Paper
The DX centre
T.N. Morgan
Semiconductor Science and Technology
The often observed decrease in relative permittivity (ε') and refractive index (n) that accompanies fluorine substitution is the result of several effects. Fluorine replacement for hydrogen is known to decrease local electronic polarization and is thought to frequently increase fractional free volume. Both of these effects can independently decrease ε' and n, and this paper attempts to assign the observed decreases between these mechanigms for a series of hydrogen/fluorine polyimide analogs.
T.N. Morgan
Semiconductor Science and Technology
Ronald Troutman
Synthetic Metals
S. Cohen, T.O. Sedgwick, et al.
MRS Proceedings 1983
F.J. Himpsel, T.A. Jung, et al.
Surface Review and Letters