Metallic temperature dependence of resistivity in perchlorate doped polyacetylene
作者： Y.W. Park , E.S. Choi , D.S. Suh
DOI: 10.1016/S0379-6779(98)00078-2
关键词: Seebeck coefficient 、 Doping 、 Conductivity 、 Perchlorate 、 Electrical resistivity and conductivity 、 Mineralogy 、 Analytical chemistry 、 Polyacetylene 、 Temperature coefficient 、 Metal 、 Chemistry
摘要: Abstract We have measured the electrical resistivity (ρ) and thermoelectric power (TEP) of perchlorate (ClO4−) doped stretch oriented polyacetylene (PA) film. For highly conducting samples (σRT≈41 000 S/cm), temperature dependence four-probe shows positive coefficient (TCR) from T = 1.5 to 300 K. less samples, data show crossover TCR with a broad minimum peak at ∗ ≈ 200 K . σRT ≥ 20 S/cm, ρ(1.5 ) ρ(300 , i.e., is lower than room value. The TEP diffusive linear metallic becoming independent below 40 Unlike others who used Cu(ClO4)2 for ClO4− doping, initial doping material we anhydrous Fe(ClO4)3 which crucial obtain
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