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- W1967701600 abstract "Abstract The electrical resistance (temperature and pressure dependence) and room temperature compressibility measurements for electrochemically synthesized polypyrrole are reported. We find that in this relatively highly conducting (20 S cm −1 ) polymer the conducting mechanism is governed by variable range hopping. From the pressure dependence of Mott's parameter, T o , corrected for by compressibility data, the density of localized states at the Fermi level can be evaluated and has been found to increase by about 70% up to 1.5 GPa. From the experimental data of resistance and compressibility, β, we derive an expression for the pressure dependence of the conductivity, σ ( P ) = σ ( T )(1 + βP ) exp[( P / P o ) n ], where n ⋍ 3 4 ." @default.
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- W1967701600 date "1990-12-01" @default.
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- W1967701600 title "Density of state variation in polypyrrole as a function of pressure up to 1.5 GPa" @default.
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- W1967701600 doi "https://doi.org/10.1016/0379-6779(90)90188-q" @default.
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