Electrical Properties of Both a Monolayer at the Air/Water Interface and a Langmuir-Blodgett Film Sandwiched Between Aluminum Electrodes

수면상의 고분자막과 알루미늄 전자간의 Langmuir-Blodgett막에 대한 전기적 특성

Electrical properties of both a monolayer at the air/water interface and Langmuir-Blodgett films sandwiched between aluminum electrodes are studied using a current-measuring technique. A change in induced charges on an electrode suspended in the air was measured in combination with the surface area isotherm in the electrical measurement of the monolayer. A change in induced charges on an electrode is measured while heating the sample in the electrical measurement of the LB films. From both measurements, we elucidated that a spontaneous polarization plays very important role in the electrical properties of both a monolayer at the air/water interface and LB films sandwiched between aluminum electrodes.