Maximize Efficiency and Energy Production in Solar Cells

Germany’s Fraunhofer Institute ISE has developed a manufacturing technique that would significantly facilitate for higher electricity production of currently used photovoltaic or solar cells.

The solar power sector is welcoming this breakthrough development because apparently, there is a need to further increase the production of electricity of solar cells without further raising the area used for the facility.

The technique called metal wrap through or MWT has three manufacturing steps.
First, laser holes need to be drilled across the solar cell. Contacts on the photovoltaic cells’ rear have to be applied using a screen print process. Vias should also be created at the same time.

Conducting material should be used in screen print pastes and then, insulators would need to coat the contacts.

The photovoltaic cells’ contact pads should be displaced to the backside from the frontside. This way, the metalized area in the cells’ front side would be reduced significantly by up to half or 50%. By that, the area saved could be freely used in the generation of more electricity.

Obviously, the process would make current photovoltaic cells and sites more efficient and the production capacity would be boosted.