CN110699069A - Light response type luminescent material and application thereof - Google Patents

Abstract

The invention discloses a light-responsive luminescent material, which is obtained by mixing an organic metal complex luminescent material and a photobase generator, wherein under the illumination of specific wavelength, an alkaline substance generated by the photobase generator and the organic metal complex generate photochemical reaction, so that the luminescence of the organic metal complex is effectively regulated, and the regulation and control of the luminescence of the organic metal complex are realized while the aggregation induced quenching phenomenon of the organic luminescent material in an aggregation state is effectively avoided; the light response type luminescent material is used for preparing the dual image storage material, and the two images are displayed at the same spatial position under different conditions, so that the organic unification of the dominant anti-counterfeiting and the recessive anti-counterfeiting is realized, and the dual image storage effect is achieved.

Description

A light-responsive luminescent material and its application

technical field

The invention belongs to the technical field of composite materials, and more particularly, relates to a light-responsive luminescent material and its application.

Background technique

Traditional organic light-emitting materials can not effectively adjust the light-emitting materials due to aggregation-induced quenching phenomenon in the aggregated state, which leads to the reduction of their luminous efficiency or even the disappearance of light-emitting, thus limiting their applications. Compared with traditional organic light-emitting materials, organometallic complexes have rich photochemical/physical properties and higher luminescence quantum yields. Patent CN101613315B uses them as organic electroluminescent materials, which can emit phosphorescence and can achieve a wide range of emission light. It is continuously tunable; however, how to use it in photoresponsive luminescent materials and control the luminescent properties of photoresponsive luminescent materials has not been reported.

As an important image storage method, holographic technology can be used in the field of high-end anti-counterfeiting technology. The image recorded by holographic technology has the characteristics of high brightness under natural light, multi-angle naked eye recognition and difficult to forge. Patent CN108148331B coats the surface of up-conversion nanocrystals with organic ligands to prepare a composite material. The composite material can observe the holographic pattern recognized by the naked eye under natural light, and can observe the fluorescence visible to the naked eye under the near-infrared laser. Identifiable anti-counterfeiting material. However, a single anti-counterfeiting method that lacks concealment is difficult to meet the development needs of anti-counterfeiting technology. The development of anti-counterfeiting technology that can be recognized by naked eyes and invisible is the development direction of anti-counterfeiting technology.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to provide a light-responsive luminescent material in view of the problems existing in the prior art, which can effectively avoid the aggregation-induced quenching phenomenon of the organic luminescent material due to the aggregation state, and effectively adjust the luminescence of the organometallic complex. The regulation of luminescence of organometallic complexes is realized.

For achieving the above object, the technical scheme adopted in the present invention is:

A light-responsive luminescent material, comprising an organometallic complex luminescent material and a photobase generator, wherein the organometallic complex luminescent material is one of structural formula Pt-1 or Pt-2:

The group X in the structural formulas Pt-1 and Pt-2 is one of methyl, ethyl, trifluoromethyl, nitro, and amino groups; the group R in the structural formulas Pt-1 and Pt-2 is n-dodecyl, n-dodecyloxy, n-hexadecyl, n-hexadecyloxy, tetraethylene glycol, citronellol, 4-cyano-4'-heptylbiphenyl, 4-n-octyloxy One of 4-cyano-4'-cyanobiphenyl, 4-cyano-4'-pentylbiphenyl and 4-n-butoxy-4'-cyanobiphenyl.

The light-responsive luminescent material regulates the luminescence of the organometallic complex under the irradiation of a light source of a specific wavelength, thereby effectively avoiding the phenomenon of aggregation-induced quenching of the organic luminescent material due to the aggregation state.

Further, the mass ratio of the organometallic complex luminescent material to the photobase generator is 1:0.5-10.

Further, the mass ratio of the organometallic complex luminescent material and the photobase generator is 1:3-6.

Further, described photobase generator is a kind of in following structural formula:

The group X in the structural formula PBG2 is H or NO ₂ ; the photo-base generator is a salt that can generate alkaline substances under light irradiation.

Another object of the present invention is that the light-responsive luminescent material is used in the preparation of dual image storage materials, anti-counterfeiting inks, and chemical sensors, and the wavelength of light acting on the light-responsive luminescent material is 200- 370 nm; the light-responsive luminescent material is used as a raw material to prepare the dual image storage material, anti-counterfeiting ink, and chemical sensor.

Further, when the photo-responsive luminescent material is used to prepare a dual image storage material, the storage material includes 1-10 parts by weight of the photo-responsive luminescent material, 7-50 parts by weight of liquid crystal, 0.2-10 parts by weight of Visible light initiator, 0.1-10 parts of polymerization inhibitor N-phenylglycine and 30-70 parts by weight of photopolymerizable monomer; the light-responsive luminescent material is the organic metal complex luminescent material and a photobase generator.

Further, when preparing the dual image storage material, the liquid crystal is P0616A, 4-cyano-4'-heptylbiphenyl, 4-cyano-4'-pentylbiphenyl, 4-n-octyloxy One or more of -4'-cyanobiphenyl and 4-n-butoxy-4'-cyanobiphenyl;

The visible light initiator is one of camphorquinone, 3,3'-carbonyl bis(7-diethylamine coumarin) and tetraiodotetrachlorofluorescein sodium salt;

The photopolymerizable monomer includes a monofunctional monomer and a multifunctional monomer, the mass ratio of the monofunctional monomer to the multifunctional monomer is 1:0.3-2, and the monofunctional monomer is The body is one or more of N-vinylpyrrolidone, acrylamide, N,N-dimethylacrylamide, methyl methacrylate, methyl acrylate, ethyl acrylate and methacrylic acid; the multifunctional The monomer is one or more of ethylene glycol dimethacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate and hyperbranched acrylate.

Further, the preparation method of the dual image storage material specifically includes the following steps:

S1: Mix 1-10 parts by weight of the light-responsive luminescent material, 7-50 parts by weight of liquid crystal, 0.2-10 parts by weight of a visible light initiator and 30-70 parts by weight of a photopolymerizable monomer to obtain a mixed solution A ;

S2: pouring the mixed solution A described in step S1 into a liquid crystal cell, and irradiating the coherent laser in the holographic optical path, the photopolymerizable monomer undergoes a photopolymerization reaction to obtain a holographic material storing a high-brightness holographic pattern under visible light;

S3: The holographic material in step S2 is irradiated by ultraviolet light with a wavelength of 200-370 nm through a mask, and the organometallic complex luminescent material and the photobase generator undergo a photochemical reaction to obtain high-efficiency luminescence under ultraviolet light fluorescence pattern.

Further, in step S2, the wavelength of the coherent laser light is 432-633 nm, and the irradiation time of the coherent laser light is 10-60 s.

Further, the intensity of the ultraviolet light in step S3 is 50-200 mW/cm ² , and the irradiation time is 0.5-10 min.

The double image prepared by the above method includes a holographic pattern with high brightness under visible light and a fluorescent pattern with high efficiency under ultraviolet light, and the holographic pattern and the fluorescent pattern can be the same or different; the holographic pattern can be a two-dimensional image or a three-dimensional image. image, the fluorescent pattern is a two-dimensional image.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The present invention obtains a light-responsive light-emitting material by mixing an organometallic complex light-emitting material and a photobase generator, which can effectively avoid the phenomenon of aggregation-induced quenching of the organic light-emitting material due to the aggregation state. The basic substance generated by the base generator and the organometallic complex undergo a photochemical reaction, thereby effectively regulating the luminescence of the organometallic complex, thereby realizing the regulation of the luminescence of the organometallic complex.

(2) In the present invention, the photo-responsive luminescent material is used to prepare a dual image storage material. Under visible light, a visible light initiator and a photopolymerizable monomer undergo a photopolymerization reaction, and the polymer obtained by the reaction undergoes phase separation from the liquid crystal to obtain a high Bright holographic pattern; under ultraviolet light, the organometallic complex luminescent material and the photobase generator undergo a photochemical reaction. While ensuring that the holographic pattern is not affected, efficient fluorescent image storage is achieved. Two kinds of images are displayed under different conditions, which realizes the organic unity of explicit anti-counterfeiting and hidden anti-counterfeiting, and achieves the effect of double image storage.

(3) The light-responsive luminescent material provided by the present invention has good solubility, and the organometallic complex obtained by the modification of the flexible side chain and the photobase generator in a certain proportion can be mixed with liquid crystal, visible light initiator and photopolymerization agent. The monomers are mixed to obtain a homogeneous solution, which solves the problem that the organometallic complex is difficult to dissolve in the holographic material system.

(4) The light-responsive luminescent material provided by the present invention can be applied not only to high-end optical anti-counterfeiting, but also to technical fields such as optical information storage and luminescent display.

Description of drawings

Fig. 1 is the fluorescence spectrum test result graph of embodiment 1;

Fig. 2 is the fluorescence spectrum test result graph of embodiment 2;

Fig. 3 is the fluorescence spectrum test result graph of embodiment 3;

Fig. 4 is the fluorescence spectrum test result graph of embodiment 4;

Fig. 5 is the holographic image of embodiment 5;

Fig. 6 is the fluorescence image of embodiment 5;

Fig. 7 is the fluorescence spectrum test result graph of comparative example 1;

Fig. 8 is the fluorescence spectrum test result graph of comparative example 2;

Fig. 9 is the fluorescence spectrum test result graph of comparative example 4;

FIG. 10 is a fluorescence image of Comparative Example 6. FIG.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Take 1 mg of organometallic complex luminescent material (structural formula Pt-1, group X is trifluoromethyl, group R is n-dodecyl), 0.5 mg of photobase generator (structural formula is PBG1) and 100 mg of polycarbonate. Propyl ester (PPC) was mixed in 5 ml of tetrahydrofuran solution to obtain a homogeneous solution, which was evaporated at room temperature to prepare a PPC film. The mass ratio of the organometallic complex luminescent material and the photobase generator is 1:0.5. The tetrahydrofuran adopts a commonly used volatile organic solvent to dissolve a solid in a volatile liquid to obtain a common method in the chemical field to obtain a homogeneous mixed solution.

The PPC film was irradiated with ultraviolet light with a wavelength of 200 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in FIG. 1 . The results show that the film emits light before irradiation, and after a certain period of irradiation, the film luminescence is significantly weakened.

Example 2

Take 1mg of organometallic complex luminescent material (structural formula Pt-1, group X is methyl, group R is 4-n-octyloxy-4'-cyanobiphenyl), 3mg photobase generator (structural formula is PBG 3) Mix with 100 mg of polypropylene carbonate (PPC) in 5 ml of tetrahydrofuran solution to obtain a homogeneous solution, and volatilize at room temperature to prepare a PPC film. The mass ratio of the organometallic complex luminescent material to the photobase generator is 1:3.

The PPC film was irradiated with ultraviolet light with a wavelength of 370 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in FIG. 2 . The results show that the film emits light before irradiation, and after a certain period of irradiation, the film luminescence is significantly weakened.

Example 3

The difference between Example 3 and Example 1 is that 1 mg of organometallic complex luminescent material (structural formula Pt-2, group X is nitro, and group R is n-hexadecyloxy), 6 mg of photobase generator (structural formula) PBG2, X is H) and 100 mg of polypropylene carbonate (PPC) were mixed in tetrahydrofuran solution to obtain a homogeneous solution, which was evaporated at room temperature to prepare a PPC film. The mass ratio of the organometallic complex luminescent material and the photobase generator is 1:6.

The PPC film was irradiated with ultraviolet light with a wavelength of 280 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in FIG. 3 . The results show that the film emits light before irradiation, and after a certain period of irradiation, the film luminescence is significantly weakened.

Example 4

The difference between Example 4 and Example 1 is that 1 mg of organometallic complex luminescent material (structural formula Pt-1, group X is amino group, group R is tetraethylene glycol group), 10 mg photobase generator (structural formula is PBG) 4) Mix with 100 mg of polypropylene carbonate (PPC) in tetrahydrofuran solution to obtain a homogeneous solution, and volatilize at room temperature to prepare a PPC film. The mass ratio of the organometallic complex luminescent material and the photobase generator is 1:10.

The PPC film was irradiated with ultraviolet light with a wavelength of 280 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in FIG. 4 . The results show that the film emits light before irradiation, and after a certain period of irradiation, the film luminescence is significantly weakened.

Example 5

S1: 1.33mg of organometallic complex luminescent material Pt 1 (X group is trifluoromethyl, R group is n-hexadecyl), 0.67mg photobase generator PBG 1, 100mg liquid crystal 4-cyano-4' - Amyl biphenyl, visible light initiator 0.4 mg 3,3'-carbonyl bis(7-diethylamine coumarin) and 20 mg polymerization inhibitor N-phenylglycine, added to 140 mg photopolymerizable monomer, at 25 Ultrasonic dispersion was carried out at °C for 50 min, so that the mixed solution was in a homogeneous phase, and a mixed solution A that could prepare dual image storage materials was prepared. The photopolymerizable monomer is a mixture of 46.7 mg of monofunctional monomer N,N-dimethylacrylamide and 93.3 mg of multifunctional monomer pentaerythritol triacrylate (mass ratio is 1:2).

S2: Pour the mixed solution A described in step S1 into a liquid crystal cell, and irradiate it under a coherent laser of 432 nm for 35 seconds, so that the photopolymerizable monomer undergoes a radical polymerization reaction to obtain a holographic material with a stored holographic pattern.

S3: irradiate the holographic material described in step S2 with ultraviolet light through a mask, and irradiate with ultraviolet light with a wavelength of 365 nm and a light intensity of 50 mW/cm ² for 1 min to obtain a dual image storage that simultaneously stores the holographic pattern and the fluorescent pattern Material.

The holographic pattern of the prepared dual image storage material is shown in FIG. 5 , and the fluorescent pattern is shown in FIG. 6 .

Example 6

S1: 1.4mg of organometallic complex luminescent material Pt1 (X group is methyl group, R group is citronellol group), 8.6mg photobase generator (PBG 2, X is H), 7mg liquid crystal P0616A, 10 mg of visible light initiator tetraiodotetrachlorofluorescein sodium salt and 0.1 mg of polymerization inhibitor N-phenylglycine were added to 30 mg of photopolymerizable monomers, and ultrasonically dispersed for 60 min at 28 °C to make the mixed solution homogeneous. DEK prepared Mix A of the dual image storage material. The photopolymerizable monomer is a mixture of 23 mg of monofunctional monomer N,N-dimethylacrylamide and 7 mg of multifunctional monomer pentaerythritol triacrylate (mass ratio is 1:0.3).

S2: Pour the mixed solution A described in step S1 into a liquid crystal cell, and irradiate it under a coherent laser of 633 nm for 20 seconds, so that the photopolymerizable monomer undergoes a radical polymerization reaction to obtain a holographic material with a stored holographic pattern.

S3: irradiate the holographic material described in step S2 with ultraviolet light through a mask plate, and irradiate with ultraviolet light with a wavelength of 254 nm and a light intensity of 200 mW/cm ² for 1 min to obtain a dual image storage that stores the holographic pattern and the fluorescent pattern at the same time. Material.

The holographic and fluorescent patterns of the prepared dual image storage material were consistent with those in Example 5.

Example 7

S1: 2.5 mg of organometallic complex luminescent material (Pt-1, X is methyl group, R is citronellol group), 2.5 mg of photobase generator PBG 2, 30 mg of liquid crystal 4-n-octyloxy- 4'-cyanobiphenyl, 5 mg of visible light initiator camphorquinone and 5 mg of polymerization inhibitor N-phenylglycine were added to 50 mg of photopolymerizable monomers, and ultrasonically dispersed for 60 min at 28°C to make the mixed solution homogeneous. DEK prepared Mix A of the dual image storage material. The photopolymerizable monomer is a mixture of 25 mg of monofunctional monomer N,N-dimethylacrylamide and 25 mg of multifunctional monomer pentaerythritol triacrylate in a mass ratio of 1:1.

S2: Pour the mixed solution A described in step S1 into a liquid crystal cell, and irradiate it under a coherent laser of 460 nm for 30 seconds, so that the photopolymerizable monomer undergoes a radical polymerization reaction to obtain a holographic material with a stored holographic pattern.

S3: irradiate the holographic material described in step S2 with ultraviolet light through a mask, and irradiate with ultraviolet light with a wavelength of 254 nm and a light intensity of 50 mW/cm ² for 0.5 min to obtain a dual image storing the holographic pattern and the fluorescent pattern at the same time. storage material.

The holographic and fluorescent patterns of the prepared dual image storage material were consistent with those in Example 5.

Comparative Example 1

Take 1 mg of organometallic complex (structural formula Pt-1, group X is trifluoromethyl, group R is n-dodecyl) and 100 mg of polypropylene carbonate (PPC) are mixed in tetrahydrofuran solution to obtain a homogeneous solution, PPC films were prepared by evaporation at room temperature.

The PPC film was irradiated with ultraviolet light with a wavelength of 200 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in FIG. 7 . The results show that when no photobase generator is added, the film emits light both before and after irradiation, and the light hardly changes the film's luminescence.

Comparative Example 2

The difference between Comparative Example 2 and Example 1 is that 1 mg of organometallic complex (structural formula Pt-1, group X is methyl, group R is n-dodecyloxy), 0.1 mg photobase generator (structural formula is PBG1) was mixed with 100 mg of polypropylene carbonate (PPC) in 5 ml of tetrahydrofuran solution to obtain a homogeneous solution, which was evaporated at room temperature to prepare a PPC film. The mass ratio of the organometallic complex luminescent material and the photobase generator is 1:0.1.

The PPC film was irradiated with ultraviolet light with a wavelength of 300 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in FIG. 8 . The results show that the film emits light before irradiation, and after a certain period of time, the film luminescence slightly weakens.

Comparative Example 3

The difference between Comparative Example 3 and Example 1 is that 1 mg of organometallic complex (structural formula Pt-1, group X is methyl, group R is n-dodecyloxy), 15 mg photobase generator (structural formula PBG1) ) and 100 mg of polypropylene carbonate (PPC) in a tetrahydrofuran solution to obtain a homogeneous solution, which was evaporated at room temperature to prepare a PPC film. The mass ratio of the organometallic complex luminescent material and the photobase generator is 1:15.

The PPC film was irradiated with ultraviolet light with a wavelength of 280 nm, and the fluorescence spectra before and after the irradiation were tested. The test results were consistent with Example 4. Therefore, the graph of the test results is not released here. The results show that the film emits light before irradiation, and when the content of photobase generator continues to increase, the film luminescence decreases significantly after a certain period of irradiation.

Comparative Example 4

The difference between Comparative Example 4 and Example 1 is that,

The PPC film was irradiated with visible light with a wavelength of 460 nm, and the fluorescence spectra before and after the irradiation were tested. The test results are shown in Figure 9. The results showed that visible light could not weaken the fluorescence of luminescent PPC films.

Comparative Example 5

The difference between Comparative Example 5 and Example 7 is:

S1: 5 mg of organometallic complex luminescent material (structural formula Pt-2, X is nitro, R is n-hexadecyloxy), 30 mg of liquid crystal 4-cyano-4'-pentyl biphenyl, and 5 mg of visible light initiator 3 ,3'-carbonyl bis(7-diethylamine coumarin) and 5 mg of polymerization inhibitor N-phenylglycine were added to 50 mg of photopolymerizable monomers, and ultrasonically dispersed for 60 min at 28 °C to make the mixed solution homogeneous. Mixture A, which can prepare a dual image storage material, was prepared. The photopolymerizable monomer is a mixture of 25 mg of monofunctional monomer N,N-dimethylacrylamide and 25 mg of multifunctional monomer pentaerythritol triacrylate.

The rest of the steps are the same as in Example 7.

In Comparative Example 5, the material was irradiated with ultraviolet light of 280 nm through the mask, and the fluorescence image could not be obtained.

Comparative Example 6

S1: 0.4 mg of organometallic complex luminescent material (Pt-1, X group is methyl group, R group is citronellol group), 0.2 mg of photobase generator PBG 6, 54 mg of liquid crystal 4-cyano- 4'-heptyl biphenyl, 15 mg of visible light initiator 3,3'-carbonylbis(7-diethylamine coumarin) and 0.08 mg of polymerization inhibitor N-phenylglycine were added to 80 mg of photopolymerizable monomers , and ultrasonically dispersed for 60 min at 28 °C to make the mixed solution a homogeneous phase, and obtained mixed solution A that can prepare dual image storage materials. The photopolymerizable monomer is a mixture of 40 mg of monofunctional monomer N,N-dimethylacrylamide and 40 mg of multifunctional monomer pentaerythritol triacrylate in a mass ratio of 1:1.

The rest of the steps are the same as in Example 7.

In Comparative Example 6, the material was irradiated with ultraviolet light of 280 nm through the mask, and the obtained fluorescence image had low resolution and poor definition. As shown in Figure 10.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. a light-responsive luminescent material, is characterized in that, comprises organometallic complex luminescent material and photobase generator; Described organometallic complex luminescent material is a kind of in structural formula Pt-1 or Pt-2:

The group X in the structural formulas Pt-1 and Pt-2 is one of methyl, ethyl, trifluoromethyl, nitro, and amino groups; the group R in the structural formulas Pt-1 and Pt-2 is n-dodecyl, n-dodecyloxy, n-hexadecyl, n-hexadecyloxy, tetraethylene glycol, citronellol, 4-cyano-4'-heptylbiphenyl, 4-n-octyloxy One of 4-cyano-4'-cyanobiphenyl, 4-cyano-4'-pentylbiphenyl and 4-n-butoxy-4'-cyanobiphenyl. 2 . The light-responsive luminescent material according to claim 1 , wherein the mass ratio of the organometallic complex luminescent material to the photobase generator is 1:0.5-10. 3 . 3 . The light-responsive luminescent material according to claim 2 , wherein the mass ratio of the organometallic complex luminescent material to the photobase generator is 1:3-6. 4 . 4. a kind of light-responsive luminescent material as claimed in claim 1, is characterized in that, described photobase generator is a kind of in following structural formula:

The group X in the structural formula PBG2 is H or NO ₂ . 5. The application of a light-responsive luminescent material according to any one of claims 1-4, characterized in that it is applied to the preparation of dual image storage materials, anti-counterfeiting inks, and chemical sensors, and acts on the light-responsive luminescence The wavelength of illumination of the material is 200-370 nm. 6. The application of a light-responsive luminescent material according to claim 5, wherein when the light-responsive luminescent material is used to prepare a dual image storage material, the storage material comprises 1-10 parts by weight of A light-responsive luminescent material, 7-50 parts by weight of liquid crystal, 0.2-10 parts by weight of a visible light initiator, 0.1-10 parts by weight of a polymerization inhibitor N-phenylglycine, and 30-70 parts by weight of a photopolymerizable monomer. 7. The application of a light-responsive luminescent material according to claim 6, wherein when preparing the dual image storage material, the liquid crystal is P0616A, 4-cyano-4'-heptylbiphenyl , one or more of 4-cyano-4'-pentylbiphenyl, 4-n-octyloxy-4'-cyanobiphenyl and 4-n-butoxy-4'-cyanobiphenyl ; The visible light initiator is one of camphorquinone, 3,3'-carbonyl bis(7-diethylamine coumarin) and tetraiodotetrachlorofluorescein sodium salt; The photopolymerizable monomer includes a monofunctional monomer and a multifunctional monomer, the mass ratio of the monofunctional monomer to the multifunctional monomer is 1:0.3-2, and the monofunctional monomer is The body is one or more of N-vinylpyrrolidone, acrylamide, N,N-dimethylacrylamide, methyl methacrylate, methyl acrylate, ethyl acrylate and methacrylic acid; the multifunctional The monomer is one or more of ethylene glycol dimethacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate and hyperbranched acrylate. 8. The application of a light-responsive luminescent material according to claim 6 or 7, wherein the preparation method of the dual image storage material specifically comprises the following steps: S1: Mix the light-responsive luminescent material, liquid crystal, visible light initiator and photopolymerizable monomer uniformly to obtain mixed solution A; S2: pouring the mixed solution A described in step S1 into a liquid crystal cell, and irradiating the coherent laser in the holographic optical path, the photopolymerizable monomer undergoes a photopolymerization reaction to obtain a holographic material storing a high-brightness holographic pattern under visible light; S3: irradiating the holographic material in step S2 with ultraviolet light with a wavelength of 200-370 nm through a mask plate, the organometallic complex luminescent material and the photobase generator undergo a photochemical reaction to obtain a high-efficiency luminescent material under ultraviolet light. Fluorescent pattern. 9 . The preparation method according to claim 8 , wherein the wavelength of the coherent laser in step S2 is 432-633 nm, and the irradiation time of the coherent laser is 10-60 s. 10 . 10 . The preparation method according to claim 8 , wherein the intensity of the ultraviolet light in step S3 is 50-200 mW/cm ² , and the irradiation time is 0.5-10 min. 11 .

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