manz - passion for efficiency

To do so, Manz AG uses high-efficiency laser processes which can be used to achieve this goal.

To generate a selective emitter, Manz AG uses a laser-based procedure developed by the IPE (University of Stuttgart Institute for Physical Electronics). With this technology, using an additional laser-processing step, the level of doping under the contact structure which is applied in a later stage of the process is increased significantly.

In conjunction with Manz’s HAP (high-accuracy printer), an increase in the solar cell’s efficiency of up to 0.5% can be achieved. During the development of these systems, Manz took steps to ensure that existing cell production lines could be upgraded.

Manz’s laser systems can also be used in other process steps:

• Laser edge isolation
• Laser drilling to generate back-contact cells such as MWT and EWT
• Opening dielectric layers