PREPARATION AND CHARACTERIZATION OF MIXED CHARACTER LANGMUIR-BLODGETT-FILMS OF POLY-HEXA-DECYLTHIOPHENE

Attenuated Total Reflection (ATR) and Grazing Angle Incidence (GIR) sp ectroscopic techniques are used for the structural investigation of La ngmuir-Blodgett films resulting from the mixture of different relative concentrations of chemically synthesized poly-3-hexadecylthiophene (P HDT) and behenic acid. Due to the low hydrophilicity of the thiophene ring, the inclusion of fatty acid molecules is required to stabilize t he Langmuir film formed in the air-water interface. This film can then be transferred on sucessive down strokes of a vertically dipped subst rate to form head-to-tail structures.