Device and method for preparing film layer in perovskite battery and perovskite battery
By designing a device for the preparation of perovskite batteries, the vapor flow is guided by the condensation components, the pollution problem caused by the high discreteness of FAI evaporation is solved, and high-quality film deposition and simplified process flow are achieved.
Patent Information
- Application Number
- CN202510257817.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-06-06
AI Technical Summary
During the preparation process of existing perovskite solar cells, due to the high evaporation and discreteness of FAI materials, the vapor is difficult to control, contaminating the chamber and the back of the test piece, affecting the quality of the film layer.
A device for preparing membrane layers in perovskite batteries is designed, including a cavity, a growth assembly, an evaporation assembly and a condensation assembly. The evaporation assembly evaporates the material into gas through temperature control, and the condensation assembly uses coolant to keep the temperature around the cavity low. The cold air squeezes hot air and steam, so that the steam flows to the growth assembly and deposits.
The directional deposition of vapor of the membrane layer material is achieved, the pollution of the sensor in the chamber and the back of the test piece is reduced, the uniformity and quality of the perovskite film is improved, and the preparation process is simplified.
Smart Images
Figure CN120099463A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to, specifically, a device for preparing a membrane layer in a perovskite battery, a preparation method and a perovskite battery. Background Art
[0002] At present, in the preparation of perovskite solar cells, the method of first depositing inorganic salts and then depositing formamidinium iodide (FAI) is often used. Specifically, a layer of inorganic salt material is first deposited on the substrate, and then FAI is heated to evaporate it, and an attempt is made to allow the FAI vapor to deposit on the substrate to form a perovskite film.
[0003] However, there is a significant problem in the prior art: due to the characteristics of FAI materials, the evaporation process is extremely discrete, which makes it difficult to effectively control the FAI vapor and deposit it on the substrate in a direction. This causes the FAI vapor to permeate the entire chamber, not only contaminating the sensor in the chamber, but also affecting the quality of the back of the test piece. Summary of the invention
[0004] The present application provides a device for preparing a film layer in a perovskite cell, a preparation method and a perovskite cell, so as to solve the problem in the related art that the film layer in the perovskite solar cell has large discreteness of material evaporation and contaminates the chamber and the back of the test piece during the preparation process.
[0005] According to one aspect of the present application, there is provided an apparatus for preparing a film layer in a perovskite battery, comprising: a cavity having an inner surface formed by connecting a plurality of surfaces; a growth component located on a first surface of the cavity, for growing the film layer on a substrate; an evaporation component located on a second surface of the cavity, for evaporating the material of the film layer, the evaporation component comprising a temperature control component and an evaporation platform, the evaporation platform being used to heat the material, and the temperature control component being used to control the temperature of the evaporation platform; a condensation component, the condensation component being located on at least one of the surfaces other than the first surface and the second surface, for performing zone cooling in the cavity, and the condensation component having a coolant inside.
[0006] Optionally, the first surface and the second surface are located at opposite positions in the cavity.
[0007] Optionally, the device includes at least one first condensation component, which is located on the outer wall of the growth component and arranged circumferentially, and the height of the first condensation component in the direction perpendicular to the first surface is less than or equal to the height of the growth component.
[0008] Optionally, the device comprises at least one second condensation component, wherein the second condensation component is located on an area of the second surface other than the evaporation component.
[0009] Optionally, the temperature control component includes a heating component and a temperature measuring component, wherein the heating component is located on a side of the evaporation platform close to the second surface, the temperature measuring component is in contact with the evaporation platform, the temperature measuring component is used to measure the temperature of the evaporation platform, and the heating component is used to heat the evaporation platform.
[0010] Optionally, the condensation component includes a liquid outlet and a liquid inlet, the liquid inlet is used to input the coolant into the condensation component, and the liquid inlet is used to discharge the coolant from the condensation component.
[0011] According to another aspect of the present application, a method for preparing a membrane layer in a perovskite battery is provided, wherein the membrane layer is prepared using any one of the devices for preparing a membrane layer in a perovskite battery.
[0012] According to another aspect of the present application, a perovskite cell is provided, the perovskite cell comprising a perovskite layer, the perovskite layer comprising a first film layer and a second film layer stacked, wherein the material of the first film layer comprises an inorganic material, and the second film layer comprises a film layer prepared by the method for preparing the film layer in the perovskite cell.
[0013] Optionally, the material of the second film layer includes formamidinium iodine.
[0014] Optionally, the temperature of the evaporation component in the device for preparing the membrane layer in the perovskite battery is 200-250°C.
[0015] By applying the technical solution of the present application, a device for preparing a film layer in a perovskite battery is provided, the device having a cavity with an inner surface formed by connecting multiple surfaces, a growth component located on the first surface of the cavity, and used to grow a film layer on a substrate; an evaporation component located on the second surface of the cavity, and used to evaporate the material of the film layer, the evaporation component comprising a temperature control component and an evaporation platform, the evaporation platform being used to heat the material so that the material evaporates into a gas, the temperature control component being used to control the temperature of the evaporation platform so as to control the temperature of the evaporation platform according to the different materials; a condensation component being provided on at least one surface other than the first surface and the second surface, the condensation component being used to perform zone cooling in the cavity, and a coolant being provided inside the condensation component. Among them, a condensation component is installed around the cavity, and there is a coolant in the condensation component, which can keep the cavity at a low temperature. In the process of preparing the film layer to evaporate the material, the evaporation component heats the material to be evaporated to evaporate and form steam; using the density advantage of cold air, the cold air around the condensation component will squeeze the hot air and the vapor of the evaporation material, so that the vapor of the evaporation material evaporates from the evaporation component and flows to the growth component in a directional manner, and deposits on the substrate to form a film, so as to achieve directional deposition of the vapor of the film material, significantly reducing the contamination of the sensor in the chamber and the back of the test piece. At the same time, the uniformity and quality of the perovskite film are improved, and the preparation process is simplified, and high-quality perovskite film preparation can be achieved without complex deposition parameter optimization. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0017] Figure 1 is a schematic diagram of the cross-sectional structure of a device for preparing a membrane layer in a perovskite battery provided in an embodiment of the present application;
[0018] Figure 2 is a schematic cross-sectional structure diagram of another device for preparing a membrane layer in a perovskite battery provided in an embodiment of the present application;
[0019] Figure 3 It is a flow chart of a method for preparing a membrane layer in a perovskite battery according to an embodiment of the present application.
[0020] The above drawings include the following reference numerals:
[0021] 1. Cavity; 11. First surface; 12. Second surface; 20. Growth component; 21. Substrate; 30. Evaporation component; 31. Temperature control component; 32. Evaporation platform; 40. Condensation component; 41. First condensation component; 42. Second condensation component; 43. Third condensation component. DETAILED DESCRIPTION
[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0023] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.
[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0025] As described in the background technology, the perovskite solar cell film layer in the prior art contains materials with large discreteness after evaporation, such as formamidinium iodine, which makes it difficult to effectively control its vapor and deposit it on the substrate in a directionally controlled manner, so that its vapor permeates the entire chamber, not only contaminating the sensor in the chamber, but also affecting the quality of the back of the test piece. In order to solve the above problems, the present application provides a device for preparing a film layer in a perovskite cell, a preparation method, and a perovskite cell.
[0026] According to one aspect of the present application, a device for preparing a membrane layer in a perovskite battery is provided, such as Figure 1 to Figure 2 As shown, the device includes: a cavity 1 having an inner surface formed by connecting multiple surfaces; a growth component 20, located on the first surface 11 of the cavity 1, and used to grow a film layer on a substrate 21; an evaporation component 30, located on the second surface 12 of the cavity 1, and used to evaporate the material of the film layer, the evaporation component 30 includes a temperature control component 31 and an evaporation platform 32, the evaporation platform 32 is used to heat the material, and the temperature control component 31 is used to control the temperature of the evaporation platform 32; a condensation component 40, the condensation component 40 is at least located on a surface other than the first surface 11 and the second surface 12, and is used to cool the cavity 1 in different areas, and the condensation component 40 has a coolant inside.
[0027] The above-mentioned device for preparing the film layer in the perovskite battery has a cavity with multiple surfaces connected to form an inner surface, the growth component is located on the first surface of the cavity, and is used to grow the film layer on the substrate; the evaporation component is located on the second surface of the cavity, and is used to evaporate the material of the film layer. The evaporation component includes a temperature control component and an evaporation platform, and the evaporation platform is used to heat the material to evaporate the material into gas. The temperature control component is used to control the temperature of the evaporation platform so as to control the temperature of the evaporation platform according to the different materials; at least on the surface other than the first surface and the second surface, there is a condensation component, and the condensation component is used to cool the cavity in different areas, and there is a coolant inside the condensation component. Among them, the condensation component is installed around the cavity, and the condensation component has a coolant inside, which can keep the cavity around at a low temperature. In the process of preparing the film layer to evaporate the material, the evaporation component heats the material to be evaporated to evaporate it to form vapor; using the density advantage of cold air, the cold air around the condensation component will squeeze the hot air and the vapor of the evaporation material, so that the vapor of the evaporation material evaporates from the evaporation component and flows to the growth component in a directional manner, and is deposited on the substrate to form a film, so as to realize the directional deposition of the vapor of the film material, which can significantly reduce the contamination of the sensor in the chamber and the back of the test piece. At the same time, the uniformity and quality of the perovskite film are improved, while the preparation process is simplified, and high-quality perovskite film preparation can be achieved without complex deposition parameter optimization.
[0028] In some optional embodiments, such as Figure 1 to Figure 2 As shown, the first surface 11 and the second surface 12 are located at opposite positions in the cavity 1 .
[0029] Specifically, the evaporation component and the growth component are located at relative positions in the cavity, so that the vapor of the film material can flow directly from the evaporation component to the opposite growth component, and the surrounding of the condensation component can effectively guide the flow direction of the vapor, reduce the discreteness of the vapor in the chamber, make the deposition process more accurate, and the vapor is directly deposited on the substrate, improving the deposition efficiency and uniformity of the film. Since the vapor is precisely controlled, the amount of vapor deposited on the substrate is more uniform, reducing film defects such as holes and uneven particles caused by uneven vapor flow, thereby improving the quality of the perovskite film. The evaporation component and the growth component are located in relative positions, and the vapor flow path and the deposition process are better controlled. The distance between the evaporation component and the growth component, the evaporation temperature and the cooling efficiency of the condensation plate can be accurately controlled, which significantly improves the controllability of the deposition process, makes the film characteristics prepared each time more consistent, improves the repeatability of the process, simplifies the process flow, and reduces the technical difficulty. At the same time, the relative position of the evaporation component and the growth component helps to optimize the internal design of the chamber, making the equipment more compact, while ensuring the smooth flow of the vapor flow path, more efficient space utilization, and conducive to the miniaturization and cost optimization of the equipment.
[0030] Furthermore, the first surface is located on the upper surface of the cavity, and the second surface is located on the lower surface of the cavity.
[0031] Specifically, when there is coolant in the condensation component, the condensation component has a lower temperature, and the air around it is also cooled accordingly, and the density increases. At the same time, after the evaporation component is heated, the temperature is higher, and its density is smaller than the surrounding cold air. In a closed chamber, since the density of hot air is lower, it will naturally rise, while the density of cold air is higher, it will sink. The steam evaporated from the evaporation component at the bottom of the cavity will rise to the substrate of the growth component at the top of the cavity, and condense into a film on the substrate. This directional deposition helps to improve the uniformity and quality of the thin film, while reducing contamination of other sensitive components in the chamber (such as sensors), while improving the efficiency of deposition and reducing the need for equipment maintenance.
[0032] In some optional embodiments, such as Figure 2 As shown, the condensation component 40 includes at least one first condensation component 41, which is located on the outer wall of the growth component 20 and is arranged circumferentially. The height of the first condensation component 41 in the direction A perpendicular to the first surface 11 is less than or equal to the height of the growth component 20.
[0033] Specifically, by arranging a condensation assembly on the outer wall of the growth assembly and along the circumference, the flow of the vapor of the film material can be further guided so that it is deposited more concentratedly toward the substrate on the growth assembly, thereby improving the directionality and accuracy of the deposition, ensuring uniform coverage of the film, and reducing the ineffective diffusion of the vapor, so that more vapor can be deposited on the substrate, improving the deposition efficiency and material utilization. During the deposition process, the film at the edge of the substrate often has poor deposition quality due to the unevenness of the vapor flow. The condensation plate around the substrate can reduce the deposition of vapor at the edge, prevent the film edge from being too thick or discontinuous, and ensure the consistency of the quality of the entire film surface. In addition, in the traditional thermal evaporation process, the vapor may be deposited on the back of the substrate, affecting subsequent processing or battery performance. The condensation plate around the substrate can effectively block the vapor from reaching the back of the substrate, reduce pollution, and protect the cleanliness of the back of the substrate.
[0034] Furthermore, if Figure 2 As shown, the device includes at least one third condensation component 43, which is located on the first surface 11 in an area other than the growth component 20. The directional deposition of the film material vapor can be better controlled to reduce the contamination of the sensor in the chamber and the back of the test piece.
[0035] In some specific implementation methods, such as Figure 2As shown, the device includes at least one second condensation assembly 42 , and the second condensation assembly 40 is located on an area of the second surface 12 other than the evaporation assembly 30 .
[0036] Specifically, installing a condensation component around the condensation component can effectively control the initial distribution of the film material vapor, reduce the diffusion of vapor to non-target areas, ensure that more vapor can reach the substrate in a targeted manner, and improve deposition efficiency and film uniformity. At the same time, installing a condensation component can significantly reduce the contamination of the film material vapor to the evaporation component and other internal components of the chamber, which not only protects the cleanliness of the equipment and extends the service life of the equipment, but also reduces subsequent maintenance and cleaning work, indirectly improving the stability and reliability of the deposition process. At the same time, it reduces the cost of cleaning and maintaining internal components of the chamber.
[0037] In some optional embodiments, the temperature control component includes a heating component and a temperature measuring component, wherein the heating component is located on a side of the evaporation platform close to the second surface, the temperature measuring component is in contact with the evaporation platform, the temperature measuring component is used to measure the temperature of the evaporation platform, and the heating component is used to heat the evaporation platform.
[0038] Specifically, the heating component may include a quartz lamp, a heating wire, etc., to heat the evaporation platform. During the heating process, the evaporation rate of the material can be controlled by adjusting the power of the heating component, and then the deposition rate can be adjusted to ensure that the thickness and quality of the perovskite film meet the requirements. In addition, since the heating component is located inside the evaporation platform and the surface of the cavity, it will not affect the temperature distribution in the cavity, nor will it affect the effect of the directional flow of the vapor of the film material. In addition, the temperature measuring component is in contact with the evaporation platform, and can accurately measure the temperature of the evaporation platform, ensuring that the film material is heated to its evaporation temperature without decomposition due to overheating, thereby improving material utilization and reducing production costs.
[0039] In some optional embodiments, the condensation component includes a liquid outlet and a liquid inlet, the liquid inlet is used to input cooling liquid into the condensation component, and the liquid inlet is used to discharge the cooling liquid from the condensation component.
[0040] Specifically, the condensation assembly has a liquid outlet and a liquid inlet, and the condensate enters the condensation assembly through the liquid inlet, and the condensate in the condensation assembly is discharged from the liquid outlet, so as to maintain the temperature of the condensate in the condensation assembly, maintain the temperature around the cavity at a low temperature, thereby achieving directional deposition of the vapor of the film material, and significantly reducing the contamination of the sensor in the chamber and the back of the test piece.
[0041] Furthermore, a cooling liquid channel is provided in the condensation assembly, one end of the channel is connected to the liquid outlet, and the other end of the channel is connected to the liquid inlet. The condensate entering from the liquid inlet flows in the channel, wherein the condensate lowers the temperature in the cavity, thereby increasing the temperature of the condensate, and the condensate with increased temperature is discharged from the liquid outlet, and the pipeline is filled with new condensate to maintain the low temperature of the air around the cavity. In addition, the arrangement of the pipeline in the condensation assembly can make the low temperature in the cavity more uniform, increase the uniformity of the directional deposition of the film material vapor, and significantly reduce the contamination of the sensor in the chamber and the back of the test piece.
[0042] According to another aspect of the present application, a method for preparing a membrane layer in a perovskite battery is provided, and the membrane layer is prepared using any device for preparing a membrane layer in a perovskite battery.
[0043] The above-mentioned preparation method and the above-mentioned device for preparing the film layer in the perovskite battery have a growth component located on the first surface of the cavity, which is used to grow the film layer on the substrate; an evaporation component is located on the second surface of the cavity, which is used to evaporate the material of the film layer to form vapor; a condensation component is installed on the other surfaces of the cavity, and a coolant is contained in the condensation component to keep the cavity at a low temperature. By utilizing the density advantage of cold air, the cold air around the condensation component will squeeze the hot air and the vapor of the evaporation material, so that the vapor of the evaporation material evaporates from the evaporation component and flows to the growth component in a directional manner, and is deposited on the substrate to form a film, so as to achieve the directional deposition of the vapor of the film material, and significantly reduce the contamination of the sensor in the chamber and the back of the test piece. At the same time, the preparation method of the film layer in the perovskite battery can significantly improve the uniformity and crystal quality of the perovskite film and reduce microstructural defects by precisely controlling the flow path and deposition conditions of the vapor of the film material, which is crucial to improving the photoelectric conversion efficiency and stability of the perovskite battery. In addition, the process flow of film deposition in perovskite cells has been simplified, reducing the reliance on complex parameter optimization, making the thermal evaporation deposition method easier to control and mass-produce, improving the production efficiency of perovskite cells and helping to reduce costs.
[0044] The following will describe in more detail the exemplary embodiments of the method for preparing the perovskite solar cell provided by the present application in conjunction with the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.
[0045] This embodiment relates to a specific method for preparing a membrane layer in a perovskite battery, such as Figure 3 As shown, the following steps are included:
[0046] Step S1: Pre-deposition is performed on the surface of a substrate to form an inorganic material film layer, so as to form a first perovskite layer on the substrate.
[0047] Step S2: providing a device for preparing a membrane layer in a perovskite cell, and fixing a substrate including a first perovskite layer on a growth component.
[0048] Specifically, in the cavity of the device, at least on the surface where the growth component and the evaporation component are located, a condensation component is arranged, and a cooling liquid channel is provided in the condensation plate, which is connected to the external cooling system. After the cooling liquid is introduced, the low temperature state of the condensation plate is maintained.
[0049] Step S3: using an evaporation component to evaporate the organic material placed on the evaporation platform into gas to form organic material vapor.
[0050] Specifically, due to the greater density of cold air, the cold air around the condensation plate will squeeze the hot air and the vapor of the organic material, causing the vapor of the organic material to flow directionally to the first perovskite layer on the substrate.
[0051] Step S4: The vapor of the organic material is condensed and deposited on the first perovskite layer on the substrate to form a second perovskite layer, wherein the first perovskite layer and the second perovskite layer constitute the perovskite layer of the perovskite cell.
[0052] Step S5: Annealing and packaging the perovskite layer to complete the preparation of the perovskite solar cell.
[0053] According to another aspect of the present application, a perovskite cell is provided, comprising a perovskite layer, the perovskite layer comprising a first film layer and a second film layer stacked, wherein the material of the first film layer comprises an inorganic material, and the second film layer comprises a film layer prepared by any one of the methods for preparing a film layer in a perovskite cell.
[0054] In the above preparation method, the inorganic material layer is deposited first, and then the organic material layer is deposited. Because the organic material has a large discreteness, the organic material vapor is difficult to be effectively controlled and deposited on the substrate in a directionally manner. This causes the organic material vapor to permeate the entire chamber, resulting in contamination of the sensor in the chamber and reducing the quality of the back of the battery. The organic film layer is prepared by the above-mentioned method for preparing the film layer in the perovskite battery. The condensation component in the above-mentioned device for preparing the film layer in the perovskite battery can realize the directional deposition of the vapor of the organic material. While reducing the contamination of the sensor in the cavity and the back of the test piece, the cold air effectively guides the flow direction of the vapor of the organic material, reducing its discreteness in the cavity, making the deposition process more precise, and the vapor is directly deposited on the substrate. The amount of organic material vapor deposited on the substrate is more uniform, reducing the film defects caused by uneven vapor flow, such as holes and uneven particles, thereby improving the quality and uniformity of the perovskite film.
[0055] Specifically, the perovskite layer in the perovskite solar cell is a photoelectric conversion layer, and its main function is to convert light energy into electrical energy. Perovskite materials have excellent light absorption and charge transfer properties, and can effectively absorb photons and convert them into electrons and positive holes, thereby generating current. Therefore, the perovskite layer directly affects the photoelectric conversion efficiency and performance of the battery. The perovskite layer includes a first film layer and a second film layer arranged in a stacked manner, wherein the first film layer includes an inorganic material, which can form a better perovskite film layer, which is beneficial to improving the photoelectric conversion efficiency, and the second film layer is an organic material, which can enhance the stability of the perovskite film, extend the service life of the battery, and improve the electron transmission and ion transmission performance, thereby improving the performance of the battery. Moreover, in terms of the preparation method, the preparation scheme of first depositing inorganic materials and then depositing organic materials is relatively simple and easy to control, and is suitable for large-scale production.
[0056] In some optional embodiments, the material of the second film layer includes formamidine iodine.
[0057] Specifically, Formamidinium Iodide (FAI) is a solid at normal pressure, and its sublimation temperature is relatively low, so it can be directly converted from solid to gas at an appropriate temperature. When FAI vapor encounters a cooling surface, it does not condense directly into a liquid, but recrystallizes into a solid. This is because the condensation process of FAI is usually from solid to gas and then to solid, rather than from solid to gas and then to liquid. In the preparation process of perovskite solar cells, this characteristic of FAI is utilized, and by controlling the temperature and pressure conditions, it is recrystallized on the substrate to form a perovskite film. This process helps to improve the uniformity and quality of the film, thereby improving the performance of solar cells.
[0058] In some optional embodiments, the temperature of the evaporation component in the device is 200-250°C.
[0059] Specifically, the sublimation temperature of formamidinium iodine is between 100°C and 150°C. However, in the actual thermal evaporation preparation process, in order to ensure the stability of FAI vapor and the deposition quality, the temperature of the evaporation source is usually controlled in a higher range, between 200°C and 250°C. This temperature range helps to generate a sufficient amount of FAI vapor while maintaining the stability of the vapor, ensuring a uniform and efficient deposition process.
[0060] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.
[0061] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.
Claims
1. A device for preparing a membrane layer in a perovskite battery, characterized in that: include: A cavity having an inner surface formed by connecting a plurality of surfaces; A growth component, located on the first surface of the cavity, for growing the film layer on the substrate; an evaporation component, located on the second surface of the chamber, and used to evaporate the material of the film layer, the evaporation component comprising a temperature control component and an evaporation platform, the evaporation platform is used to heat the material, and the temperature control component is used to control the temperature of the evaporation platform; A condensation component is located at least on the surface other than the first surface and the second surface, and is used for partitioning the temperature in the cavity. There is a coolant inside the condensation component.
2. The device according to claim 1, characterized in that The first surface and the second surface are located at opposite positions in the cavity.
3. The device according to claim 1, characterized in that The device includes at least one first condensation component, which is located on the outer wall of the growth component and arranged circumferentially, and the height of the first condensation component in the direction perpendicular to the first surface is less than or equal to the height of the growth component.
4. The device according to claim 1, characterized in that The device includes at least one second condensation component located on an area of the second surface other than the evaporation component.
5. The device according to any one of claims 1 to 4, characterized in that The temperature control component includes a heating component and a temperature measuring component, wherein the heating component is located on a side of the evaporation platform close to the second surface, the temperature measuring component is in contact with the evaporation platform, the temperature measuring component is used to measure the temperature of the evaporation platform, and the heating component is used to heat the evaporation platform.
6. The device according to any one of claims 1 to 4, characterized in that The condensing component comprises a liquid outlet and a liquid inlet, wherein the liquid inlet is used to input the cooling liquid into the condensing component, and the liquid inlet is used to discharge the cooling liquid from the condensing component.
7. A method for preparing a membrane layer in a perovskite battery, characterized in that: The membrane layer is prepared using the device for preparing the membrane layer in a perovskite battery as described in any one of claims 1 to 6.
8. A perovskite battery, characterized in that: The perovskite cell comprises a perovskite layer, and the perovskite layer comprises a first film layer and a second film layer which are stacked, wherein the material of the first film layer comprises an inorganic material, and the second film layer comprises a film layer prepared by the method for preparing a film layer in a perovskite cell according to claim 7.
9. The perovskite cell according to claim 8, characterized in that: The material of the second film layer includes formamidinium iodide.
10. The perovskite battery according to claim 9, characterized in that: The temperature of the evaporation component in the device for preparing the membrane layer in the perovskite battery is 200-250°C.