Measurement of tunneling current through Al/polyimide Langmuir–Blodgett film/Al structure

Abstract
The dc conduction properties of Al/polyimide Langmuir–Blodgett (LB) film/Al structure are reported. The current-voltage characteristics and the temperature dependence of the current are measured and compared with expectation from a tunneling theory, which takes natural oxide of aluminum into consideration. It is concluded that the conduction in the structure with five- or seven-layered LB film is predominantly by direct tunneling of electrons.