Lasers: a Key Solar Industry Technology
The solar industry is committed to further slashing the cost of photovoltaic renewable power. In manufacturing solar modules, laser processing takes center stage. Lasers offer additional benefits such as improving solar-cell efficiency through full-surface structuring of back contact cells.
Typical laser processes in the solar industry:
Full-surface structuring of silicon wafers
Fast cutting of crystalline solar cells and silicon wafers with high precision and low thermal input
Laser Junction Isolation
Precise, dependable electrical isolation of front and backside solar cells after doping
Laser-Selective Emitter Doping
Local, selective over-doping of crystalline solar cell emitters for improved efficiency
Soldering and Welding of Solar Modules
Fast and gentle method ideal for advanced cell designs
Labeling of solar cells, e.g. for batch tracking
Laser Drilling for Back-Side Contacts
Modern cell designs, such as Metal Wrap-Through (MWT) or Emitter Wrap-Through (EWT), use lasers to drill silicon wafers. Depending on the design, tens of thousands of bore holes are necessary.
Learn more about the EU's 'Solasys' project – Next Generation Solar Cell and Module Laser Processing System – in which SCANLAB participated.
As an OEM partner, SCANLAB manufactures a wide variety of scan solutions suitable for usage in laser processing machines.
Learn more about our scan systems that you can use for the above-mentioned applications.