An apparatus for measuring the fluorescence spectrum of a solar cell

Abstract

The present application discloses a device for measuring the fluorescence spectrum of a solar cell, which is applied to the field of solar energy technology. In the present application, the sample placement area can adjust the size of the placement area according to the size of the placed solar panel. Even if the area of the solar panel to be placed is very large, the fluorescence spectrum can be measured without cutting the solar panel. The lens adjusts the laser emitted by the laser into parallel laser beams. The first sample placement area and the second sample placement area can simultaneously place solar panels. The optical path adjustment module adjusts the parallel laser beams. While using the parallel laser beams to perform laser scribing on the solar panel in the second sample placement area, it excites the solar panel in the first sample placement area to emit fluorescence, realizing the measurement of the fluorescence spectrum. Therefore, it is possible to reduce the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell and improve the manufacturing efficiency of the solar cell.

Description

Technical Field

[0001] The present application relates to the technical field of solar energy, and particularly to a device for measuring the fluorescence spectrum of a solar cell. Background Art

[0002] As a new type of solar cell material, perovskite solar cells have the advantages of high energy conversion efficiency, low raw material cost, and simple production process. The open-circuit voltage of a single perovskite solar cell is 1 - 1.2V. To achieve grid-connected power generation of perovskite solar cells, it is necessary to use a laser scribing process to connect perovskite solar cell wafers in series to form a module. At the same time, during the process of preparing perovskite solar cell modules, it is also necessary to measure the fluorescence spectrum of the solar cell panel.

[0003] Generally, the fluorescence spectrum measurement of a solar cell panel needs to be sent to a professional testing institution for testing, which affects the efficiency of solar cell manufacturing. And when the area of the perovskite solar cell module is large, the testing institution needs to cut the module before testing. There may be damage to the structure and materials of the cell wafer during the fluorescence spectrum detection process, which will lead to damage to the structure and materials of the solar cell panel during the solar cell manufacturing process and reduce the efficiency of solar cell manufacturing. Summary of the Invention

[0004] Based on the above problems, the present application provides a device for measuring the fluorescence spectrum of a solar cell, which can reduce the damage to the structure and materials of the solar cell panel during the solar cell manufacturing process and improve the efficiency of solar cell manufacturing.

[0005] The embodiments of the present application disclose the following technical solutions:

[0006] In a first aspect, the present application provides a device for measuring the fluorescence spectrum of a solar cell, including: a laser, a lens, an optical path adjustment module, a sample placement area, and a fluorescence spectrum measurement component;

[0007] The sample placement area is used to place the solar cell panel, and the size of the sample placement area is adjusted according to the size of the solar cell panel. The sample placement area includes a first sample placement area and a second sample placement area;

[0008] The lens is used to adjust the laser emitted by the laser into parallel laser beams;

[0009] The optical path adjustment module is used to cause the solar cell panel placed in the first sample placement area to emit fluorescence after being excited by the parallel laser beams, and to use the parallel laser beams to scribe the solar cell panel placed in the second sample placement area;

[0010] The fluorescence spectrum measurement component is used to measure the fluorescence spectrum of fluorescence.

[0011] Optionally, the optical path adjustment module specifically includes: a first reflector;

[0012] The first reflector is used to reflect the parallel laser light to the solar panel placed in the second sample placement area, and to flip the first reflector below the horizontal line of the parallel laser light, so that the solar panel placed in the first sample placement area is excited by the parallel laser light to emit fluorescence.

[0013] Optionally, the optical path adjustment module specifically includes: a first semi-transparent and semi-reflective mirror, a second reflector, and an optical attenuator;

[0014] The first semi-transparent and semi-reflective mirror is used to reflect the parallel laser light to the solar panel placed in the second sample placement area, and to transmit the parallel laser light to the second reflector;

[0015] The second reflector is used to reflect the parallel laser light transmitted by the first semi-transparent and semi-reflective mirror to the solar panel placed in the first sample placement area, so that the solar panel placed in the first sample placement area is excited by the parallel laser light to emit fluorescence;

[0016] The optical attenuator is used to attenuate the parallel laser light that excites the solar panel placed in the first sample placement area to emit fluorescence.

[0017] Optionally, the optical attenuator is disposed between the first semi-transparent and semi-reflective mirror and the second reflector, or is disposed between the second reflector and the first sample placement area.

[0018] Optionally, the optical path adjustment module specifically includes: a first semi-transparent and semi-reflective mirror and an optical attenuator;

[0019] The first semi-transparent and semi-reflective mirror is used to reflect the parallel laser light to the solar panel placed in the second sample placement area, and to transmit the parallel laser light to the solar panel placed in the first sample placement area, so that the solar panel placed in the first sample placement area is excited by the parallel laser light to emit fluorescence;

[0020] The optical attenuator is used to attenuate the parallel laser light that excites the solar panel placed in the first sample placement area to emit fluorescence.

[0021] Optionally, the optical path adjustment module further includes: a third reflector;

[0022] The third reflecting mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence.

[0023] Optionally, the optical path adjustment module further includes: a second reflecting mirror;

[0024] The second reflecting mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to flip the second reflecting mirror below the horizontal line of the fluorescence so as to detect the fluorescence lifetime information of the fluorescence.

[0025] Optionally, the device further includes: a second semi-transmissive semi-reflective mirror and a single photon counter;

[0026] The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the single photon counter;

[0027] The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

[0028] Optionally, the device further includes: a second semi-transmissive semi-reflective mirror, a fourth reflecting mirror and a single photon counter;

[0029] The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the fourth reflecting mirror;

[0030] The fourth reflecting mirror is configured to reflect the fluorescence to the single photon counter;

[0031] The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

[0032] Optionally, the device further includes: a second semi-transmissive semi-reflective mirror and a single photon counter;

[0033] The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the single photon counter;

[0034] The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

[0035] Optionally, the device further includes: a second semi-transmissive semi-reflective mirror, a fourth reflecting mirror and a single photon counter;

[0036] The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the fourth reflecting mirror;

[0037] The fourth reflector is configured to reflect the fluorescence to the single photon counter;

[0038] The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

[0039] Optionally, the device further includes: a single photon counter;

[0040] The third reflector is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to flip the third reflector to an angle where it does not reflect the fluorescence to detect the fluorescence lifetime information of the fluorescence;

[0041] The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

[0042] Optionally, the device further includes: a single photon counter;

[0043] The second reflector is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to flip the second reflector to an angle where it does not reflect the fluorescence to detect the fluorescence lifetime information of the fluorescence;

[0044] The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

[0045] Optionally, the fluorescence spectrum measurement component specifically includes: a fluorescence spectrometer and a detector;

[0046] The fluorescence spectrometer is configured to measure the fluorescence wavelength information of the fluorescence;

[0047] The detector is configured to measure the fluorescence intensity information corresponding to the fluorescence wavelength information to obtain the fluorescence spectrum, and the fluorescence spectrum is a mapping relationship between the fluorescence wavelength information and the corresponding fluorescence intensity information.

[0048] Compared with the prior art, the present application has the following beneficial effects:

[0049] In this application, the sample placement area can adjust the size of the placement area according to the size of the placed solar panel. Even if the area of the solar panel to be placed is very large, fluorescence spectrum measurement can be carried out without cutting the solar panel. The sample placement area includes a first sample placement area and a second sample placement area. The lens adjusts the laser emitted by the laser into parallel laser rays. The optical path adjustment module uses the parallel laser rays to excite the solar panel in the first sample placement area to emit fluorescence, and can also use the parallel laser rays to perform laser scribing on the solar panel in the second sample placement area. The first sample placement area and the second sample placement area of the device can have solar panels placed simultaneously. At this time, the device uses the optical path adjustment module to adjust the optical path of the parallel laser rays obtained through the lens, and can realize the fluorescence spectrum measurement of the solar panel in the first sample placement area while performing laser scribing on the solar panel in the second sample placement area. Therefore, damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved. Description of the Drawings

[0050] Figure 1 It is a schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0051] Figure 2 It is another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0052] Figure 3 It is still another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0053] Figure 4 It is yet another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0054] Figure 5 It is another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0055] Figure 6 It is still another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0056] Figure 7 It is yet another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0057] Figure 8 It is another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0058] Figure 9 Another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0059] Figure 10 Another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0060] Figure 11 Another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application;

[0061] Figure 12 Another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. Detailed implementation manners

[0062] To enable those skilled in the art to more clearly understand the technical solution of the present application, the application scenarios of the present application solution will be described first below.

[0063] Lead halide perovskite (LHP) has gradually become one of the research focuses in multiple disciplines such as physics, chemistry, and materials. It began in 2009 when scientists first used perovskite materials CH3NH3PbI3 and CH3NH3PbBr3 as sensitizers in dye-sensitized solar cells and achieved a photoelectric conversion efficiency of approximately 4%. This research result is a brand-new topic at the current research forefront, paving the way for the development of photovoltaic technologies based on the semiconductor LHP that can efficiently absorb sunlight. As of the end of September 2022, the photoelectric conversion efficiency of small-area single-junction perovskite solar cells prepared in the laboratory has reached 25.7%. It has achieved in more than a decade what crystalline silicon cells took sixty years to achieve in terms of efficiency improvement. The new generation of solar cells based on perovskite is showing a bright application prospect.

[0064] Currently, the open-circuit voltage of a single perovskite solar cell is 1 - 1.2V. To achieve grid-connected power generation of perovskite solar cells, it is necessary to use a laser scribing process to connect perovskite solar cell wafers in series to form a module. Specifically, in the manufacturing of perovskite solar cell modules, P1, P2, and P3 scribing steps need to be experienced respectively to make the cells form a series structure. At the same time, during the process of preparing perovskite solar cell modules, fluorescence spectrum measurement of the solar cell panel is also required. The fluorescence spectrum measurement of the cell wafers needs to be sent to a professional testing institution for testing. However, when the area of the perovskite solar cell module is large, the testing institution needs to cut the module before testing. There may be damage to the structure and materials of the solar cell panel during the fluorescence spectrum measurement. This will lead to damage to the structure and materials of the solar cell panel during the manufacturing process of the solar cell, reducing the manufacturing efficiency of the solar cell.

[0065] To solve the above technical problems, the present application provides a device for measuring the fluorescence spectrum of a solar cell. In the present application, the sample placement area can adjust the size of the placement area according to the size of the placed solar panel. Even if the area of the solar panel to be placed is very large, the fluorescence spectrum can be measured without cutting the solar panel. The sample placement area includes a first sample placement area and a second sample placement area. The lens adjusts the laser emitted by the laser into parallel laser beams. The optical path adjustment module uses the parallel laser beams to excite the solar panel in the first sample placement area to emit fluorescence, and can also use the parallel laser beams to perform laser scribing on the solar panel in the second sample placement area. Through the optical path adjustment module, the same parallel laser beam can be used both as a laser scribing function and as a fluorescence spectrum measurement function, which can improve the manufacturing efficiency of the solar panel. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be improved.

[0066] To enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0067] Figure 1 It is a schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. As Figure 1 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, and a fluorescence spectrum measurement component 500.

[0068] The laser 100 emits laser beams, and the side of the laser 100 close to the lens 200 has a light outlet. The lens 200 adjusts the laser emitted by the laser 100 into parallel laser beams. The laser 100 can be a nanosecond laser, a picosecond laser, a femtosecond laser, etc. used in the laser scribing process.

[0069] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. The sample placement area 400 can place a solar panel, and the size of the sample placement area 400 can be adjusted according to the size of the placed solar panel. When measuring the fluorescence spectrum of the solar panel, it is avoided that the area of the solar panel is large and needs to be cut, reducing the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell.

[0070] Through the optical path adjustment module 300, the solar panels placed in the first sample placement area 401 can be excited by parallel laser beams to emit fluorescence, and the parallel laser beams can be used to perform laser scribing on the solar panels placed in the second sample placement area 402.

[0071] Specifically, the solar panel includes perovskite, which is a fluorescent material. When the laser beam irradiates on the perovskite, the perovskite is excited to an excited state, and the excited state is an unstable state. The energy needs to become a stable state, and the manifestation of the stable state is fluorescence. Therefore, when the laser beam irradiates on the perovskite solar panel, the solar panel can be excited to emit fluorescence.

[0072] Specifically, after the parallel laser beams enter the second sample placement area 402, the optical path for performing the laser scribing function is built, and the solar panels in the second sample placement area 402 can be laser scribed to form a component with a series structure.

[0073] The fluorescence spectrum measurement component 500 uses the fluorescence emitted after the excitation of the solar panel in the first sample placement area 401 to perform fluorescence spectrum measurement.

[0074] Specifically, the fluorescence spectrum measurement component 500 includes a fluorescence spectrometer and a detector. The fluorescence spectrometer measures the fluorescence to obtain fluorescence wavelength information, and the detector analyzes the fluorescence wavelength information to obtain the fluorescence intensity information corresponding to the fluorescence wavelength information. The mapping relationship between the fluorescence wavelength information and the corresponding fluorescence intensity information is the fluorescence spectrum of the fluorescence.

[0075] By using the laser in the production of perovskite solar cells, through optical path design, the functions of laser scribing and fluorescence spectrum measurement can be achieved simultaneously. The laser beam generated by the laser 100 is made to serve two purposes through the optical path adjustment module 300. One optical path is designed for laser scribing, and the other optical path is designed for fluorescence spectrum measurement. The two optical paths do not interfere with each other, so the two processes can be carried out simultaneously, improving the efficiency of solar cell manufacturing.

[0076] In this application, the sample placement area can adjust the size of the placement area according to the size of the placed solar panel. Even if the area of the solar panel to be placed is very large, fluorescence spectrum measurement can be carried out without cutting the solar panel. The sample placement area includes a first sample placement area and a second sample placement area. The lens adjusts the laser emitted by the laser into parallel laser beams. The optical path adjustment module uses the parallel laser beams to excite the solar panel in the first sample placement area to emit fluorescence, and can also use the parallel laser beams to perform laser scribing on the solar panel in the second sample placement area. Solar panels can be placed in both the first sample placement area and the second sample placement area of the device at the same time. At this time, the device uses the optical path adjustment module to adjust the optical path of the parallel laser obtained through the lens, and can also measure the fluorescence spectrum of the solar panel in the first sample placement area while performing laser scribing on the solar panel in the second sample placement area. Therefore, damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0077] Figure 2 It is another structural schematic diagram of a device for measuring the fluorescence spectrum of a solar cell provided in an embodiment of this application. As Figure 2 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, and a fluorescence spectrum measurement component 500.

[0078] The laser 100 emits laser beams, and there is a light outlet on the side of the laser 100 close to the lens 200. The lens 200 adjusts the laser emitted by the laser 100 into parallel laser beams.

[0079] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0080] The optical path adjustment module 300 includes a first reflector 301.

[0081] The first reflector 301 can reflect the parallel laser beams to the solar panel in the second sample placement area 402 to achieve the laser scribing function. The first reflector 301 can be folded below the horizontal line of the parallel laser beams, and the parallel laser beams can irradiate the first sample placement area 401, so that the solar panel in the first sample placement area 401 is excited to emit fluorescence by the parallel laser beams.

[0082] In addition, the positions of the first sample placement area 401 and the second sample placement area 402 can be swapped. The first reflector 301 can reflect the parallel laser light to the first sample placement area 401 to achieve the fluorescence spectrum measurement function. The first reflector 301 can be folded below the horizontal line of the parallel laser light, and the parallel laser light can irradiate the second sample placement area 402 to achieve the laser scribing function.

[0083] The fluorescence spectrum measurement component 500 performs fluorescence spectrum measurement using the fluorescence emitted after the solar cell panel in the first sample placement area 401 is excited. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0084] In this application, the change of the laser optical path is achieved through the foldable first reflector 301. The parallel laser light can be reflected to the second sample placement area 402 to achieve the laser scribing function. When the first reflector 301 is folded down, the parallel laser light can irradiate the first sample placement area 401 to excite the solar cell panel to emit fluorescence. Therefore, the damage to the structure and materials of the solar cell panel during the solar cell manufacturing process can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0085] Figure 3 It is another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of this application. As Figure 3 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, and a fluorescence spectrum measurement component 500.

[0086] The laser 100 emits laser light, and there is a light outlet on the side of the laser 100 close to the lens 200. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light.

[0087] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0088] The optical path adjustment module 300 includes a first semi-transparent semi-reflective mirror 301, an optical attenuator 302, and a second reflector 303.

[0089] The first semi-transparent and semi-reflective mirror 301 includes a semi-transparent and semi-reflective dielectric film, such that the ratio of transmitted and reflected laser light can reach 50:50, enabling dual use of the laser light for simultaneous laser scribing and fluorescence spectroscopy measurement. The first semi-transparent and semi-reflective mirror 301 can reflect the parallel laser light to the solar panel in the second sample placement area 402 to achieve the laser scribing function. The first semi-transparent and semi-reflective mirror 301 can transmit the parallel laser light to the second mirror 303.

[0090] The second mirror 303 reflects the parallel laser light to the solar panel placed in the first sample placement area 401, causing the solar panel to emit fluorescence after being excited by the parallel laser light.

[0091] The optical attenuator 302 can attenuate the parallel laser light.

[0092] Specifically, when the laser light emitted by the laser 100 is used for both the laser scribing function and the fluorescence spectroscopy measurement function, the laser light for the laser scribing function needs to be high-power laser, and the high-power laser can dissolve the structure and materials of the solar panel to achieve the scribing component of the solar panel. However, the laser for fluorescence spectroscopy measurement needs to be low-power laser to prevent the high-power laser from damaging the structure of the solar panel. At this time, it is necessary to attenuate the power of the parallel laser light before it enters the first sample placement area 401. Among them, the optical attenuator 302 can be placed between the first semi-transparent and semi-reflective mirror 301 and the second mirror 303, or can be placed between the second mirror 303 and the first sample placement area 401.

[0093] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a mirror, and the mirror is flipped below the horizontal line of the parallel laser light to only operate the fluorescence spectroscopy measurement function.

[0094] In addition, the optical path devices for the laser scribing function and the fluorescence spectroscopy measurement function can be swapped in position. That is, the parallel laser light is reflected by the first semi-transparent and semi-reflective mirror 301 to the second mirror 303, so that the parallel laser light excites the solar panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser light to the second sample placement area 402 for laser scribing.

[0095] The fluorescence spectroscopy measurement component 500 performs fluorescence spectroscopy measurement using the fluorescence emitted after the solar panel in the first sample placement area 401 is excited. As mentioned before, the specific process of the fluorescence spectroscopy measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0096] In this application, the parallel laser light can be reflected by the first semi-transmissive semi-reflective mirror 301 to the second sample placement area 402 for laser scribing function, and at the same time, the parallel laser light can be transmitted through the first semi-transmissive semi-reflective mirror 301 to the second mirror 303. The second mirror 303 reflects the parallel laser light to the first sample placement area 401 to excite the solar panel to emit fluorescence, realizing fluorescence spectrum measurement. The optical attenuator 302 is used to attenuate the parallel laser light for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0097] Figure 4 This is another structural schematic diagram of an apparatus for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. As Figure 4 shown, the apparatus includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, and a fluorescence spectrum measurement component 500.

[0098] The laser 100 emits laser light, and the side of the laser 100 close to the lens 200 has a light outlet. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light.

[0099] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0100] The optical path adjustment module 300 includes a first semi-transmissive semi-reflective mirror 301 and an optical attenuator 302.

[0101] The first semi-transmissive semi-reflective mirror 301 can reflect the parallel laser light to the solar panel in the second sample placement area 402 to achieve the laser scribing function. The first semi-transmissive semi-reflective mirror 301 can transmit the parallel laser light to the solar panel in the first sample placement area 401 to excite the solar panel to emit fluorescence.

[0102] The optical attenuator 302 can attenuate the parallel laser light. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser light will not be elaborated here one by one.

[0103] In addition, the first semi-transmissive semi-reflective mirror 301 can be replaced with a mirror, and the mirror is turned below the horizontal line of the parallel laser light to only operate the fluorescence spectrum measurement function.

[0104] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, parallel laser beams are reflected by the first semi-transparent and semi-reflective mirror 301 to the first sample placement area 401, so that the parallel laser beams excite the solar panel to emit fluorescence. The first semi-transparent and semi-reflective mirror 301 transmits the parallel laser beams to the second sample placement area 402 for laser scribing.

[0105] The fluorescence spectrum measurement component 500 performs fluorescence spectrum measurement using the fluorescence emitted after excitation by the solar panel in the first sample placement area 401. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0106] In this application, the parallel laser beams can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 for the laser scribing function, and at the same time, the parallel laser beams can be transmitted by the first semi-transparent and semi-reflective mirror 301 to the first sample placement area 401 to excite the solar panel to emit fluorescence and realize fluorescence spectrum measurement. The optical attenuator 302 is used to attenuate the parallel laser beams for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0107] Figure 5 It is another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of this application. As Figure 5 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, and a fluorescence spectrum measurement component 500.

[0108] The laser 100 emits laser beams, and the side of the laser 100 close to the lens 200 has a light outlet. The lens 200 adjusts the laser beams emitted by the laser 100 into parallel laser beams.

[0109] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0110] The optical path adjustment module 300 includes a first semi-transparent and semi-reflective mirror 301, an optical attenuator 302, and a second reflector 303. The optical path adjustment module 300 further includes a third reflector 304.

[0111] The first semi-transparent and semi-reflective mirror 301 can reflect the parallel laser beams to the solar panel in the second sample placement area 402 to realize the laser scribing function. The first semi-transparent and semi-reflective mirror 301 can transmit the parallel laser beams to the second reflector 303.

[0112] The second reflector 303 reflects the parallel laser light rays to the solar panel placed in the first sample placement area 401, so that the solar panel emits fluorescence after being excited by the parallel laser light rays.

[0113] The optical attenuator 302 can attenuate the parallel laser light rays. Among them, the optical attenuator 302 can be placed between the first semi-transparent and semi-reflective mirror 301 and the second reflector 303, or can be placed between the second reflector 303 and the first sample placement area 401. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser light rays will not be elaborated one by one here.

[0114] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a reflector, and the reflector is turned below the horizontal line of the parallel laser light rays, and only the fluorescence spectrum measurement function is operated.

[0115] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the parallel laser light rays are reflected by the first semi-transparent and semi-reflective mirror 301 to the second reflector 303, so that the parallel laser light rays excite the solar panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser light rays to the second sample placement area 402 for laser scribing.

[0116] The third reflector 304 reflects the fluorescence to the fluorescence spectrum measurement component 500.

[0117] The fluorescence spectrum measurement component 500 uses the fluorescence emitted by the solar panel in the first sample placement area 401 reflected by the third reflector 304 to perform fluorescence spectrum measurement. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated one by one here.

[0118] In this application, the parallel laser light rays can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 to perform the laser scribing function, and at the same time, the parallel laser light rays can be transmitted to the second reflector 303. The second reflector 303 reflects the parallel laser light rays to the first sample placement area 401 to excite the solar panel to emit fluorescence. The third reflector 304 is used to reflect the fluorescence to the fluorescence spectrum measurement component 500 to realize fluorescence spectrum measurement. The optical attenuator 302 is used to attenuate the parallel laser light rays for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0119] Figure 6 It is another structural schematic diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. As Figure 6As shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, and a fluorescence spectrum measurement component 500.

[0120] The laser 100 emits laser light, and the side of the laser 100 close to the lens 200 has a light output port. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light.

[0121] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0122] The optical path adjustment module 300 includes a first semi-transparent and semi-reflective mirror 301 and an optical attenuator 302. The optical path adjustment module 300 further includes a second reflector 303.

[0123] The first semi-transparent and semi-reflective mirror 301 can reflect the parallel laser light to the solar panel in the second sample placement area 402 to achieve the laser scribing function. The first semi-transparent and semi-reflective mirror 301 can transmit the parallel laser light to the solar panel in the first sample placement area 401 to excite the solar panel to emit fluorescence.

[0124] The optical attenuator 302 can attenuate the parallel laser light. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser light will not be elaborated here one by one.

[0125] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a reflector, and the reflector is turned below the horizontal line of the parallel laser light to only operate the fluorescence spectrum measurement function.

[0126] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the parallel laser light is reflected by the first semi-transparent and semi-reflective mirror 301 to the first sample placement area 401 to cause the parallel laser light to excite the solar panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser light to the second sample placement area 402 for laser scribing.

[0127] The second reflector 303 reflects the fluorescence emitted by the solar panel in the first sample placement area 401 excited by the parallel laser light to the fluorescence spectrum measurement component 500.

[0128] The fluorescence spectrum measurement component 500 measures the fluorescence spectrum of the fluorescence reflected by the second reflector 303. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0129] In this application, the first semi-transmissive and semi-reflective mirror 301 can reflect parallel laser light rays to the second sample placement area 402 for laser scribing, and at the same time transmit the parallel laser light rays to the first sample placement area 401 to excite the solar panel to emit fluorescence. The second reflector 303 reflects the fluorescence to the fluorescence spectrum measurement component 500 to achieve the fluorescence spectrum measurement of the fluorescence. The optical attenuator 302 attenuates the parallel laser light rays used for fluorescence spectrum measurement. Therefore, damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0130] Figure 7 It is another structural schematic diagram of an apparatus for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. As Figure 7 shown, the apparatus includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, a fluorescence spectrum measurement component 500, a second semi-transmissive and semi-reflective mirror 600, and a single photon counter 700.

[0131] The laser 100 emits laser light rays, and the side of the laser 100 close to the lens 200 has a light outlet. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light rays.

[0132] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0133] The optical path adjustment module 300 includes a first semi-transmissive and semi-reflective mirror 301, an optical attenuator 302, and a second reflector 303.

[0134] The first semi-transmissive and semi-reflective mirror 301 can reflect the parallel laser light rays to the solar panel in the second sample placement area 402 to achieve the laser scribing function. The first semi-transmissive and semi-reflective mirror 301 can transmit the parallel laser light rays to the second reflector 303.

[0135] The second reflector 303 reflects the parallel laser light rays to the solar panel placed in the first sample placement area 401, so that the solar panel emits fluorescence after being excited by the parallel laser light rays.

[0136] The optical attenuator 302 can attenuate the parallel laser light rays. Among them, the optical attenuator 302 can be placed between the first semi-transmissive and semi-reflective mirror 301 and the second reflector 303, or can be placed between the second reflector 303 and the first sample placement area 401. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser light rays will not be elaborated here one by one.

[0137] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a reflective mirror, and the reflective mirror is turned below the horizontal line of the parallel laser beam, and only the fluorescence spectrum measurement function is operated.

[0138] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the parallel laser beam is reflected by the first semi-transparent and semi-reflective mirror 301 to the second reflective mirror 303, so that the parallel laser beam excites the solar panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser beam to the second sample placement area 402 for laser scribing.

[0139] The second semi-transparent and semi-reflective mirror 600 includes a semi-transparent and semi-reflective dielectric film, so that the ratio of fluorescence transmission to reflection can reach 50:50, enabling dual use of fluorescence, and simultaneously performing fluorescence lifetime measurement and fluorescence spectrum measurement. The second semi-transparent and semi-reflective mirror 600 reflects the fluorescence to the fluorescence spectrum measurement component 500 and transmits the fluorescence to the single photon counter 700.

[0140] The fluorescence spectrum measurement component 500 performs fluorescence spectrum measurement using the fluorescence emitted by the solar panel in the first sample placement area 401 reflected by the second semi-transparent and semi-reflective mirror 600. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0141] The single photon counter 700 measures the fluorescence lifetime information using the fluorescence emitted by the solar panel in the first sample placement area 401 transmitted by the second semi-transparent and semi-reflective mirror 600, and a fluorescence decay curve can be obtained.

[0142] In addition, the optical path device for the fluorescence lifetime information measurement function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the fluorescence is reflected by the second semi-transparent and semi-reflective mirror 600 to the single photon counter 700, and the second semi-transparent and semi-reflective mirror 600 transmits the fluorescence to the fluorescence spectrum measurement component 500.

[0143] In this application, the parallel laser beam can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 for the laser scribing function, and at the same time, the parallel laser beam can be transmitted to the second reflective mirror 303, and the second reflective mirror 303 reflects the parallel laser beam to the first sample placement area 401 to excite the solar panel to emit fluorescence. The second semi-transparent and semi-reflective mirror 600 is used to reflect the fluorescence to the fluorescence spectrum measurement component 500 to achieve fluorescence spectrum measurement, and transmit it to the single photon counter 700 to achieve fluorescence lifetime measurement. The optical attenuator 302 is used to attenuate the parallel laser beam for fluorescence spectrum measurement. Therefore, damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0144] Figure 8 Another structural schematic diagram of an apparatus for measuring the fluorescence spectrum of a solar cell provided by an embodiment of this application. As Figure 8 shown, the apparatus includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, a fluorescence spectrum measurement component 500, a second semi-transparent and semi-reflective mirror 600, a single photon counter 700, and a fourth reflector 800.

[0145] The laser 100 emits laser light, and the side of the laser 100 close to the lens 200 has a light outlet. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light.

[0146] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0147] The optical path adjustment module 300 includes a first semi-transparent and semi-reflective mirror 301, an optical attenuator 302, and a second reflector 303.

[0148] The first semi-transparent and semi-reflective mirror 301 can reflect the parallel laser light to the solar cell panel in the second sample placement area 402 to achieve the function of laser scribing. The first semi-transparent and semi-reflective mirror 301 can transmit the parallel laser light to the second reflector 303.

[0149] The second reflector 303 reflects the parallel laser light to the solar cell panel placed in the first sample placement area 401, so that the solar cell panel emits fluorescence after being excited by the parallel laser light.

[0150] The optical attenuator 302 can attenuate the parallel laser light. Among them, the optical attenuator 302 can be placed between the first semi-transparent and semi-reflective mirror 301 and the second reflector 303, or can be placed between the second reflector 303 and the first sample placement area 401. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser light will not be elaborated here one by one.

[0151] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a reflector, and the reflector is turned below the horizontal line of the parallel laser light, and only the fluorescence spectrum measurement function is operated.

[0152] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the parallel laser light is reflected by the first semi-transparent and semi-reflective mirror 301 to the second reflector 303, so that the parallel laser light excites the solar cell panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser light to the second sample placement area 402 for laser scribing.

[0153] The second semi-transparent and semi-reflective mirror 600 reflects the fluorescence to the fluorescence spectrum measurement component 500 and transmits the fluorescence to the fourth mirror 800.

[0154] The fluorescence spectrum measurement component 500 measures the fluorescence spectrum using the fluorescence emitted by the solar panel in the first sample placement area 401 reflected by the second semi-transparent and semi-reflective mirror 600. As mentioned before, the specific process by which the fluorescence spectrum measurement component 500 obtains the fluorescence spectrum will not be elaborated here one by one.

[0155] The fourth mirror 800 reflects the fluorescence transmitted by the second semi-transparent and semi-reflective mirror 600 to the single photon counter 700.

[0156] The single photon counter 700 measures the fluorescence lifetime information using the fluorescence reflected by the fourth mirror 800, and a fluorescence decay curve can be obtained.

[0157] In addition, the optical path device for the fluorescence lifetime information measurement function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the fluorescence is reflected by the second semi-transparent and semi-reflective mirror 600 to the fourth mirror 800, and the second semi-transparent and semi-reflective mirror 600 transmits the fluorescence to the fluorescence spectrum measurement component 500.

[0158] In this application, the parallel laser beam can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 for laser scribing function, and at the same time, the parallel laser beam can be transmitted to the second mirror 303. The second mirror 303 reflects the parallel laser beam to the first sample placement area 401 to excite the solar panel to emit fluorescence. The fluorescence is reflected by the second semi-transparent and semi-reflective mirror 600 to the fluorescence spectrum measurement component 500 to realize fluorescence spectrum measurement, and transmitted to the fourth mirror 800. The fourth mirror 800 reflects the fluorescence to the single photon counter 700 to realize fluorescence lifetime measurement. The optical attenuator 302 attenuates the parallel laser beam used for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0159] Figure 9 It is another schematic structural diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of this application. As Figure 9 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, a fluorescence spectrum measurement component 500, a second semi-transparent and semi-reflective mirror 600, and a single photon counter 700.

[0160] The laser 100 emits laser beams, and there is a light output port on the side of the laser 100 close to the lens 200. The lens 200 adjusts the laser beams emitted by the laser 100 into parallel laser beams.

[0161] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0162] The optical path adjustment module 300 includes a first semi-transparent and semi-reflective mirror 301 and an optical attenuator 302.

[0163] The first semi-transparent and semi-reflective mirror 301 can reflect parallel laser light rays to the solar panel in the second sample placement area 402 to achieve the function of laser scribing. The first semi-transparent and semi-reflective mirror 301 can transmit parallel laser light rays to the solar panel in the first sample placement area 401 to excite the solar panel to emit fluorescence.

[0164] The optical attenuator 302 can attenuate parallel laser light rays. As mentioned above, the specific process and function of the optical attenuator 302 attenuating parallel laser light rays will not be elaborated here one by one.

[0165] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a reflector, and the reflector is turned below the horizontal line of the parallel laser light rays, and only the fluorescence spectrum measurement function is operated.

[0166] In addition, the optical path devices for the laser scribing function and the optical path devices for the fluorescence spectrum measurement function can be swapped in position. That is, parallel laser light rays are reflected by the first semi-transparent and semi-reflective mirror 301 to the first sample placement area 401 to cause the parallel laser light rays to excite the solar panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser light rays to the second sample placement area 402 for laser scribing.

[0167] The second semi-transparent and semi-reflective mirror 600 reflects the fluorescence to the fluorescence spectrum measurement component 500 and transmits the fluorescence to the single photon counter 700.

[0168] The fluorescence spectrum measurement component 500 uses the fluorescence emitted by the solar panel in the first sample placement area 401 reflected by the second semi-transparent and semi-reflective mirror 600 to perform fluorescence spectrum measurement. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0169] The single photon counter 700 uses the fluorescence emitted by the solar panel in the first sample placement area 401 transmitted by the second semi-transparent and semi-reflective mirror 600 to perform fluorescence lifetime information measurement and can obtain a fluorescence decay curve.

[0170] In addition, the optical path device for the fluorescence lifetime information measurement function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the fluorescence is reflected by the second semi-transparent and semi-reflective mirror 600 to the single photon counter 700, and the second semi-transparent and semi-reflective mirror 600 transmits the fluorescence to the fluorescence spectrum measurement component 500.

[0171] In this application, the parallel laser beam can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 for the laser scribing function, and at the same time, the parallel laser beam can be transmitted through the first semi-transparent and semi-reflective mirror 301 to the first sample placement area 401 to excite the solar panel to emit fluorescence. The second semi-transparent and semi-reflective mirror 600 is used to reflect the fluorescence to the fluorescence spectrum measurement component 500 to achieve fluorescence spectrum measurement, and transmit the fluorescence to the single photon counter 700 to achieve fluorescence lifetime information detection. The optical attenuator 302 is used to attenuate the parallel laser beam for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0172] Figure 10 It is a schematic diagram of another structure of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. As Figure 10 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, a fluorescence spectrum measurement component 500, a second semi-transparent and semi-reflective mirror 600, a single photon counter 700, and a fourth mirror 800.

[0173] The laser 100 emits laser light, and the laser 100 has a light exit on the side close to the lens 200. The lens 200 adjusts the laser light emitted by the laser 100 into a parallel laser beam.

[0174] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0175] The optical path adjustment module 300 includes a first semi-transparent and semi-reflective mirror 301 and an optical attenuator 302.

[0176] The first semi-transparent and semi-reflective mirror 301 can reflect the parallel laser beam to the solar panel in the second sample placement area 402 to achieve the laser scribing function. The first semi-transparent and semi-reflective mirror 301 can transmit the parallel laser beam to the solar panel in the first sample placement area 401 to excite the solar panel to emit fluorescence.

[0177] The optical attenuator 302 can attenuate the parallel laser beam. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser beam will not be elaborated here one by one.

[0178] In addition, the first semi-transparent and semi-reflective mirror 301 can be replaced with a reflective mirror, and the reflective mirror can be turned below the horizontal line of the parallel laser beam, and only the fluorescence spectrum measurement function is operated.

[0179] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the parallel laser beam is reflected by the first semi-transparent and semi-reflective mirror 301 to the first sample placement area 401, so that the parallel laser beam excites the solar panel to emit fluorescence, and the first semi-transparent and semi-reflective mirror 301 transmits the parallel laser beam to the second sample placement area 402 for laser scribing.

[0180] The second semi-transparent and semi-reflective mirror 600 reflects the fluorescence to the fluorescence spectrum measurement component 500 and transmits the fluorescence to the fourth reflector 800.

[0181] The fluorescence spectrum measurement component 500 uses the fluorescence emitted by the solar panel in the first sample placement area 401 reflected by the second semi-transparent and semi-reflective mirror 600 to perform fluorescence spectrum measurement. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0182] The fourth reflector 800 reflects the fluorescence transmitted by the second semi-transparent and semi-reflective mirror 600 to the single photon counter 700.

[0183] The single photon counter 700 uses the fluorescence reflected by the fourth reflector 800 to measure the fluorescence lifetime information and can obtain the fluorescence decay curve.

[0184] In addition, the optical path device for the fluorescence lifetime information measurement function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the fluorescence is reflected by the second semi-transparent and semi-reflective mirror 600 to the fourth reflector 800, and the second semi-transparent and semi-reflective mirror 600 transmits the fluorescence to the fluorescence spectrum measurement component 500.

[0185] In this application, the parallel laser beam can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 to perform the laser scribing function, and at the same time, the parallel laser beam can be transmitted to the first sample placement area 401 to excite the solar panel to emit fluorescence. The second semi-transparent and semi-reflective mirror 600 is used to reflect the fluorescence to the fluorescence spectrum measurement component 500 to realize fluorescence spectrum measurement, and transmit the fluorescence to the fourth reflector 800. The fourth reflector 800 reflects the fluorescence to the single photon counter 700 to realize fluorescence lifetime information detection. The optical attenuator 302 is used to attenuate the parallel laser beam for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0186] Figure 11Another structural schematic diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of the present application. As Figure 11 shown, the device includes:

[0187] A laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, a fluorescence spectrum measurement component 500, and a single photon counter 600.

[0188] The laser 100 emits laser light, and the side of the laser 100 close to the lens 200 has a light outlet. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light.

[0189] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned above, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0190] The optical path adjustment module 300 includes a first semi-transparent semi-reflective mirror 301, an optical attenuator 302, and a second reflector 303. The optical path adjustment module 300 further includes a third reflector 304.

[0191] The first semi-transparent semi-reflective mirror 301 can reflect the parallel laser light to the solar cell panel in the second sample placement area 402 to achieve the function of laser scribing. The first semi-transparent semi-reflective mirror 301 can transmit the parallel laser light to the second reflector 303.

[0192] The second reflector 303 reflects the parallel laser light to the solar cell panel placed in the first sample placement area 401, so that the solar cell panel emits fluorescence after being excited by the parallel laser light.

[0193] The optical attenuator 302 can attenuate the parallel laser light. Among them, the optical attenuator 302 can be placed between the first semi-transparent semi-reflective mirror 301 and the second reflector 303, or can be placed between the second reflector 303 and the first sample placement area 401. As mentioned above, the specific process and function of the optical attenuator 302 attenuating the parallel laser light will not be elaborated here one by one.

[0194] In addition, the first semi-transparent semi-reflective mirror 301 can be replaced with a reflector, and the reflector is turned below the horizontal line of the parallel laser light to only operate the fluorescence spectrum measurement function.

[0195] In addition, the optical path device for the laser scribing function and the optical path device for the fluorescence spectrum measurement function can be swapped in position. That is, the parallel laser light is reflected by the first semi-transparent semi-reflective mirror 301 to the second reflector 303, so that the parallel laser light excites the solar cell panel to emit fluorescence, and the first semi-transparent semi-reflective mirror 301 transmits the parallel laser light to the second sample placement area 402 for laser scribing.

[0196] The third reflector 304 reflects the fluorescence to the fluorescence spectrum measurement component 500. When it is necessary to detect the fluorescence lifetime information of the fluorescence using the single-photon counter 600, the third reflector 304 can be folded to an angle where there is no obstruction to the fluorescence, so that the fluorescence irradiates into the single-photon counter 600.

[0197] The fluorescence spectrum measurement component 500 performs fluorescence spectrum measurement using the fluorescence emitted by the solar panel in the first sample placement area 401 reflected by the third reflector 304. As mentioned before, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0198] When the third reflector 304 is folded to a position where it does not obstruct the fluorescence, the single-photon counter 600 detects the fluorescence lifetime information of the fluorescence and can obtain a fluorescence decay curve.

[0199] In this application, the parallel laser light can be reflected by the first semi-transparent and semi-reflective mirror 301 to the second sample placement area 402 for the laser scribing function, and at the same time, the parallel laser light can be transmitted to the second reflector 303. The second reflector 303 reflects the parallel laser light to the first sample placement area 401 to excite the solar panel to emit fluorescence. The third reflector 304 is used to reflect the fluorescence to the fluorescence spectrum measurement component 500 to achieve fluorescence spectrum measurement. When the third reflector 304 does not reflect the fluorescence, the single-photon counter 600 can be used to detect the fluorescence lifetime information. The optical attenuator 302 attenuates the parallel laser light used for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0200] Figure 12 Another structural schematic diagram of a device for measuring the fluorescence spectrum of a solar cell provided by an embodiment of this application. As Figure 12 shown, the device includes: a laser 100, a lens 200, an optical path adjustment module 300, a sample placement area 400, a fluorescence spectrum measurement component 500, and a single-photon counter 600.

[0201] The laser 100 emits laser light, and there is a light output port on the side of the laser 100 close to the lens 200. The lens 200 adjusts the laser light emitted by the laser 100 into parallel laser light.

[0202] The sample placement area 400 includes a first sample placement area 401 and a second sample placement area 402. As mentioned before, the specific functions of the sample placement area 400 will not be elaborated here one by one.

[0203] The optical path adjustment module 300 includes a first semi-transmissive and semi-reflective mirror 301 and an optical attenuator 302. The optical path adjustment module 300 further includes a second reflector 303.

[0204] The first semi-transmissive and semi-reflective mirror 301 can reflect parallel laser light rays to the solar panel in the second sample placement area 402 to achieve the function of laser scribing. The first semi-transmissive and semi-reflective mirror 301 can transmit parallel laser light rays to the solar panel in the first sample placement area 401 to excite the solar panel to emit fluorescence.

[0205] The optical attenuator 302 can attenuate parallel laser light rays. As mentioned above, the specific process and function of the optical attenuator 302 attenuating parallel laser light rays will not be elaborated here one by one.

[0206] In addition, the first semi-transmissive and semi-reflective mirror 301 can be replaced with a reflector, and the reflector is turned below the horizontal line of the parallel laser light rays to only operate the fluorescence spectrum measurement function.

[0207] In addition, the optical path devices for the laser scribing function and the optical path devices for the fluorescence spectrum measurement function can be swapped in position. That is, parallel laser light rays are reflected by the first semi-transmissive and semi-reflective mirror 301 to the first sample placement area 401 to cause the parallel laser light rays to excite the solar panel to emit fluorescence, and the first semi-transmissive and semi-reflective mirror 301 transmits the parallel laser light rays to the second sample placement area 402 for laser scribing.

[0208] The second reflector 303 reflects the fluorescence emitted by the solar panel in the first sample placement area 401 after being excited by parallel laser light rays to the fluorescence spectrum measurement component 500. When it is necessary to detect the fluorescence lifetime information of the fluorescence using the single-photon counter 600, the second reflector 303 can be folded to an angle that does not block the fluorescence, so that the fluorescence irradiates into the single-photon counter 600.

[0209] The fluorescence spectrum measurement component 500 performs fluorescence spectrum measurement on the fluorescence reflected by the second reflector 303. As mentioned above, the specific process of the fluorescence spectrum measurement component 500 obtaining the fluorescence spectrum will not be elaborated here one by one.

[0210] The single-photon counter 600 detects the fluorescence lifetime information of the fluorescence when the second reflector 303 is folded to not obstruct the fluorescence, and a fluorescence decay curve can be obtained.

[0211] In this application, the parallel laser light can be reflected by the first semi-transmissive and semi-reflective mirror 301 to the second sample placement area 402 for laser scribing function, and at the same time, the parallel laser light can be transmitted to the first sample placement area 401 to excite the solar panel to emit fluorescence. The second reflector 303 is used to reflect the fluorescence to the fluorescence spectrum measurement component 500 to achieve the fluorescence spectrum measurement of the fluorescence. When the second reflector 303 has no reflection on the fluorescence, the single photon counter 600 can be used to detect the fluorescence lifetime information. The optical attenuator 302 is used to attenuate the parallel laser light for fluorescence spectrum measurement. Therefore, the damage to the structure and materials of the solar panel during the manufacturing process of the solar cell can be reduced, and the manufacturing efficiency of the solar cell can be further improved.

[0212] In the embodiments of this application, the "first", "second" (if any) in the names such as "the first" and "the second" are only used as name identifiers and do not represent the first and second in order.

[0213] It should be noted that the embodiments in this specification are all described in a progressive manner. The same or similar parts between the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative work.

[0214] As mentioned above, it is only a specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in this application should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A device for measuring the fluorescence spectrum of a solar cell, characterized in that, The device includes: a laser, a lens, an optical path adjustment module, a sample placement area, and a fluorescence spectrum measurement component; The sample placement area is used for placing a solar panel. The size of the sample placement area is adjusted according to the size of the solar panel. The sample placement area includes a first sample placement area and a second sample placement area; The lens is used to adjust the laser emitted by the laser into parallel laser rays; The optical path adjustment module is used to cause the solar panel placed in the first sample placement area to emit fluorescence after being excited by the parallel laser rays, and is used to scribe the solar panel placed in the second sample placement area with the parallel laser rays; The fluorescence spectrum measurement component is used to measure the fluorescence spectrum of the fluorescence.

2. The device according to claim 1, characterized in that, The optical path adjustment module specifically includes: a first reflector; The first reflector is used to reflect the parallel laser rays to the solar panel placed in the second sample placement area, and is used to flip the first reflector below the horizontal line of the parallel laser rays, so that the solar panel placed in the first sample placement area is excited by the parallel laser rays to emit fluorescence.

3. The device according to claim 1, characterized in that, The optical path adjustment module specifically includes: a first semi-transmissive semi-reflective mirror, a second reflector, and an optical attenuator; The first semi-transmissive semi-reflective mirror is used to reflect the parallel laser rays to the solar panel placed in the second sample placement area, and is used to transmit the parallel laser rays to the second reflector; The second reflector is used to reflect the parallel laser rays transmitted by the first semi-transmissive semi-reflective mirror to the solar panel placed in the first sample placement area, so that the solar panel placed in the first sample placement area is excited by the parallel laser rays to emit fluorescence; The optical attenuator is used to attenuate the parallel laser rays that excite the solar panel placed in the first sample placement area to emit fluorescence.

4. The device according to claim 3, characterized in that, The optical attenuator is arranged between the first semi-transmissive semi-reflective mirror and the second reflector, or is arranged between the second reflector and the first sample placement area.

5. The device according to claim 1, characterized in that, The optical path adjustment module specifically includes: a first semi-transmissive semi-reflective mirror and an optical attenuator; The first semi-transmissive semi-reflective mirror is used to reflect the parallel laser rays to the solar panel placed in the second sample placement area, and is used to transmit the parallel laser rays to the solar panel placed in the first sample placement area, so that the solar panel placed in the first sample placement area is excited by the parallel laser rays to emit fluorescence; The optical attenuator is used to attenuate the parallel laser rays that excite the solar panel placed in the first sample placement area to emit fluorescence.

6. The device according to claim 4, characterized in that The optical path adjustment module further includes: a third reflector; The third reflector is used to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence.

7. The device according to claim 5, characterized in that, The optical path adjustment module further includes: a second reflector; The second reflector is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to fold the second reflector below the horizontal line of the fluorescence so as to detect the fluorescence lifetime information of the fluorescence.

8. The device according to claim 4, characterized in that The device further includes: a second semi-transmissive semi-reflective mirror and a single photon counter; The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the single photon counter; The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

9. The device according to claim 4, characterized in that The device further includes: a second semi-transmissive semi-reflective mirror, a fourth reflector and a single photon counter; The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the fourth reflector; The fourth reflector is configured to reflect the fluorescence to the single photon counter; The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

10. The device according to claim 5, characterized in that, The device further includes: a second semi-transmissive semi-reflective mirror and a single photon counter; The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the single photon counter; The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

11. The device according to claim 5, characterized in that, The device further includes: a second semi-transmissive semi-reflective mirror, a fourth reflector and a single photon counter; The second semi-transmissive semi-reflective mirror is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to transmit the fluorescence to the fourth reflector; The fourth reflector is configured to reflect the fluorescence to the single photon counter; The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

12. The device according to claim 6, wherein The device further includes: a single photon counter; The third reflector is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to fold the third reflector to an angle where it does not reflect the fluorescence so as to detect the fluorescence lifetime information of the fluorescence; The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

13. The device according to claim 7, wherein The device further includes: a single photon counter; The second reflector is configured to reflect the fluorescence to the fluorescence spectrum measurement component to obtain the fluorescence spectrum of the fluorescence, and to fold the second reflector to an angle where it does not reflect the fluorescence so as to detect the fluorescence lifetime information of the fluorescence; The single photon counter is configured to detect the fluorescence lifetime information of the fluorescence.

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