Dresden 2006 – wissenschaftliches Programm

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CPP: Chemische Physik und Polymerphysik

CPP 18: Polymer Materials II

CPP 18.6: Vortrag

Mittwoch, 29. März 2006, 17:00–17:15, ZEU 114

Insulating to semi-metallic transition of different polymers under low-energy ion bombardment — •Y. Koval, M. S. Alam, and P. Müller — Physikalisches Institut III, Universität Erlangen-Nürnberg, Erwin-Rommel Str. 1, 91058 Erlangen, Germany

It is well known that bombardment of polymers with high-energy ions can transform them from an insulating to a conducting state. On the other hand, low-energy ions are considered to be not suitable for this type of transformation. However, we have found that low-energy ions can be successfully used for a conducting layer formation. Depending on treatment conditions, the conduction mechanism in such layers can vary from hopping of charge carries to semi-metallic behavior. The ultra-small thickness of the conducting layer together with the semi-metal type of conductance can be interesting for polymer electronics technology. Several polymers were investigated in various regimes of low-energy ion bombardment. We present a summary of our recent results.