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A study on the AC and transient electrical conduction in evaporated thin potassium iodide films

M N Pisanias, S N Georga and N I Xanthopoulos

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The AC conduction in thin potassium iodide films in the range 5 Hz to 20 kHz has been studied for applied voltages between 0.4 and 1.2 V at room temperature. The universal dielectric response sigma =b omega n for AC conductivity is obeyed for all the applied voltages. Taking into consideration the linearity in the AC conductivity and the nature of the potassium iodide films, previous results on the transient electrical conductivity of thin potassium iodide films are analysed and resolved into two components, one of which is associated with ionic conductivity and the other with the Poole-Frenkel effect.


PACS

81.15.Ef Vacuum deposition

73.61.Ng Insulators

61.85.+p Channeling phenomena (blocking, energy loss, etc.)

73.30.+y Surface double layers, Schottky barriers, and work functions

73.50.Fq High-field and nonlinear effects

Subjects

Surfaces, interfaces and thin films

Condensed matter: structural, mechanical & thermal

Dates

Issue 7 (14 July 1990)



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