Polarized VUV absorption and reflection spectra of oriented films of poly(tetrafluoroethylene) (CF2)n and its model compound

Synergistic Formation of Radicals by Irradiation with Both Vacuum Ultraviolet and Atomic Hydrogen: A Real-Time In Situ Electron Spin Resonance Study

“…For VUV irradiation, a strong absorption energy of approximately 7.8 eV, which corresponds to a VUV wavelength of 160 nm, was reported by Nagayama et al 29 This is in agreement with the C-DB created on the PTFE film by VUV irradiation in our experiments. (In addition, there was no formation of C-DB when the MgF 2 window material was changed to an optical filter that cut the wavelengths to as low as 250 nm.)…”