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 does laser technology affect the production of high-quality solar cells?

Laser technology plays a key role in the economical industrial-scale production of high-quality solar cells. Fraunhofer ILT develops industrial laser processes and the requisite mechanical components for a cost-effective solar cell manufacturing process with high process efficiencies.

Which cutting technology is used for halved solar cells?

Currently, infra-red (IR) and non-destructive cutting (NDC) technology are both very useful cutting technologies for halved solar cells. IR technology has been already known conventional scribing method and has been considerably researched.

Do different laser-cutting conditions affect the electrical characteristics of half-cut HJT solar cells?

Hence, in this research, we studied how different laser-cutting conditions affect the electrical characteristics of half-cut HJT solar cells. Firstly, IR laser scribing at the front and rear surfaces of HJT cells was demonstrated to compare surface damage dependence.

Can laser scribing increase solar power?

Nowadays, as wafer sizes continue to increase in the solar industry, the use of half-cut cells has gained attention as a means of increasing the current output by reducing resistive losses. The laser scribing technology cannot increase the output power, as the laser process can cause losses due to laser-induced damages.

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.