Ion induced structures and electrical conduction in implanted polymer films
A conducting-grain picture is presented, based on the idea that the ion-polymer interaction process can be simply described as a rapid dissipation of the thermal energy converted from the kinetic energy in the ion track region. Thermal dissipation and efficiency through electronic ionization and nuclear collisions are quite different. A critical transient temperature, determined by the critical energy deposition density, is necessary to activate a thermodynamic relaxation process along the ion track creating conducting graphitic grains. Our high resolution temperature-dependent dc conductivity data reveal a two component conductivity that depends on both one-dimensional variable-range hopping (VRH) and three-dimensional VRH. The relative importance of 3-D VRH conductivity over the entire conductivity seems to depend on the relative rate of the ion energy loss through electronic ionization processes. © 1993.
Physics, Astronomy, and Materials Science
Wang, Y. Q., R. E. Giedd, and L. B. Bridwell. "Ion induced structures and electrical conduction in implanted polymer films." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 79, no. 1-4 (1993): 659-663.
Nuclear Inst. and Methods in Physics Research, B