CN109872964B - Texturing device and texturing process for black silicon solar cell - Google Patents
Texturing device and texturing process for black silicon solar cell Download PDFInfo
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- CN109872964B CN109872964B CN201910268623.XA CN201910268623A CN109872964B CN 109872964 B CN109872964 B CN 109872964B CN 201910268623 A CN201910268623 A CN 201910268623A CN 109872964 B CN109872964 B CN 109872964B
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- 229910021418 black silicon Inorganic materials 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 210000002268 wool Anatomy 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 210000004209 hair Anatomy 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Photovoltaic Devices (AREA)
Abstract
The invention discloses a black silicon solar cell texturing device and a black silicon solar cell texturing process, which are convenient for black silicon wafer texturing and improve the texturing efficiency. The texturing device of the black silicon solar cell comprises a base; the center of the base is provided with a texturing groove, one side of the texturing groove is provided with a basket conveying platform, and the other side of the texturing groove is provided with a basket output platform; an inclined plane is arranged between the flower basket output platform and the wool making groove; and a basket conveying device is arranged above the texturing groove. The texturing process of the texturing device adopting the black silicon solar cell comprises the steps of preparing a black silicon wafer basket; conveying the basket to the upper part of the texturing groove through a basket conveying device, immersing the basket into the texturing groove, and enabling the temperature of the texturing liquid to be 80-90 ℃; the texturing time is 20min to 40min; and lifting the basket to a basket output platform through a basket conveying device after the wool making is finished. The texturing device and the texturing process of the black silicon solar cell are convenient to operate, and the quality of the black silicon wafer after texturing can be ensured.
Description
Technical Field
The invention relates to texturing of a black silicon cell, in particular to a texturing device of a black silicon solar cell.
Background
It is well known that: a solar cell, also called a "solar chip" or a "photovoltaic cell", is a photovoltaic semiconductor sheet that directly generates electricity using sunlight. The device can output voltage and generate current under the condition of loop in moment as long as the device is illuminated by light meeting a certain illumination condition. Physically, solar photovoltaic, simply referred to as photovoltaic.
Solar cells are devices that directly convert light energy into electrical energy through a photoelectric effect or a photochemical effect. Crystalline silicon solar cells working with the photoelectric effect are the main stream, while thin film cells working with the photochemical effect are also in the germination stage.
The existing solar cell generally adopts a common monocrystalline silicon wafer or a polycrystalline silicon wafer; black silicon is a novel electronic material which can greatly improve photoelectric conversion efficiency and is found by the latest research. The black silicon is to turn the silicon wafer into black, and the silicon wafer is also the original silicon wafer, and the surface of the silicon wafer is coated with a layer of coating, so that the reflection can be greatly reduced, and the silicon wafer looks black. The preparation method is to brush a coating, the surface of the coating is provided with a plurality of bulges, and the main component of the coating is silicon dioxide.
Therefore, the black silicon material can be used for manufacturing a solar cell after being subjected to flaking and texturing; however, the existing silicon wafer texturing device is not easy to be used for texturing black silicon wafers.
Disclosure of Invention
The invention aims to provide a black silicon solar cell texturing device and a black silicon solar cell texturing process which are convenient for black silicon wafer texturing and improve the texturing efficiency.
The technical scheme adopted for solving the technical problems is as follows: the texturing device of the black silicon solar cell comprises a base; the center of the base is provided with a texturing groove, one side of the texturing groove is provided with a basket conveying platform, and the other side of the texturing groove is provided with a basket output platform; an inclined plane is arranged between the flower basket output platform and the wool making groove;
upright posts are arranged on two sides of one end of the flower basket conveying platform; upright posts are arranged on two sides of one end of the flower basket output platform;
sliding guide rails are arranged between the stand columns on the same side of the flower basket output platform and the flower basket conveying platform;
a movable cross beam is arranged between the sliding guide rails at the two sides of the flower basket output platform and the flower basket conveying platform; both ends of the movable cross beam are provided with linear driving devices;
the movable cross beam is provided with a vertical telescopic device, the telescopic end of the vertical telescopic device is positioned below the movable cross beam, and the telescopic end of the vertical telescopic device is provided with a mounting plate; clamping plates are arranged at two ends of the mounting plate; a horizontal expansion device is arranged between one end of the clamping plate and the mounting plate;
two sides of the upper end of the texturing groove are provided with a main texturing liquid pipe; a nozzle communicated with a main pipe of the texturing liquid is arranged on the inner wall of the upper end of the texturing groove; the bottom of the texturing groove is provided with a heating device for heating liquid in the texturing groove.
Specifically, the horizontal telescopic device comprises a driving motor; a threaded rod (26) is arranged at one end of the clamping plate, and transverse jacks are arranged at two ends of the mounting plate; one end of the threaded rod is inserted into the transverse jack of the mounting plate;
a turbine is arranged in the mounting plate; the turbine is in threaded fit with a threaded rod (26); the turbine is driven to rotate by a driving motor;
a guide rod is arranged at one end of the clamping plate, and guide holes are formed at two ends of the mounting plate; the guide rod is inserted into the guide hole of the mounting plate.
Further, baffles are arranged on two sides of the opening at the upper end of the texturing groove.
Further, a baffle plate is arranged above the bottom of the texturing groove; the heating device comprises a temperature adjusting device and a resistance heating rod
A heating rod is arranged in the interval between the partition plate and the bottom of the texturing tank; the resistance heating rod is electrically connected with the temperature adjusting device.
Further, support plates are arranged between the upright posts at two sides of one end of the flower basket conveying platform and between the upright posts at two sides of one end of the flower basket output platform; the sliding guide rail is mounted on the support plate.
Further, a wool making liquid storage box is arranged on the base; a booster pump is arranged at the bottom of the texturing liquid storage box; the booster pump is communicated with the main pipe of the texturing liquid.
Preferably, the upright post is a telescopic upright post.
The invention also provides a texturing process of the texturing device adopting the black silicon solar cell, which comprises the following steps:
s1, loading a black silicon wafer into a flower basket, and then placing the flower basket on a flower basket conveying platform;
s2, starting the linear driving device to enable the mounting plate to be located above the flower basket; then starting the vertical telescopic device to enable the mounting plate to descend above the flower basket, enabling the clamping plates to be located on two sides of the flower basket, and then starting the horizontal telescopic device to enable the clamping plates to clamp the flower basket;
s3, starting the vertical telescopic device to enable the mounting plate to be lifted; then, starting a linear driving device to enable the flower basket to move above the wool making groove, and starting a vertical telescopic device to enable the flower basket to be immersed into wool making liquid in the wool making groove; then starting a linear driving device to enable the flower basket to move to one end of the wool making groove;
when the flower basket is immersed below the liquid level of the texturing liquid in the texturing groove, the temperature of the texturing liquid is 80-90 ℃ by adjusting the heating device; the transverse moving speed of the mounting plate is controlled, so that the residence time of the basket in the wool making liquid is 20-40 min;
s4, after the basket moves from one end of the texturing groove to the other end, braking the linear driving device, starting the vertical telescopic device to enable the basket to rise, and then starting the linear driving device to enable the basket to move above the basket output platform;
s5, braking the linear driving device, and starting the vertical telescopic device to enable the flower basket to fall onto the flower basket output platform; then starting the horizontal telescopic device to enable the clamping plate to loosen the flower basket;
s6, starting the linear driving device, so that the mounting plate returns to the initial position again.
The beneficial effects of the invention are as follows: according to the texturing device of the black silicon solar cell, as the basket conveying device is arranged on the texturing groove, the black silicon wafer and the basket can be lifted into the texturing groove, and wet texturing of the black silicon wafer is realized through soaking of texturing liquid in the texturing groove. Thereby avoid when the system fine hair, transport black silicon chip in-process to the black silicon chip surface cause the damage to the coating, can guarantee the quality of black silicon chip, can guarantee simultaneously and be convenient for automatic operation, improve the system fine hair efficiency. Secondly, the black silicon texturing process adopting the texturing device of the black silicon solar cell disclosed by the invention can effectively simplify the texturing process, can be effectively applicable to black silicon texturing, is convenient to operate, and can ensure the quality of black silicon wafers after texturing.
Drawings
Fig. 1 is a perspective view of a texturing apparatus for a black silicon solar cell according to an embodiment of the present invention;
FIG. 2 is a top view of a texturing apparatus for a black silicon solar cell according to an embodiment of the present invention;
FIG. 3 is a front view of a texturing apparatus for a black silicon solar cell according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 2;
FIG. 5 is a cross-sectional view B-B of FIG. 3;
FIG. 6 is an enlarged view of a portion of C in FIG. 5;
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1 to 6, the texturing device of the black silicon solar cell according to the present invention includes a base 1; the center of the base 1 is provided with a texturing groove 2, one side of the texturing groove 2 is provided with a basket conveying platform 3, and the other side is provided with a basket output platform 4; an inclined plane 5 is arranged between the flower basket output platform 4 and the texturing groove 2;
the two sides of one end of the flower basket conveying platform 3 are provided with upright posts 9; the two sides of one end of the flower basket output platform 4 are provided with upright posts 9;
a sliding guide rail 10 is arranged between the upright posts 9 on the same side of the basket output platform 4 and the basket conveying platform 3;
a movable cross beam 11 is arranged between the sliding guide rails 10 on two sides of the basket output platform 4 and the basket conveying platform 3; both ends of the movable cross beam 11 are provided with linear driving devices 22;
the movable cross beam 11 is provided with a vertical telescopic device 13, the telescopic end of the vertical telescopic device 13 is positioned below the movable cross beam 11, and the telescopic end of the vertical telescopic device 13 is provided with a mounting plate 15; clamping plates 16 are arranged at two ends of the mounting plate 15; a horizontal telescopic device is arranged between one end of the clamping plate 16 and the mounting plate 15;
two sides of the upper end of the texturing groove 2 are provided with a main texturing liquid pipe 7; a nozzle 28 communicated with the main wool making liquid pipe 7 is arranged on the inner wall of the upper end of the wool making groove 2; the bottom of the texturing groove 2 is provided with a heating device for heating the liquid in the texturing groove.
Specifically, the vertical telescopic device 13 may be a hydraulic cylinder or an air cylinder;
for ease of control and simplicity of construction, it is preferred that the horizontal telescopic means comprise a drive motor 24; a threaded rod (26) is arranged at one end of the clamping plate 16, and transverse jacks are arranged at two ends of the mounting plate 15; one end of the threaded rod 26 is inserted into the transverse insertion hole of the mounting plate 15;
a turbine 25 is arranged in the mounting plate 15; the turbine 25 is in threaded fit with a threaded rod (26); the turbine 25 is driven to rotate by a driving motor 24;
a guide rod is arranged at one end of the clamping plate 16, and guide holes are arranged at two ends of the mounting plate 15; the guide rod is inserted into the guide hole of the mounting plate 15.
In order to avoid that the texturing liquid splashes out of the texturing groove 2; further, baffles 19 are arranged on two sides of the upper end opening of the texturing groove 2.
In order to facilitate uniform heating of the texturing solution, a baffle plate 18 is arranged above the bottom of the texturing groove 2; the heating device comprises a temperature adjusting device 6 and a resistance heating rod 20
A heating rod 20 is arranged in the interval between the partition plate 18 and the bottom of the texturing groove 2; the resistance heating rod 20 is electrically connected with the temperature adjusting device 6.
In order to facilitate the installation of the sliding guide rail 10, further, support plates 14 are arranged between the upright posts 9 at two sides of one end of the basket conveying platform 3 and between the upright posts 9 at two sides of one end of the basket output platform 4; the sliding guide rail 10 is mounted on a support plate 14.
In order to facilitate the addition of the texturing solution, a texturing solution storage box 8 is further arranged on the base 1; a booster pump 21 is arranged at the bottom of the texturing liquid storage box 8; the booster pump 21 is communicated with the main pipe 7 of the texturing solution.
In order to facilitate the adjustment of the height of the mounting plate 15, further, the upright 9 is a telescopic upright.
The invention also provides a texturing process of the texturing device adopting the black silicon solar cell, which comprises the following steps:
s1, loading a black silicon wafer into a basket 17, and then placing the basket 17 on a basket conveying platform 3;
s2, starting the linear driving device 22 to enable the mounting plate 15 to be positioned above the flower basket 17; then the vertical telescopic device 13 is started, the mounting plate 15 is lowered above the flower basket 17, the clamping plates 16 are positioned on two sides of the flower basket 17, and then the horizontal telescopic device is started, so that the clamping plates 16 clamp the flower basket 17;
s3, starting the vertical telescopic device 13 to enable the mounting plate 15 to be lifted; then, starting a linear driving device 22 to enable the basket 17 to move above the wool making groove 2, and starting a vertical telescopic device 13 to enable the basket 17 to be immersed into wool making liquid in the wool making groove 2; then the linear driving device 22 is started to enable the basket 17 to move to one end of the texturing groove 2;
when the basket 17 is immersed below the liquid level of the texturing liquid in the texturing groove 2, the temperature of the texturing liquid is 80-90 ℃ by adjusting the heating device; and controlling the transverse moving speed of the mounting plate 15 so that the residence time of the basket 17 in the wool making liquid is 20-40 min;
s4, after the basket 17 moves from one end to the other end of the texturing groove 2, braking the linear driving device 22, starting the vertical telescopic device 13 to enable the basket 17 to rise, and then starting the linear driving device 22 to enable the basket 17 to move above the basket output platform 4;
s5, braking the linear driving device 22, and starting the vertical telescopic device 13 to enable the flower basket 17 to fall onto the flower basket output platform 4; then the horizontal telescopic device is started, so that the clamping plate 16 releases the flower basket 17;
s6, the linear driving device 22 is then activated, so that the mounting plate 15 returns to the initial position again.
In summary, according to the texturing device for the black silicon solar cell, as the basket conveying device is arranged on the texturing groove, the black silicon wafer and the basket can be lifted into the texturing groove, and wet texturing of the black silicon wafer is realized through soaking in the texturing liquid in the texturing groove. Thereby avoid when the system fine hair, transport black silicon chip in-process to the black silicon chip surface cause the damage to the coating, can guarantee the quality of black silicon chip, can guarantee simultaneously and be convenient for automatic operation, improve the system fine hair efficiency. Secondly, the black silicon texturing process adopting the texturing device of the black silicon solar cell disclosed by the invention can effectively simplify the texturing process, can be effectively applicable to black silicon texturing, is convenient to operate, and can ensure the quality of black silicon wafers after texturing.
Claims (5)
1. The device for making the wool of the black silicon solar cell is characterized in that: comprises a base (1); the center of the base (1) is provided with a texturing groove (2), one side of the texturing groove (2) is provided with a basket conveying platform (3), and the other side of the texturing groove is provided with a basket output platform (4); an inclined plane (5) is arranged between the flower basket output platform (4) and the texturing groove (2);
the two sides of one end of the flower basket conveying platform (3) are provided with upright posts (9); the two sides of one end of the flower basket output platform (4) are provided with upright posts (9);
a sliding guide rail (10) is arranged between the stand columns (9) on the same side of the flower basket output platform (4) and the flower basket conveying platform (3);
a movable cross beam (11) is arranged between the sliding guide rails (10) on two sides of the basket output platform (4) and the basket conveying platform (3); both ends of the movable cross beam (11) are provided with linear driving devices (22);
a vertical telescopic device (13) is arranged on the movable cross beam (11), the telescopic end of the vertical telescopic device (13) is positioned below the movable cross beam (11), and a mounting plate (15) is arranged on the telescopic end of the vertical telescopic device (13); clamping plates (16) are arranged at two ends of the mounting plate (15); a horizontal telescopic device is arranged between one end of the clamping plate (16) and the mounting plate (15);
two sides of the upper end of the texturing groove (2) are provided with a main texturing liquid pipe (7); a spray head (28) communicated with the main pipe (7) of the texturing solution is arranged on the inner wall of the upper end of the texturing groove (2); the bottom of the texturing groove (2) is provided with a heating device for heating liquid in the texturing groove;
the horizontal telescopic device comprises a driving motor (24);
a threaded rod (26) is arranged at one end of the clamping plate (16), and transverse jacks are arranged at two ends of the mounting plate (15); one end of the threaded rod (26) is inserted into the transverse insertion hole of the mounting plate (15);
a turbine (25) is arranged in the mounting plate (15); the turbine (25) is in threaded fit with a threaded rod (26); the turbine (25) is driven to rotate by a driving motor (24);
a guide rod is arranged at one end of the clamping plate (16), and guide holes are formed at two ends of the mounting plate (15); the guide rod is inserted into the guide hole of the mounting plate (15);
the base (1) is provided with a wool making liquid storage box (8); a booster pump (21) is arranged at the bottom of the texturing liquid storage box (8); the booster pump (21) is communicated with the main flocking liquid pipe (7); the upright post (9) adopts a telescopic upright post.
2. The black silicon solar cell texturing apparatus according to claim 1, wherein: baffle plates (19) are arranged on two sides of the upper end opening of the texturing groove (2).
3. The black silicon solar cell texturing apparatus according to claim 2, wherein: a baffle plate (18) is arranged above the bottom of the texturing groove (2); the heating device comprises a temperature adjusting device (6) and a resistance heating rod (20)
A heating rod (20) is arranged in the interval between the partition plate (18) and the bottom of the texturing groove (2); the resistance heating rod (20) is electrically connected with the temperature regulating device (6).
4. A black silicon solar cell texturing apparatus according to claim 3, wherein: support plates (14) are arranged between the upright posts (9) at two sides of one end of the flower basket conveying platform (3) and between the upright posts (9) at two sides of one end of the flower basket output platform (4); the sliding guide rail (10) is mounted on a support plate (14).
5. A texturing process employing a texturing apparatus for a black silicon solar cell according to any one of claims 1 to 4, comprising the steps of:
s1, loading black silicon chips into a flower basket (17), and then placing the flower basket (17) on a flower basket conveying platform (3);
s2, starting a linear driving device (22) to enable the mounting plate (15) to be positioned above the flower basket (17); then starting the vertical telescopic device (13) to enable the mounting plate (15) to descend above the flower basket (17) and enable the clamping plates (16) to be located on two sides of the flower basket (17), and then starting the horizontal telescopic device to enable the clamping plates (16) to clamp the flower basket (17);
s3, starting the vertical telescopic device (13) to enable the mounting plate (15) to be lifted; then, a linear driving device (22) is started to enable the flower basket (17) to move to the upper portion of the wool making groove (2), and a vertical telescopic device (13) is started to enable the flower basket (17) to be immersed into wool making liquid in the wool making groove (2); then, a linear driving device (22) is started to enable the flower basket (17) to move to one end of the texturing groove (2);
when the flower basket (17) is immersed below the liquid level of the texturing liquid in the texturing groove (2), the temperature of the texturing liquid is 80-90 ℃ by adjusting the heating device; the transverse moving speed of the mounting plate (15) is controlled, so that the residence time of the basket (17) in the wool making liquid is 20-40 min;
s4, after the basket (17) moves from one end to the other end of the texturing groove (2), braking the linear driving device (22), starting the vertical telescopic device (13) to enable the basket (17) to lift, and then starting the linear driving device (22) to enable the basket (17) to move above the basket output platform (4);
s5, braking the linear driving device (22), and starting the vertical telescopic device (13) to enable the flower basket (17) to fall onto the flower basket output platform (4); then starting the horizontal telescopic device to enable the clamping plate (16) to loosen the flower basket (17);
s6, then starting the linear driving device (22) so that the mounting plate (15) returns to the initial position again.
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| CN201910268623.XA CN109872964B (en) | 2019-04-04 | 2019-04-04 | Texturing device and texturing process for black silicon solar cell |
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| CN201910268623.XA CN109872964B (en) | 2019-04-04 | 2019-04-04 | Texturing device and texturing process for black silicon solar cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112582501A (en) * | 2020-12-14 | 2021-03-30 | 张家港博佑光电科技有限公司 | Silicon solar cell RENA polycrystalline texturing processing method |
| CN113871513B (en) * | 2021-09-24 | 2024-05-24 | 温州海旭科技有限公司 | Solar cell sintering device |
| CN116313935B (en) * | 2023-05-15 | 2023-07-25 | 常州市杰洋精密机械有限公司 | Semiconductor silicon wafer texturing machine |
| CN117174781B (en) * | 2023-09-15 | 2024-04-16 | 浙江鸿禧能源股份有限公司 | Monocrystalline silicon wafer cleaning and texturing device and process for TOPCO battery |
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| CN107968064A (en) * | 2017-11-27 | 2018-04-27 | 乐山新天源太阳能科技有限公司 | Silicon wafer wool making transfer device |
| CN108831960A (en) * | 2018-06-20 | 2018-11-16 | 通威太阳能（安徽）有限公司 | A kind of novel monocrystalline silicon texturing slot and its etching method |
| CN209447775U (en) * | 2019-04-04 | 2019-09-27 | 乐山新天源太阳能科技有限公司 | The fluff making device of black silicon solar cell |
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