Anisotropic Electrical Conductivity of Oriented trans-Polyacetylene Doped with Iodine and Bromine

Abstract

Abstract: According to electron band structures theories, we use EHMO/COprogram package tocalculate two-dimension electron band structures of trans-polyacetylene doped with iodine and bromine and analyse their anisotropies of electrical conductivities.The conductivity ratio of parallel with and perpendicular to molecular chains changes with the energy gap and band width in these two directions.The ratio σ_///σ_⊥ decrases when plyaceyleng is doped, because the dopants set up a floatin bridge between two neighbour chains,and makd the coupling function of interchains increase.The calculated results are in acco rdandc with those of the experiments

Key words: trans-Polyacetylene, Doping, Anisotropy, Two-dimension energy bend

CLC Number:

O641

TrendMD:

WANG Rong-Shun, WANG Cun-Guo, HUANG Zong-Hao, WANG Xiu-Jun, SU Zhong-Min, DI Ying-Wei. Anisotropic Electrical Conductivity of Oriented trans-Polyacetylene Doped with Iodine and Bromine[J]. Chem. J. Chinese Universities, 1999, 20(9): 1438.

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Anisotropic Electrical Conductivity of Oriented trans-Polyacetylene Doped with Iodine and Bromine

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