Electrical Conduction of Poly (Vinyl Fluoride)

概要

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The relation between dc conductivity evaluated from one-minute current after a voltage application and reciprocal temperature bends notably above 50℃ supposedly due to an ionic layer build-up near an electrode and also due to the clean-up of charge carriers. The existence of the ionic layer is supported by the ac conductivity calculated from dielectric loss vs. 1/T curve and also by the current maximum in the current-time curves after the reversal of applied voltage polarity. The apparent activation energy of conduction E_c is about 23 kcal/mole. The mobility of charge carriers is estimated (μ≃2×10^<-8> cm^2/volt. sec at 102℃) from an initial slope of current-time curves assuming the clean-up effect of charge carrier and its activation energy E_μ is obtained as 16 kcal/mole. The difference of E_c and E_μ may give rise to a discussion of the origin of ions.
社団法人日本物理学会の論文
1970-10-05