Production equipment of perovskite solar cell

Abstract

The utility model discloses production equipment of a perovskite solar cell. The production equipment comprises a workbench; the movable carrying device is mounted on the workbench in a sliding manner, and the movable carrying device is used for carrying and transporting a base; the ink-jet printing device is mounted on the workbench and is arranged above the movable object carrying device; and the drying device is installed on the workbench and arranged above the movable carrying device, and the drying device is located on the downstream of the ink-jet printing device in the conveying direction of the substrate. The production equipment of the perovskite solar cell can improve the production efficiency of the perovskite solar cell.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar cell production equipment, and in particular relates to production equipment for a perovskite solar cell. Background Art

[0002] At present, the technical solution for forming the perovskite functional layer (absorption layer) of perovskite solar cells is usually a one-step method, that is, the perovskite solution is coated on the substrate (including rigid substrates such as glass substrates, or flexible substrates, or silicon wafers, or ceramics) by slit coating. Other film layers of perovskite solar cells or other thin-film solar cells, including buffer layers (interface regulation layers), hole transport layers, electron transport layers, etc., are usually formed by magnetron sputtering (PVD), vacuum evaporation, or atomic layer deposition (ALD).

[0003] Whether it is slit coating or vacuum process (including PVD, vacuum evaporation and ALD), the deposition of various functional layers for thin-film solar cells faces problems such as slow production cycle, large equipment footprint and high energy consumption in the production process.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a production device for perovskite solar cells, which can improve the production efficiency of perovskite solar cells.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a production device of a perovskite solar cell, comprising:

[0007] Workbench;

[0008] A mobile loading device, slidably mounted on the workbench, and used for loading and transporting a substrate;

[0009] An inkjet printing device, mounted on the workbench and arranged above the mobile loading device;

[0010] The drying device is installed on the workbench and arranged above the movable loading device. Along the transport direction of the substrate, the drying device is located downstream of the inkjet printing device.

[0011] In one or more embodiments of the present utility model, a linear motion mechanism is provided on the workbench, and the linear motion mechanism includes a slide rail, and the mobile loading device is slidably installed on the slide rail.

[0012] In one or more embodiments of the utility model, a plurality of movable carriers are slidably connected to the slide rail, and the movable carriers include a carrier seat and a carrier mechanism installed on the carrier seat, the carrier seat is slidably connected to the linear motor slide rail, and the carrier mechanism is used to carry the substrate.

[0013] In one or more embodiments of the present utility model, the production equipment of the perovskite solar cell includes a loading device and a unloading device installed on a workbench, the mobile carrier is arranged between the loading device and the unloading device, and the mobile carrier also includes a lifting mechanism installed on a carrier seat, and the carrier mechanism is installed on the lifting mechanism.

[0014] In one or more embodiments of the present invention, the linear motion mechanism includes two slide rails that are spaced apart from each other, and the mobile loading device is slidably mounted on the slide rails.

[0015] In one or more embodiments of the present utility model, the mobile loading device further comprises a horizontal moving mechanism installed on the lifting mechanism, and the loading mechanism is installed on the horizontal moving mechanism.

[0016] In one or more embodiments of the present invention, the production equipment of the perovskite solar cell includes an image detection device installed on a workbench. In the transportation direction of the substrate, the image detection device is located upstream of the inkjet printing device and is used to capture the image of the substrate on the mobile carrier.

[0017] In one or more embodiments of the present utility model, the mobile loading device further comprises a horizontal rotation mechanism installed on the lifting mechanism, and the loading mechanism is installed on the horizontal rotation mechanism.

[0018] In one or more embodiments of the present invention, the carrying mechanism comprises a paper roll transmission belt, and the paper roll transmission belt is used to carry and transport the substrate.

[0019] In one or more embodiments of the present invention, the loading mechanism further comprises a vacuum absorber, which is disposed below the paper roll transmission belt and is used to absorb the substrate onto the paper roll transmission belt.

[0020] Compared with the prior art, the production equipment of the perovskite solar cell of the utility model forms a functional layer (film) on a substrate by inkjet printing through an inkjet printing device, replacing the existing functional layer preparation device, thereby improving the preparation efficiency of the functional layer, that is, improving the production efficiency of the perovskite solar cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional schematic diagram of a production device for a perovskite solar cell in one embodiment of the utility model;

[0023] Figure 2 A top view of a production device for a perovskite solar cell in one embodiment of the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of a mobile loading device in one embodiment of the utility model.

[0025] Description of main reference numerals:

[0026] 1. Workbench; 11. Table; 12. Linear motion mechanism; 121. Slide rail; 2. Mobile loading device; 21. Loading seat; 22. Loading mechanism; 221. Paper roll transmission belt; 23. Lifting mechanism; 24. Horizontal moving mechanism; 25. Horizontal rotating mechanism; 3. Inkjet printing device; 4. Drying device; 5. Loading device; 6. Unloading device; 7. Image detection device; 8. Base. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] As mentioned in the background art, in the preparation process of perovskite tandem solar cells (also known as perovskite tandem solar cells), the perovskite tandem solar cells generally include a bottom cell and a top cell, and the preparation process generally uses the bottom cell as a substrate 8, and then sequentially prepares the various layers of the top cell (including the perovskite functional layer) on the bottom cell to form the top cell. In the prior art, the process for mass-preparing the perovskite functional layer (also known as the absorption layer, etc.) of the top cell is generally a slit coating process, but this process has the disadvantages of slow production cycle and inability to form special patterns.

[0029] Among them, the substrate 8 can be considered as a bottom cell or a processed product of the bottom cell (that is, one or more functional layers or membrane structures have been formed on the bottom cell). In order to better introduce the production equipment of the perovskite solar cell, in the description of this embodiment, the processed product of the bottom cell is used as the substrate 8, that is, an inorganic salt layer has been formed on the bottom cell, and the ink in the inkjet printing device 3 is a perovskite organic ink. That is, the prior art uses slit coating to form a perovskite organic layer on the inorganic salt layer, or directly uses slit coating to coat the perovskite solution.

[0030] like Figure 1 to Figure 3 As shown, the production equipment of perovskite solar cells in one embodiment of the utility model includes a workbench 1, a mobile carrier 2, an inkjet printing device 3 and a drying device 4; the mobile carrier 2 is slidably installed on the workbench 1, and the mobile carrier 2 is used to carry and transport the substrate 8; the inkjet printing device 3 is installed on the workbench 1 and is arranged above the mobile carrier 2; the drying device 4 is installed on the workbench 1 and is arranged above the mobile carrier 2, and along the transportation direction of the substrate 8, the drying device 4 is located downstream of the inkjet printing device 3.

[0031] It should be noted that the inkjet printing device 3 uses inkjet printing to print the perovskite organic ink onto the inorganic salt layer of the substrate 8, and then under the action of the drying device 4, the solvent in the perovskite organic ink evaporates, and an organic salt layer is formed on the inorganic salt layer, and the organic salt reacts and crystallizes with the inorganic salt to form a perovskite functional layer (absorption layer). Among them, the inorganic salt layer, the perovskite organic ink, and the process of the organic salt and the inorganic salt reacting and crystallizing to form the perovskite functional layer are all existing materials and reaction processes in the prior art. Among them, the drying device can be a common drying equipment on the market, which is used to dry, solidify or crystallize the substrate after inkjet.

[0032] It can be understood that the production equipment of the perovskite solar cell of the utility model forms a functional layer or functional film (such as the above-mentioned organic salt layer) on the substrate 8 by inkjet printing through the inkjet printing device 3, replacing the existing functional layer preparation device, thereby improving the preparation efficiency of the functional layer, that is, improving the production efficiency of the perovskite solar cell.

[0033] like Figure 1 As shown, in this embodiment, the workbench 1 is provided with a linear motion mechanism 12, the linear motion mechanism 12 includes a slide rail 13, and the mobile object carrier 2 is slidably mounted on the slide rail 13. It can be understood that the workbench 1 is provided with an interactive linear motion mechanism 12, and the slide rail 13 plays a role in limiting the movement direction of the mobile object carrier 2.

[0034] Among them, the linear motion mechanism 12 also includes a stepper motor or an electric cylinder or other existing linear drive (not shown in the figure), and each mobile carrier 2 can be connected to a stepper motor or an electric cylinder or other existing linear drive equipment or devices to drive the mobile carrier 2 to perform reciprocating linear motion on the slide rail 13, thereby improving the degree of automation of the entire equipment.

[0035] Preferably, Figure 2 and 3 As shown, a plurality of movable loading devices 2 are slidably connected to the slide rail 13 , and the movable loading device 2 includes a loading seat 21 and a loading mechanism 22 mounted on the loading seat 21 . The loading seat 21 is slidably connected to the slide rail 13 , and the loading mechanism 22 is used to carry the substrate 8 .

[0036] It is understandable that the conveyor belts or robotic arms of the transportation devices on other equipment can transport the substrate 8 to different mobile carriers 2 respectively. Since it takes time for the mobile carrier 2 to receive the substrate 8, transport the substrate 8 to the inkjet printing device 3 and the drying device 4, and perform inkjet printing and drying, in order to improve the working efficiency of the entire equipment, multiple mobile carriers 2 (multiple refers to two or more) are slidably connected to the slide rail 13.

[0037] For example, when one mobile carrier 2 is located below the inkjet printing device 3 to perform inkjet printing, other mobile carriers 2 can simultaneously receive the substrate 8 and / or dry the substrate 8 after inkjet printing. In this embodiment, two mobile carriers 2 can be installed on each slide rail 13. In other embodiments, more mobile carriers 2 can be installed on each slide rail 13.

[0038] Further, such as Figure 1 and 2 As shown, the production equipment of perovskite solar cells includes a loading device 5 and a unloading device 6 installed on a workbench 1, a mobile carrier 2 is arranged between the loading device 5 and the unloading device 6, the mobile carrier 2 also includes a lifting mechanism 23 installed on a carrier seat 21, and a carrier mechanism 22 is installed on the lifting mechanism 23.

[0039] The loading device 5 and the unloading device 6 can both be existing loading mechanisms such as conveyor belts or conveyor lines. When loading is required, the loading mechanism 22 of each mobile loading device 2 is horizontally close to the unloading position of the loading device 5, and then the loading device 5 transports the substrate 8 to the loading mechanism 22. The loading device 5 and the unloading device 6 can be aligned with or matched with the transportation mechanism or transportation components of other equipment.

[0040] It should be noted that, since a plurality of mobile carriers 2 may be slidably connected to a slide rail 13, during loading, along the transport direction of the substrate 8, the mobile carrier 2 located upstream can be moved to the bottom of the loading device 5, and the height of the carrier 22 can be adjusted by the lifting mechanism 23, so that the mobile carrier 2 located upstream is moved to the bottom of the loading device 5, and the mobile carrier 2 located downstream adjusts the height of the carrier 22 through the lifting mechanism 23 so that it is close to and aligned with the unloading position of the loading device 5 in terms of horizontal height, that is, the substrate 8 is preferentially transported to the mobile carrier 2 located downstream, and after the loading of the mobile carrier 2 located downstream is completed, when the subsequent steps are performed, the mobile carrier 2 located upstream moves to the unloading position of the loading device 5, and the height of the carrier 22 can be adjusted by the lifting mechanism 23 to achieve loading. The above process can improve the production and processing efficiency of the equipment.

[0041] The unloading process is similar to the loading process. The mobile loading device 2 located downstream unloads the materials first, and then hides under the unloading device 6, allowing the mobile loading device 2 located upstream to unload the materials.

[0042] The lifting mechanism 23 may include a lifting motor or an electric cylinder or a pneumatic cylinder, and a mounting seat or other connecting parts that cooperate therewith.

[0043] Furthermore, the linear motion mechanism 12 includes two slide rails 13 that are spaced apart from each other, and each slide rail 13 is slidably connected to a plurality of movable loading devices 2 .

[0044] It is understandable that when all the mobile carriers 2 on one slide rail 13 have finished loading, a new loading process can only be carried out after all the mobile carriers 2 on the slide rail 13 have finished unloading. That is, after the most upstream mobile carrier 2 on the slide rail 13 has finished loading, it is necessary to wait until it unloads before a new loading process can be carried out. Therefore, in order to further improve production efficiency, two slide rails 13 can be set. When all the mobile carriers 2 on one slide rail 13 have finished loading, the mobile carrier 2 on the other slide rail 13 can load; or the mobile carriers 2 on the two slide rails 13 load alternately.

[0045] Of course, the loading device 5 and the unloading device 6 may also be provided with two sets of conveyor belts or conveyor lines respectively, corresponding to each slide rail 13 respectively.

[0046] After a lot of tests by the inventors and the specific raw materials and steps of the processing layer of the device, in this embodiment, the inkjet printing device 3 uses inkjet to spray the perovskite organic ink onto the inorganic salt layer of the substrate 8. Two slide rails 13 are arranged on the device, and the efficiency of each slide rail 13 is the highest.

[0047] Preferably, the mobile carrier 2 further comprises a horizontal moving mechanism 24 mounted on the lifting mechanism 23, and the carrier 22 is mounted on the horizontal moving mechanism 24. Since the linear motion mechanism 12 comprises two slide rails 13 arranged at intervals, and since the carrier 22 on each mobile carrier 2 may not be aligned with the inkjet printing device 3, the horizontal moving mechanism 24 can enable the carrier 22 to move horizontally to directly below the inkjet printing device 3.

[0048] like Figure 1 and 2 As shown, the production equipment of perovskite solar cells includes an image detection device 7 installed on a workbench 1. In the transportation direction of the substrate 8, the image detection device 7 is located upstream of the inkjet printing device 3 and is used to capture the image of the substrate 8 on the mobile carrier 2. The image detection device 7 can capture the image of the substrate 8 carried on the carrier mechanism 22 of the mobile carrier 2, which can be used to confirm whether the carrier mechanism 22 carries the substrate 8, so as to avoid the inkjet printing device 3 from spraying ink on the carrier mechanism 22 that does not carry the substrate 8, thereby contaminating the carrier mechanism 22.

[0049] Furthermore, the mobile object carrier 2 further includes a horizontal rotation mechanism 25 installed on the lifting mechanism 23, and the object carrier 22 is installed on the horizontal rotation mechanism 25. That is, the image detection device 7 can capture the image of the substrate 8 carried by the object carrier 22 of the mobile object carrier 2, and can also be used to determine the placement angle of the substrate 8. Once the placement angle of the substrate 8 is incorrect, the horizontal rotation mechanism 25 can control the object carrier 22 to rotate in the horizontal plane, so as to rotate the substrate 8 on the substrate carrier 22 to the correct or required placement angle (i.e., correct the position of the substrate), which is convenient for the subsequent inkjet process of the inkjet printing device 3.

[0050] The horizontal rotation mechanism 25 may include an existing rotation motor or other drive motor and connection components, as long as it can control the rotation of the object-carrying mechanism 22 .

[0051] Specifically, the object-carrying mechanism 22 includes a paper roll transmission belt 221, and the paper roll transmission belt 221 is used to carry and transport the substrate 8. The object-carrying mechanism 22 also includes an object-carrying driving assembly for driving the paper roll transmission belt 221. The object-carrying driving assembly is an existing component, such as a motor and a rotating roller group. The paper roll transmission belt 221 plays a role in moving the substrate 8 to the center of the object-carrying mechanism 22 or a position close to the middle as much as possible to prevent the substrate 8 from falling when the mobile object-carrying device 2 moves.

[0052] In this embodiment, the carrying mechanism 22 includes two spaced apart motorized rollers, and both ends of the paper roll transmission belt 221 are respectively wound around the two motorized rollers. The rotation of the two spaced apart motorized rollers moves the substrate 8 on the paper roll transmission belt 221.

[0053] Preferably, the object carrying mechanism 22 further comprises a vacuum absorber (not shown in the figure), which is arranged below the paper roll transmission belt 221 and is used to absorb the substrate 8 onto the paper roll transmission belt 221. Such an arrangement can ensure that when the horizontal rotation mechanism 25 rotates, the substrate 8 can rotate synchronously at the same angle.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0055] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A production device for perovskite solar cells, characterized in that: include: Workbench; A mobile loading device, slidably mounted on the workbench, and used for loading and transporting a substrate; An inkjet printing device, mounted on the workbench and arranged above the mobile loading device; The drying device is installed on the workbench and arranged above the movable loading device. Along the transport direction of the substrate, the drying device is located downstream of the inkjet printing device.

2. The production equipment of perovskite solar cells according to claim 1, characterized in that: The workbench is provided with a linear motion mechanism, which includes a slide rail, and the mobile loading device is slidably mounted on the slide rail.

3. The production equipment of perovskite solar cells according to claim 2, characterized in that: A plurality of movable object-carrying devices are slidably connected to the slide rail, and the movable object-carrying devices include an object-carrying seat and an object-carrying mechanism installed on the object-carrying seat. The object-carrying seat is slidably connected to the slide rail, and the object-carrying mechanism is used for carrying a substrate.

4. The production equipment of perovskite solar cells according to claim 3, characterized in that: The production equipment of the perovskite solar cell includes a loading device and a unloading device installed on a workbench, the mobile loading device is arranged between the loading device and the unloading device, and the mobile loading device also includes a lifting mechanism installed on a loading seat, and the loading mechanism is installed on the lifting mechanism.

5. The production equipment of perovskite solar cells according to claim 3, characterized in that: The linear motion mechanism comprises two slide rails arranged at intervals, and each of the slide rails is slidably connected with a plurality of movable object-carrying devices.

6. The production equipment of perovskite solar cells according to claim 5, characterized in that: The mobile object-carrying device further comprises a horizontal moving mechanism installed on the lifting mechanism, and the object-carrying mechanism is installed on the horizontal moving mechanism.

7. The production equipment of perovskite solar cells according to claim 3, characterized in that: The production equipment of the perovskite solar cell comprises an image detection device installed on a workbench. In the transportation direction of the substrate, the image detection device is located upstream of the inkjet printing device and is used to capture the image of the substrate on the mobile carrier.

8. The production equipment of perovskite solar cells according to claim 7, characterized in that: The mobile object-carrying device further comprises a horizontal rotation mechanism installed on the lifting mechanism, and the object-carrying mechanism is installed on the horizontal rotation mechanism.

9. The production equipment of perovskite solar cells according to any one of claims 3 to 8, characterized in that: The object-carrying mechanism comprises a paper roll transmission belt, and the paper roll transmission belt is used for carrying and transporting the substrate.

10. The production equipment of perovskite solar cells according to claim 9, characterized in that: The object-carrying mechanism further comprises a vacuum absorber, which is arranged below the paper roll transmission belt and is used for adsorbing the substrate on the paper roll transmission belt.

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