CN219106167U - Transparent photovoltaic power generation double-layer laminated glass - Google Patents
Transparent photovoltaic power generation double-layer laminated glass Download PDFInfo
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- CN219106167U CN219106167U CN202223364345.4U CN202223364345U CN219106167U CN 219106167 U CN219106167 U CN 219106167U CN 202223364345 U CN202223364345 U CN 202223364345U CN 219106167 U CN219106167 U CN 219106167U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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- Photovoltaic Devices (AREA)
Abstract
The utility model provides transparent photovoltaic power generation double-layer laminated glass, which is characterized in that a solar power generation layer is arranged at the edge of the glass and is arranged in parallel with the incident direction of sunlight, so that the influence or the interference on the incident transmittance of the sunlight can be avoided. In addition, the photovoltaic power generation glass comprises a first glass layer, a second glass layer and a photoluminescence material layer; and the edge of the photovoltaic power generation glass is provided with a packaging material layer, the outer side of the packaging material layer is provided with a photovoltaic layer which is placed in parallel with the incident direction of sunlight, and the solar power generation layer is connected with an external circuit. The application provides a photovoltaic power generation glass has realized full transparent or semitransparent doubling photovoltaic power generation glass, and this kind of doubling photovoltaic power generation glass based on sunlight turns to and penetrates into parallel arrangement photovoltaic layer can be used to building curtain, vehicle, photovoltaic integration application in fields such as photovoltaic power plant.
Description
Technical Field
The utility model relates to laminated photovoltaic power generation glass Laminated Photovoltaic Glass based on sunlight turning and incidence of parallel photovoltaic layers, which is hereinafter referred to as LPG, and belongs to the technical field of photovoltaic.
Background
In the state of the art, the development and utilization of solar power generation can cause absorption or blocking of visible light wave bands, so that common photovoltaic cells (or solar cells) are opaque or have colors, and are difficult to integrate with glass curtain walls. Thus, existing photovoltaic building integration technologies are limited mainly to opaque building materials such as roofs, walls, tiles, stone, sheet metal, and the like.
In the photovoltaic technology of integrating a very small part of the photovoltaic glass, the photovoltaic power generation glass cannot show a full transparent colorless form because of the color of the light absorption material.
For example, roof photovoltaic power generation products which are proposed by Hannergy company in China and Tesla company in U.S.A. are prepared by packaging flexible thin film solar power generation chips in curved glass and polymer composite materials, and combining the flexible thin film solar power generation chips with the form of the traditional roof tiles to create a brand new green building material, so that the roof tiles can be comprehensively replaced by the traditional roof tiles to become energy-saving building materials. However, the thin film solar power generation material is colored, so that the thin film solar power generation material can only be used on a roof with low light transmittance.
The existing products applied to the photovoltaic glass curtain wall generally adopt the technical means of colored semitransparent photovoltaic materials or hollowed-out hole-digging opaque photovoltaic materials, so that the using effect of partial light transmission of the glass can be realized.
As shown in fig. 1, the core problem that the photovoltaic glass cannot realize full transparency in the incident direction of arrow light is that the existing photovoltaic product only uses direct photon energy of sunlight, and incident light is attenuated after being absorbed by the solar power generation layer. Therefore, the photovoltaic material layer, namely the solar power generation layer and the sunlight absorption layer, is required to be completely or partially perpendicular to the incident direction of sunlight, so that the light quantity of the finally transmitted glass is reduced after the photovoltaic material completely or partially absorbs the sunlight.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide the photovoltaic power generation glass based on the sunlight turning optical waveguide laminating structure, and the photovoltaic material layer is designed to be completely parallel to the sunlight incidence direction, so that the light transmittance of the photovoltaic power generation glass is not reduced completely, and finally the photovoltaic power generation glass with full transmission (full transparency and full light transmittance) of visible light can be realized.
The utility model adopts the following specific technical scheme:
the transparent photovoltaic power generation double-layer laminated glass is of a multi-layer laminated structure and at least comprises a first glass layer, a second glass layer and a photoluminescence substance layer between the two glass layers; the solar power generation layer is arranged at the edge of the photovoltaic power generation glass and is parallel to the incident direction of sunlight, visible light in the sunlight completely passes through the photovoltaic power generation glass, invisible light in the sunlight is diverted through the photoluminescent material layer, and then the invisible light is guided to the solar power generation layer at the lateral edge for power generation through total reflection of interfaces of the multilayer laminated structure.
Further, the photoluminescent material layer comprises two single photoluminescent compound material layers and a polymer film material layer in between, or the photoluminescent material layer is a photoluminescent material layer with viscosity formed by mixing photoluminescent materials and polymer film materials.
Further, the first glass layer, the second glass layer and the photoluminescence material layer form a unit glass layer, and the photovoltaic power generation glass comprises one unit glass layer or a plurality of superposed unit glass layers; the unit glass layer is formed by bonding the photoluminescent material layer and the glass layer into a whole in a vacuum hot-pressing processing mode.
Based on the technical scheme of the utility model, compared with the prior art, the utility model has the following technical advantages:
compared with the laminated photovoltaic power generation glass in the prior art, the solar power generation layer in the photovoltaic power generation glass is placed parallel to the incident direction of sunlight, visible light in the sunlight completely passes through the photovoltaic power generation glass, invisible light turns through the photoluminescent material layer in the photovoltaic power generation glass, and then the light is guided to the solar power generation layer parallel to the light setting at the lateral edge by the interface total reflection principle of the multilayer laminated structure to generate power. Based on this scheme, solar energy power generation layer can be parallel direction setting with light, avoids appearing among the prior art solar energy power generation layer perpendicular to light setting, causes the problem that influences the printing opacity.
The optical waveguide laminating structure can introduce more medium reflecting surfaces at the angle perpendicular to the incidence of sunlight, so that the light-emitting proportion from the solar photon excited photoluminescent material to the periphery edge of the glass, which is generated by new conversion photon steering waveguide, is greatly improved. For example, a glass having a length of 10cm×a width of 10cm×a thickness of 1cm, a front incident light area of length×width=100, a light exit area diverted to a side of side length×thickness=40, and a theoretical light exit intensity of the glass increases by 2.5 times, and the increase ratio increases further as the glass area increases. Therefore, compared with the laminated photovoltaic power generation glass in the prior art, the photovoltaic power generation glass LPG with the optical waveguide laminated structure has the advantages that the solar power generation layer is placed parallel to the incident direction of sunlight without affecting the light transmittance of the glass, and the photovoltaic conversion efficiency of a theoretical solar cell is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram showing the effect of a light path of a laminated glass according to the prior art;
FIG. 2 is a light path effect diagram of the laminated glass of the present application;
FIG. 3 is a schematic diagram of the light absorption of the photovoltaic power generation glass provided by the present application;
FIG. 4 is a side view of photovoltaic power generation glass of the optical waveguide laminating structure of the present application;
FIG. 5 is a top view of photovoltaic power generation glass of the optical waveguide laminated structure of the present application;
FIG. 6 is a graph showing the effect of performance testing of a photoluminescent material layer according to an embodiment;
fig. 7 is a graph showing the performance test effect of the photovoltaic power generation glass with the optical waveguide laminated structure provided in the embodiment;
in the figure, a 1-glass layer, a 2-polymer film material layer, a 3-photoluminescence material layer, a 4-packaging material layer, a 5-solar power generation layer and a 6-external circuit are shown.
Detailed Description
The present utility model will be described in further detail below with reference to the drawings and detailed description for the purpose of better understanding of the technical solution of the present utility model to those skilled in the art. Embodiments of the present utility model will hereinafter be described in detail, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model. As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
The embodiment is transparent photovoltaic power generation double-layer laminated glass, wherein the double-layer laminated glass is of a multi-layer laminated structure and at least comprises a first glass layer, a second glass layer and a photoluminescence substance layer 3 between the two glass layers 1; the solar power generation layer 5 is arranged at the edge of the photovoltaic power generation glass and is parallel to the incident direction of sunlight, visible light in the sunlight completely passes through the photovoltaic power generation glass, invisible light in the sunlight is diverted through the photoluminescent material layer 3, and then the invisible light is guided to the solar power generation layer 5 at the lateral edge for power generation through total reflection of interfaces of the multilayer laminated structure. As shown in fig. 4 and 5, the photovoltaic power generation glass has a multilayer structure, and includes a first glass layer, a second glass layer, and a photoluminescent material layer 3; an encapsulation material layer 4 is arranged at the edge of the photovoltaic power generation glass, and a solar power generation layer 5 is arranged outside the encapsulation material layer 4; the solar power generation layer 5 and the photovoltaic power generation glass are arranged in the vertical direction, and the solar power generation layer 5 is connected with an external circuit 6.
As shown in fig. 4, the photoluminescent material layer 3 includes two single photoluminescent compound layers and a polymer film material layer 2 therebetween, or the photoluminescent material layer 3 is a photoluminescent material layer 3 with adhesiveness formed by mixing a photoluminescent material with a polymer film material.
Based on the above structure, the photovoltaic power generation glass provided in the present embodiment includes the unit glass layer 1, the first glass layer, the second glass layer, and the photoluminescent material layer 3 constitute the unit glass layer 1, that is, the laminated glass, and the photovoltaic power generation glass includes one unit glass layer 1 or a plurality of stacked unit glass layers 1.
As shown in fig. 3, the photovoltaic power generation glass provided herein places a photoluminescent compound in an interlayer of the laminated glass, and the photoluminescent compound that can be used for the purpose of the present utility model may be selected from photoluminescent compounds that absorb 200 to 450nm in the ultraviolet region and emit 380 to 1300nm in the visible and near infrared regions; after the light irradiates on the photoluminescent material layer 3, the light path is internally reflected in the glass layers 1 at two sides of the photoluminescent material layer 3, the glass layers 1 form a Fabry-Perot resonant cavity, and the photoluminescent light is absorbed by the side solar power generation layer 5 after being totally reflected by an interface; as shown in fig. 2, the arrow light incident direction, based on this scheme, the solar power generation layer 5 may be disposed in a parallel direction with the light, and the light does not enter through the solar power generation layer 5 without attenuation, and does not need to be disposed perpendicular to the light as in the prior art, thereby causing a problem of influencing light transmission.
As shown in fig. 6, the absorption spectrum of the laminated photovoltaic glass has an absorption cut-off wavelength of about 450nm, that is, 450-800 nm visible light can completely penetrate through the laminated photovoltaic glass, so that the effect that the visible light range of the photovoltaic glass is completely colorless and completely transparent is achieved.
As a preferred embodiment of the present application, the unit glass layer 1 is formed by bonding the photoluminescent material layer 3 and the glass layer 1 into a whole by vacuum hot pressing.
As shown in fig. 3, the optical waveguide type laminated photovoltaic glass structure of the present utility model is creatively characterized in that the solar power generation layer 5 is placed on the side edge of the laminated glass and is parallel to the incident direction of sunlight. Unlike the solar power generation layer 5 perpendicular to the sunlight incident direction in the conventional laminated structure, the parallel-placed solar power generation layer 5 of the present patent does not have an absorption effect on incident light. Furthermore, due to the ultra-strong light transmittance, the photovoltaic power generation glass can be applied to the outer wall of a building and used for manufacturing roofs, walls, tiles, stones, metal plates and the like for the building, so that the building and the like have the power generation effect, and compared with the existing civil photovoltaic power generation project, the photovoltaic power generation glass does not need to be additionally paved with a light-emitting cell plate.
Example 2
The application also provides a manufacturing method of the solar steering waveguide laminated photovoltaic power generation glass, which comprises the following steps:
s1, manufacturing a photoluminescent material layer 3, wherein the photoluminescent material layer 3 is a single-layer compound, or the photoluminescent material and a polymer film material are mixed to form the photoluminescent material layer 3 with viscosity;
further, in the scheme disclosed in this embodiment, the photoluminescent material layer 3 adopts a photoluminescent film having broadband self-trapping exciton STEs emission characteristics, and the preparation method thereof is as follows:
the (OCTAm) 2SnBr4 two-dimensional perovskite luminescent material is dispersed in toluene solvent according to the concentration of 10mg/mL by ultrasonic wave, and stable white suspension is obtained. Spraying the suspension onto the surface of ultra-white glass with the thickness of 6mm to obtain the photoluminescence film with broadband self-trapping exciton STEs emission characteristic;
and dispersing the Cs4PbBr6 zero-dimensional perovskite luminescent material in a chlorobenzene solvent according to the concentration of 5mg/mL by ultrasonic waves to obtain a stable white suspension. And spraying the suspension onto the surface of ultra-white glass with the thickness of 6mm to obtain the photoluminescent film with broadband self-trapping exciton STEs emission characteristic.
The low-dimensional stannyl perovskite material with self-trapping state exciton luminescence prepared based on the ultrasonic oscillation method is dispersed in dichloromethane solvent according to the concentration of 10mg/mL by ultrasonic wave, so as to obtain stable white suspension. And spraying the suspension onto the surface of ultra-white glass with the thickness of 6mm to obtain the photoluminescent film with broadband self-trapping exciton STEs emission characteristic.
From the spectral curves shown in fig. 7, it is deduced that: the self absorptivity of the material of the low-dimensional tin-based perovskite film with self-trapped exciton luminescence is less than 0.1%, the absorption spectrum and photoluminescence spectrum overlap region/photoluminescence spectrum region is multiplied by 100%, and the material has the characteristic of super-large Stokes shift typical of the material with self-trapped exciton luminescence.
S2, bonding the photoluminescence substance layer 3 and the glass layer 1 to form a unit glass layer 1, and superposing the unit glass layer 1 on two sides of the surface of the unit glass layer in the vertical direction to form a main body part of the middle part of the photovoltaic power generation glass.
The preparation method of the main body part in this embodiment is as follows:
the two pieces of ultra-white glass with the thickness of 6mm and coated with the photoluminescent film with broadband self-trapping state exciton STEs emission characteristic are clamped face to face with one side with the photoluminescent film, and one piece of F406 EVA adhesive film of Hangzhou foster company is clamped. And placing the super white glass/photoluminescent film/EVA adhesive film/photoluminescent film/super white glass structure into a vacuum hot press sheet machine. Setting hot pressing temperature of 100 ℃ and vacuum degree of-0.1 MPa, and adding lamination pressure of 0.5MPa for processing. Finally, the optical waveguide laminated glass with a multilayer structure is obtained.
And S3, packaging the edge of the main body part, and attaching a solar power generation layer 5 outside the packaging material layer 4, wherein the solar power generation layer 5 is connected with an external circuit 6.
The photovoltaic power generation glass comprises one unit glass layer 1 or a plurality of unit glass layers 1, and each unit glass layer 1 comprises a first glass layer, a second glass layer and a photoluminescence material layer 3.
In order to further improve the power generation performance of the photovoltaic power generation glass, the embodiment also provides the optical waveguide laminated glass with a multilayer structure, and the preparation method comprises the following steps:
the two pieces of ultra-white glass with the thickness of 6mm and coated with the photoluminescent film with broadband self-trapping state exciton STEs emission characteristic are clamped face to face with one side with the photoluminescent film, and one piece of F406 EVA adhesive film of Hangzhou foster company is clamped. And placing the super white glass/photoluminescent film/EVA adhesive film/photoluminescent film/super white glass structure into a vacuum hot press sheet machine. Setting hot pressing temperature of 100 ℃ and vacuum degree of-0.1 MPa, and adding lamination pressure of 0.5MPa for processing. Finally, the optical waveguide laminated glass with a multilayer structure is obtained.
In this embodiment, the photoluminescent material includes one or more of a zero-dimensional 0D metal halide luminescent material, a rare earth luminescent material, an organic luminescent material, a metal complex luminescent material, an organic-inorganic hybrid luminescent material, and an inorganic quantum dot luminescent material. In the materials, the strong coupling action of electrons and phonons and the characteristic of soft crystal lattices lead the photoluminescent materials to be easy to generate excited state structure recombination, and generate broadband self-trapping state exciton STEs emission.
Performance test of photovoltaic power generation glass LPG of optical waveguide doubling structure:
the voltage-current curve test was performed on the photovoltaic power generation glass LPG of the optical waveguide sandwich structure of the above-described embodiments based on a three permanent motor SAN-EI ELECTRIC co, ltd, XES-40S3 solar simulator and a positive keylay 2400 source table.
The surface of the photovoltaic power generating glass LPG of the optical waveguide laminated structure was then irradiated with a light source for 60 seconds, the solar simulator using a power equal to 1 standard solar intensity (AM 1.5g,1000w /). A first measurement was made and a voltage-current curve generated by the effect of irradiation was measured on the photovoltaic power generating glass LPG of the entire optical waveguide sandwich structure, taking 4cm×4cm as an example. From the data, it is deduced that the photovoltaic power generation glass LPG with the optical waveguide laminating structure has good photoelectric conversion efficiency.
As a preferred embodiment of the application, the photoluminescent compound may be selected from photoluminescent compounds that absorb in the ultraviolet region (200-450 nm) and emit in the visible and near infrared range (380-1300 nm). Photoluminescent compounds that can be advantageously used for the purposes of the present utility model are (ostam) 2SnBr4 two-dimensional perovskite luminescent materials as in paper (Chemical Science,2019, 10, 4573-4579); for another example, cs4PbBr6 zero-dimensional perovskite luminescent material in papers published by the applicant (Journal of Alloys and Compounds,2019, 797, 1151-1156); for another example, the applicant describes in chinese patent application 202110190753.3 a low-dimensional tin-based perovskite material with self-trapping excitonic luminescence prepared based on an ultrasonic oscillation method.
The photoluminescent compound may be selected from one or more mixtures of the above materials.
It should be noted that with respect to the common organic solvents used, such as methylene chloride, toluene, the following physical properties are possessed: low vapor pressure (.ltoreq.0.01 mm/Hg at 20 ℃) and therefore very low volatility; low freezing temperature (less than or equal to-65 ℃) and high boiling point (more than or equal to 250 ℃). The physical properties of the organic solvents, e.g. dichloromethane, toluene, allow to act as a dispersion medium for the photoluminescent compound also at critical temperature conditions.
In this embodiment, the polymer film material may be one or more selected from polyvinyl butyral PVB, polyethylene-vinyl acetate EVA, polyolefin elastomer POE, laminated glass ionomer SGP, and polyurethane PU, and has a thickness of 0.1 to 10 millimeters. Polyvinyl butyral, PVB, polyethylene-vinyl acetate, EVA, polyolefin elastomer, POE, films that can be advantageously used for the purposes of the present application and are currently commercially available, specific examples are: fuxin Q series high-performance sound insulation PVB adhesive films of the first Nuo company in the United states, F406 and F806 series EVA adhesive films of the Hangzhou foster company, and TF4 and TF8 series POE adhesive films of the Hangzhou foster company.
In this embodiment, the glass layer 1 includes one or more of flat glass, tempered glass, quartz glass, curved glass, and ultrathin flexible glass. The thickness is 1 to 100 mm. Sheet glass which can be advantageously used for the purposes of the present application and which is currently commercially available, specific examples are: JGS2 quartz glass of China south glass group, ultra-white glass and tempered glass.
The laminated glass, namely the solar cell slice attached to the peripheral edge of the unit glass layer 1, comprises one or more of silicon a-Si/c-Si/p-Si, copper Indium Gallium Selenide (CIGS), gallium arsenide (GaAs), cadmium telluride (CdTe), perovskite Perovski, dye sensitized DSSC and organic OPV solar cells.
Silicon a-Si/c-Si/p-Si, copper indium gallium diselenide CIGS solar cells that can be advantageously used for the purposes of the present utility model and are currently commercially available, specific examples are: SUNPOWER single crystal silicon Solar cell, three-junction amorphous silicon germanium Solar cell of Uni-Solar company, han energy GSE copper indium gallium selenium CIGS cell.
According to the preferred embodiment of the utility model, the packaging material between the solar power generation layer 5 and the glass side edge at the peripheral edge of the laminated glass comprises one or more of polyvinyl butyral PVB, polyethylene-vinyl acetate EVA, polyolefin elastomer POE, laminated glass ionomer SGP, polyurethane PU and molten glass powder. The thickness is 0.1 to 10 mm. Polyvinyl butyral, PVB, polyethylene-vinyl acetate, EVA, polyolefin elastomer, POE, films that can be advantageously used for the purposes of the present application and are currently commercially available, specific examples are: fuxin Q series PVB adhesive films of the first Nuo company in the United states, S406 and S806 series EVA packaging adhesive films of the Hangzhou Forst company, XUR150 series POE packaging adhesive films of the Hangzhou Forst company.
Furthermore, the series-parallel electrode and the bus circuit of the solar cell at the periphery of the laminated glass comprise a wire and a welding spot.
The utility model has the light-gathering effect based on the principle of sunlight steering incidence, and can steer and gather the sunlight incident on the front surface of the glass to the side edge of the glass through the principle of total reflection optical waveguide. Because the side area of the glass is greatly reduced compared with the front surface of the glass, the light intensity after steering and transmission can far exceed the initial sunlight incident intensity. In addition, from the effect that the wavelength range of 420-780 nm of the emission spectrum of the laminated photovoltaic glass and the wavelength range of 300-400 nm of the excitation spectrum are completely non-overlapped, the excited visible light of the laminated photovoltaic glass can not generate loss when the laminated photovoltaic glass is excited for the second time, so that the problem of the reduction of the photoluminescence efficiency PLQY is caused. Therefore, as shown in fig. 7, for comparison of PLQY values of the blank back ground and the test sample using Edinburgh Instruments FLS980 fluorescence spectrometer test software in a laboratory, i.e., a clean room environment, the test results were as follows: the final measured PLQY value of the photovoltaic power generation glass is as high as 98.3%. For example, a glass having a length of 10cm×a width of 10cm×a thickness of 1cm, a front incident light area of length×width=100, a light exit area diverted to a side of length×thickness=40, and a theoretical light exit intensity of 2.5 times higher. And the lift ratio is further increased as the glass area is enlarged.
Compared with the traditional vertical placement scheme, the required area of the parallel placement photovoltaic layer, namely the solar cell slice, used by the utility model is greatly reduced, and the cost control material saving aspect is obviously improved.
The specification of the laminated photovoltaic power generation glass based on the sunlight turning and incidence of the photovoltaic layer placed in parallel in the embodiment shown in fig. 6 is 4cm long by 4cm wide by 1cm thick, and the incident area and the emergent area are 16. According to the light intensity increasing principle, if the glass specification is enlarged to 40cm long by 40cm wide by 1cm thick, the theoretical photoelectric conversion efficiency is increased by 10 times, and is as high as 42%.
Example 3
The photoluminescent material is applied to photovoltaic power generation glass, and is one or a combination of more of a zero-dimensional metal halide luminescent material, a rare earth luminescent material, an organic luminescent material, a metal complex luminescent material, an organic-inorganic hybrid luminescent material and an inorganic quantum dot luminescent material.
The photoluminescent material is combined with the glass layer 1 to form a multilayer structure; the photoluminescent material is distributed at the surface interface of the glass layer 1 and the polymer film layer in a coating manner, or is printed at the surface interface of the glass layer 1 and the polymer film layer, or is mixed into the polymer film layer.
The new application of the optical waveguide layer in this embodiment realizes a photophysical mechanism for generating new converted photons by exciting photoluminescent substances with solar photons, and simultaneously exciting new photons to exit at random angles based on light. The converted photons excited at random angles are transmitted in the glass layer, the photoluminescent material and the adhesive film layer by optical waveguide based on the principle of total reflection and half reflection generated by the interfaces of glass and air at two side edges, the interface between the photoluminescent material and the glass and the interface between the intermediate adhesive film and various medium surfaces of the glass interface. And finally, transmitting all or most of photons converted by sunlight entering the double-layer laminated glass to the edge of the glass by using the optical waveguide, and further irradiating a solar cell attached to the edge of the glass to perform photovoltaic power generation.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the apparatus embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points. The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (3)
1. The transparent photovoltaic power generation double-layer laminated glass is characterized by being of a multi-layer laminated structure and at least comprising a first glass layer, a second glass layer and a photoluminescence substance layer between the two glass layers; the solar power generation layer is arranged at the edge of the photovoltaic power generation glass and is parallel to the incident direction of sunlight, visible light in the sunlight completely passes through the photovoltaic power generation glass, invisible light in the sunlight is diverted through the photoluminescent material layer, and then the invisible light is guided to the solar power generation layer at the lateral edge for power generation through total reflection of interfaces of the multilayer laminated structure.
2. A transparent photovoltaic power generation double-layer laminated glass according to claim 1, wherein the photoluminescent material layer comprises two single-layer photoluminescent compound material layers and a polymer film material layer in between, or the photoluminescent material layer is a photoluminescent material layer with adhesiveness formed by mixing a photoluminescent material and a polymer film material.
3. The transparent photovoltaic power generation double-layer laminated glass according to claim 1, wherein the first glass layer, the second glass layer and the photoluminescent material layer constitute a unit glass layer, and the photovoltaic power generation glass comprises one unit glass layer or a plurality of stacked unit glass layers; the unit glass layer is formed by bonding the photoluminescent material layer and the glass layer into a whole in a vacuum hot-pressing processing mode.
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