45 results about "Uv spectra" patented technology

The invention provides a pulse laser deposition process online monitoring device and method, and relates to the technical field of material preparation and process monitoring, the pulse laser deposition process online monitoring device comprises a growth cavity, a substrate supporting mechanism and a target material supporting mechanism which are arranged in the growth cavity, a pulse laser for ablating a target material, and a spectrum acquisition unit, the optical signal acquisition module is used for acquiring an optical signal radiated by plasma plume generated by ablating a target material by the pulse laser; and the spectrum analysis unit is connected with the spectrum acquisition unit and is used for receiving the light signals acquired by the spectrum acquisition unit and analyzing and processing the light signals so as to obtain the state information of the plasma plume. According to the online monitoring scheme, the extreme ultraviolet spectrum diagnosis technology and the pulse laser deposition process are deeply fused, so that the film growth process is accurately controlled, and the process is optimized.

The invention relates to a gas discharge detection method, system and equipment based on an ultraviolet spectrum and a medium. The method comprises the following steps: transmitting a frequency-modulated ultraviolet light beam to a gas chamber to be detected, synchronously collecting and processing a transmission light signal in a branching manner, and simultaneously obtaining a modulated spectrum signal for gas absorption analysis and a discrete photon pulse signal for detecting a discharge event; respectively processing the two paths of signals, and extracting sulfur dioxide concentration information and photon radiation characteristics; fusing the two types of features to construct a dynamic feature vector, and obtaining a discharge state grade by using a dynamic Bayesian network diagnosis model; and finally, combining the concentration and state information, and outputting the membership degree of the discharge duration through fuzzy logic. By adopting the method, the fast process and the slow process of partial discharge can be cooperatively monitored, and the early detection sensitivity and the diagnosis reliability are improved.

The invention discloses a flue gas emission monitoring system which comprises the following steps: synchronously acquiring a mixed signal containing a blackness image, a particulate matter beta ray attenuation value and an SO2 / NOx ultraviolet spectrum on the central axis of the same section of a flue to realize simultaneous and same-domain acquisition of three types of pollutants; after analog-to-digital conversion, inputting into edge computing nodes, and completing real-time joint inversion of blackness, particulate matters and SO2 / NOx by a multi-task convolutional network; the tuning fork array in the sampling pipeline is used for obtaining on-way loss, and a final SO2 / NOx value is obtained through reverse recursive compensation; pixel-level cross-correlation conversion is carried out on the blackness and the particulate matter matrix, so that the blackness and SO2 / NOxx are normalized to the same metering chain; inputting a unified environment compensation model by combining wall temperature, illumination and vibration, and applying consistent dynamic gains to the two; and packaging according to a second level and writing through a block chain. According to the invention, the accuracy, reliability and supervision consistency of flue gas emission monitoring can be greatly improved.

This invention discloses a method for preparing selenized Ophiopogon japonicus polysaccharide, its structural characterization, and its applications. The preparation method includes: dissolving Ophiopogon japonicus polysaccharide in dilute nitric acid, adding sodium selenite, reacting at 50–90°C for 4–12 hours, adjusting the pH to neutral, and obtaining selenized Ophiopogon japonicus polysaccharide after dialysis, concentration, and freeze-drying. Structural characterization was performed using ultraviolet spectroscopy, infrared spectroscopy, and scanning electron microscopy, showing that selenium was successfully linked to the polysaccharide molecule in the form of selenite ester. Multiple cell experiments showed that: CCK-8 assay results indicated that the polysaccharide had no significant toxicity to RAW264.7 cells in the concentration range of 25–100 μg / mL; Griess assay and ELISA results showed that the polysaccharide significantly inhibited LPS-induced release of NO, TNF-α, and IL-6 from macrophages in a concentration-dependent manner; GC-MS analysis of the metabolite lactate revealed its anti-inflammatory mechanism at the metabolic level. Animal experiments showed that the selenized Ophiopogon japonicus polysaccharide significantly reduced the inflammatory response in a mouse skin burn model and promoted wound healing. The process of this invention is simple and the conditions are mild. The selenized Ophiopogon japonicus polysaccharide prepared has good anti-inflammatory activity and can be used to prepare drugs for treating skin burns and inflammation.

The application discloses a method for preparing a low-loss deep ultraviolet optical thin film by ion beam sputtering, comprising the following steps: substrate super-clean pretreatment; ultra-high vacuum environment establishment; low-loss film system material selection; double ion beam collaborative sputtering deposition; interface and stress regulation; in-situ real-time monitoring and post-processing. The application overcomes the problem of high loss of existing deep ultraviolet ion beam sputtering coating, provides a systematic process method, effectively reduces impurity adsorption and structural defects in the film layer through main ion beam sputtering deposition and auxiliary ion beam in-situ bombardment cleaning interface, cooperates with interface gradient regulation and fine stress control process, can adapt to different substrate materials and film system structures, and can be applied in batch to the preparation of optical elements required by deep ultraviolet laser systems and deep ultraviolet spectral analysis instruments; realizes that the thin film absorption loss is less than 5ppm, the surface roughness Ra is less than 0.5nm, the interface defect density is significantly reduced, and the optical performance and stability of the deep ultraviolet element are improved.

The invention discloses a control method and device of a dish washing machine, electronic equipment and a storage medium, and relates to the technical field of intelligent kitchen ware. The method comprises the following steps: when to-be-cleaned tableware is pre-cleaned, controlling an ultraviolet spectrum detection unit to monitor a real-time value of the total organic carbon content in washing water; according to the real-time value of the total organic carbon content, the smudginess grade of the tableware to be cleaned is determined; determining washing modes of the dish-washing machine in a main washing stage and a rinsing stage according to the smudginess grade; wherein the washing modes at least comprise main washing parameters and rinsing parameters, and the main washing parameters and the rinsing parameters of different washing modes are different; the tableware to be cleaned is subjected to main washing according to the main washing parameters, and the tableware to be cleaned is rinsed according to the rinsing parameters. According to the scheme, the novel dish washing machine with the built-in ultraviolet spectrum detection unit is provided, automatic quantification of dirt is achieved through the ultraviolet spectrum detection unit, and the dish washing machine is suitable for different tableware dirt scenes; and the whole process from pre-washing to rinsing is automatic, so that the tableware cleaning efficiency is improved.

The invention discloses a plant polyphenol extraction detection method based on synchronization of liquid chromatography and tandem mass spectrometry, and relates to the technical field of analytical chemistry detection, and the method comprises the following steps: predicting a chromatographic elution window through an ultraviolet spectrum, calculating a dynamic synchronization index by fusing mass spectrum background noise data, and starting a synchronous extraction detection program according to the dynamic synchronization index. In the extraction process, the mass spectrum scanning frequency and the ion trap filling time are fed back and adjusted according to pressure and temperature data monitored in real time; and when a target chromatographic peak appears, triggering mass spectrum monitoring channel switching and recording fragment ion information. And finally, integrating the fragment ion abundance ratio and a chromatographic peak shape parameter to carry out result verification. According to the method, dynamic coordination of extraction, separation and detection links is realized, and the signal-to-noise ratio, the sensitivity and the method adaptability of polyphenol compound detection in a complex sample are improved.

The wire grid polarizers 10 and 30 described herein, and wire grid polarizers made by methods described herein, can have high performance across a broad range of the ultraviolet spectrum and across a broad angle of incidence. These polarizers can be durable (resistant to heat, moisture, ultraviolet light, and oxidation). The polarizer can include an array of wires 15 on a substrate 11. Each wire 15 can have a silicon core 12 and a pair of silicon dioxide ribs 13. The core 12 can be sandwiched between the pair of ribs 13, with each rib 13 adjacent to a sidewall 12s of the core 12. A rib width W13 can be ≥4 nm. Each wire 15 can also include a silicon dioxide cap 14. The core 12 can be encircled by a silicon dioxide ring 17.

The application discloses a method for analyzing chlorophyll a, chlorophyll b and beta-carotene in plant extract, comprising the following steps: S1, using an ultraviolet-visible spectrometer to measure visible spectra of plant sample extract; S2, arranging ultraviolet spectrum data of multiple samples to obtain a bilinear mixed signal number array D, and using MCR-ALS algorithm to decompose the array into a relative concentration change profile matrix C and a normalized spectrum profile matrix S T , and then selecting a pure concentration change profile vector c n and a pure spectrum profile vector s n of the first n single analyte; T S3, for the resolved first n component, using the pure concentration change profile vector c n and the pure spectrum profile vector s n T , reconstructing a pure absorbance matrix Dn=c n ◦s n T ; S4, calculating the concentration: calculating the concentration according to the Lambert-Beer law. The application not only inherits the advantages of the Arnon formula, but also can overcome spectral interference to give more accurate quantitative results.

The application discloses a research method for interaction between a new pollutant and DNA, and the method comprises the following steps: using a DFT method in quantum chemistry calculation software to optimize the molecular structure of the new pollutant and deoxy nucleoside; using Multiwfn software to obtain the contribution of each atom to a molecular orbital and atomic charge distribution; finding an electrophilic site of the new pollutant and a nucleophilic site of the deoxy nucleoside; using molecular docking software to perform docking calculation on the new pollutant and a double-stranded DNA fragment and search for an optimal combination position; using a UV-Vis ultraviolet spectrophotometer to perform ultraviolet spectrum titration on the interaction between the new pollutant and the double-stranded DNA; using a super high performance liquid chromatography-mass spectrometry method to perform gradient elution, detecting the deoxy nucleoside through a multiple reaction detection method, calculating a reaction rate, and identifying a deoxyribose unit prone to adduct reaction with the new pollutant; and analyzing the detection result.

The application discloses a kind of deep ultraviolet depolarization spectrometer prism and preparation method thereof, including two right-angle prisms, and deep ultraviolet depolarization optical film between two right-angle prisms;The deep ultraviolet depolarization optical film is the multilayer dielectric film structure of high refractive index medium HfO2 layer, medium refractive index medium Al2O3 layer and low refractive index medium SiO2 layer alternately superimposed, total layer number is not less than 48;The application uses the multilayer dielectric film structure of high refractive index medium HfO2 layer, medium refractive index medium Al2O3 layer and low refractive index medium SiO2 layer alternately superimposed as deep ultraviolet depolarization optical film, effectively solve the problem of deep ultraviolet spectrum depolarization spectrometer, the spectral index satisfies T / R=50 / 50±3% under the condition of 248nm central wavelength, incident angle is 45°, and |Tp-Ts|<4%, it shows that the polarization state of two polarized light polarization is less than 4%, and the ratio of light splitting is accurately controlled in 50:50±3 range, significantly improve the light splitting precision and stability.

The embodiment of the invention discloses a portal frame fault category identification method and related equipment, the inclination angle, the bus voltage, the discharge ultraviolet spectrum and the air insulation strength in the embodiment can cover the structure, the electricity and the environment factors of the portal frame, and the limitation of a single information source is avoided. The method comprises the steps of quantifying probability values of state information to different states based on a preset probability function, calculating belief function values and likelihood function values of the different states according to the probability values, and judging the fault type of the portal frame according to the belief function values and the likelihood function values, so that the fault type is judged based on multi-information-source data. And the fault type discrimination precision is improved.

The application provides a DNA nanorobot and application thereof in multimodal detection of PFHxS. The DNA nanorobot provided by the application contains specific functional DNA nanoelements, carries out double cascade amplification reaction, and obtains triple helix DNA which can realize label-free colorimetric sensing, fluorescent double signal sensing and multimodal detection of PFHxS. In the colorimetric sensing detection, the DNAzyme is formed after combination with Hemin, and in the case of ABTS-H2O2 system, the detection limit of PFHxS is 9.5 μM through ultraviolet spectrum analysis. In the fluorescent sensing detection, the DNAzyme is combined with the TFO chain modified with AIE, and realizes label-free fluorescent signal output based on the aggregation-induced emission effect, and the detection limit is 983 nM. The application realizes the multi-signal transduction of PFHxS through double signal amplification, and provides a new strategy for the on-site rapid detection and laboratory sensitive quantitative analysis of PFHxS.

The invention relates to the technical field of flame detection, in particular to an ultraviolet spectrum characteristic enhanced flame detection method and system and a storage medium, and the method is characterized by comprising the following steps: constructing a dual-channel spectrum sensing system; performing real-time spatial difference processing on the dual-channel spectral data; establishing a dynamic self-adaptive judgment threshold based on the historical differential data; performing time domain fluctuation characteristic analysis on the differential signal; and cross validation and fusion decision making are carried out through multi-dimensional features. The invention can solve or at least alleviate the contradiction between the detection sensitivity and the anti-interference capability caused by dynamic strong background interference, provides the ultraviolet spectrum characteristic enhanced flame detection method and system and the storage medium, improves the recognition capability of weak flame signals, effectively inhibits false alarms, and improves the detection accuracy. And high-sensitivity and high-confidence flame detection in a complex environment is realized.

The wire grid polarizers 10 and 30 described herein, and wire grid polarizers made by methods described herein, can have high performance across a broad range of the ultraviolet spectrum and across a broad angle of incidence. These polarizers can be durable (resistant to heat, moisture, ultraviolet light, and oxidation). The polarizer can include an array of wires 15 on a substrate 11. Each wire 15 can have a silicon core 12 and a pair of silicon dioxide ribs 13. The core 12 can be sandwiched between the pair of ribs 13, with each rib 13 adjacent to a sidewall 12s of the core 12. A rib width W13 can be ≥ 4 nm. Each wire 15 can also include a silicon dioxide cap 14. The core 12 can be encircled by a silicon dioxide ring 17.

This invention discloses a method and system for preprocessing spectral data of a miniature ultraviolet spectrometer. The method includes: acquiring raw spectral data of the target and determining calibration spectral data; sequentially performing dark current smoothing and dark current removal on the raw spectral data; acquiring the calibration spectral data and performing wavelength calibration on the raw spectral data after dark current smoothing and dark current removal based on the size of the wavelength calibration flag; and performing smoothing processing on the wavelength-calibrated raw spectral data. This invention sequentially performs dark current smoothing, dark current removal, wavelength calibration, and smoothing processing on the raw spectral data, enabling accurate detection of low-concentration gases under conditions of simultaneous measurement of multiple component gases.

The invention discloses an optical path system of a ball-borne ultraviolet spectrograph, which belongs to the field of optical instrument design, solves the problems of low broadband efficiency and poor image quality of the existing optical path, and comprises a front-end receiving and transmitting module comprising a light collecting lens (f is equal to 200mm), an ultraviolet enhanced integrating sphere (the reflectivity is greater than or equal to 90%) and an ultraviolet optical fiber; and the rear-end spectrum detection module comprises a slit (10 [mu] m wide), a collimating lens (f = 79 + / -0.4 mm), a reflection blazed grating, an imaging lens (f = 106 + / -0.4 mm) and a back-illuminated ultraviolet CCD (6.5 [mu] m pixel). The lenses are all made of fused quartz or calcium fluoride materials suitable for the ultraviolet band, and other elements are processed through film coating and the like, so that it is guaranteed that an optical path covers 200-400 nm. And a long slit and aberration optimization design is adopted, so that the spatial dimension image quality is remarkably improved. The optical path has the advantages of being wide in wave band, high in luminous flux, high in image quality and high in integration level.

The present invention relates to a solar blind photocathode device, comprising: a substrate, a photocathode layer disposed on the substrate, characterized by a conductive underlayer disposed between the substrate and the photocathode layer, wherein the conductive underlayer comprises a first layer of nickel (130) deposited directly on the substrate, and a second layer of aluminum oxide (140) deposited onto the first layer of nickel, wherein the second layer was obtained through natural oxidation of aluminum or direct evaporation of aluminum oxide. Aluminum oxide was configured to form an aluminum oxide interface with the photocathode layer. The conductive underlayer is arranged to provide electrical conductivity for the photocathode while maintaining high quantum efficiency in the deep ultraviolet spectrum.

The invention belongs to the technical field of illegally added drug screening, and particularly relates to an illegally added drug screening method for effectively separating weak polar compounds, which comprises the following steps: firstly, using a common high performance liquid chromatograph provided with a diode array detector as an analysis tool, and using an octadecylsilane chemically bonded silica chromatographic column with the particle size of 3.5 mu m as a separation carrier; collecting an ultraviolet spectrogram and a chromatogram of the reference substance solution according to specified chromatographic conditions, and establishing an ultraviolet spectrum database; then, integrating and exporting the reference substance solution ultraviolet spectrum database and a data acquisition and processing method thereof into a software package, and copying and transplanting the software package to an operating system of a target high performance liquid chromatograph; during screening detection, the method is called to collect and process a to-be-detected sample so as to automatically identify whether the to-be-detected sample contains a suspicious illegally added target compound or not.

The invention belongs to the technical field of high polymer materials and food packaging safety, and particularly relates to a method for identifying regenerated polyethylene. The invention provides a method for identifying regenerated polyethylene, which is simple, convenient, accurate and efficient, and the regenerated polyethylene is identified by detecting a sample to be detected by utilizing an ultraviolet spectrum method, collecting and screening obtained spectral data and identifying the data by utilizing an identification model of a chemometrics method. The invention also provides application of the method in identification of polyethylene recycled plastics. According to the method, an ultraviolet spectrum method and a chemometrics method are combined, a data processing method is used for preprocessing, a chemometrics model is combined for screening characteristic data, then the discrimination model is established based on the characteristic data for discrimination, the discrimination accuracy rate reaches up to 100%, the discrimination result is more visual and stable, and the method is easy to operate, environmentally friendly and suitable for popularization and application. The primary polyethylene and the regenerated polyethylene can be quickly and accurately identified, and a powerful guarantee is provided for identification work of the regenerated polyethylene.

The invention discloses a supramolecular liquid crystal compound and a preparation method thereof. The liquid crystal property and the light response property of the compound are mainly tested by POM (Polyoxymethylene), UV (Ultraviolet) and other methods. The compound can form a smectic phase (SmA), the photoresponse property of the compound is researched through an ultraviolet spectrum, and the result shows that the compound has the stratified phase (SmA), has good photoresponse behavior and reversible photophysical properties, and is expected to be used for photoelectric molecular switches.

A light emitting diode (LED) includes a semiconductor structure comprising at least one epitaxial layer that is configured to generate far-UVC light, and respective electrical contacts on first and second surfaces of the semiconductor structure. One or more dimensions of the at least one epitaxial layer in a lateral direction are within an order of magnitude of a thickness of the at least one epitaxial layer in a vertical direction. A primary light extraction surface may include at least one sidewall of the semiconductor structure that extends between the first and second surfaces and is configured to emit the far-UVC light. Related devices, arrays thereof, and fabrication methods are also discussed.

The present application belongs to the technical field of organic photoelectric detection, and particularly relates to a Schiff base metal complex, which has the following structural formula: in the formula, M is a divalent metal ion, and R is an alkyl group. Compared with the prior art, the present application has excellent semiconductor characteristics without adding a dopant, has good solubility in an organic solvent, can be prepared into an organic photoelectric transistor active layer by using a low-cost liquid phase process, has excellent ultraviolet spectrum absorption characteristics, thereby improving photoelectric response performance of the transistor to an ultraviolet spectrum, has excellent thermal and chemical stability, and the alkyl chain has a hydrophobic property, so that the application of the present application to an organic photoelectric transistor can further improve the service life and stability of the device. Therefore, the present application provides a new type of semiconductor material for an organic photoelectric transistor.

The invention discloses an ultraviolet spectrometer sample holder rotating device, and relates to the technical field of ultraviolet spectrometers. The ultraviolet spectrometer sample holder rotating device comprises a main body arranged on an ultraviolet spectrometer, a sample chamber and a cover plate, a sample holder rotating mechanism is arranged in the sample chamber, the sample holder rotating mechanism comprises a rotating shaft rotating at the bottom of the sample chamber, the upper end of the rotating shaft is fixedly connected with a disc, and the lower end of the rotating shaft is fixedly connected with the cover plate. A plurality of fixing rings are fixedly connected to the side wall of the disc, and first rotating discs are rotationally connected into the fixing rings. According to the rotating device for the sample holder of the ultraviolet spectrometer, the sample holder can be conveniently rotated, a plurality of sample pools can be conveniently detected, the detection efficiency can be improved, meanwhile, liquid samples in the sample pools can be automatically stirred in the rotating process, the sample pools can be conveniently rotated during detection, the detection effect can be improved, and the detection efficiency can be improved. Therefore, the detection efficiency and effect are improved.

The utility model discloses a portable ultraviolet spectrometer relates to the technical field of ultraviolet spectrometer, including the carrying box, is composed of the box and the cover, the object stage is located in the box, the adjusting assembly includes the rotating frame, is located in the cover through the pivot rotation, and the first set of axle is equipped with in its end, the adjusting frame is hingedly installed in the cover, the utility model has the beneficial effect that: through setting the optical detection head on the adjusting assembly, the technical problem that the traditional portable ultraviolet spectrometer detection probe is difficult to adapt to the complex ore detection scene is effectively overcome. In the ore detection process, facing the ore sample of different shape, rough surface, such as the uneven surface of granite, the complex bedding of shale, the optical detection head can adjust the irradiation direction flexibly, realizes the accurate detection of the different area of ore surface, avoids the composition misjudgment caused by the local detection not in place, and the accuracy of ore composition analysis is improved greatly.

The invention presents a method for analyzing soil contamination by pollutants, particularly organic pollutants, by hyperspectral analysis of reflection and / or photoluminescence, characterized in that said analysis is carried out with a first piece of equipment by illuminating a sample with a light source and with at least one spectral sensor sensitive to a spectrum ranging from thermal infrared to ultraviolet. Abstract figure: 2

The invention belongs to the technical field of environmental monitoring, and provides a flue gas emission continuous monitoring system and device. The system comprises a data acquisition module, a flue gas pretreatment module, an ultraviolet spectrum acquisition module, a multi-mode spectral analysis module, a self-adaptive interference compensation module, a particulate matter fingerprint and pollution source tracing module, a multi-source collaborative data fusion module, a carbon flow rate measurement and calculation module, a digital twinborn maintenance module, a block chain evidence storage module and a system control and communication module. According to the system, the monitoring precision is improved through multi-mode fusion, synchronous detection of gas concentration and particulate matter element composition is achieved through collaborative analysis of a quantum dot enhanced DOAS technology, a Stern-Volmer fluorescence quenching technology and an LIBS technology, the detection effect of NH3 is enhanced by introducing a CdSe / ZnS quantum dot coating, and meanwhile, the precision of gas concentration and particulate matter element analysis is remarkably improved through the means of humidity correction and the like; particularly, the detection precision of NH3 in a complex flue gas environment is improved, and the problem that the monitoring error of a traditional single technology is large is solved.

The invention relates to a wavelength selection method and system for passive spectrum calibration of an in-orbit ultraviolet spectrum instrument, and the method comprises the steps: building a standard line list of a preset wave band, carrying out the preprocessing, carrying out the single-line Gaussian fitting and local baseline modeling, carrying out the quality control through the asymmetry and wavelength deviation, calculating the quality weight of each middle standard line, and carrying out the calculation of the quality weight of each middle standard line. Calculating a similarity kernel of each standard line and other standard lines; based on the constraint of wavelength range endpoints, the constraint of the minimum distance between the two standard lines and the constraint of abnormal standard line elimination, screening the standard lines in the set of the standard lines after quality control by using a determinant point process; further screening according to the cross-day consistency and information amount combined evaluation standard line; and under a Bayesian framework, carrying out linear regression calibration on the standard line through a variable error model to obtain a finally selected standard line. The method is high in accuracy and high in stability.

This invention discloses an online diagnostic device and method for multispectral fusion faults in power equipment, relating to the field of power equipment fault diagnosis technology. The method includes: acquiring visible light, thermal infrared, and ultraviolet spectral images of the power equipment and performing registration processing to generate a multispectral image data cube; inputting the multispectral image data cube into a dynamic kernel generation network to output a multimodal feature map set; performing a dual-path attention mechanism on the multimodal feature map set to generate a fusion feature map focusing on key regions; performing wavelet packet multi-scale decomposition on the cross-modal fusion feature map and constructing a second-level transient analysis sequence and a minute-level steady-state analysis sequence to form a multi-scale spatiotemporal feature sequence characterizing the fault evolution law. This invention achieves a leap from static analysis to dynamic full-process tracking of fault signals, enabling accurate characterization of the entire life cycle evolution law of faults.

The invention discloses a pyrrolopyrrole Schiff base organic photochromic material and a preparation method thereof, diketopyrrolopyrrole is used as a mother nucleus, and a triphenylamine structure and a Schiff base unit are introduced to construct a novel photochromic compound of pyrrolopyrrole Schiff base. Under the irradiation of ultraviolet light (365 nm), the material shows remarkable color change and spectral response in a solution and a polymethyl methacrylate (PMMA) film, and has excellent photochromic performance. The preparation method disclosed by the invention is simple in step, mild in condition and easy in structure modification and function regulation and control, and the obtained material is stable in structure before and after illumination, can quickly respond within 30 seconds, and shows a wide application prospect in the fields of optical information storage, molecular switches, intelligent sensing, flexible photoelectric devices and the like along with obvious signal changes of ultraviolet spectrum, fluorescence and the like.