Novel perovskite solar cell packaging structure

Abstract

The utility model belongs to the technical field of photovoltaic cells, and particularly relates to a novel perovskite solar cell packaging structure which comprises a first glass plate, a perovskite photovoltaic layer, a second glass plate, a third glass plate and a fourth glass plate. The first glass plate, the perovskite photovoltaic layer, the second glass plate and the third glass plate are sequentially attached together from top to bottom, the fourth glass plate is arranged below the third glass plate, and edge sealing layers are arranged on the periphery of the third glass plate and the periphery of the fourth glass plate. And vacuum layers are arranged among the third glass plate, the fourth glass plate and the edge sealing layer. The vacuum layer is arranged in the perovskite solar cell packaging structure, so that the sound insulation and heat insulation effects can be enhanced, and the problems of heat insulation and sound insulation when the perovskite solar cell packaging structure is applied to building integrated photovoltaics are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic cells, and particularly relates to a novel encapsulation structure for perovskite solar cells. Background Art

[0002] Photovoltaics has become the main object of solar energy development, which has the advantages of safety, cleanliness, low cost, etc. The first-generation silicon-based solar cells are relatively high in cost and complex in manufacturing process in terms of raw materials and manufacturing. The third-generation perovskite solar cells have received wide attention due to their advantages such as high photoelectric conversion efficiency, low preparation cost, and simple preparation process.

[0003] Compared with traditional solar cells, the transparent characteristics of perovskite solar cells make it possible for their diverse applications, including building integrated photovoltaics (BIPV). Building integrated photovoltaics takes perovskite solar cells (including their encapsulation structures) as part of the building (roof, window, exterior wall, etc.), which not only realizes the integration of building and power generation functions, and the electric energy generated by the building itself provides power for indoor lighting, air conditioning, etc., achieving energy self-sufficiency and energy conservation and emission reduction, but also improves the aesthetics of the building.

[0004] When perovskite solar cells are applied to building integrated photovoltaics, their sound insulation and heat insulation performance are particularly important for the living experience of the building. Summary of the Utility Model

[0005] The utility model provides a novel encapsulation structure for perovskite solar cells, and the sound insulation and heat insulation effects of the encapsulation structure for perovskite solar cells are good.

[0006] The specific technical solution of the utility model is as follows:

[0007] The utility model provides a novel encapsulation structure for perovskite solar cells, including: a first glass plate, a perovskite photovoltaic layer, a second glass plate, a third glass plate, and a fourth glass plate. The first glass plate, the perovskite photovoltaic layer, the second glass plate, and the third glass plate are sequentially laminated together from top to bottom. The fourth glass plate is arranged below the third glass plate, and an edge sealing layer is arranged around the third glass plate and the fourth glass plate. A vacuum layer is arranged between the third glass plate, the fourth glass plate and the edge sealing layer; or a first glass plate, a perovskite photovoltaic layer, a second glass plate, and a fourth glass plate. The first glass plate, the perovskite photovoltaic layer, and the second glass plate are sequentially laminated together from top to bottom. The fourth glass plate is arranged below the second glass plate, and an edge sealing layer is arranged around the second glass plate and the fourth glass plate. A vacuum layer is arranged between the second glass plate, the fourth glass plate and the edge sealing layer.

[0008] Preferably, the perovskite photovoltaic layer sequentially includes a flexible substrate, an electron transport layer, a perovskite absorption layer, a hole transport layer, an electrode, and a protective layer. The flexible substrate is disposed below the first glass plate, and the protective layer is disposed above the second glass plate.

[0009] Preferably, one side of the flexible substrate is connected to a first metal lead, the first metal lead is connected to the anode of the circuit, one end of the electrode is connected to a second metal lead, and the second metal lead is connected to the cathode of the circuit.

[0010] Preferably, the protective layer is a plastic film.

[0011] Preferably, the plastic film is a PE film, a PET film, or a PEN film.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: A vacuum layer is provided in the perovskite solar cell packaging structure of the present utility model, which can enhance the sound insulation and heat insulation effects and solve the heat insulation and sound insulation problems when it is applied to building-integrated photovoltaics. Description of the Drawings

[0013] Figure 1 is a schematic side cross-sectional structure diagram of Embodiment 1.

[0014] Figure 2 is a schematic cross-sectional structure diagram of Embodiment 1.

[0015] Figure 3 is a schematic side cross-sectional structure diagram of Embodiment 2.

[0016] Figure 4 is a schematic cross-sectional structure diagram of Embodiment 2.

[0017] In the figure: 1, the first glass plate; 2, the flexible substrate; 3, the electron transport layer; 4, the perovskite absorption layer; 5, the hole transport layer; 6, the electrode; 7, the protective layer; 8, the second glass plate; 9, the third glass plate; 10, the edge sealing layer; 11, the vacuum layer; 12, the fourth glass plate; 13, the first metal lead; 14, the second metal lead; 22, the perovskite photovoltaic layer. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, terms such as "arrangement" and "connection" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Example 1

[0021] As Figure 1 、 Figure 2 shown, this embodiment provides a novel perovskite solar cell packaging structure, including: a first glass plate 1, a perovskite photovoltaic layer 22, a second glass plate 8, a third glass plate 9, and a fourth glass plate 12. The first glass plate 1, the perovskite photovoltaic layer 22, the second glass plate 8, and the third glass plate 9 are sequentially bonded together from top to bottom (wherein, the second glass plate 8 and the third glass plate 9 are bonded with a glue film). The fourth glass plate 12 is arranged below the third glass plate 9, and an edge sealing layer 10 is arranged around the third glass plate 9 and the fourth glass plate 12. A vacuum layer 11 is arranged between the third glass plate 9, the fourth glass plate 12 and the edge sealing layer 10, and the pressure of the vacuum layer 11 is 10 -5 Pa to 100 Pa.

[0022] The perovskite photovoltaic layer 22 of this embodiment sequentially includes a flexible substrate 2, an electron transport layer 3, a perovskite absorption layer 4, a hole transport layer 5, an electrode 6, and a protective layer 7. The flexible substrate 2 is arranged below the first glass plate 1, and the protective layer 7 is arranged above the second glass plate 8.

[0023] One side of the flexible substrate 2 is connected to a metal lead 13, the metal lead 13 is connected to the anode of the circuit, one end of the electrode 6 is connected to a metal lead 14, and the metal lead 14 is connected to the cathode of the circuit.

[0024] Among them, the protective layer 7 is a plastic film, preferably a PE film, a PET film or a PEN film.

[0025] Example 2

[0026] As Figure 3 、 Figure 4As shown in the figure, this embodiment provides a novel perovskite solar cell packaging structure, including: a first glass plate 1, a perovskite photovoltaic layer 22, a second glass plate 8, and a fourth glass plate 12. The first glass plate 1, the perovskite photovoltaic layer 22, and the second glass plate 8 are adhered together in sequence from top to bottom. The fourth glass plate 12 is disposed below the second glass plate 8, and an edge sealing layer 10 is provided around the second glass plate 8 and the fourth glass plate 12. A vacuum layer 11 is provided between the second glass plate 8, the fourth glass plate 12, and the edge sealing layer 10, and the pressure of the vacuum layer 11 is 10-5 pa to 100 pa.

[0027] The perovskite photovoltaic layer 22 of this embodiment sequentially includes a flexible substrate 2, an electron transport layer 3, a perovskite absorption layer 4, a hole transport layer 5, an electrode 6, and a protective layer 7. The flexible substrate 2 is disposed below the first glass plate 1, and the protective layer 7 is disposed above the second glass plate 8.

[0028] One side of the flexible substrate 2 is connected to a metal lead 13, and the metal lead 13 is connected to the anode of the circuit. One end of the electrode 6 is connected to a metal lead 14, and the metal lead 14 is connected to the cathode of the circuit.

[0029] Among them, the protective layer 7 is a plastic film, preferably a PE film, a PET film, or a PEN film.

[0030] In the novel perovskite solar cell packaging structure provided by the present invention, the perovskite photovoltaic layer in its structure can be other existing structures of perovskite photovoltaic layers in the art.

[0031] The above is a detailed description of the embodiment, which is convenient for those skilled in the art to correctly understand and use the present invention. Any improvement or modification of the technical solution obtained by those skilled in the art based on the present invention on the basis of the prior art through various methods such as changes, modifications, substitutions, and variations without creative labor should be within the protection scope determined by the claims.

Claims

1. A novel perovskite solar cell packaging structure, characterized in that: include: a first glass plate, a perovskite photovoltaic layer, a second glass plate, a third glass plate, and a fourth glass plate, The first glass plate, the perovskite photovoltaic layer, the second glass plate and the third glass plate are sequentially attached together from top to bottom. The fourth glass plate is disposed below the third glass plate, and edge sealing layers are disposed around the third glass plate and the fourth glass plate, and a vacuum layer is disposed between the third glass plate, the fourth glass plate and the edge sealing layer; or a first glass plate, a perovskite photovoltaic layer, a second glass plate, a fourth glass plate, The first glass plate, the perovskite photovoltaic layer and the second glass plate are sequentially attached together from top to bottom, The fourth glass plate is arranged below the second glass plate, and edge sealing layers are arranged around the second glass plate and the fourth glass plate, and a vacuum layer is arranged between the second glass plate, the fourth glass plate and the edge sealing layer.

2. The novel perovskite solar cell packaging structure according to claim 1, characterized in that: in, The perovskite photovoltaic layer includes a flexible substrate, an electron transport layer, a perovskite absorption layer, a hole transport layer, an electrode, and a protective layer in sequence.

3. The novel perovskite solar cell packaging structure according to claim 2, characterized in that: in, One side of the flexible substrate is connected to a metal lead 1, and the metal lead 1 is connected to an anode of a circuit. One end of the electrode is connected to a second metal lead, and the second metal lead is connected to a cathode of a circuit.

4. The novel perovskite solar cell packaging structure according to claim 2, characterized in that: in, The protective layer is a plastic film.

5. The novel perovskite solar cell packaging structure according to claim 4, characterized in that: in, The plastic film is a PE film, a PET film or a PEN film.

Images