Advanced Laser Processing for Photovoltaics

Teacher in charge: Prof. Paolo Villoresi



In the fabrication of a silicon PV solar cell certain step processes involve direct material ablation.
Realization of openings in the dielectric layer for contact deposition
Edge insulation
It has been sperimentally proven that it’s possible to use sub-picosecond pulses with photon energies above the silicon bandgap to selectively delaminate the dielectric layer without noticeable damage to the opened surface. Therefore the need for a model able to predict the interaction between ultrashort pulses and matter.