Laser drilling of photovoltaic panels

Can laser drilling be used for solar cell devices?

Laser drilling has also been used for solar cell devices, as shown in Fig. 19 (Gupta and Carlson 2015 ). Small holes allow the emitter current generated in the front of the cell to be transferred to the back of the cell for bus bar connections. Silicon solar cell device with laser formed buried contacts. (Reproduced from Bruton et al. 2003)

How can laser processing improve crystalline silicon solar cells?

Laser processing has become a key technology for the industrial production of crystalline silicon solar cells reaching higher conversion efficiencies. Enhancements of the current solar cell tech-nology are achieved by using advanced ap-proaches like laser grooved front contacts or selective emitter structures.

Can laser processing systems be used for photovoltaic applications?

The laser processing systems for photovoltaic applications have advanced such that commercial systems are available. These commercial systems can provide multifunctional capabilities such that ohmic contact formation, dopant activation, and other steps that can be carried out using the same machine.

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.

Can laser processing be used for perovskite solar cells?

Another application of laser processing for perovskite solar cells was demonstrated by Wilkes et al. in 2018. In perovskite solar cells, the electron transporting layer, most commonly TiO 2, requires high temperature (>450 °C) annealing, making it undesirable for the use of flexible plastic substrates.

What are the applications of high-power laser processing for photovoltaic devices?

The various applications of high-power laser processing for photovoltaic devices have been discussed, but lasers also play an important role in medical device manufacturing for cutting, marking, and drilling applications.