LANGMUIR AND LANGMUIR-BLODGETT-FILMS OF AMPHIPHILIC AND NONAMPHIPHILIC TTF DERIVATIVES AND THEIR MIXTURES

We have studied the ability of two amphiphilic TTF derivatives to form both Langmuir films and Langmuir-Blodgett films under different exper imental conditions. It has been found that these substances are capabl e of forming stable monolayers at the air-water interface and building up ordered LB films yielding Y-type LB films of high quality that wer e characterized by UV-vis and SEM having shown a reversibility behavio r in the iodine doping process. Another nonamphiphilic TTF derivative, which does not form real monolayers at the air-water interface has be en mixed with the amphiphilic TTF derivatives obtaining mixed stable m onolayers and ordered LB films that show a conductive behavior after a doping process with iodine. Cyclic voltammetry studies of the three T TF derivatives and their mixtures have been performed.