Abstract
In our investigations, the generated voltage was ascertained in MIM elements of Langmuir-Blodegett (LB) film which is dielectric ultrathin film, and it was considered that the cause of the voltage generation was due to diffusion of electron in LB film. Change of the generated voltage was observed in early stage, and following characteristics were ascertained.
(1) The generated voltage reached the maximum value then decreases and became constant.
(2) The maximum generated voltage was increased with increase of the resistance connected between both electrodes (less than l mV in the case of R=108Ω, about 10mV in the case of R=1010Ω).
(3) The lapse of time until to reach the maximum generated voltage was increased with increase of the resistance connected between both electrodes (10s in the case of R=108Ω, 300s in the case of R=1010Ω).
In the present paper, the generated voltage in early stage is alalyzed by the electron diffusion and compared with the experimental values.