阅读说明：本技术 一种太阳能电池快速光衰方法及设备 (Solar cell rapid light attenuation method and device ) 是由 朱俊 朱凡 黄海平 李志刚 陆红艳 于 2020-06-10 设计创作，主要内容包括：本发明提供一种太阳能电池快速光衰方法及设备,在一定温度下对太阳能电池采用激光光源进行照射,使得太阳能电池进行快速光衰,其中激光光源发出的激光照射在太阳能电池上的光斑为平顶光斑,且覆盖太阳能电池。本发明用稳定的、高光强的、长寿命的激光器作为光源,大大减少了太阳能电池的光衰时间,使得快速、及时反映太阳能电池光衰检验结果成为可能；同时也极大地提高工作效率,减少电能消耗、减少设备维护费用,节约了成本。(The invention provides a method and equipment for quickly attenuating light of a solar cell, wherein the solar cell is irradiated by a laser light source at a certain temperature to realize quick attenuation of the light of the solar cell, and light spots emitted by the laser light source and irradiated on the solar cell are flat-top light spots and cover the solar cell. The invention uses a stable, high-light-intensity and long-life laser as a light source, thereby greatly reducing the light decay time of the solar cell and making it possible to quickly and timely reflect the light decay test result of the solar cell; meanwhile, the working efficiency is greatly improved, the electric energy consumption is reduced, the equipment maintenance cost is reduced, and the cost is saved.)

1. A solar cell rapid light attenuation method is characterized in that: the method comprises the following steps:

the solar cell is irradiated by the laser light source at a certain temperature, so that the solar cell is subjected to rapid light attenuation, wherein a light spot irradiated on the solar cell by the laser light emitted by the laser light source is a flat-top light spot and covers the surface of the solar cell.

2. The method for rapid light decay of a solar cell according to claim 1, wherein: the certain temperature is 50-300 ℃.

3. The method for rapid light decay of a solar cell according to claim 1, wherein: the light intensity of the laser irradiation on the surface of the solar cell is more than or equal to 20kW/m²。

4. The method for rapid light decay of a solar cell according to claim 1, wherein: the irradiation time of the laser light source is 10s-200 s.

5. The method for rapid light decay of a solar cell according to claim 1, wherein: the laser is infrared laser.

6. The method for rapid light decay of a solar cell according to claim 1, wherein: in the irradiation process of the laser light source, the solar cell is subjected to temperature control, so that the solar cell is maintained in a certain fluctuation range above and below a certain temperature.

7. The method for rapid light decay of a solar cell according to any one of claims 1 to 6, wherein: the method comprises the following steps:

s1, preheating the solar cell to reach the certain temperature;

s2, keeping the preheated solar cell at a certain temperature, and irradiating the solar cell by adopting a laser light source to enable the solar cell to perform rapid light attenuation, wherein a light spot irradiated on the solar cell by laser emitted by the laser light source is a flat-top light spot and covers the solar cell;

and S3, cooling the solar cell.

8. An apparatus for implementing the solar cell fast light attenuation method as claimed in claim 1, characterized in that: the equipment comprises a laser device, an objective table and a temperature control device; wherein the content of the first and second substances,

the solar cell is placed on the objective table, the temperature control device is used for enabling the solar cell to be at a certain temperature, and the laser device is used for irradiating laser subjected to flat top shaping to the solar cell;

the laser device comprises a laser and a laser shaping device, the laser is used for emitting laser, and the laser shaping device is used for carrying out flat top shaping on the laser emitted by the laser to a certain size to cover the surface of the solar cell.

9. The apparatus of claim 8, wherein: the laser shaping device is an optical diffraction device or an optical fiber laser homogenizer.

10. The apparatus according to claim 8 or 9, characterized in that: the equipment also comprises a feeding device used for feeding the object stage.

11. The apparatus according to claim 8 or 9, characterized in that: the equipment also comprises a blanking device used for blanking the objective table.