CN114752168B - Structure color hydrogel film without angle dependence, preparation method and application thereof - Google Patents
Structure color hydrogel film without angle dependence, preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a structural color hydrogel film without angle dependence, a preparation method and application thereof, belonging to the technical field of structural color materials, wherein the preparation method comprises the following steps: (1) Preparation of SiO with good homogeneity 2 Nano-microspheres; (2) Mixing SiO 2 The nano microspheres are uniformly sprayed on the surface of the inorganic glass treated by the Piranha solution to form an amorphous structure template with short-range order and long-range disorder; (3) Will contain pH and CO by a "sandwich" method 2 The precursor solution of the responsive substance is filled into the template prepared in the step (2), and after ultraviolet curing, the template is obtained by a sacrificial template method, wherein the template can resist pH and CO 2 The gas concentration is detected visually and has no angle dependence. The preparation method is simple and high in controllability, and the prepared structural color material is good in optical performance, free of angle dependence and high in potential application value in the field of intelligent food packaging and transportation and other related fields.
Description
Technical Field
The invention relates to the technical field of structural color materials, in particular to a structural color hydrogel film without angle dependence, a preparation method and application thereof.
Background
Carbon dioxide is used as gas for inhibiting aerobic bacteria propagation and fruit and vegetable cell respiration, has a great effect on prolonging the shelf life of food, and is widely applied to a packaging production link. For example, for liquid food, carbon dioxide can be injected before filling to effectively keep the liquid food fresh; for solid food, the freshness date of the food can be prolonged by filling carbon dioxide gas with appropriate concentration. Therefore, it is important to accurately measure the concentration of carbon dioxide in the package and to monitor whether carbon dioxide gas leaks. The carbon dioxide detection is usually performed by infrared spectroscopy, however, infrared spectroscopy detection equipment is expensive and is greatly influenced by humidity and carbon monoxide. The electrochemical detection based on the Severinghaus electrode also realizes commercialization, but the electrode equipment is inconvenient to carry, and the whole detection process is time-consuming; carbon dioxide can also be detected using gas chromatography mass spectrometry equipment and field effect transistors, but the equipment required for these methods is quite expensive. The chemical detection principle of carbon dioxide is based on the color change of a pH indicator, and the cost is low, but the method has the defects of being easily interfered by humidity and being incapable of being recycled.
The determination of the pH value of the solution is the most basic and necessary operation in industrial production and laboratory experiment operation, a pH instrument is generally used for determining the pH value of the solution at present, although the pH instrument can accurately determine the pH value of the solution, the pH instrument is complex in operation, different solutions need to be calibrated before measurement, and the solutions need to be cleaned after measurement. The use of the pH meter also needs a power supply, is inconvenient to carry and causes difficulty for real-time detection.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a structural color hydrogel film without angle dependence, a preparation method and application thereof, wherein the structural color hydrogel film without angle dependence is used for pH and CO 2 And the gas concentration visual response is realized, and the visual color conversion is realized by utilizing the swelling behavior of the hydrogel film after being stimulated by the outside.
The invention adopts a sacrificial template method to obtain the molecular sieve with the pH value and the CO value 2 The gas concentration visualization response is a structural color hydrogel film without angle dependence. The preparation method is simple and highly controllable, the prepared structural color material has good optical performance and no angle dependence, and the pH and CO are realized 2 The visual detection of the gas concentration has potential application value in the field of food intelligent packaging and transportation and other related fields.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a preparation method of a structural color hydrogel film without angle dependence, which comprises the following steps:
(1) Preparation of SiO with good homogeneity by sol-gel method 2 The nanoparticle suspension of (2);
(2) SiO by an air spray gun 2 The nano microsphere suspension is uniformly sprayed on the surface of the inorganic glass treated by the solution, so that an amorphous structure template with short-range order and long-range disorder is formed;
(3) Uniformly mixing a monomer, an initiator, a cross-linking agent, a response substance and absolute ethyl alcohol to prepare a precursor solution;
(4) Filling the precursor solution into the amorphous structure template prepared in the step (2) by a sandwich method, curing under ultraviolet light (preferably an ultraviolet lamp of 365 nm), and removing the template by soaking in hydrofluoric acid solution after curing;
(5) The material prepared in the step (4) is washed by a large amount of ammonia water and then soaked in pure water to obtain the material for treating pH and CO 2 The gas concentration is visually responded, and the structural color hydrogel film is not angle-dependent.
Further, the SiO in the step (1) 2 The grain diameter of the nano-microsphere is 100-380 nm.
Further, siO with good uniformity is prepared in the step (1) 2 The method of the nanoparticle suspension of (2) is as follows:
(1) Adding 2-12 mL of tetrahexyl orthosilicate and 100mL of 50% ethanol solution (solution A) in a conical flask with the volume fraction of 250m, and adding 12-18 mL of ammonia water and 100mL of 50% ethanol solution (solution B) in another conical flask with the volume fraction of 250 m;
(2) Respectively stirring the mixture on a magnetic stirrer at room temperature for 10min, keeping the stirring state of the solution A, slowly adding the solution B into the solution A, and continuously stirring the mixture at room temperature for 3 to 6 hours at 24r/s to obtain SiO 2 A nanoparticle dispersion;
(3) And (3) fully washing the dispersion liquid obtained in the step (2) by using deionized water after centrifugation, and fully dissolving the dispersion liquid in the deionized water to prepare suspension liquid with the mass fraction of 10%.
Further, the inorganic glass in the step (2) is subjected to surface treatment, and the treatment method comprises the following steps:
(1) Preparation of Piranha solution: h is to be 2 SO 4 (volume fraction: 98%) and H 2 O 2 (the volume fraction is 30%) according to the volume ratio of 7;
(2) Uniformly soaking inorganic glass sheets cut into 1cm multiplied by 3.5cm in the Piranha solution prepared in the step (1);
(3) And taking out the inorganic glass sheets after 24h, washing the inorganic glass sheets with distilled water, and storing the inorganic glass sheets in the distilled water.
Further, in the step (3), the monomers are methyl methacrylate and hydroxyethyl methacrylate;
the initiator is benzoin diethyl ether;
the responsive substance is dimethylaminoethyl methacrylate;
the cross-linking agent is ethylene glycol dimethacrylate.
Further, the amount of the initiator used in the step (3) is 0.5 to 5 percent of the monomer.
Further, the amount of the cross-linking agent in the step (3) is 5-20% of the monomer.
Further, the step (3) is mixed under ultrasonic conditions.
Furthermore, the ultrasonic mixing time is 10-30 min, and the power is 100-300W.
Further, the curing time in the step (4) is 60-180 min.
Further, in the step (4), the volume fraction of the hydrofluoric acid solution is 0.5-2%.
The invention also provides the structural color hydrogel film without angle dependence prepared by the preparation method, and when the pH value in the solution is increased gradually between 3 and 11, the color is blue-shifted; in CO 2 When the gas concentration is increased gradually from 0% to 50%, the color is red shifted.
The invention also provides the pH and CO of the angle-independent structural color hydrogel film 2 The application in the visual detection of gas concentration.
Further, the application method comprises the following steps:
(1) Preparing a phosphoric acid buffer solution, a 0.1mol/L hydrochloric acid solution and a 0.1mol/L sodium hydroxide solution, and preparing buffer solutions with different pH values by using the three solutions; completely immersing the prepared structural color hydrogel film without angle dependence into a buffer solution, observing the color change of the structural color hydrogel film, and collecting spectral data through a fiber optic spectrometer;
(2) Putting the structural color hydrogel film into 3mL of pure water with balanced air pressure, and preparing CO with different concentrations by using an air conditioner 2 Gas, extracting CO of different concentrations 2 3mL of gas is slowly pushed into a pure water system in which the angle-independent structural color hydrogel film is placed, the color change of the structural color hydrogel film is observed, and the spectral data is collected through a light spectrometer.
The invention discloses the following technical effects:
1. the preparation method is simple, the cost is low, the controllability of the preparation process is strong, and the product is convenient to carry.
2. The response speed is high, and the visual response of the color can be realized within 10 s.
3. Low angle dependence, and is more favorable for observation and detection.
4. The product can be repeatedly used, and resources are saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a graph showing the morphology of an amorphous template in example 1 of the present invention;
FIG. 2 is a topographical characterization of a structural color hydrogel film without angle dependence in example 2 of the present invention;
FIG. 3 is a color transition and chromatogram of pH response of the structural color hydrogel film in example 1;
FIG. 4 shows structural color hydrogel film CO in example 2 of the present invention 2 And physical color conversion and chromatogram map of gas concentration response.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every intervening value, to the extent any stated value or intervening value in a stated range, and any other stated or intervening value in a stated range, is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The description and examples are intended to be illustrative only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
Example 1
Prepared for pH and CO in this example 2 The angle-independent structural color hydrogel film for the visual detection of gas concentration comprises the following steps:
(1) Preparing an amorphous structure template:
preparation of SiO with particle size of 227nm by sol-gel method 2 The preparation method of the nano microsphere comprises the following specific steps:
a. adding 10mL of tetrahexyl orthosilicate and 100mL of 50% ethanol solution (solution A) in a 250mL conical flask, and adding 16mL of ammonia water and 100mL of 50% ethanol solution (solution B) in another 250mL conical flask;
b. stirring at room temperature on magnetic stirrer for 10min, maintaining the stirring state of solution A, slowly adding solution B into solution A, and stirring at room temperature at 24r/s for 6 hr to obtain solution with particle diameter of 227nmSiO 2 A nanoparticle dispersion;
c. fully washing the dispersion liquid obtained in the step b by using deionized water after centrifugation, and fully dissolving the dispersion liquid in the deionized water to prepare SiO with the particle size of 227nm with the mass fraction of 10 percent 2 And (4) suspending the nano microsphere suspension.
5mL of the above SiO solution was sprayed through an air gun 2 The nano microsphere suspension is uniformly sprayed on a glass sheet hydroxylated by Piranha solution to form an amorphous structure template without angle dependence colors. The specific steps for hydroxylating the glass sheet are as follows:
preparation of piranha solution: h is to be 2 SO 4 (volume fraction: 98%) and H 2 O 2 (volume fraction 30%) are uniformly mixed according to the volume ratio of 7;
b. b, uniformly soaking the glass sheet cut into 1cm multiplied by 3.5cm in the Piranha solution prepared in the step a;
and c, fishing out the glass sheets after 24h, washing the glass sheets by using distilled water, and storing the glass sheets in the distilled water.
(2) Preparing a precursor solution:
taking 50 mu L of methyl methacrylate, 150 mu L of hydroxyethyl methacrylate, 2.5 mu L of ethylene glycol dimethacrylate, 80 mu L of dimethylaminoethyl methacrylate and 480 mu L of benzoin diethyl ether, and carrying out ultrasonic mixing uniformly in 280 mu L of absolute ethyl alcohol to prepare a precursor solution.
(3) Filling, curing and etching the template:
and (3) filling the precursor solution prepared in the step (2) into the amorphous template prepared in the step (1) by a capillary method, and curing for 120min by ultraviolet irradiation. And after the solidification is finished, etching the template by hydrofluoric acid solution with the volume fraction of 2 percent.
The amorphous structure template prepared in the embodiment 1 is taken as an example for explanation, the template of the embodiment is subjected to morphology characterization by using a field emission electron microscope, a sample is thoroughly dried before characterization, then the sample is attached to the surface of the conductive adhesive for gold spraying treatment, and then a test is carried out, the test voltage is 20kV, the magnification is 50000 times, the morphology characterization of the amorphous template is shown in fig. 1, and the smooth surface, uniform size, short-range order and long-range disordered arrangement state of the microspheres in the template can be clearly seen from fig. 1.
Example 2
The preparation prepared in this example for pH and CO 2 The angle-independent structural color hydrogel film for the visual detection of gas concentration comprises the following steps:
(1) Preparing an amorphous structure template:
preparation of SiO with particle size of 257.63nm by sol-gel method 2 The preparation method of the nano microsphere comprises the following specific steps:
(1) Adding 16mL of tetrahexyl orthosilicate and 100mL of 50% ethanol solution (solution A) in a 250mL conical flask, and adding 16mL of ammonia water and 100mL of 50% ethanol solution (solution B) in another 250mL conical flask;
(2) Stirring at room temperature for 10min, adding solution A, slowly adding solution B, and stirring at room temperature for 6 hr at 24r/s to obtain 257.63nm SiO 2 A nanoparticle dispersion.
(3) And (3) fully washing the dispersion liquid obtained in the step (2) by using deionized water after centrifugation, and fully dissolving the dispersion liquid in the deionized water to prepare suspension liquid with the mass fraction of 10%.
5mL of SiO was sprayed through an air gun 2 The suspension of nanospheres was sprayed uniformly onto hydroxylated inorganic glass slides (the hydroxylation process was the same as in example 1) to form an amorphous template without angle-dependent color.
(2) Preparing a precursor solution:
taking 50 mu L of methyl methacrylate, 150 mu L of hydroxyethyl methacrylate, 2.5 mu L of ethylene glycol dimethacrylate and 120 mu L of dimethylaminoethyl methacrylate, and carrying out ultrasonic mixing uniformly in 280 mu L of absolute ethyl alcohol to obtain a precursor solution.
(3) Filling, curing and etching the template:
and (3) filling the precursor solution prepared in the step (2) into the amorphous template prepared in the step (1) by a capillary method, and curing for 120min by ultraviolet irradiation. And after the solidification is finished, etching the template by using a hydrofluoric acid solution with the volume fraction of 2 percent.
Prepared as in example 2 for pH and CO 2 The angle-dependency-free structural color hydrogel film for visual detection of gas concentration is described as an example, a field emission electron microscope is used for carrying out appearance characterization on the hydrogel film of the embodiment, a sample is thoroughly dried before characterization, then the sample is attached to the surface of a conductive adhesive for metal spraying treatment, and then testing is carried out, the testing voltage is 20kV, the magnification is 50000 times, the appearance characterization of the angle-dependency-free structural color hydrogel film of the embodiment is shown in figure 2, the hydrogel film can be clearly seen to be in a three-dimensional through hole structure from figure 2, the arrangement of holes on the surface layer is in a short-range ordered state and a long-range disordered state, and the size of the holes is slightly reduced compared with the size of microspheres of a template.
Taking the structural color hydrogel film prepared in example 1 as an example, buffer solutions with pH values of 4.7, 6.5, 7.7, 9.1 and 10 are prepared by using a phosphoric acid buffer solution, 0.1mol/L hydrochloric acid solution and 0.1mol/L sodium hydroxide, respectively, and the structural color film prepared in example 1 is completely soaked in the buffer solutions with different pH values, so that the structural color hydrogel film has color response within 8s, and the color transition and the spectrogram of the structural color hydrogel film are shown in fig. 3 along with the increase of the pH value. As can be seen from fig. 3, as the pH increases, the color of the structural color film undergoes the process of red, yellow, green, blue, and violet changes.
Taking the structural color hydrogel film obtained in example 2 as an example, the obtained structural color hydrogel film was put into 3mL of pure water with balanced air pressure, and 10%, 20%, 30%, and 40% of CO was prepared by air conditioner 2 Gas, extracting CO of different concentrations 2 3mL of gas is slowly pushed into a pure water system with the hydrogel membrane, and the hydrogel membrane with the structural color shows color response within 10s along with CO 2 The gas concentration is increased, and the color transition and the spectrogram of the gas are shown in figure 4. As can be seen from FIG. 4, with CO 2 The color of the structural color film undergoes the change processes of red, orange, yellow and green when the gas concentration is increased.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The preparation method of the structural color hydrogel film without angle dependence is characterized by comprising the following steps:
(1) Preparation of SiO 2 The suspension of nanospheres of (1);
(2) Mixing SiO 2 The nano microsphere suspension is uniformly sprayed on the surface of inorganic glass to form an amorphous structure template;
(3) Uniformly mixing a monomer, an initiator, a cross-linking agent, a response substance and ethanol to prepare a precursor solution;
(4) Filling the precursor solution into the amorphous structure template prepared in the step (2), curing under ultraviolet light, and soaking in hydrofluoric acid solution after curing;
(5) Washing the material prepared in the step (4) with ammonia water, and soaking the material in water to obtain the non-angle-dependent structural color hydrogel film;
the monomers in the step (3) are methyl methacrylate and hydroxyethyl methacrylate;
the initiator is benzoin diethyl ether;
the response substance is dimethylaminoethyl methacrylate;
the cross-linking agent is ethylene glycol dimethacrylate.
2. The method according to claim 1, wherein the SiO in step (1) 2 The particle size of the nano-microsphere is 100-380 nm.
3. The production method according to claim 1, wherein the inorganic glass is subjected to surface treatment in the step (2) by the following method:
(1) Piranha solutionThe preparation of (1): h is to be 2 SO 4 And H 2 O 2 Uniformly mixing according to the volume ratio of 7;
(2) Uniformly soaking inorganic glass in the Piranha solution prepared in the step (1);
(3) And fishing out the inorganic glass after 24 hours, and washing the inorganic glass.
4. The method of claim 1, wherein the step (3) is carried out under ultrasonic conditions.
5. The method of claim 4, wherein the ultrasonic mixing time is 10-30 min and the power is 100-300W.
6. The method according to claim 1, wherein the curing time in the step (4) is 60 to 180min.
7. An angle-independent, structurally colored hydrogel film prepared by the method of any one of claims 1 to 6, wherein the color is blue-shifted as the pH value in the solution increases in the range of 3 to 11; in CO 2 When the gas concentration is increased gradually from 0% to 50%, the color is red shifted.
8. The angle-independent, structurally colored hydrogel film of claim 7 exhibiting pH and CO shift 2 The application in the visual detection of gas concentration.
9. Use according to claim 8, characterized in that it comprises the following steps:
(1) Preparing a phosphoric acid buffer solution, a 0.1mol/L hydrochloric acid solution and a 0.1mol/L sodium hydroxide solution, and preparing buffer solutions with different pH values by using the three solutions; completely immersing the prepared structural color hydrogel film without angle dependence into a buffer solution, observing the color change of the structural color hydrogel film, and collecting spectral data through a fiber optic spectrometer;
(2) Putting the structural color hydrogel film into 3mL of pure water with balanced air pressure, and passing through an air conditionerPreparing CO with different concentrations 2 Gas, extracting CO of different concentrations 2 3mL of gas is pushed into a pure water system in which the angle-independent structural color hydrogel film is placed, the color change of the structural color hydrogel film is observed, and the spectral data is collected through a light spectrometer.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006068650A (en) * | 2004-09-02 | 2006-03-16 | Asahi Kasei Chemicals Corp | Production method for recording medium, coating liquid using the method, and recording medium |
| JP2009195794A (en) * | 2008-02-20 | 2009-09-03 | Kawamura Inst Of Chem Res | Method of preparing structural color membrane, substrate coated with structural color membrane, and structural color membrane |
| JP2012201755A (en) * | 2011-03-24 | 2012-10-22 | Toyota Central R&D Labs Inc | Method for producing colloidal crystal immobilized with polymer, and colloidal crystal immobilized with polymer |
| CN104725919A (en) * | 2015-03-01 | 2015-06-24 | 江门职业技术学院 | Hydrophobic structural color coating and preparation method thereof |
| JP2017048361A (en) * | 2014-12-25 | 2017-03-09 | 東洋インキＳｃホールディングス株式会社 | Chromatic color member exhibiting structural color |
| CN108535954A (en) * | 2018-02-23 | 2018-09-14 | 中山大学 | A kind of preparation method of the dynamic photon crystal pattern of infiltration control film refractive index |
| CN109928643A (en) * | 2018-11-23 | 2019-06-25 | 陕西科技大学 | A kind of PS@TiO with non-rainbow effect2Schemochrome film and its preparation method and application |
| CN111100319A (en) * | 2019-12-17 | 2020-05-05 | 华南农业大学 | Preparation method and application of amorphous photonic crystal structure color material for visual detection of ethylene gas concentration |
| CN111499886A (en) * | 2020-04-29 | 2020-08-07 | 南京工业大学 | Structural color granular gel and preparation method thereof |
| CN112778465A (en) * | 2020-12-31 | 2021-05-11 | 苏州国纳思新材料科技有限公司 | Preparation method of reversible color-changing photonic crystal hydrogel film |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005012961A1 (en) * | 2003-07-31 | 2005-02-10 | Soken Chemical & Engineering Co., Ltd. | Fluid colloid crystal and process for producing three-dimensional aligned particle mass therefrom |
-
2022
- 2022-03-31 CN CN202210333895.5A patent/CN114752168B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006068650A (en) * | 2004-09-02 | 2006-03-16 | Asahi Kasei Chemicals Corp | Production method for recording medium, coating liquid using the method, and recording medium |
| JP2009195794A (en) * | 2008-02-20 | 2009-09-03 | Kawamura Inst Of Chem Res | Method of preparing structural color membrane, substrate coated with structural color membrane, and structural color membrane |
| JP2012201755A (en) * | 2011-03-24 | 2012-10-22 | Toyota Central R&D Labs Inc | Method for producing colloidal crystal immobilized with polymer, and colloidal crystal immobilized with polymer |
| JP2017048361A (en) * | 2014-12-25 | 2017-03-09 | 東洋インキＳｃホールディングス株式会社 | Chromatic color member exhibiting structural color |
| CN104725919A (en) * | 2015-03-01 | 2015-06-24 | 江门职业技术学院 | Hydrophobic structural color coating and preparation method thereof |
| CN108535954A (en) * | 2018-02-23 | 2018-09-14 | 中山大学 | A kind of preparation method of the dynamic photon crystal pattern of infiltration control film refractive index |
| CN109928643A (en) * | 2018-11-23 | 2019-06-25 | 陕西科技大学 | A kind of PS@TiO with non-rainbow effect2Schemochrome film and its preparation method and application |
| CN111100319A (en) * | 2019-12-17 | 2020-05-05 | 华南农业大学 | Preparation method and application of amorphous photonic crystal structure color material for visual detection of ethylene gas concentration |
| CN111499886A (en) * | 2020-04-29 | 2020-08-07 | 南京工业大学 | Structural color granular gel and preparation method thereof |
| CN112778465A (en) * | 2020-12-31 | 2021-05-11 | 苏州国纳思新材料科技有限公司 | Preparation method of reversible color-changing photonic crystal hydrogel film |
Non-Patent Citations (2)
| Title |
|---|
| Patterned SiO2/Polyurethane Acrylate Inverse Opal Photonic Crystals with High Color Saturation and Tough Mechanical Strength;Yichen Li et al.;《Langmuir》;20191014;第14282-14290页 * |
| 温敏光子晶体结构色调控;乔宇等;《兵工学报》;20200831;第41卷(第8期);第1573-1580页 * |
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