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- W2043583150 abstract "Abstract We present recent results on the effect of side chain length and thermal dedoping on the temperature dependence of the conductivity above room temperature. The temperature dependence of the dc-conductivity in heavily doped poly(3-alkylthiophenes) changes above room temperature: instead of increasing with increased temperature, as at low temperatures, the conductivity decreases after reaching a maximum between 300 and 370 K. This effect is not due to thermal dedoping, which should be an irreversible process (or at least a function of both time and temperature). We propose that this maximum is caused by the disorder resulting from the thermochromic transition. Below 300 K the temperature dependence is in good agreement with thermal fluctuation induced tunneling model ( σ = σ ∞ exp( −T 1 (T 0 +T) ). We will discuss the anisotropy of conductivity in stretched samples in low temperature." @default.
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- W2043583150 date "1991-05-01" @default.
- W2043583150 modified "2023-09-28" @default.
- W2043583150 title "Temperature dependence of dc-conductivity in poly(3-alkylthiophenes) in temperature regime 20–400 K" @default.
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- W2043583150 doi "https://doi.org/10.1016/0379-6779(91)91523-d" @default.
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