Colored light conversion material, colored light conversion adhesive film and photovoltaic module

Abstract

The invention discloses a colored light conversion material, a colored light conversion adhesive film and a photovoltaic module, and the colored light conversion material comprises a compound with a structure shown in the following formula: # imgabs0 #, r1 to R3 and Ra to Rj are each independently selected from the group consisting of H, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted heteroalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, a substituted or unsubstituted amino group, a substituted or unsubstituted amide group, a substituted or unsubstituted cyclic imino group, and a substituted or unsubstituted alkoxy group; r1 represents a hydrogen atom, a substituted or unsubstituted carboxyl group, a substituted or unsubstituted ester group, and a substituted or unsubstituted carbonyl group. According to the colored light conversion material, fluorene which is simple in structure, free of heteroatom rings, free of interaction with metal ions and high in luminous efficiency serves as a structural basis, and the applicability is good; the colored light conversion agent is simple in structure, low in synthesis cost, stable in structure and good in application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic materials, and relates to a color light conversion material, a color light conversion adhesive film and a photovoltaic module, and in particular to a color light conversion material with good applicability, a color light conversion adhesive film prepared therefrom and a photovoltaic module using the film. Background Art

[0002] With the continuous advancement of solar cell technology, the photoelectric conversion efficiency of solar cells has gradually increased. For example, the commonly used N-type TOPCon and heterojunction solar cells (HJT) replace PERC solar cells, and there are new thin-film solar cells, such as perovskite solar cells and organic solar cells. However, high-energy light in sunlight, that is, ultraviolet light, will have an impact on solar cells. This is mainly manifested in that when solar cells are exposed to ultraviolet light for a long time outdoors, the photoelectric conversion efficiency of the cells will decrease and the component materials will be damaged to a certain extent; but simply shielding the ultraviolet light will lose part of the energy of the sunlight. Therefore, the development of a color light conversion material that can absorb ultraviolet light and convert it into low-energy light so that it can be used by solar cells has become an urgent problem to be solved by photovoltaic plants, film plants, and component plants. In response to the above problems, color light converters came into being. This is a color light conversion material that can convert ultraviolet light into visible light.

[0003] So far, many types of color light conversion agents have been developed and applied in the photovoltaic field, such as inorganic rare earths, zinc sulfide quantum dots, carbon dots, etc. There is also a type of color light conversion agent composed of organic small molecules, most of which appear in conjugated structures. CN105419379B and CN103562323B reported a three-benzene ring conjugated organic small molecule color light conversion agent synthesized from benzotriazole as the basic raw material. Compared with other light conversion agents, this light conversion agent does show excellent light conversion performance, such as high quantum yield, lower transmittance in the ultraviolet band, etc. However, due to the presence of lone pairs of electrons in the nitrogen atom of triazole, it is easy to form coordination bonds with cations such as metals, which will limit the scope of application of this type of color light conversion agent to a certain extent.

[0004] Therefore, it is of great practical significance to develop a color light converter with good applicability. Summary of the invention

[0005] Due to the above-mentioned defects in the prior art, the present invention provides a color light conversion agent with good applicability and its application, which is based on the fluorene structure. The fluorene structure has the characteristics of simple structure, no heteroatom ring, no interaction with metal ions and high luminescence efficiency. This structure is introduced into the color light conversion agent to obtain a color light conversion agent with good ultraviolet absorption effect, high fluorescence quantum yield and wide application range and its related products, which overcomes the defect of limited applicability of the current organic small molecule color light conversion agent synthesized with benzotriazole as the basic raw material.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A color light conversion material, comprising a compound having the structure shown in (I):

[0008]

[0009] Wherein, the R1 to R3 and R a ~R j are each independently selected from H, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted amino, substituted or unsubstituted amide, substituted or unsubstituted cycloimido, substituted or unsubstituted alkoxy, substituted or unsubstituted carboxyl, substituted or unsubstituted ester, substituted or unsubstituted carbonyl, and R1-R3 are not H at the same time, R a ~R j are not H at the same time; the substituted substituents include fluorine, chlorine, bromine, iodine, C1~C 20 Hydroxyl, C1~C 20 Ester group, C1~C 20 Carboxyl, C1~C 20 Amino, C1~C 20 Thiol, C1~C 20 Amide group, C1~C 20 Carbonyl, C1~C 20 Alkoxy, C6~C 20 Aryl, C4~C 20 Heteroaryl, C1~C 20 Alkyl, C1~C 20 Heteroalkyl, C1~C 20 Alkenyl and C1~C 20 Any of an imino group.

[0010] The color light conversion material of the present invention uses fluorene, which has a simple structure, does not contain heteroatom rings, does not interact with metal ions and has high luminescence efficiency, as its structural basis. It introduces it into a color light conversion agent and effectively transforms it, which can significantly improve its ultraviolet absorption effect and fluorescence quantum yield. At the same time, it does not have the defect of limited applicability of the current organic small molecule color light conversion agent synthesized with benzotriazole as the basic raw material, and has good applicability and application prospects.

[0011] As the preferred technical solution:

[0012] In the above-mentioned color light conversion material, the R1-R3 are independently selected from H, substituted or unsubstituted C1-C 20 Alkyl, substituted or unsubstituted C1~C 20Any of the alkenyl groups;

[0013] The R a ~R j Each independently selected from H, substituted or unsubstituted C1-C 20 Alkyl, substituted or unsubstituted C1~C 20 Any of alkenyl.

[0014] In the above-mentioned color light conversion material, the R1 to R3 are each independently selected from substituted or unsubstituted C1 to C 20 Any of the alkyl groups;

[0015] The R a ~R j Each independently selected from substituted or unsubstituted C1 to C 20 Any of the alkyl groups.

[0016] A color light conversion material as described above, wherein the color light conversion material comprises any one or a combination of at least two of the following compounds:

[0017]

[0018] The present invention also provides a color light conversion adhesive film, and the raw materials for preparing the color light conversion adhesive film include the color light conversion material and resin as described above.

[0019] As the preferred technical solution:

[0020] In the color conversion adhesive film as described above, the mass percentage of the color conversion material in the preparation raw materials is 0.001-3%. If the content of the organic color conversion agent is lower than 0.001%, the light conversion effect of the light conversion adhesive film will not be obvious. If the content of the organic color conversion agent is higher than 3%, the transmittance of the color conversion adhesive film in the visible light band will decrease, thereby affecting the power generation efficiency of the battery cell.

[0021] In the color light conversion adhesive film as described above, the resin includes any one of polyvinyl acetate, polyethylene-octene copolymer, polyvinyl butyral, hot-melt polyolefin particles or thermoplastic polyurethane, or a combination of at least two thereof.

[0022] A color light conversion adhesive film as described above, wherein the raw materials for preparing the color light conversion adhesive film further include any one or a combination of at least two of a main cross-linking agent, an auxiliary cross-linking agent, a silane coupling agent, a tackifying aid or an inorganic powder;

[0023] The main cross-linking agent forms CC bonds with the color conversion material through free radical coupling, thereby grafting the color conversion material onto the color conversion adhesive film, and is used to efficiently fix the target molecule onto the color conversion adhesive film.

[0024] Preferably, the primary cross-linking agent comprises peroxide.

[0025] Preferably, the peroxide comprises any one or a combination of at least two of tert-butyl peroxy-2-ethylhexyl carbonate, tert-amyl peroxy-2-ethylhexyl carbonate, 2,5-dimethyl-2,5-bis(tert-butyl peroxide)hexane, tert-butyl peroxy-3,5,5-trimethylhexanoate, di(4-methylbenzoyl)peroxide, dibenzoyl peroxide, 1,1-di-tert-butyl peroxycyclohexane, tert-butyl peroxy-2-ethylhexyl carbonate, n-butyl-4,4-di(tert-butyl peroxy)valerate, diisopropylbenzene peroxide, α,α′-bis(tert-butyl peroxy)-1,3-diisopropylbenzene or 1,1-bis(tert-butyl peroxy)-3,3,5-trimethylcyclohexane.

[0026] Preferably, the auxiliary crosslinking agent includes triallyl isocyanurate, triallyl cyanurate or acrylic acid.

[0027] Any one or a combination of at least two of the auxiliary cross-linking agents.

[0028] Preferably, the acrylic auxiliary cross-linking agent includes any one of trimethylolpropane triacrylate, ethoxylated trimethylolpropane triacrylate, propoxylated glycerol triacrylate or ethoxylated pentaerythritol tetraacrylate, or a combination of at least two thereof.

[0029] Preferably, the silane coupling agent includes any one of a vinyl silane coupling agent, a chloroalkyl silane coupling agent, an aminoalkyl silane coupling agent, an epoxyalkyl silane coupling agent, a methacryloxyalkyl silane coupling agent, a sulfur-containing hydrocarbon silane coupling agent, a pseudohalogen silane coupling agent or a quaternary aminoalkyl silane coupling agent, or a combination of at least two thereof.

[0030] Preferably, the adhesion promoter includes any one of silane oligomers, rosin resin, petroleum resin or terpene resin, or a combination of at least two of them.

[0031] Preferably, the inorganic powder includes any one of silicon dioxide, titanium dioxide, montmorillonite, calcium carbonate, mica, zirconium phosphate, magnesium hydroxide, magnesium oxide, aluminum hydroxide or vanadium dioxide, or a combination of at least two thereof.

[0032] In addition, the present invention also provides a photovoltaic module, which includes the color light conversion adhesive film and a battery as described above.

[0033] As the preferred technical solution:

[0034] The photovoltaic module as described above, wherein the cell comprises any one or a combination of at least two of an indium gallium arsenide solar cell, an organic solar cell, a perovskite solar cell, a cadmium sulfide / cadmium telluride solar cell, an amorphous silicon solar cell, a microcrystalline silicon solar cell, and a crystalline silicon solar cell.

[0035] The above technical solution is only a feasible technical solution of the present invention, and the protection scope of the present invention is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0036] The above invention has the following advantages or beneficial effects:

[0037] (1) The present invention uses fluorene, which has a simple structure, does not contain heteroatom rings, does not interact with metal ions, and has high luminescence efficiency, as its structural basis, introduces it into the color light conversion agent and effectively transforms it, which can significantly improve its ultraviolet absorption effect and fluorescence quantum yield. At the same time, it does not have the defect of limited applicability of the current organic small molecule color light conversion agent synthesized from benzotriazole as the basic raw material, and has good applicability;

[0038] (2) The color conversion material of the present invention includes any one or a combination of at least two of the compounds represented by formula I. The color conversion agent based on this structure is not only simple in structure and low in synthesis cost, but also has a stable structure, a wide range of applications and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.

[0040] Figure 1 The ultraviolet absorption and fluorescence spectra of the color light conversion material Xa prepared in Example 1;

[0041] Figure 2 The ultraviolet absorption and fluorescence spectra of the color light conversion material Xb prepared in Example 2. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0043] Example 1

[0044] A color light conversion material Xa, the specific structural formula is

[0045]

[0046] The preparation method comprises the following steps:

[0047] (1) Fluorene (166.22 g), liquid bromine (20 ml) and chloroform (500 ml) were mixed and stirred, and stirred overnight at room temperature under nitrogen protection. After the reaction was completed, the liquid bromine was blown clean with nitrogen and washed with chloroform to obtain a filtrate; the filtrate was then distilled under reduced pressure (<-0.08 MPa) to obtain 2,7-dibromofluorene (yield 98%);

[0048]

[0049] (2) In a N2 atmosphere, sodium tert-butoxide (200 g) was slowly added to a mixed solution of 2,7-dibromofluorene (324 g), octane bromide (400 g) and anhydrous tetrahydrofuran (500 ml). After the addition was complete, the reaction was continued for 6 h. After the reaction was completed, cold water and dichloromethane were added for extraction. The organic layer was taken and dried over anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and the concentrate was recrystallized from methanol to obtain 9,9-dioctyl-2,7-dibromofluorene (yield 95%).

[0050]

[0051] (3) The intermediate product (54.6 g) obtained in step (2), 4-tert-butylphenylboronic acid (40 g), PbCl2(PPh3)2 (50 mg) and potassium carbonate (30 g) were added to a reactor and deoxygenated with nitrogen. Then, N,N-dimethylformamide (DMF, 45 mL) was injected into the reaction vessel under a nitrogen atmosphere, and deionized water (200 mL) previously deoxygenated by nitrogen bubbling was added to the reaction vessel. The mixture was stirred at 90° C. for 4 h. After the reaction was completed, deionized water (2 L) was added to obtain a precipitate. The precipitate was dissolved in ethyl acetate (500 mL), and n-hexane (150 mL) was added to precipitate a black precipitate. After removing the black precipitate, the organic solution was concentrated by vacuum distillation, and the concentrate was recrystallized with isopropyl alcohol (IPA) to obtain a color light conversion agent Xa (yield 90.1%).

[0052]

[0053] UV-vis spectrum (chloroform): λ max =362nm; Fluorescence measurement (chloroform): λ max =483nm. Its ultraviolet absorption and fluorescence spectra are as follows Figure 1 shown.

[0054] Example 2

[0055] A color light conversion material Xb, the specific structural formula is

[0056]

[0057] The preparation method is basically the same as that of Example 1, except for step (3). Step (3) of this embodiment is specifically as follows: the intermediate product (54.6 g) obtained in step (2) of Example 1, 4-ethoxyethyl phenyl borate (45 g), PbCl2(PPh3)2 (50 mg) and potassium carbonate (30 g) are added to a reactor and deoxygenated by nitrogen; then toluene (300 ml) is injected into the reaction vessel under a nitrogen atmosphere, and deionized water (100 mL) previously deoxygenated by nitrogen bubbling is added to the reaction vessel, and the mixture is stirred at 100° C. for 10 h. After the reaction is completed, deionized water (2 L) is added to obtain a precipitate; the precipitate is dissolved in ethyl acetate (500 mL), and n-hexane (150 mL) is added to precipitate a black precipitate. After removing the black precipitate, the organic solution is concentrated by vacuum distillation, and the concentrate is recrystallized with methanol to obtain a color light conversion agent Xb (yield 84.3%).

[0058]

[0059] UV-vis spectrum (chloroform): λ max =368nm. Fluorescence measurement (chloroform): λ max =481nm. Its ultraviolet absorption and fluorescence spectra are as follows Figure 2 shown.

[0060] Example 3

[0061] A color light conversion material Xc, the specific structural formula is

[0062]

[0063] The preparation method is basically the same as that of Example 1, except for step (3). Step (3) of this embodiment is specifically as follows: the intermediate product (54.6 g) obtained in step (2) of Example 1, 4-tert-butoxyphenylboronic acid (41 g), PbCl2(PPh3)2 (50 mg) and potassium carbonate (30 g) are added to a reactor and deoxygenated with nitrogen; then N,N-dimethylformamide (DMF, 45 mL) is injected into the reaction vessel under a nitrogen atmosphere, and deionized water (200 mL) previously deoxygenated by nitrogen bubbling is added to the reaction vessel, and the reaction is stirred at 90° C. for 4 h. After the reaction is completed, deionized water (2 L) is added to obtain a precipitate; the precipitate is dissolved in ethyl acetate (500 mL), and n-hexane (150 mL) is added to precipitate a black precipitate. After removing the black precipitate, the organic solution is concentrated by reduced pressure distillation, and the concentrate is recrystallized with isopropyl alcohol (IPA) to obtain a color light conversion agent Xc (yield 90.1%).

[0064] UV-vis spectrum (chloroform): λmax=356 ​​nm; fluorescence measurement (chloroform): λmax=423 nm.

[0065] Example 4

[0066] A color light conversion material Xd, the specific structural formula is

[0067]

[0068] The preparation method is basically the same as that of Example 1, except for step (3). Step (3) of this example is specifically as follows: the intermediate product (54.6 g) obtained in step (2) of Example 1, 2,3,4-tri-tert-butylphenylboric acid (45 g), PbCl2(PPh3)2 (50 mg) and potassium carbonate (30 g) are added to a reactor and deoxygenated with nitrogen; then N,N-dimethylformamide (DMF, 45 mL) is injected into the reaction vessel under a nitrogen atmosphere, and then Deionized water (200 mL) previously deoxygenated by nitrogen bubbling was added to the reaction vessel, and the reaction was stirred at 90° C. for 4 h. After the reaction was completed, deionized water (2 L) was added to obtain a precipitate; the precipitate was dissolved in ethyl acetate (500 mL), and n-hexane (150 mL) was added to precipitate a black precipitate. After removing the black precipitate, the organic solution was concentrated by vacuum distillation, and the concentrate was recrystallized with isopropyl alcohol (IPA) to obtain a color light converter Xd (yield 87.2%).

[0069]

[0070] UV-vis spectrum (chloroform): λ max =359nm; Fluorescence measurement (chloroform): λ max =461nm.

[0071] Example 5

[0072] A color light conversion material Xe, the specific structural formula is

[0073]

[0074] The preparation method comprises the following steps:

[0075] (1) In a N2 atmosphere, sodium tert-butoxide (200 g) was slowly added to a mixed solution of 2,7-dibromofluorene (324 g), isooctane bromide (400 g) and anhydrous tetrahydrofuran (500 ml). After the addition was complete, the reaction was continued for 9 h. After the reaction was completed, cold water and dichloromethane were added for extraction. The organic layer was taken and dried over anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and the concentrate was recrystallized from methanol to obtain 9,9-dioctyl-2,7-dibromofluorene (yield 95%).

[0076]

[0077] (2) The intermediate product (54.6 g) obtained in step (1), 4-phenylboronic acid (40 g), PbCl2(PPh3)2 (50 mg) and potassium carbonate (30 g) were added to a reactor and deoxygenated with nitrogen. Then, N,N-dimethylformamide (DMF, 45 mL) was injected into the reaction vessel under a nitrogen atmosphere, and deionized water (200 mL) previously deoxygenated by nitrogen bubbling was added to the reaction vessel. The mixture was stirred at 90° C. overnight. After the reaction was completed, deionized water (2 L) was added to obtain a precipitate. The precipitate was dissolved with dichloromethane (500 mL), and n-hexane (150 mL) was added to obtain a black precipitate. After removing the black precipitate, the organic solution was concentrated by vacuum distillation, and the concentrate was recrystallized with isopropyl alcohol (IPA) to obtain a color light conversion agent Xe (yield 93.2%).

[0078]

[0079] UV-vis spectrum (chloroform): λ max =361nm. Fluorescence measurement (chloroform): λ max =479nm.

[0080] Application Example 1

[0081] A color light conversion adhesive film, the raw materials for its preparation include the following components in parts by weight:

[0082]

[0083] The ethylene-1-octene copolymer is LUCENE from LG Chemical of South Korea, the main cross-linking agent is TAEC from Hubei Chengfeng Chemical Co., Ltd., the auxiliary cross-linking agent is TAIC from Xiangyun Rubber & Plastic, the silane coupling agent monomer is A173 from Xuanhao New Materials, the silane coupling agent oligomer is NXH-552 from Nanjing Xuanhao New Materials, and the color light conversion agent Xa is from Example 1;

[0084] The preparation method of the color conversion adhesive film is specifically as follows: ethylene-1-octene copolymer, main crosslinking agent, auxiliary crosslinking agent, silane coupling agent monomer, silane coupling agent oligomer and organic color conversion agent Xa are mixed, and cast by a casting machine to obtain the color conversion adhesive film.

[0085] Application Example 2

[0086] The preparation scheme, added medium and auxiliary agent of this application example are the same as those of application example 1, except that the color light conversion agent is Xb.

[0087] Application Example 3

[0088] The preparation scheme, added medium and auxiliary agent of this application example are the same as those of application example 1, except that the color light conversion agent is Xd.

[0089] Comparative Example

[0090] The preparation scheme, added medium and additives of this comparative example are the same as those of Application Example 1, except that no color conversion agent is added (ie, no organic color conversion agent Xa is added), and finally a conventional POE film is obtained after cast extrusion.

[0091] The performance comparison test of the POE films prepared in Application Examples 1 to 3 and the Comparative Example is as follows:

[0092] The POE films prepared in Application Examples 1 to 3 or the conventional POE films prepared in the comparative example were attached to the light-incident side of the organic solar cell device, and aging simulation was performed under a 1.5G solar simulator. The test was repeated every 10 days for comparison. The performance is shown in Table 1.

[0093] Table 1

[0094]

[0095] It can be observed from Application Examples 1 to 3 and the comparative example that the POE film in the present invention uses a self-made color conversion material, which can significantly reduce the performance attenuation of solar cells under simulated light conditions. This proves that when fluorene materials are used as color conversion agents, the damage of ultraviolet light to solar cells can be effectively reduced, thereby increasing the service life of the device.

[0096] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0097] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A color light conversion material, characterized in that: Including compounds having the structure shown in (I): Wherein, the R1 to R3 and R a ~R j are each independently selected from H, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted amino, substituted or unsubstituted amide, substituted or unsubstituted cycloimido, substituted or unsubstituted alkoxy, substituted or unsubstituted carboxyl, substituted or unsubstituted ester, substituted or unsubstituted carbonyl, and R1-R3 are not H at the same time, R a ~R j are not H at the same time; the substituted substituents include fluorine, chlorine, bromine, iodine, C1~C 20 Hydroxyl, C1~C 20 Ester group, C1~C 20 Carboxyl, C1~C 20 Amino, C1~C 20 Thiol, C1~C 20 Amide group, C1~C 20 Carbonyl, C1~C 20 Alkoxy, C6~C 20 Aryl, C4~C 20 Heteroaryl, C1~C 20 Alkyl, C1~C 20 Heteroalkyl, C1~C 20 Alkenyl and C1~C 20 Any of an imino group.

2. A color light conversion material according to claim 1, characterized in that: The R1 to R3 are each independently selected from H, substituted or unsubstituted C1 to C 20 Alkyl, substituted or unsubstituted C1~C 20 Any of the alkenyl groups; The R a ~R j Each independently selected from H, substituted or unsubstituted C1-C 20 Alkyl, substituted or unsubstituted C1~C 20 Any of alkenyl.

3. A color light conversion material according to claim 2, characterized in that: The R1 to R3 are each independently selected from substituted or unsubstituted C1 to C 20 Any of the alkyl groups; The R a ~R j Each independently selected from substituted or unsubstituted C1 to C 20 Any of the alkyl groups.

4. A color light conversion material according to claim 3, characterized in that: The color light conversion material includes any one or a combination of at least two of the following compounds:

5. A color light conversion film, characterized in that: The raw materials for preparing the color light conversion adhesive film include the color light conversion material and resin as described in any one of claims 1 to 4.

6. The color conversion adhesive film according to claim 5, characterized in that: The mass percentage of the color light conversion material in the preparation raw materials is 0.001-3%.

7. The color conversion adhesive film according to claim 5, characterized in that: The resin includes any one of polyvinyl acetate, polyethylene-octene copolymer, polyvinyl butyral, hot-melt polyolefin particles or thermoplastic polyurethane, or a combination of at least two thereof.

8. The color conversion adhesive film according to claim 5, characterized in that: The raw materials for preparing the light conversion adhesive film also include any one or a combination of at least two of a main cross-linking agent, an auxiliary cross-linking agent, a silane coupling agent, a tackifying aid or an inorganic powder; The main cross-linking agent forms CC bonds with the color conversion material through free radical coupling, thereby grafting the color conversion material onto the color conversion adhesive film, and is used to efficiently fix the target molecule onto the color conversion adhesive film.

9. A photovoltaic module, characterized in that The photovoltaic module comprises the color conversion adhesive film and a battery as described in any one of claims 5 to 9.

10. The photovoltaic module according to claim 9, characterized in that: The cell includes any one or a combination of at least two of an indium gallium arsenide solar cell, an organic solar cell, a perovskite solar cell, a cadmium sulfide / cadmium telluride solar cell, an amorphous silicon solar cell, a microcrystalline silicon solar cell, and a crystalline silicon solar cell.

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