Conducting Langmuir-Blodgett films of polyaniline
Autor: | J. Paloheimo, P. Granholm, Henrik Stubb |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Physica Scripta. :146-149 |
ISSN: | 1402-4896 0031-8949 |
DOI: | 10.1088/0031-8949/1997/t69/026 |
Popis: | Langmuir-Blodgett films of polyaniline have been fabricated and electrically characterized. The conductivity of the doped films was studied as a function of film thickness, temperature (77 K < T < 300 K) and electric field (0 < F ≤ 105 V/cm). The low-field conductivity obeyed the behaviour σ(T) = σ0 exp [-(T0/T)1/2] over the whole temperature range measured, and ln (F) ∝ F1/(1 + ν) at higher fields. The result indicate variable-range hopping in a parabolic Coulomb quasi-gap. |
Databáze: | OpenAIRE |
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