mentioned moisture sensor based on PPPS-Au, the interdigital width of the interdigital electrode is 200 ~
300 μm, interdigital spacing is 100 ~ 200 μm.
The invention also discloses a kind of preparation methods of moisture sensor based on the sour cyanines polymer in golden doping side, including such as
Lower step:
(1) substrate is cleaned, and interdigital electrode is fixed on the substrate；
(2) according to the sour cyanines polymer in gold doping side: solvent is that the weight ratio of 4:1 ~ 2 dissolves the sour cyanines polymer in golden doping side
In solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side；
(3) the sour cyanines polymer solution in golden doping side is brushed in interdigital electrode, is placed at room temperature, after removing solvent,
It is 0.5 ~ 2 hour dry in 50 ~ 80 DEG C, obtain the moisture sensor based on the sour cyanines polymer in golden doping side.
The invention also discloses a kind of preparation method of moisture sensor electrode based on the sour cyanines polymer in golden doping side, packets
Following steps are included, according to the sour cyanines polymer in gold doping side: solvent is that the weight ratio of 4:1 ~ 2 dissolves the sour cyanines polymer in golden doping side
In solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side；The sour cyanines polymer solution in golden doping side is brushed
In interdigital electrode, place at room temperature, it is 0.5 ~ 2 hour dry in 50 ~ 80 DEG C after removing solvent, it obtains based on golden doping side
The moisture sensor electrode of sour cyanines polymer.
Preferably, in the above preparation method, substrate described in step (1) is selected from glass substrate, PE substrate, iron plate substrate
In any one, preferred glass substrate.
Preferably, in the above preparation method, it fixes by way of adhered by double sided plaster and completes described in step (1).
Preferably, in the above preparation method, solvent described in step (2) is in ethyl alcohol, methylene chloride, ethyl acetate
Any one, preferred alcohol.
Preferably, in the above preparation method, brushing pen was brushed to complete described in step (3).
Preferably, in the above preparation method, the parameter setting of brushing described in step (3) is as follows: brushing repeatedly, every time
Brushing terminates the map brushing again after dry tack free.
Preferably, in the above preparation method, temperature dry described in step (3) is 60 DEG C, and the time is 1 hour.
Preferably, in the above preparation method, drying described in step (3) is completed by vacuum drying oven.
The preparation method of the sour cyanines polymer in gold doping side of the present invention, includes the following steps, with N- phenylpyrrole and side
Acid is raw material, in a solvent, heating reaction；After reaction, solution of gold nanoparticles is added dropwise, then reacts, after reaction,
It is down to room temperature to temperature, product is filtered and is washed with ethyl acetate, it is dry, obtain the sour cyanines polymer P PPS-Au in golden doping side.
Preferably, in the above preparation method, the additional amount of the solution of gold nanoparticles is 2 milliliters of every gram of side's acid；Institute
The optical concentration for stating solution of gold nanoparticles is 1OD.
The invention also discloses the sour cyanines polymer in golden doping side, and preparation method includes the following steps, with N- phenylpyrrole
It is raw material with side's acid, in a solvent, heating reaction；After reaction, solution of gold nanoparticles is added dropwise, then reacts, reaction knot
Shu Hou is down to room temperature to temperature, and product is filtered and is washed with ethyl acetate, dry, obtains the sour cyanines polymer in golden doping side
PPPS-Au。
The invention also discloses the preparation methods of the sour cyanines polymer in side, include the following steps, with N- phenylpyrrole and side's acid
For raw material, in a solvent, heating reaction；After reaction, it is down to room temperature to temperature, product is filtered and is washed with ethyl acetate
It washs, dry, the side of obtaining acid cyanines polymer P PPS.
The invention also discloses the preparation methods of the sour cyanines polymer solution in golden doping side, include the following steps, with N- phenyl
Pyrroles and side's acid are raw material, in reaction dissolvent, heating reaction；After reaction, solution of gold nanoparticles is added dropwise, then instead
It answers, after reaction, is down to room temperature to temperature, product is filtered and washed with ethyl acetate, it is dry, obtain the sour cyanines in golden doping side
Polymer；According to the sour cyanines polymer in golden doping side: dispersion solvent=4:1 ~ 2 weight ratio dissolves the sour cyanines polymer in golden doping side
In dispersion solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side.
The invention also discloses the sour cyanines polymer solutions in golden doping side, and preparation method includes the following steps, with N- phenyl
Pyrroles and side's acid are raw material, in reaction dissolvent, heating reaction；After reaction, solution of gold nanoparticles is added dropwise, then instead
It answers, after reaction, is down to room temperature to temperature, product is filtered and washed with ethyl acetate, it is dry, obtain the sour cyanines in golden doping side
Polymer；According to the sour cyanines polymer in golden doping side: dispersion solvent=4:1 ~ 2 weight ratio dissolves the sour cyanines polymer in golden doping side
In dispersion solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side.
Any one of the dispersion solvent in ethyl alcohol, methylene chloride, ethyl acetate, preferred alcohol.
The invention also discloses the sour cyanines polymer in side, chemical structural formula is as follows:
Wherein, n is 40 ~ 50.
The invention discloses above-mentioned side's acid cyanines polymer to prepare answering in moisture sensor or moisture sensor electrode
With.
The invention discloses the above-mentioned golden sour cyanines polymer in doping side to prepare moisture sensor or moisture sensor electrode
In application.
The invention discloses the above-mentioned moisture sensors based on the sour cyanines polymer in golden doping side in air humidity detection
Using.
Compared with prior art, using above-mentioned technical proposal the present invention has the advantage that
(1) device disclosed by the invention is prepared convenient, easy to operate；
(2) the response device time disclosed by the invention is short, is higher than common metal oxide for humidity variation response；
(3) the ringing back time disclosed by the invention is short, and device performance is stablized；
(4) for device disclosed by the invention under high humidity environment, device humidity hysteresis is strong.
Detailed description of the invention
Fig. 1 is the pictorial diagram of the moisture sensor based on PPPS-Au；
Fig. 2 is the SEM figure for the sour cyanines polymer (PPPS-Au) in side that embodiment one adulterates gold nanoparticle；
Fig. 3 is that the moisture sensor of the sour cyanines polymer (PPPS) in side of the embodiment one based on 0 mL gold nanoparticle of doping exists
To the impedance response test effect figure of humidity under different frequency；
Fig. 4 is that embodiment one is based on 0.5 mL(PPPS-0.5 of doping) wet sensitive of the sour cyanines polymer in side of gold nanoparticle passes
Sensor is at different frequencies to the impedance response test effect figure of humidity；
Fig. 5 is that embodiment one is based on 1 mL(PPPS-1 of doping) moisture sensor of the sour cyanines polymer in side of gold nanoparticle
At different frequencies to the impedance response test effect figure of humidity；
Fig. 6 is the moisture sensor for the sour cyanines polymer in side that embodiment one is based on doping 2 mL (PPPS-2) gold nanoparticle
At different frequencies to the impedance response test effect figure of humidity；
Fig. 7 is that the moisture sensor of the sour cyanines polymer (PPPS) in side of the embodiment one based on 0 mL gold nanoparticle of doping exists
Adsorption desorption curve graph under different humidity；
Fig. 8 is that the wet sensitive of the sour cyanines polymer (PPPS-0.5) in side of the embodiment one based on 0.5 mL gold nanoparticle of doping passes
Adsorption desorption curve graph of the sensor under different humidity；
Fig. 9 is the moisture sensor of the sour cyanines polymer (PPPS-1) in side of the embodiment one based on 1 mL gold nanoparticle of doping
Adsorption desorption curve graph under different humidity；
Figure 10 is the wet sensitive sensing of the sour cyanines polymer (PPPS-2) in side of the embodiment one based on 2 mL gold nanoparticles of doping
Adsorption desorption curve graph of the device under different humidity；
Figure 11 is that embodiment one is existed based on the moisture sensor of the 0 gold nanoparticle side mL acid cyanines polymer (PPPS) of doping
Recovery test effect figure under relative humidity between 11% and 95%；
Figure 12 is the moisture sensor that embodiment one is based on the 1 gold nanoparticle side mL acid cyanines polymer (PPPS-1) of doping
Recovery test effect figure under relative humidity between 11% and 95%；
Figure 13 is the moisture sensor that embodiment one is based on the 1 gold nanoparticle side mL acid cyanines polymer (PPPS-1) of doping
Response time effect picture under relative humidity between 11% and 95%；
Figure 14 is the moisture sensor that embodiment one is based on the 1 gold nanoparticle side mL acid cyanines polymer (PPPS-1) of doping
Turnaround time effect picture under relative humidity between 11% and 95%；
Figure 15 is the infrared spectrum of PPPS-Au；
Figure 16 is PPPS-Au XRD diffraction spectrogram.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to further illustrate the technical scheme of the present invention.Unless otherwise indicated,
Reagent used in the following example, material, instrument etc. can be obtained by commercial means, and the present invention is based on golden doping side's acid
The pictorial diagram of the moisture sensor of cyanines polymer is referring to Fig. 1.
The synthesis of embodiment 1:PPPS-Au and the preparation of sensor
(1) synthesis of PPPS-Au
It weighs N- phenylpyrrole (1.26,8.76mmol.) and side is sour (0.50g, 4.38mmol), be placed in n-butanol
In (35mL), 130 DEG C are heated and refluxed for 18 h of reaction, after fully reacting, reaction temperature are made to drop to 90 DEG C, and concentration is added dropwise and is
1OD(optical concentration) the other doping 0mL of gold nanoparticle 1mL(, the sour cyanines polymer system in the side of the gold nanoparticle of 0.5mL, 2mL
Standby mode and the above process are no different), and the reaction was continued at such a temperature that 1h is down to room temperature to temperature after reaction, by product
Filter and washed 3 times with ethyl acetate, filtered, vacuum drying obtains PPPS-Au(0.96g, 55 % of yield), microstructure
Schematic diagram is as shown in Fig. 2, a, b, c, d are respectively the sour cyanines polymerization in side for adulterating 0mL, 1mL, 0.5mL, 2mL gold nanoparticle in figure
Object.
(2) preparation of sensor
(a) glass substrate is cleaned, and interdigital electrode is bonded on substrate by double-sided adhesive, the interdigital electrode is with aluminium oxide
(1 mm) is substrate, is provided with silver palladium alloy electrode (100nm), and interdigital width is 300 μm, and interdigital spacing is 200 μm；
(b) PPPS-Au(4 mg) is dissolved in ethyl alcohol (2 g), so that it is uniformly dispersed, the ethyl alcohol for obtaining PPPS-Au is molten
Liquid；
(c) ethanol solution of PPPS-Au is brushed in interdigital electrode, is brushed 20 times, it is dry to surface to brush end every time
It brushes after dry, places at room temperature again, after volatilizing ethyl alcohol, be placed in vacuum drying oven in 60 DEG C of dry 1 h, be based on
The moisture sensor of PPPS-Au, structural schematic diagram is as shown in figure 4, wherein PPPS-Au coating film thickness is 400 μm.
Moisture sensor based on PPPS-Au at different frequencies measures the impedance response of humidity
Device is placed in test machine, frequency is adjusted within the scope of 10Hz ~ 100KHz, and test device 11%, 33%,
54%, the impedance variations in the different relative humidity atmosphere such as 75%, 85%, 95%, result is as shown in figures 3 to 6.
It can be seen that the humidity atmosphere for various concentration from Fig. 3-Fig. 6, based on the moisture sensor of PPPS-Au not
There are different impedance variations under the conditions of same frequency, it can be seen that device linearity relationship is best in 100Hz, response is strong
It spends most strong.And when gold nanoparticle doping is 1mL, linear relationship is best.Also it is thus determined that gold nanoparticle
The optimal conditions of doping is used for following embodiment.
Adsorption desorption performance measurement based on PPPS-Au moisture sensor
Control frequency is 100Hz, moisture sensor is placed in different relative humidity atmosphere, tests the adsorption desorption of device
Performance.Obtained result is as shown in Fig. 7-Figure 10, there it can be seen that the adsorption desorption of device is functional.
From Fig. 7-Figure 10 it can be found that the stability of device is obviously improved after adulterating gold nanoparticle.And it is maximum
Hysteresis is 0.2% in relative humidity 33% (gold nanoparticle doping is 1mL).
Recovery measurement under relative humidity based on the moisture sensor of PPPS-Au between 11% and 95%
Under conditions of frequency is 100Hz, device is placed in first under 11% relative humidities, after impedance stabilization, then
Device is placed under 95% relative humidities, equally after impedance stabilization, device is again placed in 11% relative humidity item
Under part, the above circulation is repeated.As a result as illustrated in figs. 11-14, the doping of gold nanoparticle is sour to side is based on as we can see from the figure
The response time of the humidity sensor of cyanines polymer；It is obviously improved that (response time is optimized to from 4 s less than 1 turnaround time
s；Turnaround time is optimized to less than 4 s) from 900 s, it can be seen that, not only stability is good for device, but also the response time is short, replys
Time is short.
Appraising datum is as follows:
Figure 15 is the infrared spectrum of PPPS-Au；Figure 16 is PPPS-Au diffraction spectrogram；It can see from infrared spectrogram
Cumulated double bond peak in the hydroxyl association peak and N- phenylpyrrole ring of raw material side's acid is all vanished from sight, and product carbonyl peak phase
To obvious, it can be seen that polymer is successfully synthesized.The sour cyanines polymer in side for adulterating gold nanoparticle is surveyed in X-ray diffraction
In examination, golden peak is obviously displayed, it was demonstrated that gold nanoparticle is effectively in the sour cyanines polymer in the side of being entrained in.
The sour cyanines polymer in side of gold nanoparticle is adulterated in X-ray diffraction (XRD) test, golden peak is obviously shown
Come, it was demonstrated that gold nanoparticle is effectively in the sour cyanines polymer in the side of being entrained in.Furthermore we are from XRD it can be seen that when the gold adulterated
When the amount of nanoparticle is 1mL, the orientation of gold nanoparticle is more prominent.
Embodiment 2
The preparation of sensor:
(a) glass substrate is cleaned, and interdigital electrode is bonded on substrate by double-sided adhesive, the interdigital electrode is with aluminium oxide
(1 mm) is substrate, is provided with silver palladium alloy electrode (100nm), and interdigital width is 300 μm, and interdigital spacing is 200 μm；
(b) PPPS-Au(4mg) is dissolved in ethyl alcohol (2 g), so that it is uniformly dispersed, the ethyl alcohol for obtaining PPPS-Au is molten
Liquid；
(c) ethanol solution of PPPS-Au is brushed in interdigital electrode, is brushed 10 times, it is dry to surface to brush end every time
It brushes after dry, places at room temperature again, after volatilizing ethyl alcohol, be placed in vacuum drying oven in 80 DEG C of dry 1 h, be based on
The moisture sensor of PPPS-Au, wherein PPPS-Au coating film thickness is 100 μm.
Not only stability is good for device, but also the response time is short, and turnaround time is short, and (response time is optimized to from 4 s less than 1
s；Turnaround time is optimized to less than 4 s) from 900 s, and adsorption desorption is functional.
Embodiment 3
The preparation of sensor:
(a) glass substrate is cleaned, and interdigital electrode is bonded on substrate by double-sided adhesive, the interdigital electrode is with aluminium oxide
(2 mm) is substrate, is provided with silver palladium alloy electrode (100 nm), and interdigital width is 300 μm, and interdigital spacing is 200 μ
m；
(b) PPPS-Au(4 mg) is dissolved in ethyl alcohol (1 g), so that it is uniformly dispersed, the ethyl alcohol for obtaining PPPS-Au is molten
Liquid；
(c) ethanol solution of PPPS-Au is brushed in interdigital electrode, is brushed 15 times, it is dry to surface to brush end every time
It brushes after dry, places at room temperature again, after volatilizing ethyl alcohol, be placed in vacuum drying oven in 60 DEG C of dry 1 h, be based on
The moisture sensor of PPPS-Au, wherein PPPS-Au coating film thickness is 200 μm.
Not only stability is good for device, but also the response time is short, and turnaround time is short, and (response time is optimized to from 4 s less than 1
s；Turnaround time is optimized to less than 4 s) from 900 s, and adsorption desorption is functional.
In conclusion the present invention is proved by the way that a kind of PPPS-Au is fabricated to the simple resistance-type thin film sensor of structure
The doping of gold nanoparticle limits the optimum doping amount of gold nanoparticle to the positive influence of PPPS humidity sensor performance,
The air realized for different humidity detect, and response time fast turnaround time is fast, of the invention based on Jenner
The moisture sensor of the sour cyanines polymer in the side of rice corpuscles doping solves the problems, such as to lack organic polymer moisture sensor at present.
Claims (13)
1. a kind of moisture sensor based on the sour cyanines polymer in golden doping side, which is characterized in that described based on the sour cyanines in golden doping side
The moisture sensor of polymer includes interdigital electrode and the Coating Materials that is overlying in interdigital electrode；The Coating Materials is mixed for gold
Miscellaneous side's acid cyanines polymer；The chemical structural formula of side's acid cyanines polymer is as follows:
Wherein, n is 40~50.
2. the moisture sensor according to claim 1 based on the sour cyanines polymer in golden doping side, which is characterized in that described to be based on
The moisture sensor of the golden sour cyanines polymer in doping side further includes substrate；The Coating Materials with a thickness of 100~400 μm；It is described
Interdigital electrode is provided with using the aluminium oxide with a thickness of 1~2 mm as substrate with a thickness of the silver-palladium alloy of 100~200 nm
Electrode；The interdigital width of the interdigital electrode is 200~300 μm, and interdigital spacing is 100~200 μm.
3. a kind of preparation method of the moisture sensor based on the sour cyanines polymer in golden doping side, which is characterized in that including walking as follows
It is rapid:
(1) substrate is cleaned, and interdigital electrode is fixed on the substrate；
(2) according to the sour cyanines polymer in golden doping side: solvent is that the sour cyanines polymer in golden doping side is dissolved in by the weight ratio of 4:1~2
In solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side；
(3) the sour cyanines polymer solution in golden doping side is brushed in interdigital electrode, is placed at room temperature, after removing solvent, in 50
~80 DEG C drying 0.5~2 hour, obtain the moisture sensor based on golden doping side acid cyanines polymer；
The chemical structural formula of side's acid cyanines polymer is as follows:
Wherein, n is 40~50.
4. preparation method according to claim 3, which is characterized in that the solvent is selected from ethyl alcohol, methylene chloride, acetic acid second
Any one in ester；Described brush is completed by brushing pen；The temperature of the drying is 60 DEG C, and the time is 1 hour；It is described dry
It is dry to be completed by vacuum drying oven.
5. a kind of preparation method of the moisture sensor electrode based on the sour cyanines polymer in golden doping side, which is characterized in that including such as
Lower step, according to the sour cyanines polymer in golden doping side: solvent is that the sour cyanines polymer in golden doping side is dissolved in by the weight ratio of 4:1~2
In solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side；The sour cyanines polymer solution in golden doping side is brushed
In interdigital electrode, place at room temperature, it is 0.5~2 hour dry in 50~80 DEG C after removing solvent, it obtains based on golden doping side
The moisture sensor electrode of sour cyanines polymer；The chemical structural formula of side's acid cyanines polymer is as follows:
Wherein, n is 40~50.
6. preparation method according to claim 5, which is characterized in that the solvent is selected from ethyl alcohol, methylene chloride, acetic acid second
Any one in ester；Described brush is completed by brushing pen；The temperature of the drying is 60 DEG C, and the time is 1 hour；It is described dry
It is dry to be completed by vacuum drying oven.
7. a kind of preparation method of gold doping side acid cyanines polymer, which is characterized in that include the following steps, with N- phenylpyrrole with
Side's acid is raw material, in a solvent, heating reaction；After reaction, solution of gold nanoparticles is added dropwise, then reacts, reaction terminates
Afterwards, it is down to room temperature to temperature, product is filtered and is washed with ethyl acetate, it is dry, obtain the sour cyanines polymer in golden doping side.
8. a kind of preparation method of side's acid cyanines polymer, which is characterized in that include the following steps, be with N- phenylpyrrole and square acid
Raw material, in a solvent, heating reaction；After reaction, it is down to room temperature to temperature, product is filtered and is washed with ethyl acetate,
It is dry, the side of obtaining acid cyanines polymer P PPS.
9. a kind of preparation method of the sour cyanines polymer solution in gold doping side, which is characterized in that include the following steps, with N- phenyl pyrazoline
It coughs up and side's acid is raw material, in reaction dissolvent, heating reaction；After reaction, solution of gold nanoparticles is added dropwise, then reacts,
After reaction, it is down to room temperature to temperature, product is filtered and is washed with ethyl acetate, it is dry, it is poly- to obtain the sour cyanines in golden doping side
Close object；According to the sour cyanines polymer in golden doping side: the sour cyanines polymer in golden doping side is dissolved in by dispersion solvent=4:1~2 weight ratio
In dispersion solvent, it is made to be uniformly dispersed, obtains the sour cyanines polymer solution in golden doping side.
10. a kind of side's acid cyanines polymer, chemical structural formula are as follows:
Wherein, n is 40 ~ 50.
11. side's acid cyanines polymer described in claim 10 is preparing the application in moisture sensor or moisture sensor electrode.
12. the sour cyanines polymer in golden doping side of the preparation method preparation of the acid cyanines polymer of gold doping side described in claim 7 is being made
Application in standby moisture sensor or moisture sensor electrode.
13. application of the moisture sensor in air humidity detection based on the sour cyanines polymer in golden doping side described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365212.3A CN107091860B (en) | 2017-05-22 | 2017-05-22 | Moisture sensor and its preparation and use based on the sour cyanines polymer in golden doping side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365212.3A CN107091860B (en) | 2017-05-22 | 2017-05-22 | Moisture sensor and its preparation and use based on the sour cyanines polymer in golden doping side |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091860A CN107091860A (en) | 2017-08-25 |
| CN107091860B true CN107091860B (en) | 2019-06-25 |
Family
ID=59640304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365212.3A Active CN107091860B (en) | 2017-05-22 | 2017-05-22 | Moisture sensor and its preparation and use based on the sour cyanines polymer in golden doping side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091860B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285175B (en) * | 2018-02-13 | 2020-06-23 | 黑龙江大学 | Application of quasi-cubic iron sesquioxide nano cage with multi-stage structure |
| CN108776157B (en) * | 2018-06-20 | 2020-09-08 | 苏州大学 | Nitrogen dioxide sensor based on squaramide polymer and preparation method and application thereof |
| CN110702747B (en) * | 2019-10-28 | 2021-12-10 | 苏州大学 | Diaminoanthraquinone squaramide polymer, humidity-sensitive sensor based on squaramide polymer and preparation method of humidity-sensitive sensor |
| CN110702746B (en) * | 2019-10-28 | 2021-12-10 | 苏州大学 | Condensed ring squaramide polymer, humidity-sensitive sensor based on condensed ring squaramide polymer and preparation method of humidity-sensitive sensor |
| CN115096960B (en) * | 2022-06-24 | 2023-08-11 | 山东大学 | High-selectivity high-sensitivity iodine vapor electrochemical impedance sensor and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792649A (en) * | 1992-11-25 | 1998-08-11 | Biosource Technologies, Inc. | Method for making stable, extracellular tyrosinase and synthesis of polyphenolic polymers therefrom |
| CN102382284A (en) * | 2011-06-28 | 2012-03-21 | 四川大学 | Poly-squaric acid conjugated polymer preparation method and application thereof |
| CN102786459A (en) * | 2012-08-16 | 2012-11-21 | 常州大学 | Squarylium type chemical sensor for colorimetric identification of copper ion and preparation method thereof |
| CN102816412A (en) * | 2012-08-25 | 2012-12-12 | 西华师范大学 | Poly-squarylium cyanine near-infrared absorbing material and synthesis method thereof |
| CN105928995A (en) * | 2016-05-31 | 2016-09-07 | 苏州大学 | Moisture-sensitive sensor based on squaraine polymer and preparation method and application of moisture-sensitive sensor |
-
2017
- 2017-05-22 CN CN201710365212.3A patent/CN107091860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792649A (en) * | 1992-11-25 | 1998-08-11 | Biosource Technologies, Inc. | Method for making stable, extracellular tyrosinase and synthesis of polyphenolic polymers therefrom |
| CN102382284A (en) * | 2011-06-28 | 2012-03-21 | 四川大学 | Poly-squaric acid conjugated polymer preparation method and application thereof |
| CN102786459A (en) * | 2012-08-16 | 2012-11-21 | 常州大学 | Squarylium type chemical sensor for colorimetric identification of copper ion and preparation method thereof |
| CN102816412A (en) * | 2012-08-25 | 2012-12-12 | 西华师范大学 | Poly-squarylium cyanine near-infrared absorbing material and synthesis method thereof |
| CN105928995A (en) * | 2016-05-31 | 2016-09-07 | 苏州大学 | Moisture-sensitive sensor based on squaraine polymer and preparation method and application of moisture-sensitive sensor |
Non-Patent Citations (4)
| Title |
|---|
| Humidity sensors based on polymer thin films;Y. Sakai, et al.;《Sensors and Actuators B》;19981007;第85-90页 * |
| Ion in Conjugation： Squaraine as an Ultrasensitive Ammonia Aensor Material;Xin XIa et al;《Small》;20161018;第1602190/1-5页 * |
| Preparation of Sub-micrometer Silica Shells Using Poly(1-methylpyrrol-2-ylsquaraine);Daniel E. Lynch, et al.;《Langmuir》;20050611;第6572-6575页 * |
| 高分子湿度传感器的研制;陈翠萍等;《仪表技术与传感器》;20051025;第4-8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107091860A (en) | 2017-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107091860B (en) | Moisture sensor and its preparation and use based on the sour cyanines polymer in golden doping side | |
| Xie et al. | Highly sensitive humidity sensor based on quartz crystal microbalance coated with ZnO colloid spheres | |
| Shahdeo et al. | Graphene based sensors | |
| JP5932806B2 (en) | SENSOR ELEMENT, MANUFACTURING METHOD THEREOF, AND SENSOR DEVICE INCLUDING THE SAME | |
| CN105928995B (en) | A kind of moisture sensor based on the sour cyanines polymer in side and its production and use | |
| CN102262125B (en) | Electrochemical immune sensor for detecting diethylstilbestrol and preparation method and application of sensor | |
| CN102944598A (en) | Preparation method and application of cell based sensor based on electrochemical reduction graphite oxide/gold nanoparticle composite membrane | |
| CN104040347A (en) | A sensor composition for acetone detection in breath | |
| CN108387618B (en) | Preparation method of ammonia gas sensor based on squaric acid derivative | |
| CN106770485B (en) | It is a kind of conduction kernel sensitive layer and molecular sieve remove wet layer sensor and preparation method | |
| CN107064277A (en) | A kind of preparation method and application of electrochemical sensor | |
| CN109211989B (en) | Electrochemical aptamer sensor for detecting atrazine and preparation and detection methods thereof | |
| CN110128649A (en) | It can be used for the sour cyanines polymer sensor in side and its application of low concentration nitrogen dioxide | |
| Ibupoto et al. | Selective zinc ion detection by functionalised ZnO nanorods with ionophore | |
| Su et al. | Electrical and humidity-sensing properties of flexible metal-organic framework M050 (Mg) and KOH/M050 and AuNPs/M050 composites films | |
| CN107064242A (en) | Molybdenum disulfide dopen Nano silver particles are combined humidity sensor and preparation method thereof | |
| CN102914576B (en) | Preparation method of redox probe for marking CRP (C-Reactive Protein) impedance immunosensor | |
| CN108535333A (en) | Ammonia/nitric oxide bicomponent sensor and its preparation method and application based on the sour cyanines polymer in side | |
| CN110927001A (en) | Humidity sensitive element and preparation process thereof | |
| Minh et al. | Preparation and gas sensing properties of nanocomposite polymers on micro-Interdigitated electrodes for detection of volatile organic compounds at room temperature | |
| CN110849941B (en) | Preparation method of resistance-type humidity sensing device based on loose carbon structure and hydrophilic polymer material composition | |
| CN110702747B (en) | Diaminoanthraquinone squaramide polymer, humidity-sensitive sensor based on squaramide polymer and preparation method of humidity-sensitive sensor | |
| CN108287148A (en) | A kind of mercury ion sensor, preparation method and application | |
| CN107543924A (en) | Biology sensor detection myeloperoxidase based on copper palladium platinum mesh nanometer material | |
| CN102901822A (en) | Method for manufacturing polymer self-assembly ultra-microporous membrane immunity combined sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |