X-ray photoelectron spectroscopy of KrF laser-irradiated polycarbonate films

✍ Scribed by P. Lemoine; K. Cazzini; I.T. McGovern; W.J. Blau; P. Bätz; C. Ziegler; W. Göpel

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 363 KB
• Volume: 220
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)00175-8

✦ Synopsis

Spun films of polycarbonate were photoablated in air at 248 ML The etch and incubation data have a superlinear dependence on the laser fluence. The surface compositional changes were analysed by X-ray photoelectron spectroscopy (XPS). As evidenced by the decrease of the O/C ratio, photoablation is inferred as distinct from the low-intensity photooxidative degradation. A direct correlation is observed between the XPS and incubation data and the ablation seems to occur by chain scission at the C-O bond, the fully incubated surface being an average of monomeric composition.