Design and Surface Modification of PET Substrates Using UV/Ozone Treatment for Roll-to-Roll Processed Solar Photovoltaic (PV) Module Packaging

摘要

For many flexible electronic and photonic devices, roll-to-roll processing technology has been a novel driving force for their development. This processing technology can also be applied to solar photovoltaic (PV) module packaging. However, to fit its processing needs, there are several challenges. This paper presents surface modification of PET carrier film using UV/Ozone treatment to improve adhesion with the adhesive material. Whereas previous studies also utilized treatment methods to increase the wettability characteristics, in this paper we present the results of a relatively weaker irradiation technique, UV/Ozone treatment at room temperature condition. We found that this treatment method increases the wettability or surface energy by up to 1.4-fold and demonstrates a 28.3% increase in average adhesion strength.