FABRICATION OF DYE-ADSORBED MEROCYANINE THIN-FILMS BY A BIAS VOLTAGE LANGMUIR-BLODGETT TECHNIQUE

We have investigated the effect of bias voltage applied to an electric ally conductive substrate on the formation of adsorption Langmuir-Blod gett (LB) films. In fabricating the adsorption LB films, a merocyanine dye with a long alkyl chain and a triphenylmethane dye are employed a s spreading and adsorbing molecules from an aqueous subphase, respecti vely. The results demonstrate that the bias voltage LB technique is a powerful tool for controlling the adsorption ratio of a variety of fun ctional dyes and the formation of dye aggregates.