Journal of Chemical Physics, Vol.112, No.7, 3333-3338, 2000
Intramolecular energy-band dispersion in oriented thin films of n-CF3(CF2)(22)CF3 observed by angle-resolved photoemission with synchrotron radiation
Angle-resolved ultraviolet photoelectron spectra were measured for oriented films of perfluorotetracosane, n-CF3(CF2)(22)CF3, 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. (C) 2000 American Institute of Physics. [S0021-9606(00)70206-6].
Keywords:RAY PHOTOELECTRON-SPECTROSCOPY;ELECTRONIC-STRUCTURE;CHEMICALSUBSTITUTION;VUV ABSORPTION;MODEL-COMPOUND;POLY(TETRAFLUOROETHYLENE);POLYTETRAFLUOROETHYLENE;POLYETHYLENE;BIS(1;2;5-THIADIAZOLO)-P-QUINOBIS(1;3-DITHIOLE);ORIENTATION