Rapid, Chemical-Free Generation of Optically Scattering Structures in Poly(ethylene terephthalate) Using a CO₂ Laser for Lightweight and Flexible Photovoltaic Applications

Table 1

The range of setting sued for laser engineering structures onto the PET surface. Every combination was tested, resulting in 64 total sample types.

Laser power (%)	Scanning speed (mm/s)	Line spacing (μm)
5 (3.75 W)	100	300
10 (6.33 W)	200	400
15 (11.25 W)	300	500
20 (14.67 W)	400	600