The influence of the electron-electron Coulomb interaction on the low-temperature conductivity of ion-irradiated polyimide films
- 1 April 1992
- journal article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 65 (4) , 783-788
- https://doi.org/10.1080/13642819208204918
Abstract
The transport mechanism of charge carriers in thermally stable polymer (polyimide) films, irradiated with a combination of Ar+ and Ga+ ions, has been investigated. Such irradiation increased the electrical conductivity of modified layers by more than seven orders of magnitude, so that it reached 103 S cm−1. It is concluded that the electron-ectron Coulomb interaction influences the low-temperature conductivity of ion-irradiated polyimide films near the metal-insulator transition, just as it does in the case of crystalline and amorphous semiconductors. Values of the localization radius, the permittivity and the density of the localized states are determined.Keywords
This publication has 6 references indexed in Scilit:
- Effect of magnetic ordering on the conductivity of ion-bombarded polyimideSolid State Communications, 1989
- Role of the modifications induced by ion beam irradiation in the optical and conducting properties of polyimideNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- An experimental determination of the critical exponents at the metal-insulator transitionSolid State Communications, 1983
- Electrical and optical properties of ion-irradiated organic polymer Kapton HApplied Physics Letters, 1983
- Ion-beam-induced conductivity in polymer filmsJournal of Applied Physics, 1983
- Scaling theory of the metal-insulator transition in amorphous materialsPhysical Review B, 1981