D.C. conduction in Langmuir-Blodgett films with various electrode materials

摘要: Abstract Electrically insulating films of thickness from 2.5. to 40 nm were prepared by the technique Langmuir and Blodgett. These consist long-chain molecules such as lead stearate arranged with chains perpendicular electrode surface. Their d.c. electrical properties can be listed follows. 1. (1) The current-voltage characteristics is linear for fields below 105 V cm-1 exponential high fields. 2. (2) magnitude current depends strongly on material. We used Al, Hg, Si SnO2. Similar phenomena are observed in other insulators, although these effects very pronounced our films. It likely that space charge plays a role, we did not observe usual limited currents. experiments point towards an explanation terms process acting combination charge.