I'm interested in nanopatterning transparent teflon sheets in a reactive ion etching process. I previously thought an O2 etch would be enough to etch PTFE since it is a polymer however after SEMing the surface does not appear to be changed. Does anyone have any references for etching teflon in an RIE or any recipe recommendations? The nanopatterns i am interested in fabricated would be anywhere from 200-300nm tall.
Thanks!