Perovskite battery protection structure

Abstract

The utility model belongs to the technical field of solar cell protection, and discloses a perovskite cell protection structure, which comprises a perovskite cell, and the perovskite cell is deposited on the surface of the perovskite cell through a chemical vapor deposition method to form a packaging structure. The perovskite cell comprises a transparent conductive substrate, an electron transport layer is deposited on the transparent conductive substrate, a perovskite light absorption layer is deposited on the electron transport layer, a hole transport layer is deposited on the perovskite light absorption layer, and a metal electrode is deposited on the hole transport layer. The packaging structure comprises a first packaging layer, the first packaging layer is deposited on the whole surface of the perovskite cell through a chemical vapor deposition method, the outer surface of the first packaging layer is coated with a second packaging layer, the outer surface of the second packaging layer is covered with a third packaging layer, and the transparent conductive substrate is indium tin oxide or fluorine-doped tin oxide. According to the utility model, environmental factors are effectively blocked through multi-layer packaging, so that the stability and the service life of the cell are improved, the photoelectric conversion efficiency can be ensured, and the solar cell is suitable for large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of solar cell protection technology, and in particular to a perovskite cell protection structure. Background Technology

[0002] Perovskite solar cells are a novel solar cell technology, with the core material being a compound with a perovskite structure (such as CH3NH3PbI3). They possess excellent photoelectric properties and have attracted widespread attention in the photovoltaic field in recent years due to their high efficiency, low cost, and ease of manufacturing.

[0003] Perovskite solar cells have attracted much attention due to their high efficiency and low cost. However, perovskite materials are sensitive to environmental factors such as moisture and oxygen and are prone to degradation, which leads to a decrease in cell performance. Therefore, we propose a protective structure for perovskite solar cells. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a protective structure for perovskite batteries, so as to solve the technical problem that current perovskite batteries are susceptible to degradation by environmental factors.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A perovskite battery protection structure includes a perovskite battery, wherein the perovskite battery is deposited on the surface of the perovskite battery to form an encapsulation structure by chemical vapor deposition.

[0008] The perovskite solar cell includes a transparent conductive substrate, an electron transport layer deposited on the transparent conductive substrate, a perovskite light-absorbing layer deposited on the electron transport layer, a hole transport layer deposited on the perovskite light-absorbing layer, and a metal electrode deposited on the hole transport layer.

[0009] The encapsulation structure includes a first encapsulation layer, which is deposited on the entire surface of the perovskite solar cell by chemical vapor deposition. The outer surface of the first encapsulation layer is coated with a second encapsulation layer, and the outer surface of the second encapsulation layer is covered with a third encapsulation layer.

[0010] As an improved technical solution, the transparent conductive substrate is indium tin oxide or fluorine-doped tin oxide, so as to serve as the support and electrode of the battery.

[0011] As an improved technical solution, the electron transport layer is titanium dioxide or tin dioxide to facilitate the extraction and transport of electrons.

[0012] As an improved technical solution, the perovskite light-absorbing layer is lead triiodide methylammonium.

[0013] As an improved technical solution, the hole transport layer is PTAA to facilitate the extraction and transmission of holes.

[0014] As an improved technical solution, the metal electrode is gold or silver, so as to serve as another electrode of the battery.

[0015] As an improved technical solution, the first encapsulation layer is parylene, the second encapsulation layer is epoxy resin, and the third encapsulation layer is glass or a transparent polymer, so as to improve the stability and service life of perovskite solar cells.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model, through its multi-layer encapsulation structure, effectively blocks moisture and oxygen environmental factors, thereby improving the stability and lifespan of perovskite batteries.

[0018] 2. This utility model, by using a transparent conductive substrate and a transparent encapsulation material, can ensure the photoelectric conversion efficiency of the battery.

[0019] 3. This utility model has a simple structure, is easy to prepare, and is suitable for large-scale production. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the exploded structure of the perovskite battery of this utility model.

[0023] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0024] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the structure at point A.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the figure: 101, transparent conductive substrate; 102, electron transport layer; 103, perovskite light-absorbing layer; 104, hole transport layer; 105, metal electrode; 2, encapsulation structure; 201, first encapsulation layer; 202, second encapsulation layer; 203, third encapsulation layer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Reference Figure 1-4 A perovskite battery protection structure is provided, which includes a perovskite battery, wherein the perovskite battery is deposited on the surface of the perovskite battery to form an encapsulation structure 2 by chemical vapor deposition.

[0032] The perovskite solar cell includes a transparent conductive substrate 101, an electron transport layer 102 deposited on the transparent conductive substrate 101, a perovskite light-absorbing layer 103 deposited on the electron transport layer 102, a hole transport layer 104 deposited on the perovskite light-absorbing layer 103, and a metal electrode 105 deposited on the hole transport layer 104.

[0033] The encapsulation structure 2 includes a first encapsulation layer 201, which is deposited on the entire surface of the perovskite cell by chemical vapor deposition. The outer surface of the first encapsulation layer 201 is coated with a second encapsulation layer 202, and the outer surface of the second encapsulation layer 202 is covered with a third encapsulation layer 203. In application, the multi-layer encapsulation structure effectively blocks moisture and oxygen environmental factors to improve the stability and service life of the perovskite cell.

[0034] Reference Figures 2-4 The transparent conductive substrate 101 is indium tin oxide or fluorine-doped tin oxide, so as to serve as the support and electrode of the battery.

[0035] Reference Figures 2-4 The electron transport layer 102 is made of titanium dioxide or tin dioxide to facilitate the extraction and transport of electrons.

[0036] Reference Figures 2-4 The perovskite light-absorbing layer 103 is lead triiodide methylammonium, with the chemical formula CH3NH3PbI3.

[0037] Reference Figures 2-4 Hole transport layer 104 is PTAA (poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine]) to facilitate hole extraction and transport.

[0038] Reference Figures 2-4 The metal electrode 105 is made of gold or silver so that it can be used as another electrode of the battery.

[0039] Reference Figure 3 and Figure 4 The first encapsulation layer 201 is parylene, which is used to block moisture and oxygen. The second encapsulation layer 202 is epoxy resin, which is used to enhance mechanical strength and further block environmental factors. The third encapsulation layer 203 is glass or transparent polymer, which serves as the outermost protective layer.

[0040] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A perovskite cell protection structure, characterized in that: The perovskite cell comprises a packaging structure (2) formed by chemical vapor deposition on the surface of the perovskite cell. The perovskite cell comprises a transparent conductive substrate (101), an electron transport layer (102) deposited on the transparent conductive substrate (101), a perovskite light-absorbing layer (103) deposited on the electron transport layer (102), a hole transport layer (104) deposited on the perovskite light-absorbing layer (103), and a metal electrode (105) deposited on the hole transport layer (104). The packaging structure (2) comprises a first packaging layer (201) deposited on the entire surface of the perovskite cell by chemical vapor deposition, an outer surface of the first packaging layer (201) coated with a second packaging layer (202), and an outer surface of the second packaging layer (202) covered with a third packaging layer (203).

2. The perovskite cell protection structure of claim 1, wherein: The transparent conductive substrate (101) is indium tin oxide or fluorine-doped tin oxide.

3. The perovskite cell protection structure of claim 1, wherein: The electron transport layer (102) is titanium dioxide or tin dioxide.

4. The perovskite cell protection structure of claim 1, wherein: The perovskite light-absorbing layer (103) is methylammonium lead iodide.

5. The perovskite cell protection structure of claim 1, wherein: The hole transport layer (104) is PTAA.

6. The perovskite cell protection structure of claim 1, wherein: The metal electrode (105) is gold or silver.

7. The perovskite cell protection structure of claim 1, wherein: The first packaging layer (201) is parylene, the second packaging layer (202) is epoxy resin, and the third packaging layer (203) is glass or transparent polymer.

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