Two-component doped optical material as well as preparation method and application thereof

Abstract

The invention discloses a two-component doped optical material and a preparation method and application thereof. The two-component doped optical material comprises a host material and an organic guest material, the host material is boric acid, the organic guest material is an organic aromatic fused ring molecule with a large conjugate plane structure, and the two-component doped optical material has intelligent adjustment and high-temperature tolerance, is long in afterglow life and visible to naked eyes, and can be applied to the field of optical materials. The wavelength adjusting range is large, the color change is obvious, and the material is suitable for various photoelectric devices, display materials, thermal mapping materials or related special materials.

Description

Technical Field

[0001] The present invention relates to the technical field of organic luminescent materials, and in particular to a two-component doped optical material and a preparation method and application thereof. Background Art

[0002] Ultra-long afterglow has attracted widespread attention in the fields of bio-imaging, information encryption, etc. Although many ultra-long afterglow materials have been successfully developed through strategies such as H-aggregation, host-guest doping, and polymerization, the development of smart materials with dynamically adjustable afterglow, especially those with high-temperature tolerance, remains challenging. Adjustable high-temperature afterglow materials can respond to external stimuli and exhibit different luminescence behaviors, and have wider practical applications in aspects such as photonic communications. Both thermally activated delayed fluorescence and room temperature phosphorescence rely on triplet states and exhibit extended lifetimes from microseconds to seconds. Therefore, dual emission integration based on thermally activated delayed fluorescence and room temperature phosphorescence is considered to be one of the most convenient strategies to obtain dynamic afterglow materials. Traditional dynamic dual ultra-long afterglow requires two prerequisites: 1) a sufficiently long-lived triplet state to support continuous luminescence; 2) multiple exciton decay paths to achieve multi-channel emission at different temperatures.

[0003] However, the triplet state tends to be deactivated at high temperatures, making it difficult for thermally activated delayed fluorescence and room temperature phosphorescence to exist. This results in a limited temperature range for tunable high-temperature afterglow, which seriously hinders the realization of truly extensive and dynamic temperature-dependent tunability of the afterglow properties of materials. Summary of the invention

[0004] The present application provides a two-component doped optical material and a preparation method and application thereof, which has intelligent adjustment and high temperature tolerance, a long afterglow life visible to the naked eye, a large adjustment wavelength range and obvious color changes, and is suitable for various optoelectronic devices, display materials, thermal mapping materials or related special materials.

[0005] In a first aspect, an embodiment of the present application provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid, and the organic guest material is an organic aromatic condensed ring molecule having a large conjugated planar structure.

[0006] In some embodiments, the organic guest material includes at least one of coronene, benzo(G,H,I)perylene, chrysene, pyrene, tetracene, pentacene, and perylene.

[0007] In some embodiments, the organic guest material is coronene.

[0008] In some embodiments, the mass percentage of the host material is 95%-99.5%, and the mass percentage of the organic guest material is 0.5%-5%.

[0009] In some embodiments, the dual-component doped optical material has a temperature-adjustable ultra-long afterglow from blue to yellow visible to the naked eye, and the temperature adjustable range is 30° C.-150° C.

[0010] In some embodiments, the temperature-dependent afterglow lifetime of the temperature-adjustable ultra-long afterglow is greater than or equal to 1.0 second.

[0011] In some embodiments, the dual-component doped optical material has a white ultra-long afterglow.

[0012] In the second aspect, an embodiment of the present application provides a method for preparing a two-component doped optical material, comprising the following steps: dissolving a main material and an organic guest material in a solvent and fully mixing them, slowly evaporating the solvent and heating at 100°C-140°C to obtain the two-component doped optical material, wherein the main material is boric acid, and the organic guest material is an organic aromatic condensed ring molecule with a large conjugated planar structure.

[0013] In some embodiments, the solvent includes at least one of dioxane, ethanol, methanol, and tetrahydrofuran.

[0014] In a third aspect, an embodiment of the present application provides an application of a two-component doped optical material in optoelectronic devices, display materials, thermal mapping materials or optical special materials.

[0015] It can be seen from the above technical scheme that the present specification provides a two-component doped optical material, which uses boric acid as the main material and doped with organic aromatic condensed ring molecules with a large conjugated planar structure as the guest material. It has intelligent adjustment and high temperature tolerance. The material has stable luminescent properties and can be used in the air without inert gas protection or vacuum environment. Moreover, the afterglow life is long and visible to the naked eye, the adjustment wavelength range is large and the color change is obvious, and it can be applied to various optoelectronic devices, display materials, thermal mapping materials or related special materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the preparation process of a two-component doped optical material provided in some embodiments of the present application;

[0018] Figure 2 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0019] Figure 3 A temperature-dependent persistence color coordinate diagram of a two-component doped optical material provided in some embodiments of the present application;

[0020] Figure 4A A temperature-dependent delayed emission decay lifetime diagram of a dual-component doped optical material at 450 nm provided in some embodiments of the present application;

[0021] Figure 4B A temperature-dependent delayed emission decay lifetime diagram of a dual-component doped optical material at 560 nm provided in some embodiments of the present application;

[0022] Figure 5 Afterglow photos of dual-component doped optical materials provided in some embodiments of the present application;

[0023] Figure 6 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0024] Figure 7 A temperature-dependent delayed emission decay lifetime diagram of a two-component doped optical material provided for some embodiments of the present application;

[0025] Figure 8 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0026] Fig. 9 A temperature-dependent delayed emission decay lifetime diagram of a two-component doped optical material provided for some embodiments of the present application;

[0027] Fig.10 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0028] Fig.11 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0029] Fig.12 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0030] Fig.13 The temperature-dependent delayed emission spectra of the dual-component doped optical materials provided in some embodiments of the present application;

[0031] Fig.14 A schematic diagram of the structure of an optoelectronic device provided in some embodiments of the present application;

[0032] Fig.15 A schematic diagram of an application of optical printing by an optoelectronic device provided in some embodiments of the present application;

[0033] Fig.16 A schematic diagram of thermal distribution afterglow imaging of an optoelectronic device provided in some embodiments of the present application;

[0034] Fig.17 Schematic diagram of UV pencil writing at different temperatures of a photoelectric device provided in some embodiments of the present application. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of this specification, the specification will be described more fully below with reference to the relevant drawings. The preferred embodiments of this specification are given in the drawings. However, this specification can be implemented in many different forms without departing from the core spirit of this specification and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of this specification more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this specification belongs. The terms used herein in this specification are only for the purpose of describing specific embodiments and are not intended to limit this specification. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] In a first aspect, an embodiment of the present application provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid, and the organic guest material is an organic aromatic condensed ring molecule with a large conjugated planar structure.

[0038] In an embodiment of the present application, boric acid and an organic aromatic condensed ring molecule with a large conjugated planar structure are combined to obtain a two-component doped optical material. The two-component doped optical material has intelligent adjustment and high temperature tolerance. The material has stable luminescent properties and can be used in the air without inert gas protection or a vacuum environment. Moreover, the afterglow life is long and visible to the naked eye, the adjustment wavelength range is large, and the color change is obvious. It can be applied to various optoelectronic devices, display materials, thermal mapping materials or related special materials.

[0039] In an embodiment of the present application, the organic guest material includes at least one of coronene, benzo(G,H,I)perylene, chrysene, pyrene, tetracene, pentacene and perylene.

[0040] Among them, the chemical structure of coronene is shown in formula (II-1):

[0041]

[0042] The chemical structure of benzo(G,H,I)perylene is shown in formula (II-2):

[0043]

[0044] The chemical structure of chrysene is shown in formula (II-3):

[0045]

[0046] The chemical structure of pyrene is shown in formula (II-4):

[0047]

[0048] The chemical structure of tetracene is shown in formula (II-5):

[0049]

[0050] The chemical structure of pentacene is shown in formula (II-6):

[0051]

[0052] The chemical structure of perylene is shown in formula (II-7):

[0053]

[0054] The above organic guest materials have a large conjugated planar structure in their molecular structure. Since the above organic guest materials are all pure compounds, they are widely available, the raw materials are easily available, the price is low and the preparation is convenient, which reduces the preparation cost of the two-component doped optical material provided in the embodiment of the present application.

[0055] In the embodiment of the present application, the organic guest material is coronene.

[0056] After a large number of experiments, it was found that when the organic guest material is coronene, it is doped in the main material boric acid, and the prepared two-component doped optical material can exhibit dynamic dual emission behavior of delayed fluorescence and phosphorescence, and the high-temperature adjustable ultra-long afterglow color adjustment range can be from yellow at room temperature (30°C) to blue at high temperature (150°C).

[0057] In the embodiments of the present application, the mass percentage of the host material is 95%-99.5%, and the mass percentage of the organic guest material is 0.5%-5%.

[0058] After a large number of experiments, it was found that the different addition amounts of the main material and the guest material in the two-component doped optical material have a great influence on the afterglow performance of the two-component doped optical material. It is necessary to strictly control the mass of the main material to account for 95%-99.5% of the total mass of the two-component doped optical material, and the mass of the organic guest material to account for 0.5%-5% of the total mass of the two-component doped optical material. The obtained two-component doped optical material can show intelligent adjustment and high temperature tolerance, the material has stable luminous properties, can be used in the air without inert gas protection or vacuum environment, and has long afterglow life and visible to the naked eye, a wide adjustment wavelength range and obvious color changes. On the contrary, if the addition amount of the main material or the organic guest material exceeds the above range, the corresponding two-component doped optical material cannot show characteristics such as adjustable high temperature long afterglow.

[0059] Specifically, the mass percentage of the host material can be 95%, 95.5%, 96%, 96.5%, 97%, 97.5%, 98%, 98.5%, 99%, 99.5%, or any mass percentage value between any two of the above values. The mass percentage of the organic guest material can be 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, or any mass percentage value between any two of the above values.

[0060] In the embodiment of the present application, the two-component doped optical material has a temperature-adjustable ultra-long afterglow from blue to yellow that is visible to the naked eye, and the temperature adjustable range is 30°C-150°C.

[0061] The dual-component doped optical material provided in the embodiment of the present application can exhibit a temperature-adjustable afterglow effect within the range of 30° C. to 150° C. Specifically, it can emit yellow afterglow visible to the naked eye at room temperature (30° C.) and blue afterglow visible to the naked eye at high temperature (150° C.).

[0062] In the embodiment of the present application, the temperature-dependent afterglow lifetime of the temperature-adjustable ultra-long afterglow is greater than or equal to 1.0 second.

[0063] Through experimental measurement, the temperature-adjustable ultra-long afterglow emitted by the dual-component doped optical material provided in the embodiment of the present application has a temperature-dependent afterglow lifetime greater than or equal to 1.0 second.

[0064] In the embodiment of the present application, the dual-component doped optical material has a white ultra-long afterglow.

[0065] After a large number of experiments, it was found that in the temperature-adjustable ultra-long afterglow from blue to yellow visible to the naked eye exhibited by the two-component doped optical material, a white ultra-long afterglow can appear.

[0066] In the second aspect, an embodiment of the present application provides a method for preparing a two-component doped optical material, which may include the following steps: dissolving a main material and an organic guest material in a solvent and fully mixing them, slowly evaporating the solvent and heating at 100°C-140°C to obtain a two-component doped optical material, wherein the main material is boric acid and the organic guest material is an organic aromatic condensed ring molecule with a large conjugated planar structure.

[0067] Figure 1 The schematic diagram of the preparation process of the dual-component doped optical material provided in the embodiment of the present application is shown. Figure 1 As shown, the preparation method of the two-component doped optical material provided in the embodiment of the present application may specifically include the following steps: dissolving the host material (boric acid) and the organic guest material (at least one of coronene, benzo(G,H,I)perylene, chrysene, pyrene, tetracene, pentacene and perylene) in a solvent and fully mixing them, slowly evaporating the solvent at 80°C to obtain a precursor; and then heating the precursor at 100°C-140°C for 20 minutes to prepare a two-component doped optical material. The heating temperature may be 100°C, 110°C, 120°C, 130°C, 140°C, or any temperature value between any two of the above temperature values.

[0068] In the embodiment of the present application, the solvent includes at least one of dioxane, ethanol, methanol and tetrahydrofuran.

[0069] In a third aspect, an embodiment of the present application provides an application of a two-component doped optical material in optoelectronic devices, display materials, thermal mapping materials or optical special materials.

[0070] The following are specific preparation examples involved in the above content of the present disclosure. It should be clear that the following examples are only for illustrating the two-component doped optical materials and their preparation methods and applications disclosed above, and the specific implementation methods and parameters used therein are only one or several methods in accordance with the many processes and methods described above. Those skilled in the art can use other parameters according to the content introduced in this specification to prepare two-component doped optical materials according to the above method without deviating from the core spirit disclosed in the application.

[0071] Example 1

[0072] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is coronene (chemical structure is shown in Formula (II-1)).

[0073] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and coronene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to coronene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80° C. to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130° C. for 20 minutes under an air atmosphere to obtain a two-component doped optical material.

[0074] Figure 2 The temperature-dependent delayed emission spectrum of the two-component doped optical material provided in Example 1 of the present application is shown. Figure 3 The temperature-dependent persistence color coordinate diagram of the two-component doped optical material provided in Example 1 of the present application is shown. Figure 2 , Figure 3 As shown, the dual-component doped optical material provided in Example 1 can exhibit dynamic dual emission behaviors of delayed fluorescence (about 450nm) and phosphorescence (about 560nm), and the color adjustment range of high-temperature adjustable ultra-long afterglow can be from yellow at room temperature (30°C) to blue at high temperature (150°C). Moreover, in the temperature-adjustable ultra-long afterglow visible to the naked eye, white ultra-long afterglow can be exhibited at about 110°C.

[0075] Figure 4A The temperature-dependent delayed emission decay lifetime diagram of the dual-component doped optical material provided in Example 1 of the present application at 450 nm is shown. Figure 4B The temperature-dependent delayed emission decay lifetime diagram of the dual-component doped optical material provided in Example 1 of the present application at 560 nm is shown. Figure 4A After fitting, it is calculated that the delayed fluorescence of the two-component doped optical material at high temperature (150°C) can have a lifetime of 1.02s. Figure 4B After fitting, it was calculated that the maximum phosphorescence lifetime of the two-component doped optical material at room temperature (30°C) can reach 2.41s.

[0076] Figure 5 FIG. 1 shows the afterglow photograph of the dual-component doped optical material provided in Example 1 of the present application. Figure 5 As shown, the two-component doped optical material provided in Example 1 can exhibit an ultra-long afterglow of up to tens of seconds at room temperature, and the afterglow color gradually changes from yellow to green; as the temperature increases, it can exhibit ultra-long afterglow of other colors; when the temperature rises to above 130°C, it can exhibit a blue high-temperature afterglow of nearly ten seconds.

[0077] Example 2

[0078] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is benzo(G,H,I)perylene (chemical structure is shown in Formula (II-2)).

[0079] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and benzo(G,H,I)perylene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to benzo(G,H,I)perylene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80°C to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a two-component doped optical material.

[0080] Figure 6 FIG. 2 shows the temperature-dependent delayed emission spectrum of the dual-component doped optical material provided in Example 2 of the present application. Figure 6 As shown, the dual-component doped optical material provided in Example 2 can exhibit dynamic dual emission behavior that is adjustable at room temperature, at about 460nm and 500nm respectively; and, as the temperature changes, the afterglow intensity varies.

[0081] Figure 7 A temperature-dependent delayed emission decay lifetime diagram of the dual-component doped optical material provided in Example 2 of the present application is shown. Figure 7 After fitting, it is calculated that the afterglow lifetime of the two-component doped optical material can reach 0.23s.

[0082] Example 3

[0083] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is chrysene (chemical structure is shown in formula (II-3)).

[0084] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and chrysene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to chrysene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80°C to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a two-component doped optical material.

[0085] Figure 8 FIG. 3 shows the temperature-dependent delayed emission spectrum of the dual-component doped optical material provided in Example 3 of the present application. Figure 8 As shown, the dual-component doped optical material provided in Example 3 can emit afterglow with a wavelength of about 575 nm.

[0086] Fig. 9 A temperature-dependent delayed emission decay lifetime diagram of the dual-component doped optical material provided in Example 3 of the present application is shown. Fig. 9 After fitting, it is calculated that the afterglow lifetime of the two-component doped optical material can reach 1.04s.

[0087] Example 4

[0088] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is pyrene (chemical structure is shown in formula (II-4)).

[0089] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and pyrene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to pyrene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80°C to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a two-component doped optical material.

[0090] Fig.10 FIG. 4 shows the temperature-dependent delayed emission spectrum of the dual-component doped optical material provided in Example 4 of the present application. Fig.10 As shown, the dual-component doped optical material provided in Example 4 can exhibit dynamic dual emission behavior that is adjustable at room temperature, at about 460nm and 590nm respectively; and the afterglow intensity varies with the change of temperature.

[0091] Example 5

[0092] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is tetracene (the chemical structure is shown in Formula (II-5)).

[0093] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and tetracene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to tetracene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80°C to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a two-component doped optical material.

[0094] Fig.11 FIG. 5 shows the temperature-dependent delayed emission spectrum of the dual-component doped optical material provided in Example 5 of the present application. Fig.11 As shown, the dual-component doped optical material provided in Example 5 can emit afterglow with a wavelength of about 490 nm, and the afterglow intensity varies with the change of temperature.

[0095] Example 6

[0096] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is pentacene (chemical structure is shown in Formula (II-6)).

[0097] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and pentacene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to pentacene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80°C to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a two-component doped optical material.

[0098] Fig.12 FIG. 6 shows the temperature-dependent delayed emission spectrum of the dual-component doped optical material provided in Example 6 of the present application. Fig.12 As shown, the dual-component doped optical material provided in Example 6 can emit afterglow with a wavelength of about 475 nm, and the afterglow intensity varies with the change of temperature.

[0099] Example 7

[0100] This embodiment provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is perylene (the chemical structure is shown in Formula (II-7)).

[0101] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and perylene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to perylene is 99.5:0.5); placing the mixed solution in an oven, and slowly evaporating the solvent at 80°C to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a two-component doped optical material.

[0102] Fig.13 FIG. 2 shows the temperature-dependent delayed emission spectrum of the dual-component doped optical material provided in Example 7 of the present application. Fig.13 As shown, the dual-component doped optical material provided in Example 7 can emit afterglow with a wavelength of about 520 nm, and the afterglow intensity varies with the change of temperature.

[0103] Comparative Example 1

[0104] This comparative example provides a two-component doped optical material, including a host material and an organic guest material, wherein the host material is boric acid and the organic guest material is coronene (the chemical structure is shown in Formula (II-1)).

[0105] The preparation method of the two-component doped optical material provided in this embodiment includes the following steps: dissolving boric acid and coronene in dioxane to obtain a mixed solution (wherein the mass ratio of boric acid to coronene is 99:10); placing the mixed solution in an oven, and slowly evaporating the solvent at 80° C. to obtain a precursor powder; placing the precursor powder on a heating plate and heating it at 130° C. for 20 minutes under an air atmosphere to obtain a two-component doped optical material.

[0106] According to experimental determination, the two-component doped optical material prepared in this comparative example did not show adjustable high-temperature afterglow characteristics due to the mass ratio of boric acid to coronene being adjusted to 99:10.

[0107] Example 8

[0108] The present embodiment provides a multifunctional intelligent optoelectronic device, and its preparation method includes the following steps: selecting a square alumina ceramic sheet with a specification of 200*200*0.635mm as the substrate of the device, and evenly spreading the precursor powder obtained in Example 1 on the substrate with a thickness of 0.1mm. Thereafter, placing it on a heating plate and heating it at 130°C for 20 minutes under air atmosphere conditions to obtain a light-emitting layer with high-temperature adjustable ultra-long afterglow, and selecting a quartz sheet with a specification of 200*200*0.5mm as the top layer of the package.

[0109] Fig.14 A schematic structural diagram of the optoelectronic device provided in Example 8 of the present application is shown.

[0110] Fig.15 The schematic diagram of the application of the optoelectronic device for optical printing provided in Example 8 of the present application is shown. Fig.15 As shown, the optoelectronic device prepared in Example 8 was optically printed using a hollow mold embedded with a two-bit code, producing discernible information in the generated afterglow image, and the afterglow printing demonstrated self-erasing and persistent information storage characteristics.

[0111] Fig.16 The schematic diagram of thermal distribution afterglow imaging of the optoelectronic device provided in Example 8 of the present application is shown. Fig.16 As shown, the photovoltaic device provided in Example 8 is placed on a heating plate and placed at 150°C for 60 seconds. The afterglow image visualization highlights the blue area representing high temperature, which is aligned with the focus of thermal distribution imaging; when naturally cooled to ambient temperature, the afterglow in the hot center gradually turns white or even yellow, highlighting the effective thermal field mapping function and demonstrating extensive large-area thermal imaging capabilities.

[0112] Fig.17 The schematic diagram of the photoelectric device provided in Example 8 of the present application performing UV pencil writing at different temperatures is shown. Fig.17 As shown, by utilizing the ultra-long afterglow characteristics of optoelectronic equipment, the letters "I", "O" and "A" are written with 365nm ultraviolet laser at high temperature (130°C) and low temperature (50°C), respectively, and the handwritten input information can be temporarily retained for about 10 seconds. Therefore, the two-component doped optical material provided in the embodiment of the present application can be applied to time-resolved information transmission technology.

[0113] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The above-described embodiments only express several embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided by the present invention are all within the protection scope of the claims attached to the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims, and the description and drawings may be used to interpret the contents of the claims.

Claims

1. A two-component doped optical material, characterized in that: The invention comprises a main material and an organic guest material, wherein the main material is boric acid, and the organic guest material is an organic aromatic condensed ring molecule with a large conjugated plane structure.

2. The two-component doped optical material according to claim 1, characterized in that: The organic guest material includes at least one of coronene, benzo(G,H,I)perylene, chrysene, pyrene, tetracene, pentacene and perylene.

3. The two-component doped optical material according to claim 2, characterized in that: The organic guest material is coronene.

4. The two-component doped optical material according to claim 1, characterized in that: In terms of mass percentage, the mass percentage of the host material is 95%-99.5%, and the mass percentage of the organic guest material is 0.5%-5%.

5. The two-component doped optical material according to claim 1, characterized in that: The dual-component doped optical material has a temperature-adjustable ultra-long afterglow from blue to yellow visible to the naked eye, and the temperature adjustable range is 30° C.-150° C.

6. The two-component doped optical material according to claim 5, characterized in that: The temperature-dependent afterglow life of the temperature-adjustable ultra-long afterglow is greater than or equal to 1.0 second.

7. The two-component doped optical material according to claim 5, characterized in that: The dual-component doped optical material has a white ultra-long afterglow.

8. A method for preparing a two-component doped optical material, characterized in that: The method comprises the following steps: dissolving a main material and an organic guest material in a solvent and then fully mixing them, slowly evaporating the solvent and then heating at 100° C.-140° C. to obtain the two-component doped optical material, wherein the main material is boric acid and the organic guest material is an organic aromatic condensed ring molecule with a large conjugated planar structure.

9. The method for preparing a two-component doped optical material according to claim 8, characterized in that: The solvent includes at least one of dioxane, ethanol, methanol and tetrahydrofuran.

10. Use of the two-component doped optical material according to any one of claims 1 to 7 in optoelectronic devices, display materials, thermal mapping materials or optical special materials.

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