Electrical Transport and Magnetoconductivity in Doped Polypyrrole
作者： M. D. Migahed , T. Fahmy , S. Roth
DOI: 10.1007/978-1-4899-0112-5_36
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摘要: Polypyrrole doped with Toluene-p-sulfonate (PPy (TOS)) has been prepared electrochemically at different current densities. It was found that, electrical conductivity (a) a great dependence on the density i.e., (σ = 0.17 and 50 S/cm j= 0.5 7.5 mA/cm2 respectively), fitted according to Mott’s equation in wide range of temperature from 18 K 200 good agreement 3D-system. In addition, it observed polypyrrole samples have strong positive magnetoresistance very low temperatures quadratic behavior small magnetic fields, up H= 5T.
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