Laser annealing device for perovskite thin film battery

Abstract

The utility model discloses a perovskite thin film battery laser annealing device which comprises a base, a sliding part arranged on the base, a laser emitting part and a laser refraction part which are arranged on the sliding part, and a laser shaping part which is connected to the end part, far away from the laser emitting part, of the laser refraction part, the base is provided with an annealing platform used for bearing a perovskite thin film battery, the laser shaping part is located above the annealing platform and faces the annealing platform, and the laser emitting part is used for emitting laser to the laser refraction part so that the laser refraction part can refract the laser to the shaping part.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a laser annealing device for perovskite thin film batteries. Background Art

[0002] With the increasing shortage of energy, people pay more and more attention to the development and utilization of solar energy. The market demand for new solar cells with larger area, higher efficiency and lower production cost is increasing day by day.

[0003] Perovskite solar cells are thin film solar cells with organic-inorganic hybrid perovskite materials as the light absorption layer. Due to the outstanding advantages of organic-inorganic hybrid perovskite materials such as high photoelectric conversion efficiency, low cost and simple production, they have become one of the most promising solar cells.

[0004] The quality of perovskite thin films is an important factor affecting the performance of perovskite solar cells. Therefore, improving the film-forming quality of perovskite thin films is the primary task. Grain boundaries in perovskite thin films reduce the efficiency of photovoltaic cells by hindering carrier transport. Therefore, preparing high-quality thin films with large grains and few grain boundaries through annealing methods is one of the keys to achieving efficient and stable perovskite cells.

[0005] In the existing annealing methods used in perovskite coating processes, oven drying is mostly used. There is a problem that the surface of the perovskite has been dried, but some solvents inside the thin film have not been removed, resulting in low quality of the obtained perovskite thin films, which is reflected in the low efficiency of perovskite solar cells. In addition, this oven-type heating method is limited by the size of the equipment and is difficult to scale up to actual large-scale production. At the same time, 95% of the energy in oven-type heating is used to heat the air, and only 5% is effectively applied to the material, resulting in high energy consumption. Summary of the Utility Model

[0006] The main purpose of the utility model is to provide a laser annealing device for perovskite thin film batteries, aiming to solve the above technical problems.

[0007] To achieve the above purpose, a laser annealing device for perovskite thin film batteries proposed by the utility model includes a base, a sliding component arranged on the base, a laser emitting component, a laser refracting component installed on the sliding component, and a laser shaping component connected to the end of the laser refracting component far from the laser emitting component. The base has an annealing platform for carrying perovskite thin film batteries. The laser shaping component is located above the annealing platform and faces the annealing platform. The laser emitting component is used to emit laser to the laser refracting component, and the laser refracting component refracts the laser to the shaping component.

[0008] In one embodiment, the sliding component includes an X-axis gantry, a Y-axis carriage connected to one side of the X-axis gantry, a mounting arm connected to the Y-axis carriage and arranged parallel to the X-axis gantry, and a Z-axis carriage mounted at the end of the mounting arm. The laser shaping component is arranged at the end of the Z-axis carriage and faces the annealing platform.

[0009] In one embodiment, the laser emitting component is arranged on the X-axis gantry.

[0010] In one embodiment, the laser refracting component includes a first refracting tube, a second refracting tube, and a third refracting tube. The first refracting tube is connected to the laser emitting component in communication. The second refracting tube is connected to the first refracting tube and the third refracting tube in communication. The third refracting tube is connected to the shaping component in communication to form an optical path from the laser emitting component to the laser shaping component.

[0011] In one embodiment, the first refracting tube is arranged on the Y-axis carriage, the second refracting tube is arranged on the mounting arm, and the third refracting tube is arranged on the Z-axis carriage.

[0012] In one embodiment, a first refracting mirror, a second refracting mirror, and a third refracting mirror are respectively arranged in the first refracting tube, the second refracting tube, and the third refracting tube.

[0013] In one embodiment, the first refracting tube, the second refracting tube, and the third refracting tube are telescopic.

[0014] In one embodiment, the laser emitting component includes a laser, a beam expander, and an isolator connected in sequence in communication. The isolator is connected to the laser refracting component in communication.

[0015] In the technical solution of the present utility model, the perovskite thin film battery laser annealing device includes a base, a sliding component arranged on the base, a laser emitting component and a laser refracting component mounted on the sliding component, and a laser shaping component connected to the end of the laser refracting component away from the laser emitting component. An annealing platform for carrying the perovskite thin film battery is provided on the base. The laser shaping component is located above the annealing platform and faces the annealing platform. The laser emitting component is used to emit laser to the laser refracting component so that the laser refracting component refracts the laser to the shaping component. In this embodiment, through the method of laser annealing, the annealing crystallization of the perovskite thin film on the surface of the thin film battery can be quickly completed, saving time and energy consumption. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic structural diagram of a laser annealing device for a perovskite thin film battery according to an embodiment of the present invention.

[0018] Explanation of the reference numerals in the drawings: 10, base; 11, annealing platform; 20, sliding member; 21, X-axis gantry; 22, Y-axis carriage; 23, mounting arm; 24, Z-axis carriage; 30, laser emitting member; 40, laser refracting member; 41, first refracting tube; 42, second refracting tube; 43, third refracting tube; 50, laser shaping member.

[0019] The realization, functional characteristics and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the drawings. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0022] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0023] Moreover, the technical solutions among the various embodiments of the present utility model can be combined with each other, but it must be based on the premise that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] The present utility model provides a laser annealing device for a perovskite thin film battery.

[0025] As Figure 1 shown, the laser annealing device for a perovskite thin film battery provided by an embodiment of the present utility model includes a base 10, a sliding member 20 disposed on the base 10, a laser emitting member 30 and a laser refracting member 40 mounted on the sliding member 20, and a laser shaping member 50 connected to an end of the laser refracting member 40 away from the laser emitting member 30. The base 10 has an annealing platform 11 for carrying the perovskite thin film battery. The laser shaping member 50 is located above the annealing platform 11 and faces the annealing platform 11. The laser emitting member 30 is configured to emit laser light to the laser refracting member 40, and the laser refracting member 40 refracts the laser light to the shaping member.

[0026] In this embodiment, the base 10, the sliding member 20 disposed on the base 10, the laser emitting member 30 and the laser refracting member 40 mounted on the sliding member 20, and the laser shaping member 50 connected to an end of the laser refracting member 40 away from the laser emitting member 30. The base 10 has an annealing platform 11 for carrying the perovskite thin film battery. The laser shaping member 50 is located above the annealing platform 11 and faces the annealing platform 11. The laser emitting member 30 is configured to emit laser light to the laser refracting member 40, and the laser refracting member 40 refracts the laser light to the shaping member. In this embodiment, through the method of laser annealing, the annealing crystallization of the perovskite thin film on the surface of the thin film battery can be quickly completed, saving time and energy consumption.

[0027] Specifically, the laser emitting member 30 includes a laser, a beam expander, and an isolator connected in sequence. The isolator is connected to the laser refracting member 40. The isolator can prevent the laser reflected from the product surface from damaging the laser. The beam expander enlarges the diameter of the laser beam, thereby reducing the divergence angle of the laser beam.

[0028] The laser output from the nanosecond blue laser passes through an isolator and then enters the laser refraction component 40, and then enters the linear spot DOE shaping mirror. After shaping, a linear spot with uniform energy (parallel to the X-axis) is formed. The linear spot DOE shaping mirror is installed on the sliding component 20. By adjusting the position of the sliding component 20, the focus can be placed on the surface of the thin-film solar cell fixed on the annealing platform 11. After setting the corresponding processing parameters and processing positions, starting the equipment to move the processing platform in the height direction can realize the laser annealing process of the perovskite thin film on the battery surface.

[0029] When performing the laser annealing process on the perovskite thin-film solar cell, place the conductive glass coated with the perovskite thin film on the annealing platform 11, open the document of the laser annealing scanning path, press the start button, and the equipment will automatically process to quickly complete the annealing crystallization of the perovskite thin film on the surface of the solar cell.

[0030] Specifically, the sliding component 20 includes an X-axis gantry 21, a Y-axis carriage 22 connected to one side of the X-axis gantry 21, a mounting arm 23 connected to the Y-axis carriage 22 and arranged parallel to the X-axis gantry 21, and a Z-axis carriage 24 installed at the end of the mounting arm 23. The laser shaping component 50 is arranged at the end of the Z-axis carriage 24 and faces the annealing platform 11, and the laser emitting component 30 is arranged on the X-axis gantry 21. In this embodiment, to reduce the load on the Y-axis of the large platform and save the space of the equipment, the laser optical path is fixed on the X-axis gantry 21, and the annealing process can be completed only by the movement direction of the workpiece in the Y-axis direction, greatly saving the area of the equipment.

[0031] In addition, the laser refraction component 40 includes a first refraction tube 41, a second refraction tube 42, and a third refraction tube 43. The first refraction tube 41 is connected to the laser emitting component 30, the second refraction tube 42 is connected to the first refraction tube 41 and the third refraction tube 43, and the third refraction tube 43 is connected to the shaping component to form an optical path from the laser emitting component 30 to the laser shaping component 50. The first refraction tube 41 is arranged on the Y-axis carriage 22, the second refraction tube 42 is arranged on the mounting arm 23, and the third refraction tube 43 is arranged on the Z-axis carriage 24.

[0032] In this embodiment, when the light enters the first refraction mirror in the first refraction tube 41, after being reflected by the first refraction mirror, it enters the second refraction mirror in the second refraction tube 42 in the Y direction parallelly, after being reflected by the second refraction mirror, it enters the third refraction mirror in the third refraction tube 43 in the X direction parallelly, and after being reflected by the third refraction mirror, it enters the linear spot DOE shaping mirror in the Z direction parallelly to form a linear spot with uniform energy.

[0033] In the above embodiments, in order to facilitate the sliding of the laser refraction component 40 along with the sliding of the sliding component 20, the first refraction tube 41, the second refraction tube 42, and the third refraction tube 43 are set as telescopic tubes. That is, both ends of the first refraction tube 41, the second refraction tube 42, and the third refraction tube 43 can be fixed, and a telescopic tube body (such as a plurality of coaxially sleeved tube bodies, etc.) is adopted in the middle to facilitate telescoping.

[0034] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A laser annealing device for perovskite thin film batteries, characterized in that: The perovskite thin film battery laser annealing device comprises a base (10), a sliding component (20) arranged on the base (10), a laser emitting component (30) and a laser refracting component (40) installed on the sliding component (20), and a laser shaping component (50) connected to the end of the laser refracting component (40) away from the laser emitting component (30); the base (10) is provided with an annealing platform (11) for carrying the perovskite thin film battery; the laser shaping component (50) is located above the annealing platform (11) and faces the annealing platform (11); the laser emitting component (30) is used to emit laser light to the laser refracting component (40) so that the laser refracting component (40) refracts the laser light to the shaping component.

2. The laser annealing device for perovskite thin film battery according to claim 1, characterized in that: The sliding component (20) comprises an X-axis gantry (21), a Y-axis slide (22) connected to one side of the X-axis gantry (21), a mounting arm (23) connected to the Y-axis slide (22) and arranged parallel to the X-axis gantry (21), and a Z-axis slide (24) mounted at the end of the mounting arm (23), and the laser shaping component (50) is arranged at the end of the Z-axis slide (24) and faces the annealing platform (11).

3. The laser annealing device for perovskite thin film battery according to claim 2, characterized in that: The laser emitting component (30) is arranged on the X-axis gantry (21).

4. The laser annealing device for perovskite thin film battery according to claim 3, characterized in that: The laser refraction component (40) comprises a first refraction tube (41), a second refraction tube (42) and a third refraction tube (43); the first refraction tube (41) is connected to the laser emitting component (30); the second refraction tube (42) is connected to the first refraction tube (41) and the third refraction tube (43); the third refraction tube (43) is connected to the shaping component to form an optical path from the laser emitting component (30) to the laser shaping component (50).

5. The laser annealing device for perovskite thin film battery according to claim 4, characterized in that: The first refraction tube (41) is arranged on the Y-axis slide (22), the second refraction tube (42) is arranged on the mounting arm (23), and the third refraction tube (43) is arranged on the Z-axis slide (24).

6. The laser annealing device for perovskite thin film battery according to claim 4, characterized in that: A first refraction mirror, a second refraction mirror and a third refraction mirror are respectively disposed in the first refraction tube (41), the second refraction tube (42) and the third refraction tube (43).

7. The laser annealing device for perovskite thin film battery according to claim 4, characterized in that: The first refraction tube (41), the second refraction tube (42) and the third refraction tube (43) are retractable.

8. The laser annealing device for perovskite thin film batteries according to any one of claims 1 to 7, characterized in that: The laser emitting component (30) comprises a laser, a beam expander and an isolator which are connected in sequence, and the isolator is connected to the laser refraction component (40).

Images