Intramolecular energy-band dispersion in oriented thin films of n-CF_3(CF_2)_(22)CF_3 observed by angle-resolved photoemission with synchrotron radiation

摘要

Angle-resolved ultraviolet photoelectron spectra were measured for oriented films of perfluorotetracosane,n-CF_3(CF_2)_(22)CF_3,as a model compound of poly(tetrafluoroethylene) using synchrotron radiation.The main spectral features showed continuous changes in both peak positions and intensities with photon energy, incident angle,and photoelectron take-off angle. The intramolecular energy-band dispersion of poly(tetrafluoroethylene) was mapped from the photo-energy dependence of the normal emission spectra.