A quantitative evaluation of metallic conduction in conjugated polymers

Details A quantitative evaluation of metallic conduction in conjugated polymers A quantitative evaluation of metallic conduction in conjugated polymers

2004-11-12

arxiv.org/abs/cond-mat/0411337v1

Physics

Condensed Matter

Materials Science

4 pages incl. 3 figures

Scientific paper

10.1103/PhysRevB.70.241201

As the periodicity in crystalline materials creates the optimal condition for electronic delocalization, one might expect that in partially crystalline conjugated polymers delocalization is impeded by intergrain transport. However, for the best conducting polymers this presumption fails. Delocalization is obstructed by interchain rather than intergrain charge transfer and we propose a model of weakly coupled disordered chains to describe the physics near the metal-insulator transition. Our quantitative calculations match the outcome of recent broad-band optical experiments and provide a consistent explanation of metallic conduction in polymers.

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