Silver-free Metallization of Solar Cells by Means of Laser and Screen Printing
The newly developed process combines the LIFT (Laser Induced Forward Transfer) process and screen printing to produce the front contacts of solar cells.
The combination allows the minimization of contact and line resistances even in industrial scale production and is associated with substantially reduced costs of materials. In particular, silver is being replaced with nickel or copper.
In addition to saving costs by not using silver the process optimizes the contact and line resistance which increases the solar cell's efficiency.
The German patent has been granted.
Further information: PDF
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