Method and structure for improving photoelectric conversion efficiency of solar panel

Abstract

To provide a method and a structure for improving the photoelectric conversion efficiency of a solar panel, which can increase the power generation efficiency of the solar panel by absorbing incident light waves having different wavelengths of sunlight.SOLUTION: A method and a structure for improving the photoelectric conversion efficiency of a solar panel according to the present invention can be applied to a solar panel, and at least one optical energy gain layer is bonded to a surface of the solar panel, and the optical energy gain layer is a layered three-dimensional conductive structure formed by mixing a plurality of conductive carbon-based materials and phosphor materials and uniformly distributing them on a transparent carrier, the conductive carbon-based material has a two-dimensional structure, the conductive carbon-based material and the phosphor material have average dimensions of less than a micron, and the transparent carrier is selected from transparent thermoplastics.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to solar cells, and in particular to a method and structure for improving the photoelectric conversion efficiency of a solar panel that can increase the usable time after power generation by a solar panel, absorb thermal energy and convert it into electrical energy, and effectively improve photoelectric conversion efficiency and power generation efficiency. [Background technology]

[0002] Due to the worsening of environmental problems such as energy shortages and the greenhouse effect, various countries are actively researching and developing alternative energy sources. In particular, solar power generation, which is a form of green energy, is attracting the most attention from all walks of life. Solar panels mainly use the solar cells in them to convert solar energy into electrical energy, and the semiconductor elements are usually in the form of pn junctions, with the same basic structure as diodes. The principle of power generation in solar cells is to convert light energy into electrical energy using the photovoltaic effect. However, the power generation efficiency of conventional solar cells is poor. For example, the most widely used monocrystalline and polycrystalline silicon solar cell modules have a power generation efficiency of about 15%. The main reason for this is that the energy distribution of the solar spectrum is divided into three blocks, of which visible light accounts for approximately 47%, ultraviolet light and infrared light account for approximately 53%, and the amount of visible light that can be absorbed and converted is limited by the intensity and duration of sunlight, so that only 15% of sunlight can be converted into electrical energy and used, and the remaining 85% of sunlight is either wasted or becomes wasted thermal energy.

[0003] Therefore, the current development direction of solar cells in solar panels is all aimed at high photoelectric conversion efficiency. For example, among those that achieve the goal through structural design, there are solar tracking types that track the optimal position of sunlight and concentrating types that improve the position of sunlight. However, such solar panels have a complex structure, are heavy and difficult to assemble, and require regular repairs, which significantly increases the overall cost of the solar cells and the overall volume. On the other hand, among those that achieve the goal by using or incorporating new materials, there are III-V multijunction solar cells, which have the characteristics of direct bandgap, high light absorption rate and high photoelectric conversion efficiency, and have the advantages of being able to be thin-filmed and temperature stability for high-temperature operation. In addition, these solar cells that introduce new materials have complex processes due to the equipment and elements connected, which increases the process defect rate and increases the manufacturing cost.

[0004] On the other hand, conventional solar cells, like general electronic devices, lose efficiency when exposed to high temperatures, and the higher the temperature of the environment in which they are used, the worse their power efficiency becomes. According to research by the Massachusetts Institute of Technology, the average power of a solar cell decreases by 0.45% for every 1 degree Celsius increase in temperature, so if high temperatures persist, it becomes difficult to generate power. Not only that, but the lifespan of the solar cell also becomes shorter. In short, conventional solar panels have the problem that even if the external structure or the material of the solar cells therein is changed, it is not possible to effectively increase the rate at which sunlight is converted into usable electrical energy, nor is it possible to effectively extend the power generation operating time of the solar panel, and the generated power is easily reduced as the temperature increases. Patent Document 1 discloses a technique for improving power generation efficiency by providing a phosphor layer. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2006-210229 A Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE PRESENT EMBODIMENT The main objective of the present invention is to provide a method and structure for improving the photoelectric conversion efficiency of a solar panel, which can increase the power generation efficiency of the solar panel by absorbing incident light waves with different wavelengths of sunlight.

[0007] Another object of the present invention is to provide a method and structure for improving the photoelectric conversion efficiency of a solar panel, which converts a wide range of light source energy into visible light that can be absorbed by the solar panel and transfers the energy to the solar panel in the form of radiation, thereby further improving the power generation efficiency of the solar panel.

[0008] Yet another object of the present invention is to provide a method and structure for improving the photoelectric conversion efficiency of a solar panel, which can absorb light and heat up, then release radiant thermal current to cool down, thereby mitigating power generation problems in the solar panel, and convert the absorbed thermal energy into electrical energy, thereby achieving the effect of waste heat power generation. [Means for solving the problem]

[0009] The method for improving the photoelectric conversion efficiency of a solar panel according to the present invention is applicable to a solar panel, and can irradiate sunlight onto at least one surface. A layered three-dimensional conductive structure is formed by uniformly distributing a mixture of a plurality of finely divided two-dimensional conductive carbon-based materials and phosphor materials on a transparent carrier, and the three-dimensional conductive structure exerts a close and differently spaced resonance effect on the incident light waves of sunlight having different wavelengths, thereby increasing the solar light absorption function of the solar panel over a wide range.

[0010] The solar panel photoelectric conversion efficiency improvement structure according to the present invention is applicable to a solar panel, the solar panel having a first surface facing the sun, a second surface on the opposite side to the sun, and a plurality of side surfaces between the first surface and the second surface, and at least one light energy gain layer is laminated on one or more of the first surface, the second surface, and the side surfaces of the solar panel; The optical energy gain layer is a layered three-dimensional conductive structure formed by mixing multiple conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, the conductive carbon-based materials having a two-dimensional structure, the conductive carbon-based materials and the phosphor materials having average dimensions of less than a micron, and the transparent carrier being selected from transparent thermoplastics.

[0011] According to the solar panel photoelectric conversion efficiency improvement structure of the present invention, it is applicable to a solar panel, the solar panel has a first surface facing the sun, a second surface opposite to the sun, and a plurality of side surfaces between the first surface and the second surface, the solar panel is configured by stacking at least a glass layer, a first encapsulation layer, a solar cell layer, and a second encapsulation layer in order from the front surface to the back surface, one or any two or more of the glass layer, the first encapsulation layer, the solar cell layer, and the second encapsulation layer correspond to one or any two or more of the first surface, the second surface, and the side surfaces of the solar panel, and at least one light energy gain layer is bonded to the solar panel, The optical energy gain layer is a layered three-dimensional conductive structure formed by mixing multiple conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, the conductive carbon-based materials having a two-dimensional structure, the conductive carbon-based materials and the phosphor materials having average dimensions of less than a micron, and the transparent carrier being selected from transparent thermoplastics.

[0012] According to the solar panel photoelectric conversion efficiency improvement structure of the present invention, it is applicable to a solar panel, the solar panel has a first surface facing the sun, a second surface opposite to the sun, and a plurality of side surfaces between the first surface and the second surface, the solar panel is configured to include at least one solar cell layer from the front surface to the back surface, the solar cell layer corresponds to one or any two or more of the first surface, the second surface, and the side surfaces of the solar panel, and is coupled with at least one light energy gain layer; The optical energy gain layer is a layered three-dimensional conductive structure formed by mixing multiple conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, the conductive carbon-based materials having a two-dimensional structure, the conductive carbon-based materials and the phosphor materials having average dimensions of less than a micron, and the transparent carrier being selected from transparent thermoplastics. Effect of the Invention

[0013] The method for improving the photoelectric conversion efficiency of a solar panel and the structure thereof according to the present invention have the following advantages.

[0014] The solar panel is provided with at least one light energy gain layer, which is a three-dimensional conductive structure formed by mixing a plurality of conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, and can effectively absorb invisible light from incident light sources with different wavelengths in sunlight, and can convert thermal energy into light energy by emitting the absorbed wide range of incident light sources as visible light again, thereby increasing the amount of light energy entering the solar cell layer of the solar panel and converting it into electrical energy. In addition, since it generates power with faint light, it can effectively extend the operating time of the solar panel power generation, absorb thermal energy and convert it into electrical energy, and can obtain the effect of waste heat power generation. Therefore, the solar panel can greatly improve the efficiency of absorbing solar light and converting it into electrical energy, and the light energy gain layer does not require expensive and special materials, the production process is simple, the production equipment is cheap, and it is attached to the solar panel by a method such as printing, coating, or forming a film-like structure and adhering, so that the assembly process is easy and the cost is low. This can greatly increase the added value. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing a first embodiment of a structure according to the present invention. [Diagram 2] FIG. 1 is an exploded perspective view showing a first embodiment of a structure according to the present invention, illustrating the structure of each layer and its relative relationships. [Diagram 3] FIG. 1 is a side cross-sectional view showing a first embodiment of a structure according to the present invention, illustrating the relative relationships between the layers of the structure. [Figure 4] FIG. 4 is a side cross-sectional view showing a second embodiment of a structure according to the present invention, illustrating the relative relationship between the layers of the structure. [Diagram 5] FIG. 11 is a side cross-sectional view showing a third embodiment of a structure according to the present invention, illustrating the relative relationship between the layers of the structure. [Figure 6] FIG. 11 is a side cross-sectional view showing a fourth embodiment of a structure according to the present invention, illustrating the relative relationship between the structures of the individual layers. [Figure 7] FIG. 13 is a side cross-sectional view showing a fifth embodiment of a structure according to the present invention, illustrating the relative relationship between the layers of the structure. [Figure 8] FIG. 13 is a side cross-sectional view showing a sixth embodiment of a structure according to the present invention, illustrating the relative relationship of the structures of the individual layers. [Figure 9] FIG. 13 is a side cross-sectional view showing a seventh embodiment of a structure according to the present invention, illustrating the relative relationship of the structures of the individual layers. [Figure 10] FIG. 13 is a side cross-sectional view showing an eighth embodiment of a structure according to the present invention, illustrating the relative relationship between the layers of the structure. [Figure 11] FIG. 13 is a side cross-sectional view showing a ninth embodiment of a structure according to the present invention, illustrating the relative relationship of the structures of the individual layers. [Figure 12] FIG. 23 is a side cross-sectional view showing a tenth embodiment of the structure according to the present invention, illustrating the relative relationship between the structures of the individual layers. [Figure 13] FIG. 15 is a side cross-sectional view showing an eleventh embodiment of the structure according to the present invention, illustrating the relative relationship of the structures of the respective layers. [Figure 14] FIG. 23 is a side cross-sectional view showing a twelfth embodiment of the structure according to the present invention, illustrating the relative relationship of the structures of the individual layers. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0017] The method for improving the photoelectric conversion efficiency of a solar panel and its structure according to the present invention will be described by way of a specific embodiment, so that a person familiar with the technology can easily understand the advantages and effects of the present invention from the contents described in this specification. However, the present invention can of course have other embodiments. Therefore, in the specific embodiment of the present invention and its components in the accompanying drawings, all references to front, back, left and right, up and down, upper and lower, and horizontal and vertical are for convenience of description only and are not intended. This is intended to limit the scope of the present invention and is not intended to limit the components to any position or spatial direction. The dimensions specified in the drawings and specification can be changed according to the design and requirements of the specific embodiment of the present invention without departing from the scope of the patent application of the present invention.

[0018] The method for improving the photoelectric conversion efficiency of a solar panel according to the present invention is applicable to a solar panel, and a layered three-dimensional conductive structure is formed by mixing a plurality of finely divided two-dimensional conductive carbon-based materials and phosphor materials and uniformly distributing them on a transparent carrier, and by utilizing the close and differently spaced resonance effect of the three-dimensional conductive structure, the function of absorbing a wide range of sunlight is significantly increased for incident light waves of sunlight having different wavelengths. Furthermore, the absorption spectrum of the three-dimensional conductive structure is not affected by changes in the incident angle, and even if the incident angle changes significantly, good wide-range light absorption performance can be maintained, thereby significantly improving the power generation efficiency of the solar panel.

[0019] As shown in Figures 1 to 3, the solar panel photoelectric conversion efficiency improving structure according to the present invention includes at least one light energy gain layer 200 provided on a solar panel 100. The solar panel 100 has a first surface 101 facing sunlight, a second surface 102 on the opposite side to the sunlight, and a number of side surfaces 103 between the first surface 101 and the second surface 102. The solar panel 100 is configured by stacking a glass layer 10, a first encapsulation layer 20, a solar cell layer 30, a second encapsulation layer 40, and a backplane layer 50 in this order from the front surface facing sunlight to the back surface on the opposite side to sunlight.

[0020] In addition, in the configuration according to the embodiment of the present invention, as shown in FIG. 1 to FIG. 3, the optical energy gain layer 200 is bonded to the glass layer 10 by printing, coating, forming a film-like structure and adhering, etc., and corresponds to one side of the first surface 101 of the solar panel 100. The optical energy gain layer 200 is a three-dimensional conductive structure formed by mixing a plurality of conductive carbon-based materials 201 and phosphor materials 202 and distributing them uniformly on a transparent carrier 205. The conductive carbon-based material 201 is selected from one or a combination of graphite, graphene, graphene, carbon nanotubes, carbon fibers, and diamond. The conductive carbon-based material 201 has a two-dimensional structure. The phosphor material 202 is selected from one or a combination of oxide phosphors, sulfide phosphors, molybdate phosphors, rare earth ion phosphors, and organic phosphors. The average dimensions of the conductive carbon-based material 201 and the phosphor material 202 are preferably in the range of microns to nanometers (i.e., in the inset of FIG. 3, the average values ​​of the dimensions a and b are both in the range of 1 μm to 1 nm). The transparent carrier 205 is selected from transparent thermoplastics, namely, one or a combination of polyethylene (PE), polypropylene (PP), polystyrene (PS), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), nylon (Nylon), polycarbonate (PC), ethylene-vinyl acetate copolymer (EVA), and acrylic resin, but is not limited thereto.

[0021] The optical energy gain layer 200 increases the amount of absorption of a wide range of light rays by these conductive carbon-based materials 201 and converts them into thermal energy. For example, graphene is a two-dimensional material composed of a single layer of carbon atoms. The graphene of the conductive carbon-based material 201 has an extremely good thermal conductivity function and can effectively conduct thermal energy and convert it into electrical energy. The optical energy gain layer 200 can absorb and emit light rays by these phosphor materials 202. These phosphor materials 202 can further absorb invisible light (e.g., infrared light and ultraviolet light) of an incident light source having different wavelengths in sunlight, and radiate the wide range of the incident light absorbed by the phosphor material 202 as visible light, thereby realizing the conversion of thermal energy into optical energy. The transparent carrier 205 guides the optical energy of these wide range of wavelengths to the solar cell layer 30 of the solar panel 100 by radiation, so that the solar panel 100 can greatly improve the efficiency of absorbing solar light and converting it into electrical energy.

[0022] This allows incident light waves of different wavelengths of sunlight to be absorbed, and a wide range of the light source energy can be converted into visible light that can be absorbed by the solar panel, thereby improving the power generation efficiency of the solar panel.

[0023] In addition, when the solar panel photoelectric conversion efficiency improving structure according to the present invention is used, as shown in FIG. 1 to FIG. 3, the solar panel 100 can expand the range of light absorption and convert it into thermal energy by the conductive carbon-based material 201 of the optical energy gain layer 200, and thus can effectively conduct and convert the thermal energy into electrical energy. At the same time, the optical energy gain layer 200 can absorb invisible light (e.g. infrared light and ultraviolet light) of incident light sources having different wavelengths in the sunlight by the phosphor material 202, and radiate the wide range of the absorbed incident light source as visible light again by the phosphor material 202, thereby realizing the conversion of thermal energy into optical energy. The transparent carrier 205 introduces the optical energy having the wide range of wavelengths into the solar cell layer 30 of the solar panel 100 by radiation, and converts the optical energy into electrical energy by utilizing the photovoltaic effect of the solar cell layer 30. Therefore, the efficiency of the solar panel 100 in absorbing and converting solar light into electrical energy can be greatly improved.

[0024] Thus, according to the present invention, the three-dimensional conductive structure of the optical energy gain layer 200, which is composed of the conductive carbon-based material 201, the phosphor material 202, and the transparent carrier 205, can be used to fully absorb ultraviolet and infrared light that the solar cell layer 30 of the solar panel 100 cannot absorb, and convert it into visible light that the solar cell layer 30 can absorb. The three-dimensional conductive structure of the optical energy gain layer 200, which has ultra-low impedance, can absorb a wide range of light source energy, so that the solar cell layer 30 can absorb a wide range of light source energy that it could not absorb, and therefore even weak sunlight can be effectively utilized, and the operating range and time of the solar panel 100 can be extended, and the power generation efficiency of the solar panel 100 can be improved. In one embodiment, the optical energy gain layer 200 can further be mixed with either a germanium compound powder or a titanium compound powder, or a combination thereof. This can improve the power generation efficiency of the solar panel 100.

[0025] The conductive carbon-based material 201 and the phosphor material 202 in the optical energy gain layer 200 are filled so as to be uniformly distributed in the film-like structure of the transparent carrier 205. The content of the conductive carbon-based material 201 is 1.5% to 3.5% of the total weight of the optical energy gain layer 200, and the content of the phosphor material 202 is 0.005% to 0.025% of the total weight of the optical energy gain layer 200, so that not only is it excellent in light transparency, but it does not prevent the transmission of sunlight, and the generated visible light energy is directly incident on the solar cell layer 30 to generate electricity. This can significantly improve its stability and durability, and can also effectively extend its lifespan.

[0026] Meanwhile, the solar panel 100 having the optical energy gain layer 200 has a property that the temperature rises when it absorbs light rays, and the conductive carbon-based material 201 of the optical energy gain layer 200 has a property of dropping in temperature after emitting a radiant heat current. By utilizing this property, when the solar light is directly irradiated onto the solar panel 100, the surface temperature drops to about 10 to 15 degrees Celsius, so that it is possible to mitigate power generation failure caused by high temperatures of the solar panel 100. This makes it possible to extend the life of the solar panel 100, and also obtain the effect of waste heat power generation since the solar panel 100 has a function of absorbing thermal energy and converting it into electrical energy.

[0027] Table 1 shows the results of a comparative experiment conducted on a conventional solar panel and a solar panel 100 having a light energy gain layer 200 according to the present invention. Both panels have the same dimensions (105x54cm). 2 ] on the same day under the same sunshine hours and other conditions (CIGS solar panel specifications used: power generation power of 120W, connected to a fixed resistance (20W, 100Ω)) and measuring the voltage, current, and power of both. As a result, according to the efficiency improvement ratio of the solar panel 100 of the present invention, it is proven that the solar panel 100 having the light energy gain layer 200 of the present invention not only has improved power supply efficiency under the same sunshine hours compared to the conventional solar panel, but also provides better power supply in dark places, thereby extending the usage time.

[0028] As can be seen from Table 1, after 17 measurements during the effective power generation period of solar energy (9:00 am to 5:00 pm), the power generation of the conventional solar panel is 34.061 W, while the power generation of the solar panel 100 according to the present invention is 43.192 W, so the improvement rate of the power generation of the solar panel according to the present invention is 26.8%. After 19 measurements during the low light period of solar energy generation (5:00 pm to 9:00 am), the power generation of the conventional solar panel is 5.12 W, while the power generation of the solar panel 100 according to the present invention is 9.157 W, so the improvement rate of the power generation of the solar panel according to the present invention is 78.88%. In addition, the total improvement rate of the power generation of the solar panel 100 according to the present invention throughout the day is 33.61%. It is proved that the solar panel 100 having the light energy gain layer 200 according to the present invention can not only improve the power generation efficiency due to the effective power generation time of solar energy on the same day, but also obtain better power generation even in low light places, so that the usage time can be significantly extended.

[0029] [Table 1]

[0030] The above embodiments and drawings are not intended to limit the embodiment of the solar panel 100 with improved electrical energy conversion efficiency according to the present invention, and the optical energy gain layer 200 is bonded to one side of the first encapsulation layer 20 shown in FIG. 4, the solar cell layer 30 shown in FIG. 5, and / or the backplane layer 50 shown in FIG. 6, which corresponds to the first surface 101 of the solar panel 100, by printing, coating, forming into a film-like structure and adhering, etc. In another embodiment, the optical energy gain layer 200 may be provided on the glass layer 10 shown in FIG. 7 and one side of the solar cell layer 30 shown in FIG. 8, which corresponds to the second surface 102 of the solar panel 100, respectively or simultaneously. In one embodiment, the optical energy gain layer 200 may also be provided on the peripheral side 103 (not shown) of the solar panel 100, respectively or simultaneously. In some embodiments, the optical energy gain layer 200 can replace the glass layer 10 shown in FIG. 9, the first encapsulation layer 20 shown in FIG. 10, the second encapsulation layer 40 shown in FIG. 11, and / or the backplane layer 50 shown in FIG. 12. As shown in FIG. 13, the solar cell layer 30 of the solar panel 100 is formed on a transparent glass, and at least one optical energy gain layer 200 can be bonded to the first surface 101 and the second surface 102 of the solar panel 100, respectively, so as to improve the power generation efficiency of the solar cell. As shown in FIG. 14, the solar cell layer 30 can be directly formed on the surface of the optical energy gain layer 200, and the other surface of the solar cell layer 30 is another optical energy gain layer 200 or the first encapsulation layer 20, so that the solar panel 100 has a flexible structure that can be bent. The optical energy gain layer 200 can replace the window glass and be used as a curtain or window-type solar panel 100. In addition, since the optical energy gain layer 200 has a multi-layer laminated structure, it can further improve the power generation efficiency of the solar panel 100. As such, any appropriate changes or modifications made by a person having common knowledge in the technical field should be deemed not to deviate from the patent scope of the present invention.

[0031] As can be seen from the above description, the method and structure for improving the photoelectric conversion efficiency of a solar panel according to the present invention provides at least one light energy gain layer 200 on a solar panel 100, and these light energy gain layers 200 have a three-dimensional conductive structure formed by mixing a plurality of conductive carbon-based materials 201 and phosphor materials 202 and distributing them uniformly on a transparent carrier 205, thereby effectively absorbing invisible light of incident light sources having different wavelengths in sunlight, and re-emitting the absorbed wide range of the incident light source as visible light, thereby realizing the conversion of thermal energy into light energy, which is then advanced to the solar cell layer 30 of the solar panel 100. The amount of incoming light energy can be increased and converted into electrical energy, and since it is a low-light power generation, the power generation operation time of the solar panel 100 can be effectively extended, and since it can also absorb thermal energy and convert it into electrical energy, the effect of waste heat power generation can be obtained, so the efficiency of absorbing sunlight and converting it into electrical energy of the solar panel 100 can be greatly improved, and the light energy gain layer 200 does not require expensive and special materials, and the production process is simple, the production equipment is cheap, and it is attached to the solar panel 100 by a method such as printing, coating, or forming a film-like structure and adhering, so that the assembly process is easy and the cost is low. In addition, the adhesion of the film-like structure is, for example, by using a non-conductive colloid. [Explanation of symbols]

[0032] 100 solar panels 101 First Side 102 Second Side 103 Side 10 Glass Layer 20 First sealing layer 30 Solar cell layer 40 Second sealing layer 50 Backplane Layer 200 Light energy gain layer 201 Conductive carbon materials 202 Phosphor materials 205 Transparent Carrier

Claims

1. A method for improving the photoelectric conversion efficiency of a solar panel, which is applicable to a solar panel, and can irradiate sunlight onto at least one surface thereof, comprising: uniformly distributing a mixture of a plurality of finely divided two-dimensional conductive carbon-based materials and a phosphor material on a transparent carrier to form a layered three-dimensional conductive structure; and applying a close and differently spaced resonance effect of the three-dimensional conductive structure to incident light waves of sunlight having different wavelengths, thereby increasing the solar light absorption function of the solar panel over a wide range.

2. The present invention is applicable to a solar panel having a first surface facing the sun, a second surface facing away from the sun, and a plurality of side surfaces between the first surface and the second surface, and at least one optical energy gain layer is disposed 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 formed by mixing a plurality of conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, the conductive carbon-based material has a two-dimensional structure, the conductive carbon-based material and the phosphor material have average dimensions of less than a micron, and the transparent carrier is selected from a transparent thermoplastic plastic.

3. 3. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 2, wherein the light energy gain layer is attached to the solar panel by a method of printing, coating, or forming a film-like structure and adhering it to the solar panel.

4. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 2 , wherein the conductive carbon-based material is selected from one or a combination of graphite, graphene, graphene, carbon nanotube, carbon fiber, and diamond.

5. 3. The solar panel photoelectric conversion efficiency improving structure according to claim 2, wherein the phosphor material is selected from one or a combination of oxide phosphors, sulfide phosphors, molybdic acid phosphors, rare earth ion phosphors, and organic phosphors.

6. 3. The solar panel photoelectric conversion efficiency improving structure according to claim 2, wherein the transparent carrier is selected from one or a combination of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

7. The solar panel may be applicable to a solar panel having a first surface facing the sun, a second surface facing away from the sun, and a plurality of side surfaces between the first surface and the second surface, the solar panel being configured by stacking at least a glass layer, a first encapsulation layer, a solar cell layer, and a second encapsulation layer in that order from front to back, one or any two or more of the glass layer, the first encapsulation layer, the solar cell layer, and the second encapsulation layer corresponding to one or any two or more of the first surface, the second surface, and the side surfaces of the solar panel, and at least one light energy gain layer being coupled thereto; The light energy gain layer is a layered three-dimensional conductive structure formed by mixing a plurality of conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, the conductive carbon-based material has a two-dimensional structure, the conductive carbon-based material and the phosphor material have average dimensions of less than a micron, and the transparent carrier is selected from a transparent thermoplastic plastic.

8. 8. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 7, wherein the light energy gain layer is attached to the solar panel by a method of printing, coating, or forming a film-like structure and adhering it to the solar panel.

9. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 7, wherein the conductive carbon-based material is selected from one or a combination of graphite, graphene, graphene, carbon nanotubes, carbon fibers, and diamond.

10. 8. The solar panel photoelectric conversion efficiency improving structure according to claim 7, wherein the phosphor material is selected from one or a combination of oxide phosphors, sulfide phosphors, molybdic acid phosphors, rare earth ion phosphors, and organic phosphors.

11. 8. The solar panel photoelectric conversion efficiency improving structure according to claim 7, wherein the transparent carrier is selected from one or a combination of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

12. The present invention is applicable to a solar panel having a first surface facing the sun, a second surface facing away from the sun, and a plurality of side surfaces between the first surface and the second surface, the solar panel comprising, from front to back, at least one solar cell layer corresponding to one or any two or more of the first surface, the second surface, and the side surfaces of the solar panel, and having at least one optical energy gain layer coupled thereto; The light energy gain layer is a layered three-dimensional conductive structure formed by mixing a plurality of conductive carbon-based materials and phosphor materials and distributing them uniformly on a transparent carrier, the conductive carbon-based material has a two-dimensional structure, the conductive carbon-based material and the phosphor material have average dimensions of less than a micron, and the transparent carrier is selected from a transparent thermoplastic plastic.

13. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 12, wherein the light energy gain layer is attached to the solar panel by a method of printing, coating, or forming a film-like structure and adhering it to the solar panel.

14. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 12, wherein the conductive carbon-based material is selected from one or a combination of graphite, graphene, graphene, carbon nanotubes, carbon fibers, and diamond.

15. 13. The solar panel photoelectric conversion efficiency improving structure according to claim 12, wherein the phosphor material is selected from one or a combination of oxide phosphors, sulfide phosphors, molybdic acid phosphors, rare earth ion phosphors, and organic phosphors.

16. 13. The solar panel photoelectric conversion efficiency improving structure according to claim 12, wherein the transparent carrier is selected from one or a combination of polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, ethylene-vinyl acetate copolymer, and acrylic resin.

17. The solar panel photoelectric conversion efficiency improvement structure according to claim 12, characterized in that a light energy gain layer and a first encapsulation layer are respectively bonded to both sides of the solar cell layer, thereby making the solar panel a flexible structure that can be bent.

18. The structure for improving photoelectric conversion efficiency of a solar panel according to claim 12, wherein the optical energy gain layer can be used to replace a window glass by increasing its thickness, to form a curtain or window-type solar panel.

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