About Photovoltaic panel cell dicing
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About Photovoltaic panel cell dicing video introduction
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6 FAQs about [Photovoltaic panel cell dicing]
How IR laser scribing is used in PV cell dicing?
First, an IR laser scribe (SJ INNOTECH, Korea) was used for PV cell dicing to compare the front and rear surfaces. The IR laser scribing process was set to 80%, 90% and 100% of the first current and 50%, 60% and 70% of the second current with a 200 kHz laser frequency. Here, the first and second current means the laser power.
What is the scribing speed used for PV cell dicing?
The scribing speed employed for the IR laser was 1000 mm/s and waveform 6. Secondly, NDC laser technology (SSC-8000B supplied by Suzhou Autoway System CO., Ltd, China) was used for PV cell dicing. The NDC laser cutting was performed using first lasers with 75 W, 70 W, and 60 W and second lasers with 60 W, 55 W, and 50 W.
Why is laser dicing used in the PV industry?
In the case of product power, the laser dicing technology has already been used in the PV industry because this technology shows approximately 3 ∼ 5% power gain by half-cell cutting.
How do photovoltaic modules work?
To make electrical connections easier, photovoltaic modules come with a junction box. The direct current (DC) electricity produced by the cells is transformed into alternating current (AC) electricity by an inverter that is fixed to the solar panel. The image below shows the multiple components used in assembling solar modules.
Do laser scribing losses affect photovoltaic electrical characteristics?
Therefore, laser scribing losses have a more substantial influence on the photovoltaic electrical characteristic. It is significantly impacted by high-efficiency solar cells such as heterojunction technology (HJT) and passivated contact solar cells.
How do solar panels work?
The solar industry is used to produce solar cells that absorb light on one side. Recent innovations have allowed the increased production of bi-facial modules, allowing light absorption on both sides of the solar module. Passivated Emitter and Rear Contact (PERC) solar cells are also gaining popularity in solar panel production.