Laser-Induced Graphene Formation Enhanced by Dielectric Barrier Discharge Plasma on Polyamide Film

Abstract

This research work, demonstrates the surface modification of polyamide films by two processes, cold plasma treatment combined with laser irradiation through laser induced breakdown spectroscopy technique (LIBS). A nanosecond pulsed Nd:YAG laser was employed with various pulse energy of (500, 550, 600) mJ to induce surface carbonization after plasma treatment with various duration of (1,3,5) minutes.  The influence of plasma treatment time on the laser-induced carbonization was studied. The results showed  that plasma pre-treatment is significantly enhancing the laser interaction with the polyamide surface among the examined  durations, 3 minutes of plasma exposure time produced the most intense LIBS spectra. This is leading to optimal surface activation for carbon formation. The obtained results are offering availability of tuning the polyamide surface properties for applications in the field of photonics, sensing, and flexible electronic technologies.