As an industrialized tool, fiber laser is a key technology in the photovoltaic industry. It can be used for a wide range of applications, such as edge isolation, edge deletion, crystal damage removal, and thin-film ablation. Laser cutting machine China can produce high-efficiency solar cells while ensuring lower costs, and obtain higher corporate benefits. Therefore, more and more manufacturers introduce various fiber laser machine to increase their productivity and optimize the overall efficiency of the enterprise.
How Does Fiber Laser Support The Photovoltaic Industry?
Silicon cells play a prominent role in photovoltaic power generation, whether it is a crystalline silicon cell or a thin-film silicon cell. The high-purity single crystal/polycrystal is cut into silicon wafers for batteries, which can be accurately cut, shaped by lasers, and then assembled into strings after being made into batteries.
In the photovoltaic industry, laser technology is increasingly used in doping processes. These include marking, thin-film patterning, and micromachining applications relevant to photovoltaic manufacture. Besides, lasers have a great impact on cost reduction since they simply the process steps when compared to the conventional techniques.
How Fiber Laser Makes Your Silicon Cells Stand Out?
● Arrange and scribe
Aligning silicon wafers with fiber lasers is a common online process for automatic string welding of solar cells. Connecting solar cells in this way reduces storage costs and makes the battery string arrangement of each module more orderly and compact.
● Cutting Technique
The use of fiber laser cutter to scribe and cut silicon wafers is currently very advanced. The removal of the films from a band around the edge of amorphous silicon thin-film cells requires high peak power, good pulse energy control, and stability. And fiber laser features high precision, high repeatability, stable work, fast speed, simple operation, and convenient maintenance.
● Edge passivation treatment
Using a laser with high energy and high power can quickly passivate the edge of the cell and prevent excessive power loss. With the laser-shaped groove, the energy loss caused by the leakage current of the solar cell is greatly reduced, from 10-15% of the traditional chemical etching process to 2-3% of the laser technology.
● Wafer marking
A significant application of lasers in the silicon photovoltaic industry is to mark silicon wafers without affecting the conductivity of the silicon wafers. Wafer marking can help manufacturers track their solar supply chain and ensure stable quality.
Conclusion
As the large-scale production of enterprises continues to increase, it also promotes the development of the laser technology industry. Fiber lasers provide the best combination of power stability, focusability, and efficiency available in the industrial laser market. In the production of crystalline silicon solar cells, China fiber laser technology is used to cut silicon wafers and edge insulation. The doping at the edge of the battery is to prevent short circuits between the front electrode and the back electrode. In this application, Hymson fiber laser has completely outperformed other traditional processes. I believe that fiber lasers will provide more cost-effective solutions for the production process of photovoltaic-related industries in the future.
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