Gain method and gain structure for photoelectric conversion efficiency of solar panel

Abstract

The invention discloses a gain method and a gain structure for photoelectric conversion efficiency of a solar panel, the gain method is applied to the solar panel, and at least one light energy gain layer is combined on the surface of the solar panel. The light energy gain layer is of a layered three-dimensional conductive structure formed by uniformly mixing a plurality of conductive carbon-based materials and fluorescent materials on an acceptable transparent carrier, the conductive carbon-based materials are of a two-dimensional structure, the average size of the conductive carbon-based materials and the fluorescent materials is smaller than micrometers, and the transparent carrier is made of transparent thermoplastic plastics. Therefore, invisible light of incident light sources with different wavelengths in sunlight can be effectively absorbed, and visible light is re-radiated from the broadband absorbed incident light sources, so that heat energy can be converted into light energy, light energy entering the solar panel is increased and converted into electric energy, heat energy can be absorbed and converted into electric energy, and the effect of waste heat power generation can be achieved. And the electric energy efficiency of the solar panel is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar cells, and specifically relates to a method and structure for increasing the photoelectric conversion efficiency of a solar panel, which can increase the available power generation time of the solar panel and absorb heat energy to convert it into electrical energy, thereby effectively improving the photoelectric conversion efficiency and power generation efficiency. Background Art

[0002] Due to the increasingly serious environmental problems such as energy shortage and greenhouse effect, countries are currently actively developing various possible alternative energy sources, especially solar power generation, which is green energy, which is the most valued by all walks of life. Solar panels mainly use solar cells to convert solar energy into electrical energy. Semiconductor components usually adopt pn interface form, and their basic structure is the same as diodes. The power generation principle of solar cells is to use the photovoltaic effect to convert light energy into electrical energy for use. However, the power generation efficiency of solar cells known at present is not ideal. For the most widely used single-crystal silicon and polycrystalline silicon solar cell modules, their power generation efficiency is about 15%. This is mainly because the energy distribution of the sunlight spectrum can be divided into three blocks, of which visible light accounts for about 47%, while ultraviolet light and infrared light account for about 53%. In addition, the visible light that can be absorbed and converted is limited by the intensity and time of sunlight, so it can only convert 15% of sunlight into usable electrical energy, and the remaining 85% of sunlight will be wasted or become useless heat energy.

[0003] Therefore, the development direction of solar cells in existing solar panels has always been to improve their photoelectric conversion efficiency as the main goal. For example, in the technical solutions that achieve the above purpose through structural design, such as the sun-tracking type and solar panels that track the best sunlight position to improve the light collection effect, the concentrated solar panels are composed of a solar panel. However, the structural changes of the above solar panels have the disadvantages of complex structure and heavy weight. Not only are they not easy to assemble, but they also require regular maintenance, which leads to a significant increase in the cost of the overall solar cell and also increases the overall volume. In addition, in the technical solutions that use or incorporate new materials to achieve the above purpose, such as III-V multi-interface solar cells (III-V Multi junction SolarCells), they have direct band gap characteristics and have high light absorption and high photoelectric conversion efficiency, and can be thinned and have the advantages of temperature stability during high-temperature operation. However, these solar cells that introduce new materials make the process of connecting equipment and components more complicated, which in turn causes a decrease in process yield and an increase in manufacturing costs.

[0004] On the other hand, today's solar cells are as afraid of heat as general electronic devices. The higher the temperature of the working environment, the lower the power generation efficiency. Previous MIT research has pointed out that for every 1 degree Celsius increase in temperature, the average power generation of solar cells decreases by 0.45%. Therefore, continued high temperatures will not only create power generation obstacles, but also shorten the service life of solar cells.

[0005] In short, existing solar panels cannot effectively increase the proportion of sunlight converted into usable electrical energy, nor can they effectively extend the power generation time of solar panels, regardless of changing the external structure or the materials of the solar cells therein. At the same time, they are more likely to reduce power generation due to rising temperatures. Therefore, how to solve the aforementioned technical problems has become a topic that urgently needs to be explored in this field. Summary of the invention

[0006] Therefore, the main purpose of the present invention is to provide a method and structure for increasing the photoelectric conversion efficiency of a solar panel, so as to absorb incident light waves of different wavelengths of sunlight to improve the power generation efficiency of the solar panel.

[0007] A secondary purpose of the present invention is to provide a gain method and gain structure for the photoelectric conversion efficiency of a solar panel, which can convert the aforementioned broadband light source energy into visible light that can be absorbed by the solar panel, and transmit the energy to the solar panel in the form of radiation, thereby further improving the power generation efficiency of the solar panel.

[0008] Furthermore, another main purpose of the present invention is to provide a method and structure for increasing the photoelectric conversion efficiency of a solar panel, which can release radiant heat current to cool down after absorbing light and heating up, thereby alleviating the power generation obstacles of the solar panel and converting the absorbed heat energy into electrical energy to achieve the effect of waste heat power generation.

[0009] Technical solution: A method for increasing the photoelectric conversion efficiency of a solar panel, which is applied to a solar panel having a first surface corresponding to sunlight, a second surface facing away from sunlight, and a plurality of side surfaces surrounding the first surface and the second surface, and at least one light energy gain layer is stacked and combined on one or more of the first surface, the second surface, and the side surfaces of the solar panel;

[0010] The light energy gain layer is a layered three-dimensional conductive structure composed of multiple conductive carbon-based materials and fluorescent materials uniformly mixed in an acceptable transparent carrier, wherein the conductive carbon-based material is a two-dimensional structure, and the average size of the conductive carbon-based material and the fluorescent material is less than microns, and the transparent carrier is a transparent thermoplastic plastic.

[0011] Furthermore, the light energy gain layer is bonded to the solar panel by printing, coating or forming a film structure and adhering.

[0012] Furthermore, the conductive carbon-based material is selected from one or more of graphite, graphene, graphyne, carbon nanotubes, carbon fiber, and diamond.

[0013] Furthermore, the fluorescent material is selected from one or more of oxidation fluorescent powder, sulfide fluorescent powder, molybdate fluorescent powder, rare earth ion fluorescent powder and organic fluorescent powder.

[0014] Furthermore, the transparent carrier is selected from one or more of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

[0015] By this, the gain structure and method of the photovoltaic conversion efficiency of the solar panel of the present invention is used to set at least one light energy gain layer on the solar panel. The light energy gain layer is a three-dimensional conductive structure containing multiple conductive carbon-based materials and fluorescent materials uniformly mixed in an acceptable transparent carrier, and can effectively absorb invisible light of incident light sources of different wavelengths in sunlight, and re-radiate the aforementioned broadband absorbed incident light source as visible light, thereby realizing the conversion of heat energy into light energy, increasing the light energy entering the solar cell layer of the solar panel and converting it into electrical energy. Moreover, due to the micro-light power generation, the power generation time of the solar panel can be effectively extended, and heat energy can be absorbed to convert electrical energy, and the effect of waste heat power generation can be achieved, so the efficiency of the solar panel in converting sunlight absorption into electrical energy is greatly improved. At the same time, the light energy gain layer does not use expensive special materials, and the production process is simple and low-cost. It is combined with the solar panel by printing or coating or forming a film-like structure adhesive, etc., and the assembly and processing are easy and low-cost, which can enhance its practicality, greatly improve its added value, and enhance its economic benefits.

[0016] In order to enable those skilled in the art to further understand the composition, features and other purposes of the present invention, the preferred embodiments of the present invention are given below and described in detail with reference to the accompanying drawings, so that those familiar with the technical field can implement them. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : A schematic three-dimensional appearance diagram of the first embodiment of the gain structure of the present invention.

[0018] Figure 2 : A three-dimensional exploded schematic diagram of the first embodiment of the gain structure of the present invention is used to illustrate the state of each layer structure and its relative relationship.

[0019] Figure 3 : A side cross-sectional schematic diagram of the first embodiment of the gain structure of the present invention is used to illustrate the relative relationship between its various layer structures.

[0020] Figure 4: A side cross-sectional schematic diagram of a second embodiment of the gain structure of the present invention is provided to illustrate the relative relationship between its various layer structures.

[0021] Figure 5 : A side cross-sectional schematic diagram of the third embodiment of the gain structure of the present invention is used to illustrate the relative relationship of its various layer structures.

[0022] Figure 6 : A side cross-sectional schematic diagram of a fourth embodiment of a gain structure of the present invention is provided to illustrate the relative relationship of its various structural layers.

[0023] Figure 7 : A side cross-sectional schematic diagram of the fifth embodiment of the gain structure of the present invention is used to illustrate the relative relationship of its various layer structures.

[0024] Figure 8 : A side cross-sectional schematic diagram of a sixth embodiment of the gain structure of the present invention is provided to illustrate the relative relationship of its various structural layers.

[0025] Fig. 9 : A side cross-sectional schematic diagram of the seventh embodiment of the gain structure of the present invention is used to illustrate the relative relationship between its various layer structures.

[0026] Fig.10 : A side cross-sectional schematic diagram of an eighth embodiment of the gain structure of the present invention is provided to illustrate the relative relationship of its various structural layers.

[0027] Fig.11 : A side cross-sectional schematic diagram of a ninth embodiment of the gain structure of the present invention is provided to illustrate the relative relationship of its various structural layers.

[0028] Fig.12 : A side cross-sectional schematic diagram of the tenth embodiment of the gain structure of the present invention is used to illustrate the relative relationship of its various layer structures.

[0029] Fig.13 : A side cross-sectional schematic diagram of the eleventh embodiment of the gain structure of the present invention is used to illustrate the relative relationship of its various layer structures.

[0030] Fig.14 : A side cross-sectional schematic diagram of the twelfth embodiment of the gain structure of the present invention is used to illustrate the relative relationship of its various layer structures.

[0031] in:

[0032]

[0033] Specific implementation method:

[0034] The technical content of the present invention is explained below by means of specific embodiments, so that those skilled in the art can easily understand the advantages and effects of the present invention from the contents disclosed in this specification. However, the present invention can also be implemented or applied by means of other different embodiments. Therefore, in the specific embodiments of the present invention and its components, all references to the front and back, left and right, top and bottom, upper and lower parts, and horizontal and vertical are only used for the convenience of description, and do not limit the present invention, nor limit its components to any position or spatial direction. The dimensions specified in the drawings and the specification can be changed according to the design and requirements of the specific embodiments of the present invention without leaving the scope of the patent application of the present invention.

[0035] A method for increasing the photoelectric conversion efficiency of a solar panel is applied to a solar panel. The method uses a plurality of micronized two-dimensional conductive carbon-based materials mixed with fluorescent materials to be evenly distributed in the middle of a transparent carrier to form a layered three-dimensional conductive structure. The resonance effect of the three-dimensional conductive structure with closely spaced distances is used to greatly increase the broadband sunlight absorption performance for incident light waves of sunlight of different wavelengths. The absorption spectrum of the three-dimensional conductive structure is insensitive to changes in the incident angle. Even if the incident angle changes significantly, the three-dimensional conductive structure still has good broadband light absorption performance, so that the solar panel can greatly improve its power generation efficiency.

[0036] like Figure 1-3 , as shown, a gain structure of the photovoltaic conversion efficiency of a solar panel, which is provided with at least one light energy gain layer 200 on a solar panel 100, wherein the solar panel 100 has:

[0037] A first side 101 corresponding to sunlight;

[0038] a second side 102 facing away from sunlight, and

[0039] A plurality of side surfaces 103 surrounding the first surface 101 and the second surface 102, and the solar panel 100 is composed of a glass layer 10, a first packaging layer 20, a solar cell layer 30, a second packaging layer 40 and a back sheet layer 50 stacked from the front side (corresponding to sunlight) to the back side (corresponding to sunlight);

[0040] The preferred embodiment of the present invention is as follows Figure 1-3 As shown, the light energy gain layer 200 is bonded to a surface of the glass layer 10 corresponding to the first surface 101 of the solar panel 100 by printing, coating, or forming a film-like structure and adhering, and the light energy gain layer 200 is a three-dimensional conductive structure composed of a plurality of conductive carbon-based materials 201 and fluorescent materials 202 uniformly mixed in an acceptable transparent carrier 205, wherein:

[0041] The conductive carbon-based material 201 is selected from one or more of graphite, graphene, graphyne, carbon nanotubes, carbon fiber, and diamond;

[0042] The conductive carbon-based material 201 is a two-dimensional structure.

[0043] The fluorescent material 202 is selected from one or more of oxidized fluorescent powder, sulfide fluorescent powder, molybdate fluorescent powder, rare earth ion fluorescent powder, and organic fluorescent powder, and the average size of the conductive carbon-based material 201 and the fluorescent material 202 is preferably between micrometers and nanometers.

[0044] The transparent carrier 205 is selected from transparent thermoplastic plastics, including polyethylene (PE), polypropylene (PP), polystyrene (PS), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), nylon (Nylon), polycarbonate (PC), ethylene-vinyl acetate copolymer (EVA), and acrylic resin.

[0045] The light energy gain layer 200 can use the conductive carbon-based material 201 to increase the light absorption bandwidth and convert thermal energy. For example, graphene is a two-dimensional material composed of a single layer of carbon atoms, and the graphene of the conductive carbon-based material 201 has excellent thermal conductivity, which can effectively conduct and convert thermal energy into electrical energy. The light energy gain layer 200 can use the fluorescent material 202 to absorb light and emit light. The fluorescent material 202 can further absorb invisible light such as infrared or ultraviolet rays from incident light sources of different wavelengths in sunlight, and re-radiate the aforementioned broadband absorbed incident light source into visible light through the fluorescent material 202, thereby realizing the conversion of thermal energy into light energy. The broadband wavelength light energy is transmitted to the solar cell layer 30 of the solar panel 100 in a radiation conduction manner through the transparent carrier 205, greatly improving the efficiency of the solar panel 100 in converting sunlight absorption into electrical energy.

[0046] Thereby, incident light waves of different wavelengths of sunlight can be absorbed, and the broadband light source energy can be converted into visible light that can be absorbed by the solar panel, so as to improve the power generation efficiency of the solar panel and form a gain structure of the photoelectric conversion efficiency of the solar panel.

[0047] The gain structure of the photovoltaic conversion efficiency of the solar panel of the present invention is used in practice. Figure 1-3As shown, the solar panel 100 can use the conductive carbon-based material 201 of the light energy gain layer 200 to increase the light absorption bandwidth and convert heat energy, so as to effectively conduct and convert heat energy into electrical energy. At the same time, the light energy gain layer 200 uses the fluorescent material 202 to absorb invisible light such as infrared or ultraviolet rays of incident light sources with different wavelengths in sunlight, and re-radiates the aforementioned broadband absorption incident light source as visible light through the fluorescent material 202, thereby realizing the conversion of heat energy into light energy, and the transparent carrier 205 introduces the light energy of such broadband wavelengths into the solar cell layer 30 of the solar panel 100 in a radiation conduction manner, so as to utilize the photovoltaic effect of the solar cell layer 30 to convert light energy into electrical energy, thereby greatly improving the efficiency of the solar panel 100 in converting sunlight absorption into electrical energy.

[0048] Thus, the present invention can utilize the three-dimensional conductive structure formed by the conductive carbon-based material 201, the fluorescent material 202 and the transparent carrier 205 in the light energy gain layer 200, and can fully absorb the ultraviolet light and infrared light that the solar cell layer 30 of the solar panel 100 originally cannot absorb, and convert them into visible light that the solar cell layer 30 can absorb. In addition, the three-dimensional conductive structure of the ultra-low impedance light energy gain layer 200 can absorb the energy of broadband light sources, and help the solar cell layer 30 utilize the broadband light source energy that it could not absorb originally, so that weaker sunlight can also be effectively utilized, thereby extending the effective range and time of the solar panel 100, and thus improving the power generation efficiency of the solar panel 100.

[0049] According to some embodiments, the light energy gain layer 200 may further be mixed with one or more of germanium compound powder and titanium compound powder to improve the power generation efficiency of the solar panel 100 .

[0050] The conductive carbon-based material 201 and the fluorescent material 202 in the light energy gain layer 200 are uniformly distributed in the film-shaped structure filled in the transparent carrier 205, wherein:

[0051] The content of the conductive carbon-based material 201 is 1.5% to 3.5% of the total weight of the light energy gain layer 200, and the content of the fluorescent material 202 is 0.005% to 0.025% of the total weight of the light energy gain layer 200. It not only has excellent light transmittance but also does not hinder the penetration of sunlight. The emitted visible light energy is also directly radiated to the solar cell layer 30 for power generation. At the same time, it can greatly improve its stability and durability, and effectively extend its service life.

[0052] In addition, the temperature of the solar panel 100 with the light energy gain layer 200 will rise when absorbing light, and the conductive carbon-based material 201 of the light energy gain layer 200 has the characteristic of cooling down after releasing the radiant heat current. When the solar panel 100 is directly irradiated by sunlight, the surface temperature can be reduced by 10 to 15 degrees Celsius, thereby alleviating the obstacle of high-temperature power generation of the solar panel 100. Not only can the service life of the solar panel 100 be increased, but also the performance of absorbing heat energy and converting it into electrical energy can produce the effect of waste heat power generation.

[0053] Table 1 below shows the performance of a conventional solar panel (not coated with EVA performance enhancer) and a solar panel 100 having a light energy gain layer 200 of the present invention (coated with EVA performance enhancer). 2 ), the test was conducted under the same day and the same sunshine time (using CIGS solar panel specifications: power generation power 120W, connected with fixed resistance: 20W, 100Ω, and measuring the voltage, current, and power of the two respectively. The efficiency improvement ratio of the solar panel 100 of the present invention can prove that the solar panel 100 with the light energy gain layer 200 of the present invention can not only increase the power generation efficiency under the same sunshine time, but also obtain better power generation under low light conditions, thereby extending its service life.

[0054] It can be seen from the following Table 1 that in the general effective solar power generation period (9:00 am to 17:00 pm), after 17 measurements, the power generation of the existing solar panel is 34.061 W, while the power generation of the solar panel 100 of the present invention is 43.192 W, and the power generation improvement rate of the solar panel of the present invention is 26.8%. In the dim light period of solar power generation (17:00 pm to 9:00 am), after 19 measurements, the power generation of the existing solar panel is 5.12 W, while the power generation of the solar panel 100 of the present invention is 9.157 W, and the power generation improvement rate of the solar panel of the present invention is 78.88%. In addition, the total improvement rate of the power generation of the solar panel 100 of the present invention throughout the day is 33.61%. Therefore, it can be proved that the solar panel 100 of the present invention with the light energy gain layer 200 can not only increase the power generation efficiency during the effective solar power generation time of the same day, but also obtain better power generation under dim light, so it can indeed extend its service life.

[0055] Table 1

[0056]

[0057]

[0058] The above-mentioned embodiments or drawings do not limit the implementation of the solar panel 100 of the present invention that can improve the power conversion efficiency. The light energy gain layer 200 can be printed or coated or formed into a film structure and bonded to the first packaging layer 20 (such as Figure 4 As shown), in the solar cell layer 30 (as Figure 5 As shown) and / or on the backplane layer 50 (as Figure 6 ) corresponds to a side surface of the first surface 101 of the solar panel 100.

[0059] According to some embodiments, the light energy gain layer 200 may also be disposed separately or simultaneously on the glass layer 10 (eg Figure 7 As shown), in the solar cell layer 30 (as Figure 8 ) corresponds to a side surface of the second surface 102 of the solar panel 100.

[0060] According to some embodiments, the light energy gain layer 200 may be further separately or simultaneously disposed on the side surfaces 103 (not shown) around the solar panel 100 .

[0061] Furthermore, according to some embodiments, the light energy gain layer 200 can be used to replace the glass layer 10 (eg Fig. 9 As shown), the first packaging layer 20 (as Fig.10 As shown), the second encapsulation layer 40 (as Fig.11 as shown) and / or backplane layer 50 (as shown in Fig.12 shown).

[0062] like Fig.13 As shown, the solar cell layer 30 of the solar panel 100 can be formed on a transparent glass, and at least one light energy gain layer 200 is respectively combined on the first surface 101 and the second surface 102 of the solar panel 100 to increase the power generation efficiency of the solar cell.

[0063] like Fig.14 As shown, the solar cell layer 30 can be directly formed on the surface of a light energy gain layer 200, and the other side surface of the solar cell layer 30 can be another light energy gain layer 200 or the first packaging layer 20, so that the solar panel 100 can further become a bendable flexible structure, and the light energy gain layer 200 can be used to replace window glass, and can be used as a curtain or window-type solar panel 100. And the aforementioned light energy gain layer 200 can be composed of a multi-layer stack, which can further improve the power generation efficiency of the solar panel 100. Therefore, any appropriate changes or modifications made by those with ordinary knowledge in the technical field should be regarded as not departing from the patent scope of the present invention.

[0064] As can be seen from the foregoing, the present invention utilizes at least one light energy gain layer 200 disposed on the solar panel 100. The light energy gain layer 200 is a three-dimensional conductive structure containing a plurality of conductive carbon-based materials 201 and fluorescent materials 202 uniformly mixed in an acceptable transparent carrier 205, and can effectively absorb the invisible light of incident light sources of different wavelengths in sunlight, and re-radiate the aforementioned broadband absorbed incident light source as visible light, thereby realizing the conversion of heat energy into light energy, increasing the amount of light energy entering the solar cell layer 30 of the solar panel 100 and converting it into electrical energy. Furthermore, due to the micro Photovoltaic power generation can effectively extend the power generation time of the solar panel 100, and can absorb heat energy to convert into electrical energy, thereby achieving the effect of waste heat power generation, thereby greatly improving the efficiency of the solar panel 100 in converting sunlight absorption into electrical energy. At the same time, the light energy gain layer 200 does not use expensive special materials, and the production process is simple and low in cost. It is combined with the solar panel 100 by printing or coating or forming a film structure adhesive, which is easy to assemble and process with low cost, greatly increasing its practicality. Furthermore, the aforementioned film structure adhesive is bonded with a non-conductive colloid.

[0065] The above describes the embodiments of the present invention in detail. However, the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A method for increasing the photoelectric conversion efficiency of a solar panel, characterized in that: The invention is applied to at least one surface of a solar panel that can guide sunlight into the panel. The gain method uses a plurality of micronized two-dimensional conductive carbon-based materials mixed with fluorescent materials to be evenly distributed in the middle of a transparent carrier to form a layered three-dimensional conductive structure. The resonance effect of the three-dimensional conductive structure with close spacing is used to increase the broadband sunlight absorption performance of the solar panel for incident light waves of sunlight of different wavelengths.

2. The gain structure of the photovoltaic conversion efficiency of the solar panel is characterized by: The invention is applied to a solar panel, wherein the solar panel has a first surface corresponding to sunlight, a second surface opposite to sunlight, and a plurality of side surfaces surrounding the first surface and the second surface, and at least one light energy gain layer is stacked and combined on one or more of the first surface, the second surface, and the side surfaces of the solar panel; The light energy gain layer is a layered three-dimensional conductive structure composed of multiple conductive carbon-based materials and fluorescent materials uniformly mixed in an acceptable transparent carrier. The conductive carbon-based material is a two-dimensional structure, and the average size of the conductive carbon-based material and the fluorescent material is below micrometers, and the transparent carrier is a transparent thermoplastic plastic.

3. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 2, characterized in that: The light energy gain layer is bonded to the solar panel by printing, coating or forming a film structure and adhering.

4. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 2, characterized in that: The conductive carbon-based material is selected from one or more of graphite, graphene, graphyne, carbon nanotubes, carbon fiber and diamond.

5. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 2, characterized in that: The fluorescent material is selected from one or more of oxidation fluorescent powder, sulfide fluorescent powder, molybdate fluorescent powder, rare earth ion fluorescent powder and organic fluorescent powder.

6. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 2, characterized in that: The transparent carrier is selected from one or more of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

7. A gain structure for the photovoltaic conversion efficiency of a solar panel, characterized in that: The invention is applied to a solar panel, wherein the solar panel has a first surface corresponding to sunlight, a second surface facing away from sunlight, and a plurality of side surfaces surrounding the first surface and the second surface, and the solar panel comprises at least a glass layer, a first packaging layer, a solar cell layer, and a second packaging layer stacked from the front side to the back side, and at least one light energy gain layer is combined with one or more of the glass layer, the first packaging layer, the solar cell layer, and the second packaging layer corresponding to the first surface, the second surface, and the side surface of the solar panel, or any two or more thereof; The light energy gain layer is a layered three-dimensional conductive structure composed of multiple conductive carbon-based materials and fluorescent materials uniformly mixed in an acceptable transparent carrier. The conductive carbon-based material is a two-dimensional structure, and the average size of the conductive carbon-based material and the fluorescent material is below micrometers. The transparent carrier is a transparent thermoplastic plastic.

8. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 7, characterized in that: The light energy gain layer is bonded to the solar panel by printing, coating or forming a film structure and adhering.

9. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 7, characterized in that: The conductive carbon-based material is selected from one or more of graphite, graphene, graphyne, carbon nanotubes, carbon fiber and diamond.

10. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 7, characterized in that: The fluorescent material is selected from one or more of oxidation fluorescent powder, sulfide fluorescent powder, molybdate fluorescent powder, rare earth ion fluorescent powder and organic fluorescent powder.

11. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 7, characterized in that: The transparent carrier is selected from one or more of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

12. A gain structure for the photovoltaic conversion efficiency of a solar panel, characterized in that: The invention is applied to a solar panel, wherein the solar panel has a first surface corresponding to sunlight, a second surface opposite to sunlight, and a plurality of side surfaces surrounding the first surface and the second surface. The solar panel comprises at least one solar cell layer from the front surface to the back surface, and at least one light energy gain layer is combined with the solar cell layer corresponding to one or more of the first surface, the second surface, and the side surface of the solar panel; The light energy gain layer is a layered three-dimensional conductive structure composed of multiple conductive carbon-based materials and fluorescent materials uniformly mixed in an acceptable transparent carrier. The conductive carbon-based material is a two-dimensional structure, and the average size of the conductive carbon-based material and the fluorescent material is below micrometers, and the transparent carrier is a transparent thermoplastic plastic.

13. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 12, characterized in that: The light energy gain layer is bonded to the solar panel by printing, coating or forming a film structure and adhering.

14. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 12, characterized in that: The conductive carbon-based material is selected from one or more of graphite, graphene, graphyne, carbon nanotubes, carbon fiber and diamond.

15. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 12, characterized in that: The fluorescent material is selected from one or more of oxidation fluorescent powder, sulfide fluorescent powder, molybdate fluorescent powder, rare earth ion fluorescent powder and organic fluorescent powder.

16. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 12, characterized in that: The transparent carrier is selected from one or more of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

17. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 12, characterized in that: The two side surfaces of the solar cell layer are respectively combined with a light energy gain layer and a first packaging layer, so that the solar panel becomes a bendable flexible structure.

18. The solar panel photoelectric conversion efficiency gain structure as claimed in claim 12, characterized in that: The light gain layer can be increased in thickness to replace window glass and used as a curtain or window type solar panel.

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